Lifting device for mechanical engineering assembly

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a lifting device for mechanical engineering assembly, which comprises a base. A fixing rope on a hanging piece is hung into the lifting hook, the handle is pulled, the square rod slides out of the square groove, the first spring resets to drive the annular sleeve to move downwards, the annular sleeve sleeves the lifting hook, and therefore the fixing rope of the hanging piece is prevented from falling off from the lifting hook, the motor drives the winding roller to rotate, and the winding roller winds the rope. The rope slides on the outer sides of the first fixed pulley and the second fixed pulley, the movable pulley moves upwards under the action of the rope so as to drive the lifting piece to ascend, when the lifting piece needs to be taken down, the annular sleeve is moved upwards, when the square rod slides into the square groove, the annular sleeve is fixed, and then the fixing rope of the lifting piece is taken out of the lifting hook. The lifting hook is protected through the annular sleeve, so that a lifting piece fixing rope in the lifting hook is not prone to unhooking, the phenomenon that a lifting piece is thrown out of the lifting hook when the shaking amplitude is large is avoided, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a lifting device for mechanical engineering assembly. Background Art

[0002] Mechanical assembly refers to the connection of mechanical parts or components in accordance with the technical requirements of the design, and the combination of mechanical parts or components into a machine. Mechanical assembly is an important part of machine manufacturing and repair, especially for mechanical repair. Since providing assembly parts is beneficial to the situation during mechanical manufacturing, the assembly work is more special. The quality of assembly work plays a very important role in the efficiency of the machine, the repair period, the labor and cost of the work.

[0003] China's publicly authorized invention: CN 211419391 U discloses a lifting device for mechanical engineering assembly, including a base, a column fixedly connected to the top of the base, a support column rotatably connected to the top of the support column, a lifting rod fixedly connected to the top of the support column, a horizontal support rod fixedly connected to the peripheral side surface of the support column, an end of the horizontal support rod away from the support column is fixedly connected to the peripheral side surface of the lifting rod, an oblique support rod fixedly connected to the peripheral side surface of the support column, and an end of the oblique support rod away from the support column is fixedly connected to the peripheral side surface of the lifting rod. In the lifting device for mechanical engineering assembly, a pop-up device can seal a hook opening. When the hanging part accidentally shakes with a large amplitude, the pop-up device blocks the hanging part to prevent the hanging part in the hook from accidentally unhooking from the hook opening to cause danger. The limiting ring has a limiting effect on the lifting block to prevent the hanging part from shaking sharply when transferring the hanging part, causing danger.

[0004] However, there are still some problems with the device. In actual use, only the elastic force of the spring itself is used to limit the hanging parts in the hook. When the shaking amplitude is large, the hanging parts may still be thrown out of the hook, which is dangerous. Therefore, we propose a lifting device for mechanical engineering assembly to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting device for mechanical engineering assembly to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting device for mechanical engineering assembly, comprising a base, a column is fixedly connected to the top of the base, a support column is rotatably connected to the top of the column, a U-shaped lifting rod is fixedly connected to the top of the support column, a first fixed pulley is rotatably connected to the right side of the top of the U-shaped lifting rod, a second fixed pulley is rotatably connected to the left side of the top of the U-shaped lifting rod, a fixing ring is fixedly connected to the bottom of the U-shaped lifting rod, a winding roller is rotatably connected to the top of the base, a square plate is provided above the base, a movable pulley is rotatably connected to the top of the square plate, and a winding roller is wound around and A rope is fixed thereto, and the rope passes over the first fixed pulley, the second fixed pulley and the movable pulley and is fixedly connected to the fixed ring; a cylinder is fixedly connected to the bottom of the square plate, and a hook is fixedly connected to the bottom end of the cylinder; an annular sleeve is provided on the outer sliding sleeve of the cylinder, and two L-shaped rods are fixedly connected to the outer side of the annular sleeve; two rectangular grooves are provided at the bottom of the square plate, and the L-shaped rod is in sliding contact with the inner wall of the rectangular groove; a through hole is provided on the front side of the square plate, and a square groove is provided on the front side of the L-shaped rod; a square rod is slidably connected to the inner side of the through hole, and the square rod is in sliding contact with the inner wall of the corresponding square groove; a ball bearing is embedded on the top end of the L-shaped rod.

[0007] Further preferably, two connection blocks are fixedly connected to the outer side of the cylinder, a first round rod is fixedly connected to the top of the connection block, and a second round rod is slidably sleeved on the outer side of the first round rod.

[0008] Further preferably, the top end of the second round rod is fixedly connected to the bottom of the square plate, a first spring is fixedly connected between the second round rod and the connecting block, and the first spring is movably sleeved on the outer side of the corresponding first round rod.

[0009] Further preferably, a fixing plate is fixedly connected to the front end of the square rod, two second springs are fixedly connected between the fixing plate and the square plate, and the second springs are movably sleeved on the outer sides of the corresponding square rods.

[0010] Further preferably, a handle is fixedly connected to the front side of the fixed plate, and a vertical plate is fixedly connected to the top of the base.

[0011] Further preferably, a motor is fixedly connected to the front side of the vertical plate, and an end portion of an output shaft of the motor is fixedly connected to the rear side of the winding roller.

[0012] Further preferably, a first oblique support rod and a second oblique support rod are fixedly connected between the U-shaped lifting rod and the support column.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model hangs the fixed rope on the hanging piece into the hook, pulls the handle forward, the square rod slides out of the square groove, the first spring is reset, and drives the annular sleeve to move downward, so that the annular sleeve can cover the hook, thereby preventing the fixed rope of the hanging piece from falling off the hook, and the motor drives the winding roller to rotate, the winding roller wraps the rope, and the rope slides on the outside of the first fixed pulley and the second fixed pulley. Under the action of the rope, the movable pulley moves upward, thereby driving the hanging piece to rise. When the hanging piece needs to be removed, the annular sleeve is moved upward, driving the L-shaped rod to move upward, and when the square rod slides into the square groove, the annular sleeve is fixed, and then the fixed rope of the hanging piece is taken out of the hook, and the hook is protected by the annular sleeve, so that the fixed rope of the hanging piece in the hook will not be easily unhooked, thereby avoiding the phenomenon that the hanging piece is thrown out of the hook when the shaking amplitude is large, and the safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0015] Figure 2 It is a right-side stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 This is a bottom-up three-dimensional structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional plan structure of the connection between the square plate, the L-shaped rod and the square rod of the utility model;

[0018] Figure 5 for Figure 2 A schematic diagram of the enlarged three-dimensional structure of the middle A area;

[0019] Figure 6 for Figure 5 Schematic diagram of the enlarged three-dimensional structure of area B in the middle.

[0020] In the figure: 1. base; 2. column; 3. support column; 4. U-shaped lifting rod; 5. first fixed pulley; 6. second fixed pulley; 7. fixed ring; 8. winding roller; 9. square plate; 10. rope; 11. movable pulley; 12. cylinder; 13. hook; 14. annular sleeve; 15. L-shaped rod; 16. rectangular groove; 17. through hole; 18. square groove; 19. square rod; 20. ball; 21. connecting block; 22. first round rod; 23. second round rod; 24. first spring; 25. second spring; 26. fixed plate; 27. handle; 28. vertical plate; 29. ​​motor; 30. first oblique support rod; 31. second oblique support rod. 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] Example

[0023] See also Figure 1-6 The utility model provides a technical solution: a lifting device for mechanical engineering assembly, comprising a base 1, a column 2 is fixedly connected to the top of the base 1, a support column 3 is rotatably connected to the top of the column 2, a U-shaped lifting rod 4 is fixedly connected to the top of the support column 3, a first fixed pulley 5 is rotatably connected to the top right of the U-shaped lifting rod 4, a second fixed pulley 6 is rotatably connected to the top left of the U-shaped lifting rod 4, a fixing ring 7 is fixedly connected to the bottom of the U-shaped lifting rod 4, a winding roller 8 is rotatably connected to the top of the base 1, a square plate 9 is arranged above the base 1, and a movable pulley 8 is rotatably connected to the top of the square plate 9. The pulley 11, the outer side of the winding roller 8 is wound and fixed with a rope 10, the rope 10 passes through the first fixed pulley 5, the second fixed pulley 6 and the movable pulley 11 and is fixedly connected to the fixed ring 7, the bottom of the square plate 9 is fixedly connected with a cylinder 12, the bottom end of the cylinder 12 is fixedly connected with a hook 13, the outer side of the cylinder 12 is slidably sleeved with an annular sleeve 14, the outer side of the annular sleeve 14 is fixedly connected with two L-shaped rods 15, the bottom of the square plate 9 is provided with two rectangular grooves 16, the L-shaped rod 15 is in sliding contact with the inner wall of the rectangular groove 16, the front side of the square plate 9 is provided with a through hole 17, the front side of the L-shaped rod 15 is provided with a through hole 17, and the front side of the L-shaped rod 15 is provided with a through hole 17. A square groove 18 is opened on the side, and a square rod 19 is slidably connected to the inner side of the through hole 17. The square rod 19 slides in contact with the inner wall of the corresponding square groove 18. A ball 20 is embedded on the top of the L-shaped rod 15. The fixed rope on the hanging piece is hung in the hook 13, and the handle 27 is pulled forward. The square rod 19 slides out of the square groove 18, and the first spring 24 is reset, driving the annular sleeve 14 to move downward, so that the annular sleeve 14 can cover the hook 13, thereby preventing the fixed rope of the hanging piece from falling off from the hook 13. The motor 29 drives the winding roller 8 to rotate, and the winding roller 8 winds the rope 10. The rope 10 is on the first fixed pulley 5. And slide on the outer side of the second fixed pulley 6. Under the action of the rope 10, the movable pulley 11 moves upward, thereby driving the hanger to rise. When the hanger needs to be removed, the annular sleeve 14 is moved upward to drive the L-shaped rod 15 to move upward. When the square rod 19 slides into the square groove 18, the annular sleeve 14 is fixed. Then the fixing rope of the hanger is taken out from the hook 13. The hook 13 is protected by the annular sleeve 14, so that the fixing rope of the hanger in the hook 13 will not be easily unhooked, thereby avoiding the phenomenon that the hanger is thrown out of the hook when the shaking amplitude is large, and the safety is higher.

[0024] In this embodiment, specifically: two connecting blocks 21 are fixedly connected to the outer side of the cylinder 12, a first round rod 22 is fixedly connected to the top of the connecting block 21, a second round rod 23 is slidably sleeved on the outer side of the first round rod 22, and the setting of the first round rod 22 plays a positioning effect;

[0025] In this embodiment, specifically: the top end of the second round rod 23 is fixedly connected to the bottom of the square plate 9, and a first spring 24 is fixedly connected between the second round rod 23 and the connecting block 21. The first spring 24 is movably sleeved on the outer side of the corresponding first round rod 22, and the setting of the first spring 24 plays a reset effect;

[0026] In this embodiment, specifically: the front end of the square rod 19 is fixedly connected with a fixing plate 26, and two second springs 25 are fixedly connected between the fixing plate 26 and the square plate 9. The second springs 25 are movably sleeved on the outer side of the corresponding square rod 19, and the setting of the second springs 25 plays a resetting effect;

[0027] In this embodiment, specifically: a handle 27 is fixedly connected to the front side of the fixed plate 26, and a vertical plate 28 is fixedly connected to the top of the base 1. The setting of the handle 27 facilitates pulling;

[0028] In this embodiment, specifically: a motor 29 is fixedly connected to the front side of the vertical plate 28, and the output shaft end of the motor 29 is fixedly connected to the rear side of the winding roller 8, and the setting of the motor 29 achieves an automation effect;

[0029] In this embodiment, specifically: a first oblique support rod 30 and a second oblique support rod 31 are fixedly connected between the U-shaped lifting rod 4 and the support column 3, and the provision of the first oblique support rod 30 plays a supporting effect.

[0030] The utility model is in operation: when in use, the fixed rope on the hanging part is hung into the hook 13, and the handle 27 is pulled forward to drive the fixed plate 26 to move forward, and the fixed plate 26 drives the square rod 19 to move, and the square rod 19 slides out of the square groove 18. At this time, the first spring 24 in the compressed state is reset, and under the action of the first spring 24's own elastic force, the first round rod 22 is driven to slide downward on the inner side of the second round rod 23, thereby driving the annular sleeve 14 to move downward, so that the annular sleeve 14 can cover the hook 13, thereby preventing the fixed rope of the hanging part from falling off from the hook 13, starting the motor 29, and the motor 29 drives the winding roller 8 to rotate, and the winding roller 8 winds the rope 10, and the rope 10 slides on the outer sides of the first fixed pulley 5 and the second fixed pulley 6. Under the action of the rope 10, the movable pulley 11 The ring sleeve 14 is moved upward, thereby driving the hanging part to rise. When the hanging part needs to be removed, the annular sleeve 14 is moved upward, driving the L-shaped rod 15 to move upward. When the ball 20 contacts the square rod 19, under the action of the extrusion force, the square rod 19 drives the fixing plate 26 to move forward, and the second spring 25 is stretched. When the square rod 19 slides into the square groove 18, under the action of the elastic force of the second spring 25 itself, the square rod 19 is driven to reset, thereby fixing the ring sleeve 14, and then the fixing rope of the hanging part is taken out from the hook 13, thereby forming a lifting device for mechanical engineering assembly. The hook 13 is protected by the annular sleeve 14, so that the fixing rope of the hanging part in the hook 13 will not be easily unhooked, thereby avoiding the phenomenon that the hanging part is thrown out of the hook 13 when the shaking amplitude is large, and the safety is higher.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting device for mechanical engineering assembly, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a column (2), the top of the column (2) is rotatably connected to a support column (3), the top of the support column (3) is fixedly connected to a U-shaped lifting rod (4), the top right side of the U-shaped lifting rod (4) is rotatably connected to a first fixed pulley (5), the top left side of the U-shaped lifting rod (4) is rotatably connected to a second fixed pulley (6), the bottom of the U-shaped lifting rod (4) is fixedly connected to a fixing ring (7), the top of the base (1) is rotatably connected to a winding roller (8), a square plate (9) is provided above the base (1), the top of the square plate (9) is rotatably connected to a movable pulley (11), a rope (10) is wound around and fixed to the outer side of the winding roller (8), the rope (10) is passed around the first fixed pulley (5), the second fixed pulley (6) and the movable pulley (11) ) and is fixedly connected to a fixing ring (7); a cylinder (12) is fixedly connected to the bottom of the square plate (9); a hook (13) is fixedly connected to the bottom end of the cylinder (12); an annular sleeve (14) is slidably sleeved on the outer side of the cylinder (12); two L-shaped rods (15) are fixedly connected to the outer side of the annular sleeve (14); two rectangular grooves (16) are provided at the bottom of the square plate (9); the L-shaped rods (15) are in sliding contact with the inner walls of the rectangular grooves (16); a through hole (17) is provided on the front side of the square plate (9); a square groove (18) is provided on the front side of the L-shaped rod (15); a square rod (19) is slidably connected to the inner side of the through hole (17); the square rod (19) is in sliding contact with the inner wall of the corresponding square groove (18); a ball (20) is embedded at the top end of the L-shaped rod (15).

2. A lifting device for mechanical engineering assembly according to claim 1, characterized in that: Two connection blocks (21) are fixedly connected to the outside of the cylinder (12); a first round rod (22) is fixedly connected to the top of the connection block (21); and a second round rod (23) is slidably sleeved on the outside of the first round rod (22).

3. A lifting device for mechanical engineering assembly according to claim 2, characterized in that: The top end of the second round rod (23) is fixedly connected to the bottom of the square plate (9), a first spring (24) is fixedly connected between the second round rod (23) and the connecting block (21), and the first spring (24) is movably sleeved on the outer side of the corresponding first round rod (22).

4. A lifting device for mechanical engineering assembly according to claim 3, characterized in that: A fixing plate (26) is fixedly connected to the front end of the square rod (19), and two second springs (25) are fixedly connected between the fixing plate (26) and the square plate (9), and the second springs (25) are movably sleeved on the outer sides of the corresponding square rods (19).

5. A lifting device for mechanical engineering assembly according to claim 4, characterized in that: A handle (27) is fixedly connected to the front side of the fixed plate (26), and a vertical plate (28) is fixedly connected to the top of the base (1).

6. A lifting device for mechanical engineering assembly according to claim 5, characterized in that: A motor (29) is fixedly connected to the front side of the vertical plate (28), and the end of the output shaft of the motor (29) is fixedly connected to the rear side of the winding roller (8).

7. A lifting device for mechanical engineering assembly according to claim 6, characterized in that: A first oblique support rod (30) and a second oblique support rod (31) are fixedly connected between the U-shaped lifting rod (4) and the support column (3).

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