CN217051258U - A new type of hoisting equipment for prefabricated stairs - Google Patents

Abstract

The utility model discloses a novel prefabricated staircase's lifting device, including the device storehouse, the both ends of device storehouse both sides are all reserved to have the opening part, and the intermediate position department of device storehouse top both sides has all seted up the through-hole, the four corners position department of device storehouse bottom all installs first wire rope coupling mechanism. The utility model discloses a two sets of racks respectively with the sliding connection who installs the storehouse, with the threaded connection of positive and negative lead screw, be connected with the meshing that corresponds the gear, make stair be about to lift by crane when the eminence, can control servo motor and drive positive and negative lead screw forward and rotate, make the rack drive the pivot that corresponds and the grip block on it rotate downwards and carry out the centre gripping fixed to stair, thereby guarantee its steadiness at the eminence, avoid because the junction atress of first wire rope coupling mechanism on the device storehouse is too big to take place serious accident, and can avoid second wire rope coupling mechanism and lift by crane the emergence of hoisting block junction not hard up the accident that stair dropped of back direct appearance.

Description

A new type of hoisting equipment for prefabricated stairs

technical field

The utility model relates to the technical field of building construction equipment, in particular to a novel hoisting equipment for prefabricated stairs.

Background technique

In the process of building construction, hoisting equipment is often used to hoist objects, such as prefabricated stairs, etc. Prefabricated stairs are prefabricated from materials such as concrete and steel bars through molds, and they are generally large in size and heavy in weight. Use relatively large lifting equipment to lift and install it.

When the hoisting equipment of the existing prefabricated stairs is in use, because the prefabricated stairs need to be placed close to the front wall in many cases, it is generally used to pre-embed connecting parts such as hanging rings on the prefabricated stairs, and hoist and install through rope connection, but in the actual use process In the middle, the force at the connection is relatively large, especially when it is affected by wind force when it is lifted into the air, which will easily cause certain safety hazards.

Utility model content

The purpose of the utility model is to propose a novel hoisting device for prefabricated stairs in order to solve the shortcomings existing in the prior art.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A novel prefabricated stair hoisting device includes a device bin, both ends of the device bin are provided with openings, and the middle positions of both sides of the top of the device bin are provided with through holes, and the bottom of the device bin is provided with a through hole. A first wire rope connection mechanism is installed at the four corner positions of the device compartment, and a second wire rope connection mechanism is installed at the four corner positions of the top of the device compartment, and a lifting block is installed at the end of the second wire rope connection mechanism away from the device compartment. A rotating shaft is arranged on both sides of one end of the inside of the warehouse, and a gear is installed at the middle position of the outer side of the rotating shaft. A servo motor is installed at the middle position of one side, and the output end of the servo motor is connected with a positive and negative lead screw, and the positive and negative lead screw extends to the inside of the device compartment. rack.

Preferably, the rotating shaft is symmetrically distributed with respect to the longitudinal center axis of the device compartment, and the rotating shaft and the device compartment form a relative rotation structure.

Preferably, a clamping plate is installed at one end of the first installation rod away from the rotating shaft, and the clamping plate and the first installation rod are vertically arranged.

Preferably, the rack and the gear are in meshing connection, and the rack and the front and back screw rods are threadedly connected, and the rack and the device compartment form a relative sliding structure.

Preferably, a second installation rod is installed on the side of the top of the rack near the lifting block, and the second installation rod passes through the through hole, and a mounting cylinder is installed on the top of the second installation rod near the side of the lifting block.

Preferably, a limit block is arranged inside the installation cylinder, and a spring is connected between the limit block and the installation cylinder.

Compared with the prior art, the utility model has the following beneficial effects:

1. Through the sliding connection of two sets of racks with the device compartment, the threaded connection with the positive and negative screw rods, and the meshing connection with the corresponding gears, when the stairs are about to be lifted to a high place, the servo motor can be controlled to drive the positive and negative screw rods to move forward. Rotate in the opposite direction, so that the rack drives the corresponding rotating shaft and the clamping plate on it to rotate downward to clamp and fix the stairs, so as to ensure its stability at a high place, and avoid the connection of the first wire rope connection mechanism on the device compartment. Serious accident due to excessive force.

2. A second installation rod, an installation cylinder and a limit block are arranged on the top of the rack, so that while the rack drives the first installation rod and the clamping plate to clamp the stairs, the second installation rod can drive the installation cylinder and the stair. The limit block clamps the hoisting block and cooperates with the bumps on it to limit each other, thereby further increasing the safety of the hoisting process and avoiding the stair falling directly after the connection between the second wire rope connection mechanism and the hoisting block is loose. accident.

Description of drawings

Fig. 1 is the front sectional structure schematic diagram of a kind of novel prefabricated staircase hoisting equipment proposed by the utility model;

Fig. 2 is a top-view structural schematic diagram of a hoisting equipment bin of a novel prefabricated staircase proposed by the utility model;

3 is a schematic top-view cross-sectional structural diagram of a hoisting equipment bin of a novel prefabricated staircase proposed by the utility model;

Fig. 4 is the front sectional structural schematic diagram of the hoisting equipment installation cylinder of a novel prefabricated staircase proposed by the utility model;

5 is a schematic three-dimensional structural diagram of a rack of a novel prefabricated stair hoisting equipment proposed by the utility model.

In the figure: 1 installation compartment, 2 opening, 3 through hole, 4 first wire rope connection mechanism, 5 second wire rope connection mechanism, 6 lifting block, 7 rotating shaft, 8 gear, 9 first installation rod, 10 clamping plate , 11 servo motor, 12 positive and negative screw, 13 rack, 14 second installation rod, 15 installation cylinder, 16 limit block, 17 spring.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation disclosed below. .

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Referring to Figures 1-5, a new type of prefabricated stair hoisting equipment includes a device compartment 1. Both ends of the two sides of the device compartment 1 are reserved with openings 2, and the middle positions on both sides of the top of the device compartment 1 are provided with openings 2. Through hole 3, the first wire rope connection mechanism 4 is installed at the four corner positions of the bottom of the device compartment 1, and the second wire rope connection mechanism 5 is installed at the four corner positions of the top of the device compartment 1, and the second wire rope connection mechanism 5 is far away from the device One end of the bin 1 is installed with a lifting block 6, and both sides of one end of the interior of the device bin 1 are provided with a rotating shaft 7, and a gear 8 is installed at the middle position of the outer side of the rotating shaft 7, and the outside of the rotating shaft 7 close to both ends is fixed with a first installation. Rod 9, and the first installation rod 9 runs through the opening 2, the rotating shaft 7 is symmetrically distributed relative to the longitudinal center axis of the device compartment 1, and the rotating shaft 7 and the device compartment 1 form a relative rotation structure, so that the rotating shaft 7 can be rotated when affected by external forces;

A clamping plate 10 is installed at the end of the first installation rod 9 away from the rotating shaft 7, and the clamping plate 10 and the first installation rod 9 are arranged vertically, so that when the rotating shaft 7 rotates correspondingly, the first installation rod 9 and the clamping plate can be driven. 10 Fits with both sides of the bottom stairs, so as to clamp and fix the stairs, and avoid excessive force on the connection of the first wire rope connection mechanism 4 during the whole lifting process;

A servo motor 11 is installed at the middle position of one side of the device compartment 1, and the output end of the servo motor 11 is connected with a forward and reverse screw 12, and the forward and reverse screw 12 extends to the inside of the device compartment 1, and the forward and reverse screw 12 is close to The outer sides of both ends are sleeved with racks 13, the racks 13 and the gear 8 are meshed and connected, and the racks 13 and the positive and negative screw rods 12 are threadedly connected, and the racks 13 and the device compartment 1 form a relative sliding structure, so that the positive and negative When the anti-screw rod 12 rotates, the two sets of racks 13 can slide in the opposite direction at the same time, thereby driving the two sets of rotating shafts 7 to drive the first installation rod 9 and the clamping plate 10 on them to rotate oppositely, thereby completing the clamping of the stairs. Or release the clamping;

A second installation rod 14 is installed on the side of the top of the rack 13 close to the lifting block 6 , and the second installation rod 14 penetrates through the through hole 3 , and a mounting cylinder is installed on the top of the second installation rod 14 close to the side of the lifting block 6 15, so that when the rack 13 moves correspondingly, the second installation rod 14 can drive the installation cylinder 15 on it to move in opposite directions, so as to clamp the limit block 16 and cooperate with the limit part on the limit block 16 to limit the upper and lower limits. bit;

A limit block 16 is arranged inside the installation cylinder 15, and a spring 17 is connected between the limit block 16 and the installation cylinder 15, so that the limit block 16 can replace the installation cylinder 15 to clamp the lifting block 6, and the limit block After 16 is in contact with the lifting block 6, when the rack 13 continues to move, the limit block 16 can slide in the installation cylinder 15 until the first installation rod 9 and the clamping plate 10 complete the clamping of the stairs.

When the utility model is used, as shown in Figures 1-5, the device is connected to the vehicle-mounted power supply on the hoist, the hoisting block 6 is connected and fixed with the winding rope part of the hoist, and a hoisting device is installed on the top of the stairs for hoisting. The first wire rope connecting mechanism 4 at the bottom of the device compartment 1 is respectively connected and fixed with the hanging ring and other mechanisms. The hoist drives the hoisting block 6 to lift up to a small height. At this time, the servo motor 11 is controlled to drive the positive and negative screw rod 12 to the forward direction. Rotating, through the screw connection of the two sets of racks 13 with the positive and negative screw rods 12 respectively, and the sliding connection with the device compartment 1, at this time, the two sets of racks 13 slide in the direction close to the middle, thereby driving the second installation rod 14 and The installation cylinder 15 and the limit block 16 on it move toward the direction close to the lifting block 6, so that the two sets of limit blocks 16 start to cooperate with each other to clamp the lifting block 6, and cooperate with the limit part on it to move up and down. Limit, so as to avoid the looseness of the connection of the second wire rope connection mechanism 5 in the subsequent large-scale lifting process, and the stairs are prone to fall directly. The set of rotating shafts 7 can respectively drive the first installation rod 9 and the clamping plate 10 on them to rotate downward until they cooperate with each other to clamp the stairs, so as to avoid the stress on the connection of the first wire rope connection mechanism 4 during the whole subsequent lifting process. If it is too large, the hoist drives the hoisting block 6 and the stairs to further lift and move until it is close to the installation position, the servo motor 11 is controlled to drive the forward and reverse screw 12 to rotate in the reverse direction, so that the second installation rod 14, the installation cylinder 15 and the limit The position block 16 releases the clamping limit on the lifting block 6, and the rotating shaft 7 drives the first installation rod 9 and the clamping plate 10 on it to rotate to the vertical upward position, so that the distance between the two sides of the device compartment 1 is reduced. It is smaller than the width of the stairs, so that the operator can control the lifting device to further fine-tune the stairs to the position close to the wall for installation.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. A novel hoisting device for prefabricated stairs comprises a device bin (1) and is characterized in that openings (2) are reserved at two ends of two sides of the device bin (1), through holes (3) are formed in the middle positions of two sides of the top of the device bin (1), first steel wire rope connecting mechanisms (4) are installed at four corners of the bottom of the device bin (1), second steel wire rope connecting mechanisms (5) are installed at four corners of the top of the device bin (1), a hoisting block (6) is installed at one end, away from the device bin (1), of each second steel wire rope connecting mechanism (5), rotating shafts (7) are arranged on two sides of one end inside the device bin (1), gears (8) are installed at the middle positions of the outer sides of the rotating shafts (7), first installation rods (9) are fixed on the outer sides, close to the two ends, of the rotating shafts (7), and first installation pole (9) run through opening part (2), servo motor (11) are installed to the intermediate position department of device storehouse (1) one side, and the output of servo motor (11) is connected with positive and negative lead screw (12) to positive and negative lead screw (12) extend to the inside in device storehouse (1), positive and negative lead screw (12) are close to the outside at both ends and all overlap and are equipped with rack (13).

2. The hoisting device of the novel prefabricated staircase according to claim 1, characterized in that the rotating shafts (7) are symmetrically distributed relative to the longitudinal central axis of the device cabin (1), and the rotating shafts (7) and the device cabin (1) form a relative rotation structure.

3. The hoisting device for the novel prefabricated staircase according to claim 1, characterized in that a clamping plate (10) is installed at one end of the first installation rod (9) far away from the rotating shaft (7), and the clamping plate (10) and the first installation rod (9) are vertically arranged.

4. The novel hoisting equipment for the prefabricated staircase according to claim 1, characterized in that the rack (13) is engaged with the gear (8), the rack (13) is in threaded connection with the positive and negative lead screws (12), and the rack (13) and the device cabin (1) form a relative sliding structure.

5. The novel prefabricated staircase hoisting device according to claim 1, wherein a second installation rod (14) is installed at the top of the rack (13) near one side of the hoisting block (6), the second installation rod (14) penetrates through the through hole (3), and an installation cylinder (15) is installed at the top of the second installation rod (14) near one side of the hoisting block (6).

6. The novel hoisting equipment for the prefabricated staircase according to claim 5, characterized in that a limiting block (16) is arranged inside the installation cylinder (15), and a spring (17) is connected between the limiting block (16) and the installation cylinder (15).

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