A prefabricated stair hoisting device

Abstract

The utility model relates to building technical field especially relates to a prefabricated stair hoisting device, include: balance piece, be equipped with drive cavity in balance piece, drive mechanism, its installation is in drive cavity, first lifting hook and second lifting hook, its respectively install in drive mechanism, and extend to balance piece outside, and balance piece bottom is equipped with the movable slot of first lifting hook and second lifting hook movement, drive mechanism is used for driving first lifting hook and second lifting hook to move to balance piece center simultaneously or to balance piece edge. First lifting hook and second lifting hook are to move to balance piece center simultaneously or to balance piece edge, therefore, first lifting hook and second lifting hook to balance piece's center point's distance is equal forever, can guarantee therefore when hoisting stair, balance piece stress balance, will not appear the phenomenon of toppling.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a prefabricated staircase hoisting device. Background Technology

[0002] Precast stairs are stair units that are manufactured in a factory and then installed on the construction site. Precast stairs are widely used in various building projects, including residential buildings, office buildings, commercial complexes, and public facilities, and are especially prevalent in prefabricated buildings.

[0003] In existing technologies, most hoisting operations utilize a balance bar system. Multiple hooks are fixedly installed on the balance bar, and two hooks are selected for hoisting based on the length between the prefabricated hooks on the staircase. However, this method may not allow for the selection of hooks with precisely the correct distance, resulting in a slight tilt in the steel cable connecting the balance bar and the prefabricated staircase during hoisting, thus affecting safety. Currently, movable hooks have also emerged, but these are independently controlled. Therefore, operators must ensure that both hooks are equidistant from the center of the balance bar; otherwise, tilting may occur during hoisting, compromising safety. Therefore, it is necessary to propose a method to solve or at least mitigate the aforementioned shortcomings. Utility Model Content

[0004] The main objective of this invention is to provide a prefabricated staircase hoisting device to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides a prefabricated staircase hoisting device, comprising: A balancing component, wherein a driving cavity is provided within the balancing component; A drive mechanism is mounted in the drive cavity; The first hook and the second hook are respectively installed on the drive mechanism and extend out of the balance member. The bottom of the balance member is provided with a movable groove for the first hook and the second hook to move. The drive mechanism is used to drive the first hook and the second hook to move simultaneously toward the center of the balancer or toward the edge of the balancer.

[0006] Furthermore, the drive mechanism includes: A motor is mounted at the end of the first end of the balancer, and the output shaft of the motor extends into the drive cavity; A bidirectional screw is installed in the drive cavity and is drively connected to the output shaft of the motor; the bidirectional screw includes a first threaded portion and a second threaded portion; A first sliding component and a second sliding component are respectively disposed in the drive cavity, and the first sliding component is threadedly connected to the first threaded portion, and the second sliding component is threadedly connected to the second threaded portion; The first hook is connected to the first sliding assembly, and the second hook is connected to the second sliding assembly.

[0007] Furthermore, the first sliding assembly includes a first slider and a first nut; the first slider is slidably connected to the driving cavity, the first slider has a first mounting hole, the first nut is installed in the first mounting hole, and the first nut is threadedly connected to the first threaded portion; The second sliding assembly includes a second slider and a second nut; the second slider is slidably connected to the driving cavity, the second slider has a second mounting hole, the second nut is installed in the second mounting hole, and the second nut is threadedly connected to the second threaded portion.

[0008] Furthermore, a first mounting cover is detachably connected to the first end of the balancing component, and a second mounting cover is detachably connected to the second end of the balancing component.

[0009] Furthermore, the motor is mounted on the first mounting cover, and the output shaft of the motor passes through the first mounting cover and extends into the drive cavity to be connected to the bidirectional screw drive.

[0010] Furthermore, the second mounting cover is equipped with a counterweight.

[0011] Furthermore, the balancing component is provided with a support portion, which is located at the center of the drive cavity, and the bidirectional screw passes through the support portion.

[0012] Furthermore, a pair of third hooks are provided on the top of the balancing component.

[0013] Furthermore, a level is installed on the balancing component.

[0014] Furthermore, the motor is a geared motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this utility model, the prefabricated staircase hoisting device has a first hook and a second hook that move simultaneously toward the center of the balancing component or toward the edge of the balancing component. Therefore, the distances from the first hook and the second hook to the center point of the balancing component are always equal, ensuring that the balancing component is balanced during staircase hoisting and will not tip over. At the same time, the drive mechanism continuously drives the first hook and the second hook, so the position of the first hook and the second hook can be adjusted to ensure that the steel wire rope connecting the hoisting device and the prefabricated staircase is in the vertical plane, thus ensuring the safety of hoisting. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure in one embodiment of the present invention; Figure 2 This is a structural schematic diagram of the hoisting device hoisting a prefabricated staircase in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the balancing component in one embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of the drive mechanism in one embodiment of the present invention.

[0018] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0019] Explanation of icon numbers: 1. Balancing component; 101. Drive cavity; 102. Movable groove; 103. Support part; 2. Drive mechanism; 201. Motor; 202. Bidirectional screw; 2021. First threaded part; 2022. Second threaded part; 203. First sliding assembly; 2031. First slider; 2032. First nut; 204. Second sliding assembly; 2041. Second slider; 2042. Second nut; 3. First hook; 4. Second hook; 5. First mounting cover; 6. Second mounting cover; 7. Counterweight; 8. Third hook. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] Please see the appendix Figures 1 to 4 A prefabricated staircase hoisting device according to one embodiment of the present invention includes: Balance component 1, wherein a drive cavity 101 is provided inside the balance component 1; Drive mechanism 2 is installed in the drive cavity 101; The first hook 3 and the second hook 4 are respectively installed on the drive mechanism 2 and extend out of the balance member 1. The bottom of the balance member 1 is provided with a movable groove 102 for the first hook 3 and the second hook 4 to move. The drive mechanism 2 is used to drive the first hook 3 and the second hook 4 to move simultaneously toward the center of the balance member 1 or toward the edge of the balance member 1.

[0024] In this embodiment, when it is necessary to hoist the prefabricated staircase, firstly, according to the position of the pre-installed lifting lugs on the prefabricated staircase, the first hook 3 and the second hook 4 are driven to move by the drive mechanism 2 so that the distance between the first hook 3 and the second hook 4 is consistent with the distance between the lifting lugs on the prefabricated staircase; then, the hoisting device of the prefabricated staircase is bound with steel wire ropes, usually four steel wire ropes are used, where the first steel wire rope is bound to the first pre-installed lifting lug and the first hook 3, the second steel wire rope is bound to the second pre-installed lifting lug and the first hook 3, the third steel wire rope is bound to the third pre-installed lifting lug and the second hook 4, and the fourth steel wire rope is bound to the fourth pre-installed lifting lug and the second hook 4; finally, the hoisting device and the prefabricated staircase connected to the hoisting device are lifted by a crane to install the prefabricated staircase. In this embodiment, the first hook 3 and the second hook 4 move simultaneously toward the center of the balance member 1 or toward the edge of the balance member 1. Therefore, the distances from the first hook 3 and the second hook 4 to the center point of the balance member 1 are always equal. This ensures that the balance member 1 is balanced during the hoisting of the stairs and will not tip over. At the same time, the drive mechanism 2 continuously drives the first hook 3 and the second hook 4. Therefore, by adjusting the positions of the first hook 3 and the second hook 4, the steel wire rope connecting the hoisting device and the prefabricated stairs can be kept in the vertical plane, ensuring the safety of the hoisting.

[0025] Furthermore, the drive mechanism 2 includes: Motor 201 is installed at the end of the first end of the balance member 1, and the output shaft of motor 201 extends into the drive cavity 101; A bidirectional screw 202 is installed in the drive cavity 101 and is connected to the output shaft of the motor 201; the bidirectional screw 202 includes a first threaded portion 2021 and a second threaded portion 2022. The first sliding component 203 and the second sliding component 204 are respectively disposed in the driving cavity 101, and the first sliding component 203 is threadedly connected to the first threaded portion 2021, and the second sliding component 204 is threadedly connected to the second threaded portion 2022. The first hook 3 is connected to the first sliding assembly 203, and the second hook 4 is connected to the second sliding assembly 204.

[0026] In this embodiment, the working principle of the drive mechanism 2 is as follows: when the motor 201 is started, the output shaft of the motor 201 drives the bidirectional screw 202 to rotate. When the bidirectional screw 202 rotates, it will drive the first sliding component 203 and the second sliding component 204 to move in opposite directions at the same speed. Therefore, it can be ensured that the distance between the first sliding component 203 and the second sliding component 204 and the center position of the balancer 1 is always consistent. At the same time, the cooperation between the bidirectional screw 202 and the sliding component can also steplessly adjust the distance between the first sliding component 203 and the second sliding component 204.

[0027] Further, the first sliding assembly 203 includes a first slider 2031 and a first nut 2032; the first slider 2031 is slidably connected to the driving cavity 101, the first slider 2031 is provided with a first mounting hole, the first nut 2032 is installed in the first mounting hole, and the first nut 2032 is threadedly connected to the first threaded portion 2021. The second sliding assembly 204 includes a second slider 2041 and a second nut 2042; the second slider 2041 is slidably connected to the driving cavity 101, the second slider 2041 is provided with a second mounting hole, the second nut 2042 is installed in the second mounting hole, and the second nut 2042 is threadedly connected to the second threaded portion 2022.

[0028] Furthermore, the first end of the balancing component 1 is detachably connected to a first mounting cover 5, and the second end of the balancing component 1 is detachably connected to a second mounting cover 6.

[0029] In this embodiment, both the first mounting cover 5 and the second mounting cover 6 are detachably connected to the balance member 1, thus facilitating the installation of the drive mechanism 2 within the disassembly drive cavity 101.

[0030] Furthermore, the motor 201 is mounted on the first mounting cover 5, and the output shaft of the motor 201 passes through the first mounting cover 5 and extends into the drive cavity 101 to be connected to the bidirectional screw 202 for transmission.

[0031] Furthermore, the second mounting cover 6 is equipped with a counterweight 7.

[0032] In this embodiment, the counterweight 7 acts as a counterweight to counteract the gravity of the motor 201 at the other end of the balancer 1, so that the center of gravity of the balancer 1 is located at the center of the balancer 1.

[0033] Furthermore, the balancing component 1 is provided with a support portion 103, which is located at the center of the drive cavity 101, and the bidirectional screw 202 passes through the support portion 103.

[0034] In this embodiment, the support part 103 serves to support the bidirectional screw 202 and prevent the bidirectional screw 202 from bending due to being too long.

[0035] Furthermore, a pair of third hooks 8 are provided on the top of the balancing component 1.

[0036] In this embodiment, the third hook 8 is used to connect to the crane, and both third hooks 8 are connected to the crane by wire ropes.

[0037] Furthermore, a level (not shown in the figure) is installed on the balancing component 1.

[0038] In this embodiment, by setting a level, it is easy to see whether the balancing component 1 is in a horizontal state.

[0039] Furthermore, the motor 201 is a geared motor 201.

[0040] The above are merely preferred embodiments of this utility model and do not limit the scope of protection of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A prefabricated staircase hoisting device, characterized in that, include: A balancing component, wherein a driving cavity is provided within the balancing component; A drive mechanism is mounted in the drive cavity; The first hook and the second hook are respectively installed on the drive mechanism and extend out of the balance member. The bottom of the balance member is provided with a movable groove for the first hook and the second hook to move. The drive mechanism is used to drive the first hook and the second hook to move simultaneously toward the center of the balancer or toward the edge of the balancer.

2. The prefabricated staircase hoisting device according to claim 1, characterized in that, The drive mechanism includes: A motor is mounted at the end of the first end of the balancer, and the output shaft of the motor extends into the drive cavity; A bidirectional screw is installed in the drive cavity and is drively connected to the output shaft of the motor; the bidirectional screw includes a first threaded portion and a second threaded portion; A first sliding component and a second sliding component are respectively disposed in the drive cavity, and the first sliding component is threadedly connected to the first threaded portion, and the second sliding component is threadedly connected to the second threaded portion; The first hook is connected to the first sliding assembly, and the second hook is connected to the second sliding assembly.

3. The prefabricated staircase hoisting device according to claim 2, characterized in that, The first sliding assembly includes a first slider and a first nut; the first slider is slidably connected to the driving cavity, the first slider has a first mounting hole, the first nut is installed in the first mounting hole, and the first nut is threadedly connected to the first threaded portion. The second sliding assembly includes a second slider and a second nut; the second slider is slidably connected to the driving cavity, the second slider has a second mounting hole, the second nut is installed in the second mounting hole, and the second nut is threadedly connected to the second threaded portion.

4. The prefabricated staircase hoisting device according to claim 2, characterized in that, The first end of the balancing component is detachably connected to a first mounting cover, and the second end of the balancing component is detachably connected to a second mounting cover.

5. The prefabricated staircase hoisting device according to claim 4, characterized in that, The motor is mounted on the first mounting cover, and the output shaft of the motor passes through the first mounting cover and extends into the drive cavity to be connected to the bidirectional screw drive.

6. The prefabricated staircase hoisting device according to claim 4, characterized in that, The second mounting cover is equipped with a counterweight.

7. The prefabricated staircase hoisting device according to claim 2, characterized in that, The balancing component has a support portion located at the center of the drive cavity, and the bidirectional screw passes through the support portion.

8. The prefabricated staircase hoisting device according to claim 1, characterized in that, The top of the balancing component is provided with a pair of third hooks.

9. The prefabricated staircase hoisting device according to claim 1, characterized in that, A level is installed on the balancing component.

10. The prefabricated staircase hoisting device according to claim 2, characterized in that, The motor is a geared motor.

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