Novel double rocker arm floor-to-ceiling pole
By using sprocket and chain drive and worm gear rotation mechanism, the flexible adjustment of the double rocker arm ground-mounted jib hook and the self-locking of the rocker arm angle are realized, solving the flexibility and convenience problems of existing equipment and improving the adaptability and practicality of hoisting operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU ELECTRIC POWER TOOLS CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-07
AI Technical Summary
The existing double-rocker ground-mounted jib cannot adjust the horizontal angle of the rocker arm, and the hook is fixed at the far end of the rocker arm, which is not flexible enough, resulting in less flexible and convenient lifting operations.
The hook can be moved flexibly by a sprocket and chain drive mechanism, and the rocker arm can be rotated horizontally by a worm gear and worm wheel rotation mechanism. Combined with the drive of a servo motor, the hook position can be flexibly adjusted and the rocker arm angle can be self-locked.
It significantly improves the flexibility and ease of operation of hoisting operations, meets the hoisting needs of different working conditions, and enhances the practicality and adaptability of the equipment.
Smart Images

Figure CN224467418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ground-mounted pole technology, and specifically discloses a novel double-rocker-arm ground-mounted pole. Background Technology
[0002] Ultra-high voltage (UHV) power transmission increases the economical transmission distance, enhances the energy transmission capacity, reduces energy loss during transmission, and offers numerous advantages such as saving on construction costs, conserving corridor space, and land area. These advantages have led to its widespread application throughout China. The double-arm gantry crane is a specialized lifting device used in power construction for erecting transmission towers (especially UHV towers). It is a type of suspended gantry crane. Its core feature is its two independently movable arms, enabling efficient and flexible tower hoisting operations.
[0003] The existing double-rocker arm ground-mounted gantry cannot adjust the horizontal angle of the rocker arm, and the hook is fixed at the far end of the rocker arm, which is not flexible enough. Therefore, a new type of double-rocker arm ground-mounted gantry is needed to solve this problem. Utility Model Content
[0004] This utility model proposes a novel double-rocker arm ground-mounted lifting pole, which achieves flexible horizontal movement of the hook through a sprocket and chain transmission mechanism, and simultaneously adopts a worm gear and worm wheel rotation mechanism to achieve horizontal rotation of the rocker arm with a self-locking function, significantly improving the practicality and ease of operation of lifting operations.
[0005] This utility model is implemented as follows: a novel double-rocker arm landing pole includes multiple standard sections fixedly connected by bolts and two rocker arm bodies. A mounting plate is fixedly connected to the upper end face of the uppermost standard section. A turntable is rotatably connected to the upper end face of the mounting plate through an adjustment mechanism. The rocker arm body is rotatably connected to the outer wall of the turntable through a hinge. A sliding sleeve is slidably connected to the outer wall of the rocker arm body. A hook is fixedly connected to the lower end face of the sliding sleeve. Two ear plates are fixedly connected to both sides of the upper end face of the rocker arm body. A sprocket is rotatably connected between the two ear plates on the same side through a coupling shaft. A chain is meshed with the outer walls of the two sprockets. A second servo motor with its output end fixedly connected to the sprocket is installed on the outer wall of one of the ear plates.
[0006] As a preferred embodiment of this novel double rocker arm landing pole, the adjustment mechanism includes a cavity formed inside the mounting plate. A second rotating shaft is fixedly connected to the lower end face of the turntable and rotatably connected to the mounting plate via a bearing. The lower end of the second rotating shaft extends into the cavity and is fixedly connected to a worm gear. A worm gear meshing with the worm gear is rotatably connected to the inner wall of the cavity. A third servo motor with its output end fixedly connected to the worm gear is mounted on the outer wall of the mounting plate.
[0007] As a preferred embodiment of the present invention, the upper end face of the turntable is fixedly connected to two symmetrically distributed support plates, and two first rotating shafts are rotatably connected between the two support plates. Two first servo motors with output ends fixedly connected to the first rotating shafts are installed on the outer wall of one of the support plates. Steel cables are fixedly connected to the outer walls of the two first rotating shafts, and the other ends of the two steel cables are respectively fixedly connected to the two rocker arm bodies.
[0008] As a preferred embodiment of this novel double rocker arm landing pole, the inner wall of the sliding sleeve is rotatably connected to two rollers.
[0009] As a preferred embodiment of this novel double rocker arm ground-mounted pole, a base plate is fixedly connected to the lower end face of the lowest standard section.
[0010] As a preferred embodiment of this novel double-rocker arm landing pole, the first servo motor, the second servo motor, and the third servo motor are all worm gear reducers.
[0011] The beneficial effects of this utility model are:
[0012] 1. The hook translation function is realized by adopting a sprocket and chain transmission mechanism. The second servo motor drives the sprocket to drive the chain to move, so that the sliding sleeve slides smoothly along the rocker arm body. The embedded roller design effectively reduces running resistance and realizes flexible adjustment of the hook position, which is highly practical.
[0013] 2. The third servo motor drives the worm gear to drive the turntable to achieve horizontal rotation and has a self-locking function, which meets the hoisting requirements of different working conditions and significantly improves the adaptability and ease of operation. Attached Figure Description
[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0015] Figure 1 This is an overall structural diagram of a novel double-rocker arm landing pole according to this utility model.
[0016] Figure 2 This is a front sectional view of a novel double-rocker arm landing pole according to this utility model.
[0017] Figure 3 This is a top sectional view of the mounting plate of this utility model.
[0018] Figure 4 This is a structural diagram of the sliding sleeve of this utility model.
[0019] The markings in the diagram are: 1. Standard section; 2. Mounting plate; 3. Turntable; 4. Rocker arm body; 5. Sliding sleeve; 6. Hook; 7. Support plate; 8. First shaft; 9. First servo motor; 10. Ear plate; 11. Sprocket; 12. Second servo motor; 13. Chain; 14. Cavity; 15. Second shaft; 16. Worm gear; 17. Worm; 18. Third servo motor; 19. Roller; 20. Steel cable. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0021] Please see Figure 1-4 A novel double-rocker arm landing pole includes multiple standard sections 1 and two rocker arm bodies 4 fixedly connected by bolts. A mounting plate 2 is fixedly connected to the upper end face of the uppermost standard section 1. A turntable 3 is rotatably connected to the upper end face of the mounting plate 2 through an adjustment mechanism. The rocker arm body 4 is rotatably connected to the outer wall of the turntable 3 through a hinge. A sliding sleeve 5 is slidably connected to the outer wall of the rocker arm body 4. A hook 6 is fixedly connected to the lower end face of the sliding sleeve 5. Two ear plates 10 are fixedly connected to both sides of the upper end face of the rocker arm body 4. A sprocket 11 is rotatably connected between the two ear plates 10 on the same side through a coupling. A chain 13 is meshed with the outer walls of the two sprockets 11. A second servo motor 12 with its output end fixedly connected to the sprocket 11 is installed on the outer wall of one of the ear plates 10.
[0022] In this embodiment: the second servo motor 12 is started, which drives one of the sprockets 11 to rotate, thereby driving the chain 13 and the other sprocket 11 to rotate synchronously. The chain 13 further drives the sliding sleeve 5 to move left or right along the rocker arm body 4, thereby driving the hook 6 to move left or right. This makes it easy to adjust the position of the hook 6 according to the lifting needs. Moreover, through the adjustment mechanism and the drive of the turntable 3 to rotate horizontally, the rocker arm body 4 is driven to rotate horizontally, thereby adjusting the horizontal angle of the rocker arm body 4. This is highly practical.
[0023] As a technical optimization of this utility model, the adjustment mechanism includes a cavity 14 opened inside the mounting plate 2, a second rotating shaft 15 fixedly connected to the lower end face of the turntable 3 via a bearing and rotatably connected to the mounting plate 2, the lower end of the second rotating shaft 15 extending into the cavity 14 and fixedly connected to a worm gear 16, a worm 17 rotatably connected to the inner wall of the cavity 14 and meshing with the worm gear 16, and a third servo motor 18 with its output end fixedly connected to the worm 17 mounted on the outer wall of the mounting plate 2.
[0024] In this embodiment: the third servo motor 18 is started, the third servo motor 18 drives the worm gear 17 to rotate, which in turn drives the worm wheel 16 to rotate, the worm wheel 16 further drives the second rotating shaft 15 to rotate, which in turn drives the turntable 3 to rotate, thereby adjusting the horizontal angle of the rocker arm body 4.
[0025] As a technical optimization of this utility model, two symmetrically distributed support plates 7 are fixedly connected to the upper end face of the turntable 3. Two first rotating shafts 8 are rotatably connected between the two support plates 7. Two first servo motors 9 with output ends fixedly connected to the first rotating shaft 8 are installed on the outer wall of one of the support plates 7. Steel cables 20 are fixedly connected to the outer walls of the two first rotating shafts 8. The other ends of the two steel cables 20 are fixedly connected to the two rocker arm bodies 4 respectively.
[0026] In this embodiment: the first servo motor 9 is started, the first servo motor 9 drives the first rotating shaft 8 to rotate, and then pulls the rocker arm body 4 to rotate vertically through the steel cable 20 to carry out the hoisting operation.
[0027] As a technical optimization of this utility model, the inner wall of the sliding sleeve 5 is rotatably connected to two rollers 19.
[0028] In this embodiment, the roller 19 facilitates the reduction of friction between the sliding sleeve 5 and the rocker arm body 4, allowing the sliding sleeve 5 to slide on the outer wall of the rocker arm body 4.
[0029] As a technical optimization of this utility model, a base plate is fixedly connected to the lower end face of the lowest standard section 1.
[0030] In this embodiment: by fixing the base plate to the lower end face of the lowest standard section 1, it is easy to fix the device to the base by fixing bolts.
[0031] As a technical optimization of this utility model, the first servo motor 9, the second servo motor 12 and the third servo motor 18 are all worm gear reducers.
[0032] In this embodiment, by setting the first servo motor 9, the second servo motor 12 and the third servo motor 18 as worm gear reducers, it is convenient to use the self-locking property of the worm gear to rotate and fix the rocker arm body 4, the sliding sleeve 5 and the turntable 3.
[0033] The working principle and usage process of this utility model are as follows: First, the first servo motor 9 is started, driving the first rotating shaft 8 to rotate. This, in turn, causes the rocker arm body 4 to rotate vertically downwards to its lowest position via the steel cable 20. Then, the material to be hoisted is hung on the hook 6 (the hook 6 is equipped with an anti-disengagement device, which is existing technology and will not be detailed here). Next, the first servo motor 9 drives the rocker arm body 4 to rotate vertically upwards, lifting the material. While adjusting the position of the hook 6 on the rocker arm body 4, the second servo motor 12 is started, driving one of the... The rotation of one sprocket 11 drives the chain 13 and another sprocket 11 to rotate synchronously. The chain 13 further drives the sliding sleeve 5 to move left or right along the rocker arm body 4, thereby driving the hook 6 to move left or right. This makes it easy to adjust the position of the hook 6 according to the lifting needs. When adjusting the horizontal angle of the rocker arm body 4, the third servo motor 18 is started. The third servo motor 18 drives the worm gear 17 to rotate, which in turn drives the worm wheel 16 to rotate. The worm wheel 16 further drives the second rotating shaft 15 to rotate, which in turn drives the turntable 3 to rotate, thereby adjusting the horizontal angle of the rocker arm body 4. This method is highly practical.
[0034] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A novel double-rocker arm landing pole, comprising multiple standard sections (1) and two rocker arm bodies (4) fixedly connected by bolts, characterized in that: A mounting plate (2) is fixedly connected to the upper end face of the uppermost standard section (1). A turntable (3) is rotatably connected to the upper end face of the mounting plate (2) through an adjustment mechanism. The rocker arm body (4) is rotatably connected to the outer wall of the turntable (3) through a hinge seat. A sliding sleeve (5) is slidably connected to the outer wall of the rocker arm body (4). A hook (6) is fixedly connected to the lower end face of the sliding sleeve (5). Two ear plates (10) are fixedly connected to both sides of the upper end face of the rocker arm body (4). A sprocket (11) is rotatably connected between the two ear plates (10) on the same side through a coupling shaft. A chain (13) is meshed with the outer walls of the two sprockets (11). A second servo motor (12) with its output end fixedly connected to the sprocket (11) is installed on the outer wall of one of the ear plates (10).
2. The novel double-rocker arm landing pole according to claim 1, characterized in that: The adjustment mechanism includes a cavity (14) opened inside the mounting plate (2). The lower end face of the turntable (3) is fixedly connected to a second rotating shaft (15) which is rotatably connected to the mounting plate (2) via a bearing. The lower end of the second rotating shaft (15) extends into the cavity (14) and is fixedly connected to a worm gear (16). The inner wall of the cavity (14) is rotatably connected to a worm (17) which meshes with the worm gear (16). The outer wall of the mounting plate (2) is equipped with a third servo motor (18) whose output end is fixedly connected to the worm gear (17).
3. A novel double-rocker arm landing pole according to claim 2, characterized in that: The upper surface of the turntable (3) is fixedly connected to two symmetrically distributed support plates (7), and two first rotating shafts (8) are rotatably connected between the two support plates (7). Two first servo motors (9) with output ends fixedly connected to the first rotating shaft (8) are installed on the outer wall of one of the support plates (7). Steel cables (20) are fixedly connected to the outer walls of the two first rotating shafts (8), and the other ends of the two steel cables (20) are fixedly connected to the two rocker arm bodies (4) respectively.
4. A novel double-rocker arm landing pole according to claim 1, characterized in that: The inner wall of the sliding sleeve (5) is rotatably connected to two rollers (19).
5. A novel double-rocker arm landing pole according to claim 1, characterized in that: A base plate is fixedly connected to the lower end face of the standard section (1) located at the bottom.
6. A novel double-rocker arm landing pole according to claim 3, characterized in that: The first servo motor (9), the second servo motor (12) and the third servo motor (18) are all worm gear reducers.