CN219730342U - An auxiliary lifting device - Google Patents

Abstract

The utility model discloses an auxiliary lifting device which comprises a bottom plate, a moving mechanism for adjusting the lifting position of a tower crane, and a lifting mechanism for lifting objects, wherein the moving mechanism is positioned above the bottom plate, the lifting mechanism is positioned below the moving mechanism, and the auxiliary lifting device further comprises a locking mechanism for preventing the objects from falling, and the locking mechanism is positioned between the lifting mechanisms. The beneficial effects are that: when the lifting rope breaks, the electromagnet can be powered off to enable the lifting rope to downwards release the spring below, then the sliding plate is downwards pressed, and then the three steel balls are pressed to enable the sliding sleeve to be driven to downwards move, and then the three steel balls are mutually close due to the fact that the lower end of the fixing sleeve is narrower, so that the middle lifting rope is clamped and fixed, the lifting rope is fixed in the sliding sleeve, further, the lifting weight is prevented from suddenly falling down to cause a safety accident below, the protection capability of the device is improved, and the safety performance is improved.

Description

An auxiliary lifting device

Technical field

The utility model relates to the field of hoisting devices, in particular to an auxiliary hoisting device.

Background technique

Tower cranes are divided into two types according to the boom form: horizontal type and pressure rod type. They have large working space and are mainly used for vertical and horizontal transportation of materials and installation of building components in house construction. It mainly consists of three parts: metal structure, working mechanism and electrical system.

In the existing technology, when the tower crane is performing construction, the surrounding protection devices mostly use enclosures to isolate the lifting area, which cannot take effective protection measures for the lifted heavy objects. Due to reasons such as the heavy lifting of the heavy objects, it may The hanging rope may break, causing the heavy object to fall, which may cause a safety accident.

Utility model content

The purpose of this utility model is to provide an auxiliary hoisting device in order to solve the above problems.

The utility model achieves the above objects through the following technical solutions:

An auxiliary lifting device includes a base plate, a moving mechanism for adjusting the lifting position of a tower crane, and a lifting mechanism for lifting objects. The moving mechanism is located above the base plate, and the lifting mechanism is located on the moving Below the mechanism, a locking mechanism is also included to prevent objects from falling, and the locking mechanism is located between the lifting mechanisms;

The locking mechanism includes a fixed cover. The fixed cover is arranged between the lifting mechanisms. An electromagnet is installed on the upper end of the fixed cover. A fixed sleeve is arranged inside the fixed cover. A sliding sleeve is installed on the fixed sleeve. Inside, the bottom end of the sliding sleeve is surrounded by three steel balls, the upper end of the steel balls is provided with a sliding plate, and a spring is connected between the sliding plate and the fixed cover;

Preferably: the steel ball is rotationally connected to the sliding sleeve, and both the steel ball and the sliding sleeve are slidingly connected to the fixed sleeve.

Preferably: the sliding plate is slidingly connected to the sliding sleeve, and the fixed cover, the fixed sleeve and the sliding sleeve are all made of aluminum.

Preferably: the lifting mechanism includes a third motor, the third motor is installed in front of the moving mechanism, a rewinding roller is arranged above the fixed cover, and a hanging rope and a hanging hook are wound on the surface of the rewinding roller. Installed at the lower end of the sling.

Preferably: the moving mechanism includes a sliding frame, the sliding frame is arranged outside the rewinding roller, a sliding rail is provided above the sliding frame, and a threaded rod is rotatably installed inside the sliding rail. A first motor is provided on the side, and a rotating rod is fixedly installed below the slide rail.

Preferably: the sliding frame is slidingly connected to the slide rail, the threaded rod is threaded to the sliding frame, and the rotating rod is connected to the front and rear sides of the slide rail with connecting plates.

Compared with the existing technology, the beneficial effects of this utility model are as follows:

By providing a fixed sleeve, a sliding sleeve, an electromagnet, etc., when the hanging rope breaks, the electromagnet will immediately cut off the power to release the spring below, thereby pressing the sliding plate downward, and then pressing the three steel balls. Press it to drive the sliding sleeve to move downward. As the lower end of the fixed sleeve becomes narrower and narrower, the three steel balls are brought closer to each other, thereby clamping and fixing the hanging rope in the middle, so that the hanging rope is fixed in the sliding sleeve, and then It prevents the sudden fall of the lifted heavy objects from causing safety accidents below, improves the protection capability of the device and improves the safety performance.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a spatial perspective view of an auxiliary hoisting device according to the present utility model;

Figure 2 is a schematic structural diagram of the moving mechanism and lifting mechanism of an auxiliary hoisting device according to the present utility model;

Figure 3 is a structural cross-sectional view of the moving mechanism of an auxiliary hoisting device according to the present utility model;

Figure 4 is a structural cross-sectional view of the locking mechanism of the auxiliary lifting device according to the present invention.

The reference symbols are explained as follows:

1. Base plate; 2. Moving mechanism; 21. Base; 22. Rotating rod; 23. Slide rail; 24. First motor; 25. Threaded rod; 26. Second motor; 27. Sliding frame; 3. Locking mechanism ; 31. Fixed cover; 32. Fixed sleeve; 33. Sliding sleeve; 34. Steel balls; 35. Sliding plate; 36. Spring; 37. Electromagnet; 4. Lifting mechanism; 41. Third motor; 42. Winding roller ; 43. Suspension rope; 44. Hook.

Detailed ways

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. The novel and simplified description does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined by "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The utility model will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1 to 4, an auxiliary lifting device includes a base plate 1, a moving mechanism 2 used to adjust the lifting position of a tower crane, and a lifting mechanism 4 used to lift objects. The moving mechanism 2 is located on the base plate 1 Above, the lifting mechanism 4 is located below the moving mechanism 2, and also includes a locking mechanism 3 to prevent objects from falling. The locking mechanism 3 is located between the lifting mechanisms 4;

In this embodiment: the moving mechanism 2 includes a base 21, a rotating rod 22, a slide rail 23, a first motor 24, a threaded rod 25, a second motor 26, and a sliding frame 27. The base 21 is arranged above the base plate 1, and the second motor 26 is installed inside the base 21, the rotating rod 22 is installed above the base 21, the slide rail 23 is installed above the rotating rod 22, the first motor 24 is installed on one side of the slide rail 23, the threaded rod 25 is installed inside the slide rail 23, and the sliding frame The first motor There is a handle installed on the outside of 24, and connecting plates are connected to the front and rear sides of the rotating rod 22 and the slide rail 23. The kinetic energy of the second motor 26 drives the rotating rod 22 to rotate, which in turn drives the slide rail 23 to rotate, and then the kinetic energy of the first motor 24 drives the thread. The rod 25 rotates, thereby driving the sliding frame 27 to slide in the slide rail 23. Through the joint action of the two, heavy objects at different positions can be effectively lifted, which improves the flexibility of the device and speeds up the lifting time;

In this embodiment: the lifting mechanism 4 includes a third motor 41, a rewinding roller 42, a hanging rope 43, and a hook 44. The third motor 41 is installed in front of the sliding frame 27, and the rewinding roller 42 is arranged above the fixed cover 31. A hanging rope 43 is wound around the surface of the rewinding roller 42, and a hook 44 is installed at the lower end of the hanging rope 43. The rewinding roller 42 is rotationally connected to the sliding frame 27, and the kinetic energy of the third motor 41 drives the rewinding roller 42 to rotate, thereby driving the hanging rope. 43 is rolled up so that the hook 44 can lift the heavy object, which facilitates the lifting of the heavy object and saves a lot of labor;

In this embodiment: the locking mechanism 3 includes a fixed cover 31, a fixed sleeve 32, a sliding sleeve 33, steel balls 34, a sliding plate 35, a spring 36, and an electromagnet 37. The fixed cover 31 is arranged between the lifting mechanisms 4, and the electromagnet 37 is installed on the upper end of the fixed cover 31, the fixed cover 32 is set inside the fixed cover 31, the sliding cover 33 is installed inside the fixed cover 32, the bottom end of the sliding cover 33 is surrounded by three steel balls 34, and the upper end of the steel balls 34 is provided with a sliding plate 35. A spring 36 is connected between the plate 35 and the fixed cover 31. The fixed cover 31 is fixedly connected to the fixed sleeve 32. The steel ball 34 is rotationally connected to the sliding sleeve 33. The steel ball 34 and the sliding sleeve 33 are both slidingly connected to the fixed sleeve 32. The sliding plate 35 is connected to the fixed sleeve 32. The sliding sleeve 33 is slidingly connected. When the hanging rope 43 breaks, the electromagnet 37 will immediately cut off the power to release the spring 36 below, and then press the sliding plate 35 downward, and then press the three steel balls 34. It drives the sliding sleeve 33 to move downward, and as the lower end of the fixed sleeve 32 becomes narrower and narrower, the three steel balls 34 are brought closer to each other, thereby clamping and fixing the hanging rope 43 in the middle, so that the hanging rope 43 is fixed on the sliding sleeve Within 33, it prevents the sudden fall of the lifted heavy objects from causing safety accidents below, improves the protection capability of the device and improves the safety performance.

Working principle: first, the kinetic energy of the second motor 26 drives the rotating rod 22 to rotate, and then drives the slide rail 23 to rotate, and then the kinetic energy of the first motor 24 drives the threaded rod 25 to rotate, and then drives the sliding frame 27 to slide in the slide rail 23. The combined effect of the two can effectively lift heavy objects at different positions, which improves the flexibility of the device and speeds up the lifting time. The kinetic energy of the third motor 41 drives the winding roller 42 to rotate, and then drives the lifting rope 43 The winding is carried out so that the hook 44 can lift the heavy object, which facilitates the lifting of the heavy object and saves a lot of labor. When the lifting rope 43 breaks, the electromagnet 37 will immediately cut off the power to make it lift the spring below. 36 is released downward, and then the sliding plate 35 is pressed downward, and then the three steel balls 34 are pressed to drive the sliding sleeve 33 to move downward, and then because the lower end of the fixed sleeve 32 is getting narrower, the three steel balls 34 Approach each other, thereby clamping and fixing the hanging rope 43 in the middle, so that the hanging rope 43 is fixed in the sliding sleeve 33, thereby preventing the lifted heavy objects from suddenly falling and causing safety accidents below, improving the protection ability of the device, and improving safety performance.

The basic principles, main features and advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model can be There will also be various changes and improvements in the new model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims (6)

1. An auxiliary lifting device, including a base plate (1), a moving mechanism (2) for adjusting the lifting position of a tower crane, and a lifting mechanism (4) for lifting objects. The moving mechanism (2) Located above the bottom plate (1), the lifting mechanism (4) is located below the moving mechanism (2). It is characterized in that it also includes a locking mechanism (3) for preventing objects from falling. The mechanism (3) is located between the lifting mechanisms (4); The locking mechanism (3) includes a fixed cover (31), which is arranged between the lifting mechanism (4), and an electromagnet (37) is installed on the upper end of the fixed cover (31). The fixed sleeve (32) is installed inside the fixed cover (31), and the sliding sleeve (33) is installed inside the fixed sleeve (32). The bottom end of the sliding sleeve (33) is surrounded by three steel balls (34). A sliding plate (35) is provided at the upper end of the steel ball (34), and a spring (36) is connected between the sliding plate (35) and the fixed cover (31). 2. An auxiliary lifting device according to claim 1, characterized in that: the steel ball (34) and the sliding sleeve (33) are rotationally connected, and the steel ball (34) and the sliding sleeve (33) All are slidingly connected with the fixed sleeve (32). 3. An auxiliary lifting device according to claim 1, characterized in that: the sliding plate (35) is slidingly connected to the sliding sleeve (33), the fixed cover (31), the fixed sleeve ( 32). The sliding sleeve (33) is made of aluminum. 4. An auxiliary lifting device according to claim 1, characterized in that: the lifting mechanism (4) includes a third motor (41), and the third motor (41) is installed on the moving mechanism (2). ) in front, a rewinding roller (42) is arranged above the fixed cover (31), a hanging rope (43) is wound on the surface of the rewinding roller (42), and a hanging hook (44) is installed on the hanging rope (44) 43) Lower end. 5. An auxiliary lifting device according to claim 4, characterized in that: the moving mechanism (2) includes a sliding frame (27), and the sliding frame (27) is arranged on the winding roller (42) On the outside, a slide rail (23) is provided above the sliding frame (27). A threaded rod (25) is rotatably installed inside the slide rail (23). A first motor (25) is provided on one side of the slide rail (23). 24), a rotating rod (22) is fixedly installed below the slide rail (23). 6. An auxiliary lifting device according to claim 5, characterized in that: the sliding frame (27) is slidingly connected to the sliding rail (23), and the threaded rod (25) is connected to the sliding frame (27). 27) Threaded connection, the rotating rod (22) and the slide rail (23) are connected with connecting plates on both front and rear sides.