A steel structure hoisting device for a hoisting machine in a confined space

Abstract

The present invention relates to the technical field of hoisting, and discloses a steel structure hoisting device for a hoisting machine in a confined space, including a support frame. Avoidance openings are provided at both the top and the bottom of the support frame. A support mechanism and an adjustment mechanism are provided on one side of the support frame. The support mechanism is used to support and stabilize the support frame, and the adjustment mechanism is arranged below the support mechanism. The adjustment mechanism is used to adjust the inclination of the device. A transmission mechanism is arranged on the support frame. The transmission mechanism includes a boom. A driving gear is arranged on one side of the boom. A direction-changing gear is arranged on one side of the driving gear. A toothed plate is arranged on one side of the direction-changing gear. A hoisting mechanism is arranged at the top of the boom. By pressing the boom, the boom, the support cross plate and the support vertical plate can be simultaneously close to the support frame to complete the storage. Compared with the comparative document, the storage effect is good, and the occupied space is further reduced, which is more convenient for storage and carrying.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting, and specifically to a steel structure hoisting device for a hoisting machine in a confined space. Background Art

[0002] Hoisting refers to the general term for the installation and positioning of equipment by a crane or a hoisting mechanism. Hoisting is a specific term for equipment positioning, and generally requires the cooperation of a lifting tool (or sling). The lifting tool is manufactured by a professional manufacturer. Professional websites that introduce hoisting technology, especially the hoisting technology using a crane, such as the Crane Hoisting Technology Home, etc., so a hoisting device will be used during equipment installation.

[0003] Chinese Patent CN202122376825.1 discloses a hoisting device for a confined space, including a base and a protective box arranged at its upper end. A vertical column is vertically arranged at the upper end of the protective box. A cross arm is rotatably arranged at one side of the upper end of the column. A strut is rotatably arranged at the lower end of the cross arm. A number of positioning notches for the lower end of the strut to be stuck are formed on the surface of the column close to the cross arm, so that the cross arm can be folded when not in use, reducing the occupied space. A traction channel is arranged inside the column, and a traction rope is arranged in the traction channel. The traction rope bypasses a first fixed pulley arranged at the top of the column, a second fixed pulley at the end of the cross arm, and a through hole arranged on the cross arm. The present invention is designed in view of the existing situation, facilitating the folding and storage of the hoisting structure, enabling it to be used in a narrow space, and also being able to switch to a larger support surface, effectively ensuring the working stability. When the device is being stored, the cross plate can be folded, but the storage effect is average. Moreover, the device is difficult to work on a slope, and adjustment is required to improve the stability of the device, making the operation troublesome. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a steel structure hoisting device for a hoisting machine in a confined space, which has the advantages of good storage effect, applicability to slopes, simple operation, etc., and solves the problems of average storage effect, difficulty in working on slopes, and the need to adjust the contact surface to improve the stability of the device, with troublesome operation.

[0005] To solve the technical problems of general storage effect, difficulty in working on slopes, and the need to adjust the contact surface to improve the stability of the device, which is troublesome to operate, the present invention provides the following technical solutions: A steel structure hoisting device for a hoisting machine in a limited space, including a support frame. Avoidance openings are provided at both the top and bottom of the support frame. A support mechanism and an adjustment mechanism are provided on one side of the support frame. The support mechanism is used to support and stabilize the support frame, and the adjustment mechanism is arranged below the support mechanism. The adjustment mechanism is used to adjust the inclination of the device. A transmission mechanism is provided on the support frame. The transmission mechanism includes a boom. A driving gear is provided on one side of the boom. A direction-changing gear is provided on one side of the driving gear. A toothed plate is provided on one side of the direction-changing gear. When storing, press down the boom. While the boom moves downward, it drives the driving gear to rotate, thereby driving the direction-changing gear to rotate. The direction-changing gear drives the support mechanism and the adjustment mechanism to move closer to the support frame simultaneously through the toothed plate. A hoisting mechanism is provided at the top of the boom. The hoisting mechanism is used to lift objects.

[0006] Preferably, the support mechanism includes a fixed shaft and a stabilizing mechanism. The fixed shaft is fixedly installed on one side of the support frame. A driven gear is rotatably fitted on the fixed shaft. The driven gear is fixedly installed with a support cross plate, and the driven gear meshes with the toothed plate. A first bevel gear is fixedly sleeved on the fixed shaft. When pressing the boom to drive the toothed plate to move, the toothed plate drives the support cross plate to move closer to the support frame through the driven gear.

[0007] Preferably, the stabilizing mechanism includes a first through opening. A rotating shaft is rotatably fitted on the inner wall of the top of the first through opening. The bottom end of the rotating shaft extends below the support cross plate. A support vertical plate is fixedly installed at the bottom end of the rotating shaft. A worm gear is fixedly sleeved on the rotating shaft. The worm gear is arranged in the first through opening. A worm is rotatably fitted on one side of the support cross plate. The worm meshes with the worm gear. A second bevel gear is fixedly sleeved on one end of the worm. The second bevel gear meshes with the first bevel gear. During the movement of the support cross plate, it drives the worm, the worm gear, the second bevel gear, and the support vertical plate to move simultaneously. While the second bevel gear moves, it rolls on the first bevel gear to drive the worm to drive the worm gear to rotate, and the worm gear drives the vertical plate to move.

[0008] Preferably, the adjusting mechanism includes a second through port. A threaded rod is rotatably fitted to the inner wall on one side of the second through port, and one end of the threaded rod extends outside the supporting vertical plate and is provided with a hexagonal groove. A slider is threadedly fitted to the threaded rod, and the slider is slidably fitted to the inner walls on both sides of the second through port. The bottom of the slider is hingedly installed with a hinge rod, the bottom of the supporting vertical plate is hingedly installed with an adjusting plate, and the adjusting plate is hingedly connected to the hinge rod; by rotating the threaded rod, the threaded rod drives the hinge rod through the slider to lift the adjusting plate.

[0009] Preferably, a third through port is provided on the outer wall of one side of the support frame. The reversing gear is arranged in the third through port. The reversing gear meshes with the driving gear, and the driving gear is arranged on one side of the support frame. The reversing gear meshes with the toothed plate, and the toothed plate is arranged in the support frame. The top end of the toothed plate penetrates through the corresponding avoidance port and extends above the support frame, and the toothed plate is slidably fitted to the inner wall on one side of the support frame.

[0010] Preferably, a first limiting hole is provided on the support frame, a second limiting hole is provided on the toothed plate, and a pin is arranged in the first limiting hole and the second limiting hole.

[0011] Preferably, the hoisting mechanism includes a U-shaped frame. Rotating rollers are rotatably fitted to the inner walls on both sides of the U-shaped frame. A driving motor is arranged on one side of the U-shaped frame, and the output shaft of the driving motor is fixedly connected to the rotating roller.

[0012] Preferably, a steel cable is arranged on the rotating roller. A fixed pulley is arranged at one end of the boom. The steel cable passes through the fixed pulley, and a hook is arranged at one end of the steel cable.

[0013] Compared with the prior art, the present invention provides a steel structure hoisting device for a hoisting machine in a limited space, and has the following beneficial effects:

[0014] The worm gear, the worm wheel, the second bevel gear, the second bevel gear and the adjusting plate are moved together to move toward the support frame, and the worm gear drives the worm wheel to rotate, and the worm wheel drives the rotating shaft to rotate, and the rotating shaft drives the supporting vertical plate to approach the supporting horizontal plate for storage, and the supporting vertical plate drives the threaded rod, the sliding block, the hinged rod and the adjusting plate to be stored together during the storage process. The device can make the supporting arm, the supporting horizontal plate and the supporting vertical plate close to the supporting frame for storage by pressing the supporting arm. Compared with the comparative file storage, the storage effect is good, and the occupied space is further reduced, which is more convenient for storage and carrying.

[0015] 2. When the steel structure hoisting device for hoisting machinery in a confined space is hoisted on a slope, the threaded rod is rotated to drive the slider to move, and the slider drives the articulated rod to move. The articulated rod props up the adjustment plate to a certain angle to change the center of gravity position during hoisting. Since hoisting on a slope will cause the center of gravity to shift, traditional hoisting devices are difficult to hoist on a slope. Therefore, the present device can be applied to slopes of different angles, thereby improving the scope of application of the present hoisting device.

[0016] 3. The steel structure hoisting device for the hoisting machinery in a confined space has a more reasonable structure and its center of gravity is moved forward compared with the comparative document, making the device more stable when hoisting, lighter in size and more stable in center of gravity, and no need to adjust the contact surface, making it easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the overall three-dimensional structural schematic diagrams of the present invention;

[0018] Figure 2 This is the second schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 3 For the present invention Figure 1 A schematic diagram of the structure of the local enlargement of the A;

[0020] Figure 4 For the present invention Figure 1 A schematic diagram of the structure of the local enlargement at B;

[0021] Figure 5 For the present invention Figure 1 A schematic diagram of the structure of the local enlargement at C;

[0022] Figure 6 For the present inventionFigure 2 Schematic diagram of the enlarged structure of part D;

[0023] Figure 7 Partial three-dimensional sectional structure schematic diagram of the present invention;

[0024] Figure 8 Partial three-dimensional structure schematic diagram of the present invention.

[0025] In the figure: 1, support frame; 11, third through port; 12, first limiting hole; 13, second limiting hole; 14, pin; 2, support mechanism; 21, fixed shaft; 22, stabilizing mechanism; 23, driven gear; 24, support cross plate; 25, first bevel gear; 221, first through port; 222, rotating shaft; 223, support vertical plate; 224, worm gear; 225, worm; 226, second bevel gear; 3, adjusting mechanism; 31, second through port; 32, threaded rod; 33, slider; 34, articulated rod; 35, adjusting plate; 4, transmission mechanism; 41, boom; 42, driving gear; 43, direction-changing gear; 44, toothed plate; 5, hoisting mechanism; 51, U-shaped frame; 52, rotating roller; 53, driving motor; 54, steel cable; 55, fixed pulley; 56, hook. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1-8 , a steel structure hoisting device for a hoisting machine in a limited space, including a support frame 1. Avoidance openings are provided at both the top and bottom of the support frame 1. A support mechanism 2 and an adjusting mechanism 3 are arranged on one side of the support frame 1. The support mechanism 2 is used to support and stabilize the support frame 1, and the adjusting mechanism 3 is arranged below the support mechanism 2. The adjusting mechanism 3 is used to adjust the inclination of the device. A transmission mechanism 4 is arranged on the support frame 1. The transmission mechanism 4 includes a boom 41. A driving gear 42 is arranged on one side of the boom 41. A direction-changing gear 43 is arranged on one side of the driving gear 42. A toothed plate 44 is arranged on one side of the direction-changing gear 43; when storing, press the boom 41 downward. When pressing the boom 41 downward, it drives the driving gear 42 to rotate, and then drives the direction-changing gear 43 to rotate. The direction-changing gear 43 drives the support mechanism 2 and the adjusting mechanism 3 to approach the support frame 1 simultaneously through the toothed plate 44. A hoisting mechanism 5 is arranged at the top of the boom 41. The hoisting mechanism 5 is used to lift an object.

[0028] During use, the lifting mechanism 5 can be activated to lift the equipment. After use, the lifting mechanism 5 is turned off and the boom 41 is manually pressed downward. The boom 41 drives the lifting mechanism 5 to move downward. At the same time, the boom 41 drives the driving gear 42 to rotate. The driving gear 42 drives the reversing gear 43 to rotate. The reversing gear 43 drives the toothed plate 44 to move upward to drive the support mechanism 2 and the adjustment mechanism 3 to approach the support frame 1 simultaneously to complete the storage.

[0029] Furthermore, the support mechanism 2 includes a fixed shaft 21 and a stabilizing mechanism 22. The fixed shaft 21 is fixedly installed on one side of the support frame 1. A driven gear 23 is rotatably fitted on the fixed shaft 21. The driven gear 23 is fixedly installed with a support cross plate 24, and the driven gear 23 meshes with the toothed plate 44. A first bevel gear 25 is fixedly sleeved on the fixed shaft 21. When the toothed plate 44 is driven to move by pressing the boom 41, the toothed plate 44 drives the support cross plate 24 to approach the support frame 1 through the driven gear 23. After use, for storage, the toothed plate 44 can be driven to move upward by pressing the boom 41. The upward movement of the toothed plate 44 drives the driven gear 23 to rotate. The driven gear 23 drives the support cross plate 24 to approach the support frame to complete the storage.

[0030] Furthermore, the stabilizing mechanism 22 includes a first through opening 221. A rotating shaft 222 is rotatably fitted on the inner wall of the top of the first through opening 221. The bottom end of the rotating shaft 222 extends below the support cross plate 24. A support vertical plate 223 is fixedly installed at the bottom end of the rotating shaft 222. A worm gear 224 is fixedly sleeved on the rotating shaft 222. The worm gear 224 is arranged in the first through opening 221. A worm 225 is rotatably fitted on one side of the support cross plate 24. The worm 225 meshes with the worm gear 224. A second bevel gear 226 is fixedly sleeved at one end of the worm 225. The second bevel gear 226 meshes with the first bevel gear 25. During the movement of the support cross plate 24, the worm 225, the worm gear 224, the second bevel gear 226, and the support vertical plate 223 are driven to move simultaneously. While the second bevel gear 226 is moving, it rolls on the first bevel gear 25 to drive the worm 225 to drive the worm gear 224 to rotate. The worm gear 224 drives the vertical plate to move. During the process of the support cross plate 24 moving towards the support frame 1 for storage, the support cross plate 24 drives the worm 225, the worm gear 224, the second bevel gear 226, and the support vertical plate 223 to move simultaneously. At the same time, the second bevel gear 226 rolls on the first bevel gear 25 to drive the worm 225 to rotate. The worm 225 drives the worm gear 224 to rotate. The worm gear 224 drives the rotating shaft 222 to rotate. The rotating shaft 222 drives the support vertical plate 223 to approach the support cross plate 24 for storage.

[0031] Further, the adjusting mechanism 3 includes a second through port 31. A threaded rod 32 is rotatably fitted on one inner wall of the second through port 31. One end of the threaded rod 32 extends to the outside of the supporting vertical plate 223 and is provided with a hexagonal groove. A slider 33 is threadedly fitted on the threaded rod 32, and the slider 33 is slidably fitted with the two inner walls of the second through port 31. A hinge rod 34 is hingedly installed at the bottom of the slider 33, and an adjusting plate 35 is hingedly installed at the bottom of the supporting vertical plate 223. The adjusting plate 35 is hinged to the hinge rod 34. By rotating the threaded rod 32, the threaded rod 32 drives the hinge rod 34 through the slider 33 to lift the adjusting plate 35. When using this hoisting device to lift on a slope, the threaded rod 32 can be rotated. The threaded rod 32 drives the slider 33 to move, and the slider 33 drives the hinge rod 34 to lift the adjusting plate 35 and form a certain angle with the supporting vertical plate 223 to change the center of gravity position during hoisting.

[0032] Further, a third through port 11 is opened on one outer wall of the support frame 1. The reversing gear 43 is arranged in the third through port 11. The reversing gear 43 is used to change the transmission direction of the machine. The reversing gear 43 is meshed with the driving gear 42, and the driving gear 42 is arranged on one side of the support frame 1. The reversing gear 43 is meshed with the toothed plate 44, and the toothed plate 44 is arranged in the support frame 1. The top end of the toothed plate 44 penetrates through the corresponding avoidance port and extends above the support frame 1. The toothed plate 44 is slidably fitted with one inner wall of the support frame 1.

[0033] Further, a first limiting hole 12 is opened on the support frame 1, and a second limiting hole 13 is opened on the toothed plate 44. A pin 14 is arranged in the first limiting hole 12 and the second limiting hole 13. The pin 14 is used to limit the position of the toothed plate 44. After use, the pin 14 can be removed from the first limiting hole 12 and the second limiting hole 13, and then the device can be stored.

[0034] Further, the hoisting mechanism 5 includes a U-shaped frame 51. Rotating rollers 52 are rotatably fitted on the two inner walls of the U-shaped frame 51. A driving motor 53 is arranged on one side of the U-shaped frame 51, and the output shaft of the driving motor 53 is fixedly connected to the rotating roller 52. When in use, the driving motor 53 is started, and the output shaft of the driving motor 53 drives the rotating roller 52 to rotate. The rotating roller 52 performs hoisting through the steel cable 54 and the hook 56 proposed below.

[0035] Further, a steel cable 54 is arranged on the rotating roller 52. A fixed pulley 55 is arranged at one end of the lifting arm 41. The steel cable 54 passes through the fixed pulley 55. The fixed pulley 55 is used to reduce the friction force of the steel cable 54. A concave surface is arranged on the fixed pulley 55 to limit the position of the steel cable 54. One end of the steel cable 54 is provided with a hook 56.

[0036] Working principle: When in use, in case of a slope condition, the threaded rod 32 can be rotated. The threaded rod 32 drives the slider 33 to move. The slider 33 drives the articulated rod 34 to lift the adjusting plate 35 and form a certain angle with the supporting vertical plate 223 to change the center-of-gravity position during lifting. After the adjustment is completed, the equipment to be lifted can be hung on the hook 56. Then, the driving motor 53 can be started. The output shaft of the driving motor 53 drives the rotating roller 52 to rotate. The rotating roller 52 performs lifting through the steel cable 54 and the hook 56. After the lifting is completed, the driving motor 53 is turned off and the threaded rod 32 is rotated in the reverse direction to restore it to the initial position. Subsequently, the pin 14 is removed from the first limiting hole 12 and the second limiting hole 13, and the lifting arm 41 is pressed to drive the lifting arm 41 to move downward. The lifting arm 41 drives the driving motor 53, the rotating roller 52, the steel cable 54, the hook 56 and the fixed pulley 55 to move simultaneously. At the same time, the lifting arm 41 drives the driving gear 42 to rotate. The driving gear 42 drives the direction-changing gear 43 to rotate. The direction-changing gear 43 drives the toothed plate 44 to move upward to drive the driven gear 23 to rotate. The driven gear 23 drives the worm 225, the worm gear 224, the second bevel gear 226 and the supporting vertical plate 223 to move simultaneously towards the support frame 1;

[0037] While the supporting cross plate 24 drives the second bevel gear 226 to move, the second bevel gear 226 can roll on the first bevel gear 25 to drive the worm 225 to rotate. The worm 225 drives the worm gear 224 to rotate. The worm gear 224 drives the rotating shaft 222 to rotate. The rotating shaft 222 drives the supporting vertical plate 223 to approach the supporting cross plate 24 for storage. During the storage process of the supporting vertical plate 223, the threaded rod 32, the slider 33, the articulated rod 34 and the adjusting plate 35 are simultaneously stored. During later use, as long as the lifting arm 41 is dragged, the supporting cross plate and the supporting vertical plate can be driven to return to the initial position, and the pin 14 can be inserted into the first limiting hole 12 and the second limiting hole 13 for use.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure hoisting device for a hoisting machine in a confined space, comprising a support frame (1), characterized in that: The top and bottom of the support frame (1) are both provided with avoidance openings. A support mechanism (2) and an adjustment mechanism (3) are arranged on one side of the support frame (1). The support mechanism (2) is used to support and stabilize the support frame (1), and the adjustment mechanism (3) is arranged below the support mechanism (2). The adjustment mechanism (3) is used to adjust the inclination of the device. A transmission mechanism (4) is arranged on the support frame (1). The transmission mechanism (4) includes a boom (41). A driving gear (42) is arranged on one side of the boom (41). A direction-changing gear (43) is arranged on one side of the driving gear (42). A toothed plate (44) is arranged on one side of the direction-changing gear (43). When storing, press down the boom (41). While the boom (41) moves downward, it drives the driving gear (42) to rotate, and then drives the direction-changing gear (43) to rotate. The direction-changing gear (43) drives the support mechanism (2) and the adjustment mechanism (3) to move closer to the support frame (1) simultaneously through the toothed plate (44). A hoisting mechanism (5) is arranged on the top of the boom (41). The hoisting mechanism (5) is used to hoist objects. The support mechanism (2) includes a fixed shaft (21) and a stabilizing mechanism (22). The fixed shaft (21) is fixedly installed on one side of the support frame (1). A driven gear (23) is rotatably fitted on the fixed shaft (21). A support cross plate (24) is fixedly installed on the driven gear (23). The driven gear (23) is meshed with the toothed plate (44). A first bevel gear (25) is fixedly sleeved on the fixed shaft (21). When pressing the boom (41) to drive the toothed plate (44) to move, the toothed plate (44) drives the support cross plate (24) to move closer to the support frame (1) through the driven gear (23). The stabilizing mechanism (22) includes a first through opening (221). A rotating shaft (222) is rotatably fitted on the inner wall of the top of the first through opening (221). The bottom end of the rotating shaft (222) extends below the support cross plate (24). A support vertical plate (223) is fixedly installed at the bottom end of the rotating shaft (222). A worm gear (224) is fixedly sleeved on the rotating shaft (222). The worm gear (224) is arranged in the first through opening (221). A worm (225) is rotatably fitted on one side of the support cross plate (24). The worm (225) is meshed with the worm gear (224). A second bevel gear (226) is fixedly sleeved at one end of the worm (225). The second bevel gear (226) is meshed with the first bevel gear (25). During the movement of the support cross plate (24), it drives the worm (225), the worm gear (224), the second bevel gear (226) and the support vertical plate (223) to move simultaneously. While the second bevel gear (226) moves, it drives the first bevel gear (25) to roll, and then drives the worm (225) to drive the worm gear (224) to rotate. The worm gear (224) drives the support vertical plate to move. On one outer wall of the support frame (1), a third through port (11) is provided. The reversing gear (43) is arranged in the third through port (11). The reversing gear (43) meshes with the driving gear (42), and the driving gear (42) is arranged on one side of the support frame (1). The reversing gear (43) meshes with the toothed plate (44), and the toothed plate (44) is arranged in the support frame (1). The top end of the toothed plate (44) penetrates through the corresponding avoidance port and extends above the support frame (1). The toothed plate (44) is in sliding fit with the inner wall on one side of the support frame (1).

2. The steel structure hoisting device for a hoisting machine in a confined space according to claim 1, characterized in that: The adjusting mechanism (3) includes a second through port (31). A threaded rod (32) is rotatably fitted on the inner wall on one side of the second through port (31). One end of the threaded rod (32) extends to the outside of the support vertical plate (223) and is provided with a hexagonal groove. A slider (33) is in threaded fit with the threaded rod (32), and the slider (33) is in sliding fit with the inner walls on both sides of the second through port (31). A hinge rod (34) is hingedly installed at the bottom of the slider (33). An adjusting plate (35) is hingedly installed at the bottom of the support vertical plate (223). The adjusting plate (35) is hinged to the hinge rod (34); by rotating the threaded rod (32), the threaded rod (32) drives the hinge rod (34) through the slider (33) to lift the adjusting plate (35).

3. The steel structure hoisting device for a hoisting machine in a confined space according to claim 1, wherein: A first limiting hole (12) is provided on the support frame (1). A second limiting hole (13) is provided on the toothed plate (44). A pin (14) is arranged in the first limiting hole (12) and the second limiting hole (13).

4. The steel structure hoisting device for a hoisting machine in a confined space according to claim 1, wherein: The hoisting mechanism (5) includes a U-shaped frame (51). Rotating rollers (52) are rotatably fitted on the inner walls on both sides of the U-shaped frame (51). A driving motor (53) is arranged on one side of the U-shaped frame (51), and the output shaft of the driving motor (53) is fixedly connected to the rotating roller (52).

5. The steel structure hoisting device for a hoisting machine in a confined space according to claim 4, characterized in that: A steel cable (54) is arranged on the rotating roller (52). A fixed pulley (55) is arranged at one end of the boom (41). The steel cable (54) passes through the fixed pulley (55), and a hook (56) is arranged at one end of the steel cable (54).

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