Cantilever beam type electric hoist
By installing components such as guide rods, guide rings, transmission wheels and alarms on cantilever beam electric hoist, the problems of ceiling and hook limits when lifting heavy objects are solved, and the equipment's anti-top impact and safety reminder is realized, which improves the Practicality and stability of the equipment.
Patent Information
- Application Number
- CN202422856918.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The existing cantilever beam electric hoist is prone to damage to the top when lifting heavy objects, and the hook limit effect is poor, which poses safety hazards and is difficult to remind staff to be too high in lifting height.
By installing guide rods, guide rings, transmission wheels, alarms, hooks, return springs and other components on the electric hoist, the limit and alarm functions of the guide ring are realized, so as to avoid heavy objects from leaving the hook, and improve the stability and protection of the equipment. Effect.
Effectively prevent the electric hoist from being damaged from the top, remind staff to remind them to be too high in lifting height, avoid heavy objects from falling off the hook, and improve the practicality and safety of the equipment.
Smart Images
Figure CN222225774U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric hoists, in particular to a cantilever beam type electric hoist. Background Art
[0002] Electric hoist is a special lifting equipment installed on overhead crane and gantry crane. Electric hoist has the characteristics of small size, light weight, simple operation and convenient use. It is used in industrial and mining enterprises, warehouses, docks and other places. The working principle is to power supply through the busbar, use the handle to operate, and control the lifting motor and travel motor of the electric hoist through the control circuit in the control box to achieve the purpose of lifting equipment.
[0003] The cantilever beam electric hoist in the prior art, when lifting heavy objects, is prone to top collision and damage to the electric hoist when the height of the lifting heavy objects is too high, which is inconvenient to remind the staff that the lifting height is too high. In addition, the existing cantilever beam electric hoist has a poor limiting effect of the hook, and the heavy objects are easy to fall off, which poses certain safety hazards. A cantilever beam electric hoist is now invented to solve the above problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a cantilever beam type electric hoist, which solves the problems raised in the above background technology.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a cantilever beam electric hoist, including a lifting trolley and an electric hoist, guide rods are installed on both sides of the electric hoist, the outer surface of the guide rod is sleeved with a guide ring, the outer surface of the guide ring is installed with a support rod, a rectangular frame is installed on the end of the support rod away from the guide ring, the inner wall of the rectangular frame is rotatably connected to a transmission wheel through an axle rod, U-shaped plates are installed on both sides of the rectangular frame, an alarm is installed on the outer side of the U-shaped plate, an annular block is installed on the end of the U-shaped plate away from the rectangular frame, a contact switch is installed on the bottom of the U-shaped plate, a lifting rope is arranged inside the electric hoist, a circular baffle is installed on the end of the lifting rope, and the circular baffle is installed on the end of the lifting rope. A hook is installed at the bottom of the plate, an L-shaped plate is installed on the top of the hook, a return spring is installed on the inner wall of the L-shaped plate, a frame baffle is installed at one end of the return spring, a T-shaped slider is installed on the top of the frame baffle, push blocks are installed on both sides of the frame baffle, an L-shaped positioning block is installed on the top of the electric hoist, a positioning groove with the front and rear direction as the depth direction and the left and right direction as the length direction is provided inside the lifting trolley, a limit spring is installed inside the positioning groove, a positioning slider is installed at one end of the limit spring, a limit rod is installed at one end of the positioning slider, a matching plate is installed at one end of the limit rod, threaded holes are provided inside the matching plate and the lifting trolley, and bolts are provided inside the threaded holes.
[0006] Optionally, there are two transmission wheels, the lifting rope is located between the two transmission wheels, and the lifting rope runs through the annular block.
[0007] Optionally, the position of the circular baffle corresponds to the position of the contact switch, and the diameter of the circular baffle is greater than the diameter of the annular block.
[0008] Optionally, the inner top wall of the L-shaped plate is provided with a T-shaped groove having an up-and-down direction as a depth direction and a front-and-back direction as a length direction. The end of the T-shaped slider is located inside the T-shaped groove, and the T-shaped slider can slide along the length direction of the T-shaped groove.
[0009] Optionally, the outer side surface of the frame-shaped baffle abuts against the inner wall of the hook, and the side surface of the matching plate close to the limit rod abuts against the side surface of the lifting trolley.
[0010] Optionally, the position of the lifting trolley is higher than that of the electric hoist, and the lifting trolley, the electric hoist, the alarm and the contact switch are all electrically connected to an external power supply through wires.
[0011] Optionally, an L-shaped positioning groove is provided in the front of the lifting trolley in the front-rear length direction, and the end of the L-shaped positioning block is inserted into the inside of the L-shaped positioning groove.
[0012] Optionally, a side surface of the L-shaped positioning block is provided with a limiting groove with the left-right direction as the depth direction, the end of the limiting rod away from the matching plate is inserted into the limiting groove, and the end of the positioning slide block is located inside the positioning slide groove.
[0013] The utility model provides a cantilever beam electric hoist, which has the following beneficial effects:
[0014] 1. The cantilever beam type electric hoist, through the arrangement of the guide rod, guide ring, support rod, rectangular frame, transmission wheel, U-shaped plate, alarm, annular block, contact switch, lifting rope and circular baffle, enables the cantilever beam type electric hoist to play the role of preventing top impact and avoiding damage to the electric hoist. As the position of the lifting rope changes, the guide ring moves on the guide rod and plays a role of limiting through the circular ring block. Through the cooperation of the circular baffle and the contact switch, the alarm is convenient to sound to remind the staff, thereby improving the protection effect of the electric hoist and achieving the purpose of improving practicality.
[0015] 2. The cantilever beam type electric hoist, through the arrangement of the hook, L-shaped plate, reset spring, frame-type baffle, T-shaped slider, push block, L-shaped positioning block, limit spring, positioning slider, limit rod, matching plate and bolts, enables the cantilever beam type electric hoist to prevent the lifted heavy object from escaping from the hook. The cooperation of the reset spring and the frame-type baffle plays a limiting role to prevent the heavy object from escaping from the hook. The cooperation of the limit spring and the limit rod improves the installation stability between the lifting trolley and the electric hoist, thereby achieving the purpose of improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;
[0018] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;
[0019] Figure 4 It is a structural schematic diagram of the utility model in front view section;
[0020] Figure 5 For this utility model Figure 4 The enlarged structural diagram at C in the middle;
[0021] Figure 6 It is a schematic diagram of the structure of the side cross-section of the utility model;
[0022] Figure 7 For this utility model Figure 6 The enlarged structural diagram at D in the middle;
[0023] Figure 8 It is a schematic diagram of the structure of the utility model in top view.
[0024] In the figure: 1. lifting trolley; 2. electric hoist; 3. guide rod; 4. guide ring; 5. support rod; 6. rectangular frame; 7. transmission wheel; 8. U-shaped plate; 9. alarm; 10. ring block; 11. contact switch; 12. lifting rope; 13. round baffle; 14. hook; 15. L-shaped plate; 16. reset spring; 17. frame baffle; 18. T-shaped slider; 19. push block; 20. L-shaped positioning block; 21. limit spring; 22. positioning slider; 23. limit rod; 24. matching plate; 25. bolt. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example 1
[0026] See also Figures 1 to 6The utility model provides a technical solution: a cantilever beam electric hoist, including a lifting trolley 1 and an electric hoist 2, the position of the lifting trolley 1 is higher than the position of the electric hoist 2, the lifting trolley 1, the electric hoist 2, the alarm 9 and the contact switch 11 are all electrically connected to the external power supply through wires, an L-shaped positioning groove in the front and rear length direction is opened in front of the lifting trolley 1, the end of the L-shaped positioning block 20 is inserted into the inside of the L-shaped positioning groove, guide rods 3 are installed on both sides of the electric hoist 2, the outer surface of the guide rod 3 is sleeved with a guide ring 4, the outer surface of the guide ring 4 is installed with a support rod 5, and the end of the support rod 5 away from the guide ring 4 is installed with a rectangular frame 6, the rectangular The inner wall of the frame 6 is rotatably connected to a transmission wheel 7 through an axial rod. There are two transmission wheels 7. The lifting rope 12 is located between the two transmission wheels 7. The lifting rope 12 runs through the annular block 10. U-shaped plates 8 are installed on both side surfaces of the rectangular frame 6. An alarm 9 is installed on the outer side of the U-shaped plate 8. An annular block 10 is installed at the end of the U-shaped plate 8 away from the rectangular frame 6. A contact switch 11 is installed at the bottom of the U-shaped plate 8. A lifting rope 12 is arranged inside the electric hoist 2. A circular baffle 13 is installed at the end of the lifting rope 12. The position of the circular baffle 13 corresponds to the position of the contact switch 11. The diameter of the circular baffle 13 is larger than the diameter of the annular block 10.
[0027] When in use, the electric hoist 2 reels in or releases the lifting rope 12, and the lifting rope 12 abuts against the transmission wheel 7. When the lifting rope 12 is reeled in or released, the transmission wheel 7 rotates. As the position of the lifting rope 12 on the electric hoist 2 changes, the lifting rope 12 provides a component force in the left and right directions for the transmission wheel 7, and the guide ring 4 is sleeved on the outside of the guide rod 3. The transmission wheel 7 moves with the change of the position of the lifting rope 12, so that the guide ring 4 is positioned and moved along the length direction of the guide rod 3. The position of the circular baffle 13 corresponds to the position of the contact switch 11. When the hook 14 lifts the heavy object and the position is raised too high, the circular baffle 13 abuts against the contact switch 11, triggering an electrical signal to make the alarm 9 sound, which is convenient for reminding the staff. The annular block 10 plays a blocking role and plays a role in preventing top impact, thereby avoiding damage to the electric hoist 2 and improving practicality. Example 2
[0028] See also Figures 1 to 8The utility model provides a technical solution: a cantilever beam electric hoist, a hook 14 is installed at the bottom of a circular baffle 13, an L-shaped plate 15 is installed on the top of the hook 14, a T-shaped slide groove is opened on the inner top wall of the L-shaped plate 15 with the up-down direction as the depth direction and the front-back direction as the length direction, the end of the T-shaped slider 18 is located inside the T-shaped slide groove, and the T-shaped slider 18 can slide along the length direction of the T-shaped slide groove, a return spring 16 is installed on the inner wall of the L-shaped plate 15, and a frame-type baffle 17 is installed on one end of the return spring 16, the outer side surface of the frame-type baffle 17 abuts against the inner wall of the hook 14, and a side surface of the matching plate 24 close to the limit rod 23 abuts against a side surface of the lifting trolley 1, and a T-shaped slider 18 is installed on the top of the frame-type baffle 17. Push blocks 19 are installed on both side surfaces, and an L-shaped positioning block 20 is installed on the top of the electric hoist 2. A limiting groove with the left and right direction as the depth direction is opened on one side of the L-shaped positioning block 20, and the end of the limiting rod 23 away from the matching plate 24 is inserted into the inside of the limiting groove, and the end of the positioning slide block 22 is located inside the positioning slide groove. A positioning slide groove with the front-to-back direction as the depth direction and the left-to-right direction as the length direction is opened inside the lifting trolley 1, and a limiting spring 21 is installed inside the positioning slide groove, and a positioning slide block 22 is installed at one end of the limiting spring 21, and a limiting rod 23 is installed at one end of the positioning slide block 22, and a matching plate 24 is installed at one end of the limiting rod 23, and threaded holes are opened inside the matching plate 24 and the lifting trolley 1, and bolts 25 are arranged inside the threaded holes.
[0029] When in use, when the hook 14 hooks a heavy object, the push block 19 is pushed, so that the push block 19 drives the frame baffle 17 to move, so that the reset spring 16 is forced to shrink, and the T-shaped slider 18 is positioned and moved along the length direction of the T-shaped slide groove, which is convenient for hooking the heavy object on the hook 14. After hooking the heavy object, the push block 19 is released, and the frame baffle 17 is reset through the elastic tension of the reset spring 16, so that the frame baffle 17 abuts against the end of the hook 14, which plays a limiting role and prevents the heavy object from being unhooked. When assembling and installing the electric hoist 2 and the lifting trolley 1, the bolt 25 is first unscrewed, and then the matching plate 24 is pulled, so that the matching plate 24 drives the limit rod 23 and the positioning slider 22 to move, so that the positioning slider 22 is positioned and moved along the length direction of the positioning slide groove, so that the limit spring 2 1 is forced to shrink, so that the limiting rod 23 is away from the L-shaped positioning groove, and the electric hoist 2 is moved to make the L-shaped positioning block 20 enter the inside of the L-shaped positioning groove. When the L-shaped positioning block 20 completely enters the inside of the L-shaped positioning groove, the limiting rod 23 is aligned with the limiting groove, and the matching plate 24 is loosened. Through the elastic tension of the limiting spring 21, the end of the limiting rod 23 is inserted into the inside of the limiting groove, which is convenient for limiting the position of the L-shaped positioning block 20. The bolt 25 is screwed to make the bolt 25 enter the inside of the threaded hole, so that the matching plate 24 is tightly connected with the lifting trolley 1. When the bolt 25 is loose, the position of the L-shaped positioning block 20 can still be well limited through the cooperation of the limiting spring 21 and the limiting rod 23, thereby improving the stability of assembly and installation and improving practicality.
[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A cantilever beam electric hoist, comprising a lifting trolley and an electric hoist, characterized in that: Guide rods are installed on both sides of the electric hoist, and a guide ring is sleeved on the outer surface of the guide rod. A support rod is installed on the outer surface of the guide ring. A rectangular frame is installed on the end of the support rod away from the guide ring. The inner wall of the rectangular frame is rotatably connected to a transmission wheel through an axle rod. U-shaped plates are installed on both sides of the rectangular frame, and an alarm is installed on the outer side of the U-shaped plate. An annular block is installed on the end of the U-shaped plate away from the rectangular frame. A contact switch is installed at the bottom of the U-shaped plate. A lifting rope is arranged inside the electric hoist, and a circular baffle is installed at the end of the lifting rope. A hook is installed at the bottom of the circular baffle, and an L-shaped plate is installed on the top of the hook. A return spring is installed on the inner wall, a frame baffle is installed on one end of the return spring, a T-shaped slider is installed on the top of the frame baffle, push blocks are installed on both sides of the frame baffle, an L-shaped positioning block is installed on the top of the electric hoist, a positioning slide groove with the front and rear direction as the depth direction and the left and right direction as the length direction is provided inside the lifting trolley, a limit spring is installed inside the positioning slide groove, a positioning slider is installed on one end of the limit spring, a limit rod is installed on one end of the positioning slider, a matching plate is installed on one end of the limit rod, threaded holes are provided inside the matching plate and the lifting trolley, and bolts are provided inside the threaded holes.
2. The cantilever beam electric hoist according to claim 1, characterized in that: There are two transmission wheels, the lifting rope is located between the two transmission wheels, and the lifting rope runs through the annular block.
3. The cantilever beam electric hoist according to claim 1, characterized in that: The position of the circular baffle corresponds to the position of the contact switch, and the diameter of the circular baffle is greater than the diameter of the annular block.
4. The cantilever beam electric hoist according to claim 1, characterized in that: The inner top wall of the L-shaped plate is provided with a T-shaped slide groove with the up-down direction as the depth direction and the front-back direction as the length direction. The end of the T-shaped slider is located inside the T-shaped slide groove, and the T-shaped slider can slide along the length direction of the T-shaped slide groove.
5. The cantilever beam electric hoist according to claim 1, characterized in that: The outer side surface of the frame-shaped baffle plate abuts against the inner wall of the hook, and the side surface of the matching plate close to the limit rod abuts against the side surface of the lifting trolley.
6. The cantilever beam electric hoist according to claim 1, characterized in that: The position of the lifting trolley is higher than that of the electric hoist. The lifting trolley, the electric hoist, the alarm and the contact switch are all electrically connected to an external power source through wires.
7. The cantilever beam electric hoist according to claim 1, characterized in that: An L-shaped positioning groove with the front-to-back direction as the length direction is opened in the front of the lifting trolley, and the end of the L-shaped positioning block is inserted into the inside of the L-shaped positioning groove.
8. The cantilever beam electric hoist according to claim 1, characterized in that: A limiting groove with the left and right direction as the depth direction is opened on one side of the L-shaped positioning block, the end of the limiting rod away from the matching plate is inserted into the limiting groove, and the end of the positioning slide block is located in the positioning slide groove.