Inverted electric chain hoist

Abstract

The utility model relates to the field of hoisting equipment, and discloses an upside-down electric chain hoist which comprises a protective shell, the outer wall of the protective shell is rotatably connected with a rocking handle, the outer wall of the rocking handle is fixedly connected with a positive and negative screw column, the outer wall of the positive and negative screw column is rotatably connected to the interior of the protective shell, and the outer wall of the positive and negative screw column is in threaded connection with a moving block. And guide columns are fixedly connected to the outer walls of the moving blocks, rolling wheels are rotatably connected to the inner walls of the guide columns, the outer walls of the rolling wheels are slidably connected to the inner wall of the protective shell, and connecting rods are fixedly connected to the lower surfaces of the moving blocks. According to the utility model, the rocking handle is clenched to rotate, the rocking handle drives the moving block to relatively move through the positive and negative screw columns, then the moving block drives the movable plate to rotate through the connecting rod, the movable plate pulls the transmission column through the fixed column, and the transmission column rotates through the limiting ring, so that the rotation angle of the lifting hook is adjusted, and different lifting requirements are met; and the operation flexibility and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, in particular to an inverted chain electric hoist. Background Art

[0002] The inverted chain electric hoist is a lifting equipment commonly used in industry and construction. It is usually driven by an electric motor and lifts and lowers heavy objects through a chain and gear system. Using chains and hooks to lift goods or materials can bring higher safety and stability because it evenly distributes the weight of the heavy object on the chain, reducing the pressure on the hook and thus reducing the risk of accidents. The inverted chain electric hoist is usually used in lifting operations that require efficiency and reliability, such as factory production lines, warehouse cargo handling and other scenes, but the rotation angle of the hook cannot be adjusted. The operator may be restricted by the fixed position of the hook during lifting operations, so an inverted chain electric hoist is proposed.

[0003] However, most electric hoists currently cannot flexibly adjust the angle of the hook, which limits the choice of lifting methods, resulting in a limited operating range and reduced operating efficiency and operational flexibility. Utility Model Content

[0004] In order to remedy the above shortcomings, the utility model provides an inverted chain electric hoist, which aims to improve the problem that the angle of the hook cannot be flexibly adjusted, which limits the choice of lifting methods, resulting in a limited operating range and reduced operating efficiency and operational flexibility.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An inverted chain electric hoist comprises a protective shell, the outer wall of the protective shell is rotatably connected to a crank, the outer wall of the crank handle is fixedly connected to positive and negative wire columns, the outer walls of the positive and negative wire columns are rotatably connected to the inside of the protective shell, the outer walls of the positive and negative wire columns are threadedly connected to a moving block, the outer wall of the moving block is fixedly connected to a guide column, the inner wall of the guide column is rotatably connected to a roller, the outer wall of the roller is slidably connected to the inner wall of the protective shell, the lower surface of the moving block is fixedly connected to a connecting rod, the outer wall of the connecting rod is rotatably connected to a movable plate, the inside of the movable plate is rotatably connected to a fixed column, the bottom end of the fixed column is fixedly connected to a transmission column, the outer wall of the transmission column is fixedly connected to a limiting ring, the outer wall of the limiting ring is rotatably connected to the inside of the protective shell, and a lifting assembly is provided on the upper surface of the protective shell.

[0007] Preferably, the lifting assembly includes a fixed frame, the lower surface of the fixed frame is fixedly connected to the upper surface of the protective shell, the outer wall of the fixed frame is fixedly connected to a reduction motor, and the output end of the reduction motor is fixedly connected to a chain.

[0008] Preferably, a mounting cavity is provided inside the transmission column, and a sliding column is slidably connected inside the transmission column.

[0009] Preferably, a clamping block is fixedly connected to the outer wall of the sliding column, and the outer wall of the clamping block is slidably connected to the inner wall of the transmission column.

[0010] Preferably, a spring is fixedly connected to the outer wall of the block, and the outer wall of the spring is fixedly connected to the inner wall of the transmission column.

[0011] Preferably, a movable column is provided on the outer wall of the block, a top end of the movable column is fixedly connected to a top plate, an outer wall of the top plate is provided on the outer wall of the block, and the outer wall of the top plate is provided on the inner wall of the installation cavity.

[0012] Preferably, the outer wall of the movable column is slidably connected to an upper plate, the outer wall of the upper plate is arranged on the outer wall of the block, the outer wall of the movable column is slidably connected to a lower plate, the outer wall of the lower plate is arranged on the outer wall of the block, and the upper surface of the lower plate is fixedly connected to the lower surface of the upper plate.

[0013] Preferably, a support block is fixedly connected to the bottom end of the movable column, and a hook is rotatably connected to the inner wall of the support block.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the crank handle is held tightly and rotated, and the crank handle drives the positive and negative wires to rotate. The positive and negative wire columns drive the moving blocks at both ends to move relative to each other through threaded connections, and then the moving blocks drive the rollers to slide on the inner wall of the protective shell through the guide columns, and the connecting rod drives the movable plate to rotate, and the movable plate pulls the transmission column through the fixed column, and then the transmission column rotates through the limit ring, so as to adjust the rotation angle of the hook, better adapt to different lifting requirements, and improve the flexibility and efficiency of operation.

[0016] 2. In the utility model, the support block is moved upward, and the support block drives the outer wall of the upper plate to move upward through the movable column until it slides over the outer wall of the clamping block. Then the support block is pulled downward, and the clamping block drives the lower plate to slide upward to disassemble the hook. The top plate is aligned with the installation cavity and pushed upward until the outer wall of the top plate slides over the clamping block. Then the spring rebounds and pushes the clamping block to fit into the groove on the lower surface of the top plate. The hook can be fixed and installed, thereby achieving the effect of replacing hooks of different types or specifications, thereby improving its versatility and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an inverted chain electric hoist proposed by the utility model;

[0018] Figure 2A schematic diagram of a movable plate of an inverted chain electric hoist proposed by the utility model;

[0019] Figure 3 This is a cross-sectional view of a protective shell of an inverted chain electric hoist proposed by the utility model;

[0020] Figure 4 The utility model provides an internal schematic diagram of a transmission column of an inverted chain electric hoist.

[0021] Legend:

[0022] 1. Protective shell; 2. Crank handle; 3. Positive and negative screw columns; 4. Moving block; 5. Guide column; 6. Roller; 7. Connecting rod; 8. Movable plate; 9. Fixed column; 10. Transmission column; 11. Limiting ring; 12. Fixed frame; 13. Reducer motor; 14. Chain; 15. Installation cavity; 16. Sliding column; 17. Block; 18. Spring; 19. Movable column; 20. Top plate; 21. Upper plate; 22. Lower plate; 23. Support block; 24. Hook. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the specification of this 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 of 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.

[0024] Reference Figure 1-Figure 3 The utility model provides an embodiment: an inverted chain electric hoist, comprising a protective shell 1, the outer wall of the protective shell 1 is rotatably connected with a crank 2, the outer wall of the crank 2 is fixedly connected with a positive and negative wire column 3, the outer wall of the positive and negative wire column 3 is rotatably connected to the inside of the protective shell 1, the outer wall of the positive and negative wire column 3 is threadedly connected with a moving block 4, the outer wall of the moving block 4 is fixedly connected with a guide column 5, the inner wall of the guide column 5 is rotatably connected with a roller 6, the outer wall of the roller 6 is slidably connected to the inner wall of the protective shell 1, the lower surface of the moving block 4 is fixedly connected with a connecting rod 7, the connecting rod 7 The outer wall of the movable plate 8 is rotatably connected to the movable plate 8, the inner part of the movable plate 8 is rotatably connected to the fixed column 9, the bottom end of the fixed column 9 is fixedly connected to the transmission column 10, the outer wall of the transmission column 10 is fixedly connected to the limiting ring 11, the outer wall of the limiting ring 11 is rotatably connected to the inside of the protective shell 1, and the upper surface of the protective shell 1 is provided with a lifting assembly; the lifting assembly includes a fixed frame 12, the lower surface of the fixed frame 12 is fixedly connected to the upper surface of the protective shell 1, the outer wall of the fixed frame 12 is fixedly connected to the reduction motor 13, and the output end of the reduction motor 13 is fixedly connected to the chain 14;

[0025] Specifically, the protective shell 1 can support the position of the crank handle 2, and when the crank handle 2 is turned, the crank handle 2 can drive the positive and negative wire columns 3 to rotate inside the protective shell 1. When the positive and negative wire columns 3 rotate, the moving blocks 4 at both ends can be driven to move relative to each other through threaded connections, and then the moving block 4 can drive the roller 6 to slide on the inner wall of the protective shell 1 through the guide column 5, thereby ensuring the stability and smoothness of the moving block 4 when moving, and the moving block 4 can drive the movable plate 8 to rotate through the connecting rod 7, and the movable plate 8 can pull the transmission column 10 through the fixed column 9, and then the transmission column 10 can rotate inside the protective shell 1 through the limit ring 11, and the limit ring 11 can ensure that the transmission column 10 will not fall off inside the protective shell 1, thereby ensuring its stability during rotation, and the protective shell 1 has a fixed support function for the fixed frame 12, and the fixed frame 12 can fix the position of the reduction motor 13 to ensure the stability of the reduction motor 13 during operation, and the reduction motor 13 can adjust the lifting speed of the chain 14 hanging upside down.

[0026] Reference Figure 1 and Figure 4 The transmission column 10 has an installation cavity 15 formed inside, and a sliding column 16 is slidably connected inside the transmission column 10; a clamping block 17 is fixedly connected to the outer wall of the sliding column 16, and the outer wall of the clamping block 17 is slidably connected to the inner wall of the transmission column 10;

[0027] Specifically, the transmission column 10 can slide inside the sliding column 16 , and the sliding column 16 has a fixed support function for the block 17 , and can also ensure the stability of the sliding path of the block 17 .

[0028] Reference Figure 4 The outer wall of the block 17 is fixedly connected with a spring 18, and the outer wall of the spring 18 is fixedly connected to the inner wall of the transmission column 10; the outer wall of the block 17 is provided with a movable column 19, and the top of the movable column 19 is fixedly connected with a top plate 20, and the outer wall of the top plate 20 is arranged on the outer wall of the block 17, and the outer wall of the top plate 20 is arranged on the inner wall of the installation cavity 15; the outer wall of the movable column 19 is slidably connected with an upper plate 21, and the outer wall of the upper plate 21 is arranged on the outer wall of the block 17, and the outer wall of the movable column 19 is slidably connected with a lower plate 22, and the outer wall of the lower plate 22 is arranged on the outer wall of the block 17, and the upper surface of the lower plate 22 is fixedly connected to the lower surface of the upper plate 21. The bottom end of the movable column 19 is fixedly connected with a support block 23, and the inner wall of the support block 23 is rotatably connected with a hook 24;

[0029] Specifically, the transmission column 10 has a fixing effect on the spring 18, and the spring 18 can push the block 17 to slide, and the movable column 19 has a fixing and supporting effect on the top plate 20. When the top plate 20 is arranged on the inner wall of the installation cavity 15, when the block 17 moves on the outer wall of the movable column 19 and slides to the groove on the lower surface of the top plate 20, the block 17 can fix the movable column 19, and the top plate 20 is aligned with the installation cavity 15 and pushed upward until the outer wall of the top plate 20 slides over the outer wall of the block 17, and then the spring 18 rebounds, which can push the block 17 to slide to the lower surface of the top plate 20 and fit with the groove on the lower surface of the top plate 20, so that the hook 24 can be fixed and installed, and the movable column 19 has a fixing and supporting effect on the support block 23, and the support block 23 can support the position of the hook 24, and the hook 24 can rotate on the inner wall of the support block 23, so that the hook 24 can be better precisely controlled, and the hook 24 can be rotated through the transmission column 10 to adjust the suspension angle.

[0030] Working principle: when this device is needed, the technician can turn on the reduction motor 13 fixed by the outer wall of the fixed frame 12, and the reduction motor 13 can adjust the hook 24 to a suitable working position through the chain 14. When the rotation angle of the hook 24 needs to be adjusted, hold the crank handle 2 tightly and rotate it. The crank handle 2 can drive the positive and negative wire columns 3 to rotate inside the protective shell 1. When the positive and negative wire columns 3 rotate, the moving blocks 4 at both ends can be driven to move relative to each other through the threaded connection, and then the moving block 4 can drive the roller 6 to slide on the inner wall of the protective shell 1 through the guide column 5 to ensure the stability of the moving block 4 when moving, and the moving block 4 can drive the movable plate 8 to rotate through the connecting rod 7, and the movable plate 8 can pull the transmission column 10 through the fixed column 9, and then the transmission column 10 can rotate inside the protective shell 1 through the limit ring 11, so that the rotation angle of the hook 24 can be adjusted to adapt to different working scenes. When the hook 24 needs to be replaced and disassembled, the support block 23 is moved upward, and the support block 23 can be moved through the movable column The support block 23 is then pulled downward, and the outer wall of the block 17 can drive the lower plate 22 to slide upward on the outer wall of the movable column 19. After the upper plate 21 is fitted with the lower surface of the top plate 20, the block 17 can slide out through the outer wall of the lower plate 22 until it is separated from the outer wall of the top plate 20, and then the hook 24 can be disassembled. When installing the hook 24, the top plate 20 is aligned with the installation cavity 15 and pushed upward until the outer wall of the top plate 20 slides out. After passing through the outer wall of the block 17, the spring 18 rebounds and can push the block 17 to slide to the lower surface of the top plate 20 and fit into the groove on the lower surface of the top plate 20, so that the hook 24 can be fixedly installed. That is, the device can not only adjust the rotation angle of the hook 24 to better adapt to different lifting requirements and improve the flexibility and efficiency of operation, but also replace the hook 24 of different types or specifications to adapt to different working environments or cargo types, thereby improving its versatility and applicability.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. An inverted chain electric hoist, comprising a protective shell (1), characterized in that: The outer wall of the protective shell (1) is rotatably connected to a crank handle (2), the outer wall of the crank handle (2) is fixedly connected to a positive and negative thread column (3), the outer wall of the positive and negative thread column (3) is rotatably connected to the inside of the protective shell (1), the outer wall of the positive and negative thread column (3) is threadedly connected to a moving block (4), the outer wall of the moving block (4) is fixedly connected to a guide column (5), the inner wall of the guide column (5) is rotatably connected to a roller (6), and the outer wall of the roller (6) is slidably connected to the inner wall of the protective shell (1). The lower surface of the moving block (4) is fixedly connected to a connecting rod (7), the outer wall of the connecting rod (7) is rotatably connected to a movable plate (8), the interior of the movable plate (8) is rotatably connected to a fixed column (9), the bottom end of the fixed column (9) is fixedly connected to a transmission column (10), the outer wall of the transmission column (10) is fixedly connected to a limiting ring (11), the outer wall of the limiting ring (11) is rotatably connected to the interior of the protective shell (1), and a lifting assembly is provided on the upper surface of the protective shell (1).

2. The inverted chain electric hoist according to claim 1, characterized in that: The lifting assembly comprises a fixed frame (12), the lower surface of the fixed frame (12) is fixedly connected to the upper surface of the protective shell (1), the outer wall of the fixed frame (12) is fixedly connected to a reduction motor (13), and the output end of the reduction motor (13) is fixedly connected to a chain (14).

3. The inverted chain electric hoist according to claim 1, characterized in that: An installation cavity (15) is provided inside the transmission column (10), and a sliding column (16) is slidably connected inside the transmission column (10).

4. The inverted chain electric hoist according to claim 3, characterized in that: The outer wall of the sliding column (16) is fixedly connected with a clamping block (17), and the outer wall of the clamping block (17) is slidably connected to the inner wall of the transmission column (10).

5. The inverted chain electric hoist according to claim 4, characterized in that: The outer wall of the clamping block (17) is fixedly connected to a spring (18), and the outer wall of the spring (18) is fixedly connected to the inner wall of the transmission column (10).

6. The inverted chain electric hoist according to claim 5, characterized in that: The outer wall of the block (17) is provided with a movable column (19), the top end of the movable column (19) is fixedly connected with a top plate (20), the outer wall of the top plate (20) is arranged on the outer wall of the block (17), and the outer wall of the top plate (20) is arranged on the inner wall of the installation cavity (15).

7. The inverted chain electric hoist according to claim 6, characterized in that: The outer wall of the movable column (19) is slidably connected to an upper plate (21), and the outer wall of the upper plate (21) is arranged on the outer wall of the block (17). The outer wall of the movable column (19) is slidably connected to a lower plate (22), and the outer wall of the lower plate (22) is arranged on the outer wall of the block (17). The upper surface of the lower plate (22) is fixedly connected to the lower surface of the upper plate (21).

8. The inverted chain electric hoist according to claim 7, characterized in that: The bottom end of the movable column (19) is fixedly connected to a support block (23), and the inner wall of the support block (23) is rotatably connected to a hook (24).

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