A hoisting mechanism
By designing the limiter and guide hole structure in the hoisting mechanism, the risk of unhooking and the problem of high-altitude operation during the hoisting process were solved, achieving both safety and ease of unhooking during the hoisting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNWARD INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-07
AI Technical Summary
During hoisting, there is a risk of the sleeve or auger rod becoming detached, and the detachment operation requires working at height, which poses safety hazards and inconvenience.
Design a hoisting mechanism including a hoisting body, a lifting component, a rotating component, and a limiter. The limiter restricts or releases the rotation of the rotating component at different positions to ensure the safety of the hoisting process, and the guide hole and connecting rope enable convenient unhooking operation.
This effectively avoids the risk of unhooking during hoisting, reduces the risks of working at heights, and improves the convenience and safety of unhooking operations.
Smart Images
Figure CN224467340U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hoisting equipment technology, and in particular to a hoisting mechanism. Background Technology
[0002] Currently, during construction on-site, there is a process of hoisting and installing components such as sleeves and spiral rods.
[0003] Taking a casing as an example, the casing is usually laid flat before hoisting. If vibration occurs during the hoisting stage, the ordinary hook-type hoisting structure has a risk of disengagement due to its unlimited positioning structure. If a limiting / self-locking structure is added to the ordinary hook-type hoisting structure (the self-locking structure can play a certain blocking role during hoisting to prevent the hoisted device from slipping off the hook, reducing the risk of disengagement), the hook needs to be manually disengaged after hoisting. Since the casing is in a vertical position when docked and the hoisting point is high, the workers need to use aerial work equipment to assist in high-altitude operations, which is inconvenient for the construction process, and the disengagement process also poses certain safety hazards. Utility Model Content
[0004] The purpose of this application is to provide a lifting mechanism that can ensure both safety during the lifting process and ease of unhooking after lifting.
[0005] To achieve the above objectives, this application provides a lifting mechanism, comprising:
[0006] The hoisting body includes a mounting cylinder with a guide hole, which is configured to be positioned opposite to the hoisting hole of the hoisting component;
[0007] The lifting component is rotatably disposed inside the mounting cylinder and is used to rotate relative to the mounting cylinder along an axis in a first direction to pass through or exit the lifting hole of the lifting component;
[0008] Rotating component, connected to lifting component, used to rotate under the guidance of guide hole, so as to drive the lifting component to pass through or exit the lifting hole of the lifting component;
[0009] A limiter is movably mounted on the hoisting body for moving relative to the hoisting body along a second direction perpendicular to the first direction and between a first position and a second position, so as to limit the rotation of the rotating component in the first position and release the restriction on the rotation of the rotating component in the second position.
[0010] In some embodiments, the limiter has a limiting protrusion that contacts and abuts against the rotating member to limit the rotation of the rotating member.
[0011] In some embodiments, the rotating component includes an operating lever and a shaft passing through a guide hole. The inner end of the shaft is connected to a lifting component, and the operating lever is integrally disposed at the outer end of the shaft. The operating lever is used to contact and abut against the limiting protrusion.
[0012] In some embodiments, the hoisting mechanism further includes a connecting rope connected to the operating rod.
[0013] In some embodiments, the guide hole includes an inclined guide ramp configured to guide the rotating member to move the lifting member along a first direction when the rotating member rotates.
[0014] In some embodiments, the guide hole is a spiral hole provided on the wall of the mounting cylinder.
[0015] In some embodiments, the limiter has a through hole, the hoisting body has a waist-shaped hole, and a hoisting rope is threaded through the through hole and the waist-shaped hole. When the hoisting rope is taut, the limiter is in a first position, and when the hoisting rope is slack, the limiter is in a second position.
[0016] In some embodiments, the hoisting mechanism further includes:
[0017] A position sensor, located on the hoisting body, is used to detect the position status of the limit switch;
[0018] An alarm, connected in communication with a position sensor, is used to trigger an alarm when the limit switch does not fully lock the rotating part.
[0019] In some embodiments, one of the hoisting body and the limiter is provided with a slide rail, and the other is provided with a slide groove. The slide groove slides in conjunction with the slide rail so that the limiter slides relative to the hoisting body.
[0020] In some embodiments, a magnetic module is provided at the bottom of the hoisting body, which is used to adhere to and fix the hoisting component to the pipe wall.
[0021] Compared to the aforementioned background technology, the hoisting mechanism provided in this application includes a hoisting body, a lifting component, a rotating component, and a limiter. The hoisting body includes a mounting cylinder with a guide hole, which is positioned opposite to the hoisting hole of the hoisting component. The lifting component is rotatably disposed within the mounting cylinder and is used to rotate relative to the mounting cylinder along an axis in a first direction to pass through or exit the hoisting hole of the hoisting component. The rotating component is connected to the lifting component and is used to rotate under the guidance of the guide hole to drive the lifting component through or out of the hoisting hole of the hoisting component. The limiter is movably disposed on the hoisting body and is used to move relative to the hoisting body along a second direction perpendicular to the first direction and between a first position and a second position, thereby restricting the rotation of the rotating component in the first position and releasing the restriction on the rotation of the rotating component in the second position.
[0022] During the hoisting process, the lifting component is inserted into the mounting cylinder along the first direction and passes through the hoisting hole of the lifting component. The limiter is then moved to a first position relative to the hoisting body to restrict the rotation of the rotating component and prevent it from disengaging from the hoisting hole during hoisting. When unhooking is required after hoisting, the limiter is moved to a second position relative to the hoisting body to release the rotation restriction on the rotating component. The operator then rotates the rotating component within the guide hole, causing the lifting component to exit the hoisting hole, thus achieving the unhooking operation.
[0023] The advantages of this lifting mechanism include: Firstly, when the limiter moves to the first position, it directly and physically restricts the rotational freedom of the rotating component, forming a rigid lock. Even if the lifting component is subjected to lateral force, vibration, or accidental contact, the rotating component cannot rotate, completely avoiding the risk of slippage from the lifting hole due to rotation. Secondly, during unhooking, simply moving the limiter from the first position to the second position releases the omnidirectional restriction on the rotating component. Simultaneously, the rotating component, limited by the guide hole, creates a lever effect, allowing operators to apply only a small torque to drive the lifting component to rotate and exit the lifting hole, eliminating the need for complex operations and enhancing ease of use. Therefore, the lifting mechanism described above ensures both safety during the lifting process and ease of unhooking after lifting. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the overall structure of the hoisting mechanism in the embodiments of this application.
[0026] Figure 2 This is an exploded view of the hoisting mechanism in an embodiment of this application.
[0027] Figure 3 This is a schematic diagram of the hoisting mechanism in a locked state in an embodiment of this application.
[0028] Figure 4 for Figure 3 Enlarged view of part A in the middle.
[0029] Figure 5 This is a schematic diagram of the hoisting mechanism in the unlocked state in an embodiment of this application.
[0030] Figure 6 for Figure 5Enlarged view of part B in the middle.
[0031] Figure 7 This is a schematic diagram illustrating the process of the hoisting mechanism changing from a locked state to an unlocked state in an embodiment of this application.
[0032] in:
[0033] 10-Lifting body, 11-Installation cylinder, 12-Guide hole, 13-Oval hole;
[0034] 20 - Lifting components;
[0035] 30 - Rotating component, 31 - Shaft, 32 - Operating lever;
[0036] 40 - Limiter, 41 - Limiting protrusion, 42 - Through hole;
[0037] 50 - Connecting rope;
[0038] 60 - Lifting rope;
[0039] 70 - Lifting component, 71 - Lifting hole. Detailed Implementation
[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0041] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0042] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.
[0043] Please refer to Figures 1 to 7 , Figure 1 This is a schematic diagram of the overall structure of the hoisting mechanism in the embodiments of this application. Figure 2 This is an exploded view of the hoisting mechanism in an embodiment of this application. Figure 3 This is a schematic diagram of the hoisting mechanism in a locked state in an embodiment of this application. Figure 4 for Figure 3 Enlarged view of part A in the middle. Figure 5 This is a schematic diagram of the hoisting mechanism in the unlocked state in an embodiment of this application. Figure 6 for Figure 5 Enlarged view of part B in the middle. Figure 7This is a schematic diagram illustrating the process of the hoisting mechanism changing from a locked state to an unlocked state in an embodiment of this application.
[0044] The hoisting mechanism provided in this application embodiment includes a hoisting body 10, a lifting component 20, a rotating component 30, and a limiter 40.
[0045] The hoisting body 10, as the main load-bearing structure during the hoisting process, includes an installation cylinder 11 with a guide hole 12. The installation cylinder 11 is positioned opposite to the hoisting hole 71 of the hoisting component 70, which may be a sleeve. The hoisting component 20 is rotatably disposed inside the installation cylinder 11. The hoisting component 20 is used to rotate relative to the installation cylinder 11 along the axis of the first direction to pass through or exit the hoisting hole 71 of the hoisting component 70. The rotating component 30 is detachably connected to the hoisting component 20. The rotating component 30 is used to rotate under the guidance of the guide hole 12 to drive the hoisting component 20 to pass through or exit the hoisting hole 71 of the hoisting component 70. The limiter 40 is movably disposed on the hoisting body 10. The limiter 40 is used to move relative to the hoisting body 10 along a second direction perpendicular to the first direction and between a first position and a second position to restrict the rotation of the rotating component 30 in the first position and release the restriction on the rotation of the rotating component 30 in the second position.
[0046] It should be noted that the first direction mentioned above can be as follows: Figure 1 The first position can be the highest point of the limiter 40 on the lifting body 10, and the second position can be the lowest point of the limiter 40 on the lifting body 10. The first position can be the highest point of the limiter 40 on the lifting body 10, and the second position can be the lowest point of the limiter 40 on the lifting body 10.
[0047] During the hoisting process, the lifting component 20 is inserted into the mounting cylinder 11 along the first direction and passes through the hoisting hole 71 of the lifting component 70. The limiter 40 is moved to the first position relative to the hoisting body 10 to restrict the rotation of the rotating component 30, preventing the lifting component 20 from disengaging from the hoisting hole 71 of the lifting component 70 during hoisting. When unhooking is required after hoisting, the limiter 40 is moved to the second position relative to the hoisting body 10 to release the rotation restriction on the rotating component 30. The operator then rotates the rotating component 30 within the guide hole 12, causing the lifting component 20 to exit the hoisting hole 71 of the lifting component 70, thereby achieving the unhooking operation of the lifting component 70.
[0048] On the one hand, when the limiter 40 moves to the first position, it directly and physically restricts the rotational freedom of the rotating component 30, forming a rigid lock. At this time, even if the lifting component 20 is subjected to lateral force, vibration, or accidental contact, the rotating component 30 cannot drive the lifting component 20 to rotate, completely avoiding the risk of slippage from the lifting hole 71 caused by rotation. At the same time, the moving direction (second direction) of the limiter 40 is perpendicular to the rotation axis (first direction) of the lifting component 20, ensuring that external force cannot be transmitted to the limiter 40 through the lifting component 20, avoiding accidental triggering of unlocking.
[0049] On the other hand, during the unhooking operation, the limiter 40 only needs to be moved from the first position to the second position to release the all-round restriction on the rotating part 30. At the same time, the rotating part 30 forms a lever effect under the limit of the guide hole 12. The operator only needs to apply a small torque to drive the lifting part 20 to rotate out of the lifting hole 71. No complicated operation is required, which is conducive to the convenience of operation.
[0050] Therefore, the hoisting mechanism described above can ensure both safety during the hoisting process and ease of unhooking after hoisting.
[0051] Of course, depending on actual needs, visual operation can also be added. Specifically, the first / second position of the limiter 40 can be intuitively confirmed through mechanical slots or markings, reducing the risk of misoperation and improving unhooking efficiency.
[0052] To facilitate limiting the rotation of the rotating component 30, the limiter 40 is provided with a limiting protrusion 41, which contacts and abuts against the rotating component 30 to restrict the rotation of the rotating component 30.
[0053] The rotating component 30 includes an operating lever 32 and a shaft 31 passing through the guide hole 12. The inner end of the shaft 31 is connected to the lifting component 20, and the outer end of the shaft 31 extends to the outside of the mounting cylinder 11. The operating lever 32 is integrally disposed on the outer end of the shaft 31 and is used to contact and abut against the limiting protrusion 41.
[0054] To facilitate the release of the limiting state on the rotating part 30, the hoisting mechanism also includes a connecting rope 50, which is connected to the operating rod 32. In other words, the operating rod 32 not only serves to connect the rope but also to limit the movement.
[0055] As can be seen, the operating lever 32 is integrally set on the outer end of the shaft 31, so that the rotating component 30 has an overall T-shaped structure. The rotating component 30 is detachably installed on the lifting component 20 through the inner end of the shaft 31, and is connected to the flexible connecting rope 50 through the operating lever 32. In this way, the operator only needs to stand on the ground and pull the connecting rope 50 to make the rotating component 30 rotate from top to bottom.
[0056] When the limit switch 40 falls to the lowest position, the protruding part on the left side of the limit switch 40 (limit protrusion 41) will not come into contact with the operating rod 32, thereby releasing the obstruction effect on the rotating part 30. The operator can pull the connecting rope 50 to pull the rotating part 30 to the position where the operating rod 32 is facing down. At this time, the lifting part 20 will retract into the cavity of the mounting cylinder 11 of the lifting body 10.
[0057] In this way, the operator can pull the connecting rope 50 to rotate the rotating component 30 from top to bottom, thereby causing the lifting component 20 to exit the lifting hole 71 of the lifting component 70, thus realizing the unhooking operation of the lifting component 70. The operator only needs to stand on the ground during the above operation, eliminating the need for working at height, reducing the risk of working at height, and ensuring the safety of personnel.
[0058] In some embodiments, the guide hole 12 includes an inclined guide ramp configured to guide the rotating member 30 to move the lifting member 20 along a first direction when the rotating member 30 rotates.
[0059] In this embodiment, the guide hole 12 is a spiral hole provided on the wall of the mounting cylinder 11.
[0060] In this way, the rotating part 30 forms a lever effect under the limit of the spiral hole, and the operator only needs to apply a small torque to drive the lifting part 20 to rotate out of the lifting hole 71, which is especially suitable for heavy lifting parts 70.
[0061] In addition, the guide hole 12 not only guides the rotation of the rotating part 30, but its hole wall structure can also serve as a second barrier. If the rotating part 30 is subjected to force in an unexpected direction, the guide hole 12 can partially offset the torque.
[0062] In some embodiments, the limiter 40 is provided with a through hole 42, and the hoisting body 10 is provided with a waist-shaped hole 13. A hoisting rope 60 is threaded through the through hole 42 and the waist-shaped hole 13. When the hoisting rope 60 is in a taut state, the limiter 40 is in a first position, and when the hoisting rope 60 is in a slack state, the limiter 40 is in a second position.
[0063] Understandably, the lifting rope 60 is connected to the boom. During lifting, the lifting rope 60 is taut under the action of the boom. At this time, the lifting rope 60 generates tension, causing the limiter 40 to slide upward to the highest position of the lifting body 10. At this time, the limiting protrusion 41 of the limiter 40 will block the rotating component 30, preventing the rotating component 30 from rotating during lifting and causing the lifting component 20 to detach from the lifting hole 71. When the lifting is completed and it is necessary to unhook, the lifting rope 60 will be in a relaxed state. Due to gravity, the limiter 40 will fall to the lowest position of the lifting body 10. At this time, the protruding part on the left side of the limiter 40 will not obstruct the rotating component 30.
[0064] In some embodiments, the hoisting mechanism further includes a position sensor and an alarm. The position sensor is located on the hoisting body 10 and is used to detect the position status of the limiter 40. The alarm is communicatively connected to the position sensor and is used to trigger an alarm when the limiter 40 fails to fully lock the rotating member 30.
[0065] As can be seen, the position sensor continuously monitors whether the limit switch 40 has truly reached the first position (fully locked), forming an electronic verification of the mechanical lock. Once it is detected that the limit switch 40 is not in place (e.g., due to obstruction by foreign objects, wear, or improper operation), the alarm immediately triggers an audible and visual / wireless warning, alerting the operator that the lock is not complete. In this way, the internal locking state, which is invisible to the naked eye, is transformed into a perceptible alarm signal, compensating for the risk of failure that may arise from hidden defects in a purely mechanical structure.
[0066] In some embodiments, one of the hoisting body 10 and the limiter 40 is provided with a slide rail, and the other is provided with a slide groove. The slide groove slides in cooperation with the slide rail so that the limiter 40 slides relative to the hoisting body 10.
[0067] In this way, the limiter 40 can be adjusted between the first position and the second position by sliding relative to the hoisting body 10.
[0068] In some embodiments, the bottom of the hoisting body 10 is provided with a magnetic attraction module, which is used to adhere and fix it to the pipe wall of the hoisting component 70. This greatly facilitates the fixation of the hoisting body 10 to the pipe wall of the hoisting component 70, so that the mounting cylinder 11 is positioned opposite to the hoisting hole 71 of the hoisting component 70.
[0069] In summary, during the hoisting process, the hoisting component 20 is inserted into the mounting cylinder 11 along the first direction and passes through the hoisting hole 71 of the hoisting component 70. The rotating component 30 is moved to the position where the operating rod 32 is facing upward. The hoisting rope 60 passes through the through hole 42 of the limiter 40 and the waist-shaped hole 13 on the hoisting body 10. During hoisting, the hoisting rope 60 is taut under the action of the lifting rod. At this time, the hoisting rope 60 generates tension to drive the limiter 40 to slide up to the highest position of the hoisting body 10. At this time, the limiting protrusion 41 of the limiter 40 will block the rotating component 30 to prevent the rotating component 30 from rotating during hoisting and causing the hoisting component 20 to fall off the hoisting hole 71. When the hoisting is completed and the hook needs to be released, the hoisting rope 60 will be in a relaxed state. Due to gravity, the limiter 40 will fall to the lowest position of the hoisting body 10. At this time, the protruding part on the left side of the limiter 40 will not obstruct the rotating part 30. The operator can pull the connecting rope 50 to pull the rotating part 30 to the position where the operating rod 32 is facing down. At this time, the lifting part 20 will retract into the cavity of the mounting cylinder 11 of the hoisting body 10.
[0070] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0071] The lifting mechanism provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.
Claims
1. A hoisting mechanism, characterized in that, include: The hoisting body includes a mounting cylinder with a guide hole, the mounting cylinder being arranged opposite to the hoisting hole of the hoisting component; A lifting component is rotatably disposed within the mounting cylinder for rotating relative to the mounting cylinder along an axis in a first direction to pass through or exit the lifting hole of the lifting component; A rotating component, connected to the lifting component, is used to rotate under the guidance of the guide hole, so as to drive the lifting component to pass through or exit the lifting hole of the lifting component; A limiter is movably disposed on the hoisting body for moving relative to the hoisting body along a second direction perpendicular to the first direction and between a first position and a second position, so as to restrict the rotation of the rotating member in the first position and release the restriction on the rotation of the rotating member in the second position.
2. The hoisting mechanism as described in claim 1, characterized in that, The limiter is provided with a limiting protrusion, which contacts and abuts against the rotating member to restrict the rotation of the rotating member.
3. The hoisting mechanism as described in claim 2, characterized in that, The rotating component includes an operating rod and a shaft passing through the guide hole. The inner end of the shaft is connected to the lifting component, and the operating rod is integrally disposed on the outer end of the shaft. The operating rod is used to contact and abut against the limiting protrusion.
4. The hoisting mechanism as described in claim 3, characterized in that, The hoisting mechanism also includes a connecting rope, which is connected to the operating rod.
5. The hoisting mechanism as described in claim 1, characterized in that, The guide hole includes an inclined guide slope, which is configured to guide the rotating member to move the lifting member along the first direction when the rotating member rotates.
6. The hoisting mechanism as described in claim 5, characterized in that, The guide hole is a spiral hole provided on the wall of the mounting cylinder.
7. The hoisting mechanism as described in any one of claims 1-6, characterized in that, The limiter has a through hole, and the hoisting body has a waist-shaped hole. Hoisting ropes are threaded through the through hole and the waist-shaped hole. When the hoisting rope is taut, the limiter is in the first position, and when the hoisting rope is slack, the limiter is in the second position.
8. The hoisting mechanism as described in any one of claims 1-6, characterized in that, The hoisting mechanism also includes: A position sensor, located on the hoisting body, is used to detect the position status of the limiter; An alarm, which is communicatively connected to the position sensor, is used to trigger an alarm when the limiter fails to fully lock the rotating component.
9. The hoisting mechanism as described in any one of claims 1-6, characterized in that, The hoisting body and the limiter are either equipped with a slide rail or a slide groove. The slide groove slides in conjunction with the slide rail so that the limiter slides relative to the hoisting body.
10. The hoisting mechanism as described in any one of claims 1-6, characterized in that, The bottom of the hoisting body is equipped with a magnetic suction module, which is used to attach and fix the hoisting component to the pipe wall.