Hoisting mechanism for prefabricated stair installation

Abstract

The utility model discloses a hoisting mechanism for mounting prefabricated stairs, which relates to the technical field of hoisting mechanisms and comprises a hoisting frame, an axial positioning component arranged in the middle of the hoisting frame, a mounting plate arranged on the axial positioning component, a radial positioning component arranged on the bottom surface of the mounting plate, a hinge seat arranged on the positioning component and a hoisting component arranged on the hinge seat. The hoisting assembly is connected with the damping assembly through the connecting seat; through the cooperation of the axial positioning assembly and the radial positioning assembly, the vertical pulling force can be kept all the time, the practicability is improved, the capability of reducing the shaking of the stairs is achieved, through the cooperation of the hoisting assembly and the damping assembly, the descending height and buffering can be accurately controlled, the safety is improved, and the capability of preventing collision and damage is achieved; finally, the problem that the staircase is damaged due to violent shaking and difficult fine adjustment during hoisting is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting mechanisms, in particular to a hoisting mechanism for installing prefabricated stairs. Background Art

[0002] With the development of the construction industry, prefabricated building materials have been widely used for their convenient and fast installation methods and low prices. At present, stairs have also begun to be installed with prefabricated structures. Stairs are composed of continuous steps, platforms and enclosure components. Due to the large size of prefabricated stairs, they need to be moved and installed with the help of construction tools, namely lifting devices, during installation. Existing lifting mechanisms mostly use multiple ropes to lift objects. The length of the ropes cannot be accurately controlled and the pulling force is tilted, resulting in uneven stairs and violent shaking, which is neither safe nor convenient. In addition, the lifting of the existing lifting mechanism is completely dependent on the crane, and it is difficult for the crane operator to see the actual descent distance, which is easy to misjudge and cause the stairs to collide and be damaged, thereby increasing unnecessary costs. Therefore, the present invention makes improvements to the above problems. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a hoisting mechanism for installing prefabricated stairs.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A hoisting mechanism for installing prefabricated stairs includes a hanging frame, an axial positioning assembly is provided in the middle of the hanging frame, a mounting plate is provided on the axial positioning assembly, a radial positioning assembly is provided on the bottom surface of the mounting plate, a hinge seat is provided on the positioning assembly, a hoisting assembly is provided on the hinge seat, and the hoisting assembly is connected to a shock-absorbing assembly through a connecting seat.

[0006] Preferably, the axial positioning assembly includes a guide rail fixed horizontally to the middle of the top surface of the hanging frame, a first bidirectional screw is provided in the guide rail, one end of the first bidirectional screw passes through the hanging frame and is connected to the first motor, and the other end is rotatably connected to the inner side surface of the hanging frame, the first motor is fixedly mounted on the outer side surface of the hanging frame, a mounting plate is symmetrically sleeved on the outer side of the first bidirectional screw, the top of the mounting plate is fixedly connected to a limit plate, and the bottom surface of the limit plate abuts against the top surface of the guide rail.

[0007] Preferably, the radial positioning assembly includes a bearing seat fixed on both sides of the bottom surface of the mounting plate, a second bidirectional screw is provided in the bearing seat, one end of the second bidirectional screw passes through the bearing seat and is connected to the second motor, and a hinge seat is symmetrically provided on the outside of the second bidirectional screw.

[0008] Preferably, the lifting assembly includes an articulated seat, a take-up wheel is horizontally provided on the inner side of the articulated seat, one end of the take-up wheel passes through the articulated seat and is connected to the third motor, and the other end is rotatably connected to the articulated seat, and a steel rope is provided on the outer side of the take-up wheel, one end of the steel rope is fixed to the outer surface of the take-up wheel, and the other end is fixed to the connecting seat.

[0009] Preferably, a connecting plate is fixedly connected to the bottom end of the connecting seat, and a plurality of countersunk holes are provided on the top surface of the connecting plate.

[0010] Preferably, the shock absorbing assembly includes a shock absorbing tube, which is fixed on the top surface of the connecting plate. A spring is provided in the shock absorbing tube, the bottom surface of the spring abuts against one end of the shock absorbing foot, and the other end of the shock absorbing foot passes through the connecting plate and is fixed to the shock absorbing pad.

[0011] Compared with the existing technology, the beneficial effects of the present invention are: the present invention facilitates to keep the pulling force vertical at all times through the cooperation of the axial positioning component and the radial positioning component, improves practicality, and realizes the ability to reduce the shaking of the stairs; and then through the cooperation of the lifting component and the shock-absorbing component, it facilitates to accurately control the descent height and buffering, improves safety, and realizes the ability to prevent collision damage, and finally solves the problem of damage to the stairs caused by violent shaking of the stairs during lifting and difficulty in fine-tuning. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the mechanism proposed in this utility model;

[0014] Figure 2 This is a side view schematic diagram of the overall structure of the mechanism proposed by the utility model;

[0015] Figure 3 This is a schematic front view of the partial structure of the mechanism proposed by the utility model;

[0016] Figure 4 This is a side view schematic diagram of the lifting assembly structure proposed by the utility model;

[0017] Figure 5 The utility model proposed Figure 4 An enlarged cross-sectional view of point A.

[0018] Serial numbers in the figure: 1. Hanging frame; 2. First bidirectional screw; 3. First motor; 4. Mounting plate; 5. Second bidirectional screw; 6. Second motor; 7. Articulated seat; 8. Take-up wheel; 9. Third motor; 10. Steel rope; 11. Connecting seat; 12. Connecting plate; 13. Shock-absorbing cylinder; 14. Spring; 15. Shock-absorbing foot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example: See Figure 1-5 The utility model is a kind of hoisting mechanism for installing prefabricated stairs, comprising a hanging frame 1, an axial positioning component is provided in the middle of the hanging frame 1, a mounting plate 4 is provided on the axial positioning component, a radial positioning component is provided on the bottom surface of the mounting plate 4, a hinge seat 7 is provided on the positioning component, a hoisting component is provided on the hinge seat 7, and the hoisting component is connected to the shock-absorbing component through the connecting seat 11. The modular design facilitates the maintenance and upgrading of the mechanism; the axial positioning component comprises a guide rail fixed horizontally in the middle of the top surface of the hanging frame 1, a first bidirectional screw 2 is provided in the guide rail, one end of the first bidirectional screw 2 passes through the hanging frame 1 and is connected to the first motor 3 and the other end The end is rotatably connected to the inner side of the hanging frame 1, and the first motor 3 is fixedly installed on the outer side of the hanging frame 1. The outer side of the first bidirectional screw 2 is symmetrically sleeved with a mounting plate 4, and the top of the mounting plate 4 is fixedly connected to the limit plate, and the bottom surface of the limit plate abuts the top surface of the guide rail. The radial positioning assembly includes a bearing seat fixedly connected to both sides of the bottom surface of the mounting plate 4, and a second bidirectional screw 5 is provided in the bearing seat. One end of the second bidirectional screw 5 passes through the bearing seat and is connected to the second motor 6. The outer side of the second bidirectional screw 5 is symmetrically sleeved with a hinge seat 7. Through the cooperation of the axial positioning assembly and the radial positioning assembly, it is convenient to keep the pulling force vertical at all times, thereby improving practicality.

[0021] In the present utility model, the hoisting assembly includes an articulated seat 7, a take-up wheel 8 is horizontally provided on the inner side of the articulated seat 7, one end of the take-up wheel 8 passes through the articulated seat 7 and is connected to the third motor 9, and the other end is rotatably connected to the articulated seat 7, a steel rope 10 is sleeved on the outer side of the take-up wheel 8, one end of the steel rope 10 is fixed to the outer surface of the take-up wheel 8, and the other end is fixed to the connecting seat 11. Through the cooperation of the third motor 9 and the steel rope 10, it is convenient to accurately control the descending height, thereby improving practicality; the bottom end of the connecting seat 11 is fixed to a connecting plate 12, A plurality of countersunk holes are provided on the top surface of the connecting plate 12. Through the cooperation of the connecting plate 12 and the countersunk holes, the lifting mechanism and the stairs are conveniently connected, thereby improving stability. The shock-absorbing assembly includes a shock-absorbing cylinder 13, which is fixedly connected to the top surface of the connecting plate 12. A spring 14 is provided in the shock-absorbing cylinder 13. The bottom surface of the spring 14 abuts against one end of the shock-absorbing foot 15. The other end of the shock-absorbing foot 15 passes through the connecting plate 12 and is fixedly connected to the shock-absorbing pad. Through the cooperation of the spring 14 and the shock-absorbing foot 15, it is convenient to buffer the gravity during descent, thereby improving stability.

[0022] Working principle: When using the present invention, first power all electrical equipment; then perform the installation operation, first install the lifting mechanism on the crane, then control the crane to move the lifting mechanism to the top of the target stairs, and then install the connecting plate 12 on the four diagonal corners around the stairs by screwing screws into the countersunk holes, and the installation operation can be completed; finally perform the lifting operation, first control the crane to straighten the steel rope 10, during which the first motor 3 and the second motor 6 are controlled in real time to control the first bidirectional screw 2 and the second bidirectional screw 5 respectively, so that the mounting plate 4 and the hinge seat 7 move relative to each other until the steel rope 10 is vertical, and then control the third motor 9 to control the take-up wheel 8 to rotate, thereby controlling the length of the steel rope 10 until the stairs are level, and then control the crane to lift the stairs to the vicinity of the target position, and finally control the third motor 9 to retract and release the steel rope 10 in real time until it lands smoothly. During use, the shock-absorbing foot 15 will first contact the platform. Under the action of the spring 14, the fall of the stairs during assembly will be effectively cushioned; after completing all operations, disconnect all power supplies.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hoisting mechanism for installing a prefabricated staircase, comprising a hoisting frame (1), characterized in that: An axial positioning assembly is provided in the middle of the hanging frame (1), a mounting plate (4) is provided on the axial positioning assembly, a radial positioning assembly is provided on the bottom surface of the mounting plate (4), a hinge seat (7) is provided on the positioning assembly, a hanging assembly is provided on the hinge seat (7), and the hanging assembly is connected to the shock absorbing assembly via a connecting seat (11).

2. A hoisting mechanism for installing a prefabricated staircase according to claim 1, characterized in that: The axial positioning assembly includes a guide rail fixed horizontally to the middle of the top surface of the hanging frame (1), a first bidirectional screw (2) is provided in the guide rail, one end of the first bidirectional screw (2) passes through the hanging frame (1) and is connected to the first motor (3), and the other end is rotatably connected to the inner side surface of the hanging frame (1), the first motor (3) is fixedly mounted on the outer side surface of the hanging frame (1), and a mounting plate (4) is symmetrically sleeved on the outer side of the first bidirectional screw (2), the top of the mounting plate (4) is fixedly connected to a limit plate, and the bottom surface of the limit plate abuts against the top surface of the guide rail.

3. The hoisting mechanism for installing a prefabricated staircase according to claim 1, characterized in that: The radial positioning assembly includes bearing seats fixedly connected to both sides of the bottom surface of the mounting plate (4), a second bidirectional screw (5) is provided in the bearing seat, one end of the second bidirectional screw (5) passes through the bearing seat and is connected to the second motor (6), and a hinge seat (7) is symmetrically sleeved on the outer side of the second bidirectional screw (5).

4. The hoisting mechanism for installing a prefabricated staircase according to claim 1, characterized in that: The hoisting assembly includes an articulated seat (7), a take-up wheel (8) is horizontally provided on the inner side of the articulated seat (7), one end of the take-up wheel (8) passes through the articulated seat (7) and is connected to the third motor (9), and the other end is rotatably connected to the articulated seat (7), and a steel rope (10) is sleeved on the outer side of the take-up wheel (8), one end of the steel rope (10) is fixed to the outer side surface of the take-up wheel (8), and the other end is fixed to the connecting seat (11).

5. The hoisting mechanism for installing a prefabricated staircase according to claim 4, characterized in that: A connecting plate (12) is fixedly connected to the bottom end of the connecting seat (11), and a plurality of countersunk holes are provided on the top surface of the connecting plate (12).

6. The hoisting mechanism for installing a prefabricated staircase according to claim 1, characterized in that: The shock-absorbing assembly includes a shock-absorbing cylinder (13), the shock-absorbing cylinder (13) is fixedly connected to the top surface of the connecting plate (12), a spring (14) is provided in the shock-absorbing cylinder (13), the bottom surface of the spring (14) abuts against one end of the shock-absorbing foot (15), and the other end of the shock-absorbing foot (15) passes through the connecting plate (12) and is fixedly connected to the shock-absorbing pad.

Images