Single-beam crane with adjusting structure

Abstract

The utility model discloses a single-beam crane with an adjusting structure, which comprises a supporting base, a supporting column is fixed at the top of the supporting base, a through groove is formed in the supporting base, and an area expanding mechanism is arranged in the through groove. According to the single-beam crane, the two movable plates can move away from each other, the two movable plates can drive the two supporting plates to move away from each other at the same time, the supporting plates can move downwards to make contact with the ground by rotating a handle, the occupied area of the bottom of the single-beam crane is increased, and the stability of the single-beam crane is improved; the single-beam crane is prevented from toppling and moving along with the rolling wheels, it is guaranteed that the single-beam crane does not move when working, and the safety of the single-beam crane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of single-beam cranes, in particular to a single-beam crane with an adjustment structure. Background Art

[0002] Single-beam crane is an important tool and equipment for realizing mechanization and automation of production process in modern industrial production and lifting transportation.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN216662260U discloses an electric single-beam crane with auxiliary functions, which belongs to the technical field of single-beam cranes. The technical points include a crane body and a pulley, the top of the pulley is installed on the crane body, the pulley is provided with an adjustment structure, the crane body is provided with a limit structure, and the adjustment structure is sleeved on the limit structure. In this utility model, when lifting goods, the limit rod will limit the fixed plate, thereby preventing the fixed plate from shaking back and forth, and the anti-deviation structure can be set to prevent the pulley from shaking left and right when the pulley stops moving, thereby reducing the back-and-forth pendulum motion of the pulley, reducing the shaking of the goods, facilitating the user to dock, and reducing the wear of the sling, thereby increasing the service life of the device.

[0004] The above-mentioned authorized patent has the following problems during use:

[0005] The single-beam crane has a small bottom support area, resulting in poor overall stability. During use, it is easy to tip over, resulting in low safety of the single-beam crane.

[0006] In view of this, there is an urgent need for a single-beam crane with an adjustable structure that can solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a single-beam crane with an adjustment structure to solve the problems raised by the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-beam crane with an adjustment structure, comprising a support base, a support column is fixed on the top of the support base, a through groove is opened inside the support base, and an area expansion mechanism is arranged inside the through groove;

[0009] The area enlargement mechanism includes a first fixed plate, a first fixed plate is fixed inside the through slot, a first rotating shaft is rotatably installed between the first fixed plates, an end of the first rotating shaft is located inside the movable plate, an end of the movable plate passes through the through slot and an anti-slip mechanism is arranged inside, an outer wall of the first rotating shaft is located between the first fixed plates and a first bevel gear is fixed, a second fixed plate is fixed between the first fixed plates, a second rotating shaft is rotatably installed between the second fixed plate and the supporting base, a second bevel gear is fixed at one end of the second rotating shaft, the second bevel gear is meshingly connected with the first bevel gear, and the other end of the second rotating shaft is located outside the supporting base and a crank is fixed thereon;

[0010] The anti-slip mechanism includes a screw rod, the end of the movable plate is penetrated by the screw rod, the lower end of the screw rod is rotatably mounted with a support plate, the top of the support plate is fixed with a guide rod, the upper end of the guide rod penetrates the interior of the movable plate, and the upper end of the screw rod is fixed with a handle.

[0011] Preferably, an anti-slip mechanism is provided at the bottom of the movable plate, and the anti-slip mechanism includes an anti-slip block. An anti-slip block is fixed to one side of the bottom of the movable plate, and the lower end of the anti-slip block is slidably installed inside the anti-slip groove, and the anti-slip groove is opened at the bottom of the through groove.

[0012] Preferably, the movable plate and the through slot form a snap-fit ​​sliding structure, the movable plate is threadedly connected to the first rotating shaft, opposite threads are provided at both ends of the first rotating shaft, and there are two movable plates symmetrically distributed about the central axis of the first rotating shaft.

[0013] Preferably, the screw rod and the movable plate are threadedly connected, and the guide rod and the movable plate are slidably connected.

[0014] Preferably, rollers are installed at the bottom of the support base.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the single-beam crane with an adjustment structure can make the two movable plates move away from each other by rotating the second rotating shaft through the crank, and the two movable plates can simultaneously drive the two support plates to move away from each other, and by rotating the handle, the support plates can move downward and contact the ground, thereby increasing the floor space of the bottom of the single-beam crane, improving the stability of the single-beam crane, preventing the single-beam crane from tipping over, and preventing the single-beam crane from moving with the rollers, thereby ensuring that the single-beam crane will not move during operation, and improving the safety of the single-beam crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 2This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0018] Figure 3 This is a schematic diagram of the installation structure of the screw rod in a side view section of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the installation structure of the anti-dropping block in side view.

[0020] In the figure: 1. support base; 2. support column; 3. roller; 4. through groove; 5. first fixed plate; 6. first rotating shaft; 7. movable plate; 8. first bevel gear; 9. second fixed plate; 10. second rotating shaft; 11. second bevel gear; 12. crank; 13. screw rod; 14. support plate; 15. handle; 16. guide rod; 17. anti-slip block; 18. anti-slip groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a single-beam crane with an adjustment structure, comprising a support base 1, a support column 2 is fixed on the top of the support base 1, a through groove 4 is opened inside the support base 1, and an area expansion mechanism is arranged inside the through groove 4;

[0023] The area enlargement mechanism comprises a first fixed plate 5, the first fixed plate 5 is fixed inside the through slot 4, a first rotating shaft 6 is rotatably installed between the first fixed plates 5, the end of the first rotating shaft 6 is located inside the movable plate 7, the end of the movable plate 7 passes through the through slot 4 and is provided with an anti-slip mechanism, the outer wall of the first rotating shaft 6 is located between the first fixed plates 5 and a first bevel gear 8 is fixed, a second fixed plate 9 is fixed between the first fixed plates 5, a second rotating shaft 10 is rotatably installed between the second fixed plate 9 and the support base 1, a second bevel gear 11 is fixed at one end of the second rotating shaft 10, the second bevel gear 11 is meshingly connected with the first bevel gear 8, and the other end of the second rotating shaft 10 is located outside the support base 1 and a crank 12 is fixed thereto;

[0024] The anti-slip mechanism includes a screw rod 13, the end of the movable plate 7 is penetrated by the screw rod 13, the lower end of the screw rod 13 is rotatably mounted with a support plate 14, the top of the support plate 14 is fixed with a guide rod 16, the upper end of the guide rod 16 penetrates the interior of the movable plate 7, and the upper end of the screw rod 13 is fixed with a handle 15.

[0025] An anti-slip mechanism is provided at the bottom of the movable plate 7, and the anti-slip mechanism includes an anti-slip block 17. The anti-slip block 17 is fixed to one side of the bottom of the movable plate 7. The lower end of the anti-slip block 17 is slidably installed inside the anti-slip groove 18. The anti-slip groove 18 is opened at the bottom of the through groove 4. Under the action of the anti-slip block 17 and the anti-slip groove 18, the movable plate 7 is prevented from separating from the through groove 4.

[0026] The movable plate 7 and the through slot 4 form a snap-fit ​​sliding structure, the movable plate 7 is threadedly connected to the first rotating shaft 6, opposite threads are provided at both ends of the first rotating shaft 6, and there are two movable plates 7 symmetrically distributed about the central axis of the first rotating shaft 6, ensuring that when the first rotating shaft 6 rotates forward or reversely, the two movable plates 7 can move towards or away from each other.

[0027] The screw rod 13 and the movable plate 7 are threadedly connected, and the guide rod 16 and the movable plate 7 are slidably connected. By rotating the screw rod 13 forward or reversely, the support plate 14 can move upward or downward.

[0028] A roller 3 is installed at the bottom of the support base 1, and the roller 3 facilitates the movement of the single-beam crane.

[0029] Working principle: The single-beam crane is moved to the working position by the roller 3. When the bottom area of ​​the single-beam crane needs to be enlarged to increase the stability of the single-beam crane, the second rotating shaft 10 is rotated by the crank 12, and then the second rotating shaft 10 drives the first rotating shaft 6 to rotate through the second bevel gear 11 and the first bevel gear 8. Since the movable plate 7 and the through groove 4 form a snap-fit ​​sliding structure, and the movable plate 7 is threadedly connected to the first rotating shaft 6, and opposite threads are arranged at both ends of the first rotating shaft 6, and there are two movable plates 7 symmetrically distributed about the central axis of the first rotating shaft 6, the two movable plates 7 are mutually The two support plates 14 move away from each other, and then the screw rod 13 is rotated by the handle 15. Since the screw rod 13 and the movable plate 7 are threadedly connected, and the guide rod 16 and the movable plate 7 are slidingly connected, and the support plate 14 is rotatably installed on the lower end of the screw rod 13, the support plate 14 moves downward and contacts the ground, thereby increasing the floor space of the bottom of the single-beam crane, improving the stability of the single-beam crane, preventing the single-beam crane from tipping over, and preventing the single-beam crane from moving with the roller 3, ensuring that the single-beam crane will not move during operation, and improving the safety of the single-beam crane.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A single-beam crane with an adjustment structure, comprising a support base (1), a support column (2) being fixed to the top of the support base (1), characterized in that: A through slot (4) is provided inside the support base (1), and an area enlarging mechanism is provided inside the through slot (4); The area enlargement mechanism comprises a first fixed plate (5), the first fixed plate (5) is fixed inside the through groove (4), a first rotating shaft (6) is rotatably mounted between the first fixed plates (5), an end of the first rotating shaft (6) is located inside the movable plate (7), the end of the movable plate (7) passes through the through groove (4) and is provided with an anti-slip mechanism, the outer wall of the first rotating shaft (6) is located between the first fixed plates (5) and a first bevel gear (8) is fixed thereon, a second fixed plate (9) is fixed between the first fixed plates (5), a second rotating shaft (10) is rotatably mounted between the second fixed plate (9) and the support base (1), a second bevel gear (11) is fixed to one end of the second rotating shaft (10), the second bevel gear (11) is meshingly connected to the first bevel gear (8), and the other end of the second rotating shaft (10) is located outside the support base (1) and a crank (12) is fixed thereon; The anti-slip mechanism comprises a screw rod (13), the end of the movable plate (7) is penetrated by the screw rod (13), the lower end of the screw rod (13) is rotatably mounted with a support plate (14), the top of the support plate (14) is fixed with a guide rod (16), the upper end of the guide rod (16) penetrates the interior of the movable plate (7), and the upper end of the screw rod (13) is fixed with a handle (15).

2. The single-beam crane with an adjustment structure according to claim 1, characterized in that: The bottom of the movable plate (7) is provided with an anti-slip mechanism, the anti-slip mechanism comprising an anti-slip block (17), one side of the bottom of the movable plate (7) is fixed with the anti-slip block (17), the lower end of the anti-slip block (17) is slidably mounted inside an anti-slip groove (18), and the anti-slip groove (18) is opened at the bottom of the through groove (4).

3. The single-beam crane with an adjustment structure according to claim 1, characterized in that: The movable plate (7) and the through slot (4) form a snap-fitting sliding structure. The movable plate (7) is threadedly connected to the first rotating shaft (6). Opposite threads are provided at both ends of the first rotating shaft (6). Two movable plates (7) are symmetrically distributed about the central axis of the first rotating shaft (6).

4. The single-beam crane with an adjustment structure according to claim 1, characterized in that: The screw rod (13) and the movable plate (7) are threadedly connected, and the guide rod (16) and the movable plate (7) are slidably connected.

5. The single-beam crane with an adjustment structure according to claim 1, characterized in that: A roller (3) is installed at the bottom of the support base (1).

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