A hanging basket, a hanging basket sling adjusting device and a use method

Abstract

This invention relates to the field of bridge engineering technology, and provides a hanging basket, a hanging basket sling adjustment device, and a method of use. The hanging basket includes a basket body and a hanging basket sling adjustment device. The hanging basket sling adjustment device includes a support, slings, a vertical adjustment mechanism, and a locking mechanism. The support includes a support frame, a movable plate, and a fixed plate. The vertical adjustment mechanism is connected to the support, and the movable plate is connected to the vertical adjustment mechanism. The locking mechanism further includes a first locking mechanism and a second locking mechanism. The first locking mechanism is fixed to the movable plate, and the second locking mechanism is connected to the support. A method of use is also provided, in which the slings can be raised and lowered by alternating locking of the first and second locking mechanisms and adjustment by the vertical adjustment mechanism. Using this device and method, automatic control and adjustment of the slings is achieved, effectively improving the reliability of sling locking, enabling automatic perforation of the device, reducing sling adjustment procedures and time, and making the adjustment of the hanging basket more reliable.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering technology, and in particular to a hanging basket, a hanging basket sling adjustment device, and a method of using it. Background Technology

[0002] In bridge construction, cantilever construction using hanging baskets is widely applied to the construction of prestressed concrete continuous beam (rigid frame) bridges and prestressed concrete cable-stayed bridges. A typical hanging basket usually includes a main truss, a rear anchor system, a suspension system, a bottom formwork platform system, a formwork system, and a traveling system. The suspension system, as the main force-transferring component, transfers the dead load generated by the self-weight of the beam segment to be cast and the bottom formwork platform system, as well as the live load from personnel and machinery on the work platform, to the upper crossbeam of the hanging basket. According to national laws and regulations, the front lifting components of the suspension system currently use steel slings. The steel slings and the upper crossbeam are connected by steel pins, and the slings are lifted using a spreader beam and jacks. Fixing is achieved by drilling holes in the slings and using pins through these holes.

[0003] Existing hanging basket lifting devices require specialized personnel to operate the lifting and locking of the device, which is a very time-consuming and complex process. In particular, when adjusting the steel pins, it is usually necessary to use supports before adjustment, but there is a risk of falling due to the support steel plates being too high and the supports being unstable. Therefore, how to simplify the adjustment process of the hanging basket and improve the accuracy and reliability of the locking device has been a research direction in the engineering field in recent years. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of inconvenience in manual operation when using hydraulic jacks to lift slings in the prior art, and the risk of falling due to excessively high support plates caused by the use of multiple layers of steel plates to support the sling steel pins. The invention provides a hanging basket, a hanging basket sling adjustment device, and a method of use.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A hanging basket strap adjustment device includes a bracket, a strap, a vertical adjustment mechanism, and a locking mechanism. The bracket is provided with a movable plate and a fixed plate. The vertical adjustment mechanism is connected to the bracket through the fixed plate. The movable plate is connected to the movable end of the vertical adjustment mechanism and slidably connected to the bracket. The locking mechanism further includes a first locking mechanism and a second locking mechanism. The first locking mechanism is fixed to the movable plate, and the second locking mechanism is fixedly connected to the top of the bracket. Both the first locking mechanism and the second locking mechanism can lock the strap. The strap can be raised and lowered under the drive of the vertical adjustment mechanism through the first locking mechanism.

[0007] The hanging basket sling adjustment device of the present invention includes a bracket, a sling, a vertical adjustment mechanism, and a locking mechanism. The bracket is fixed to an existing structure and is a frame structure. A movable plate and a fixed plate are provided in the middle of the frame. The vertical adjustment mechanism is connected to the bracket frame through the fixed plate. The movable plate is connected to the top of the vertical adjustment mechanism and slidably connected to the bracket. The locking mechanism is fixed to the upper part of the bracket and is used to automatically fix the sling. The lifting or lowering of the hanging basket sling is achieved by raising or lowering the lead screw.

[0008] As a preferred embodiment of the present invention, the vertical adjustment mechanism includes a lead screw, a lead screw nut, and a first driver. The lead screw is vertically arranged and meshes with the lead screw nut. The lead screw nut is rotatably connected to the fixed plate. The lead screw is used to drive the movable plate to move. The first driver is rotatably connected to the lead screw nut.

[0009] A bearing is provided between the lead screw nut and the fixed plate, enabling rotatable connection with the bracket; the lead screw meshes with the lead screw nut, allowing the lead screw nut to rotate under the drive of the driver; a transmission device, such as a worm gear, gear, etc., can also be provided between the driver and the lead screw nut to drive the lead screw to rotate; a bearing is also provided between the movable plate and the lead screw to ensure that the movable plate only moves vertically when the lead screw rotates; the first driver includes, but is not limited to, power equipment such as a motor.

[0010] As a preferred embodiment of the present invention, the transmission device employs a worm gear and a worm. The worm gear is sleeved on the outside of the lead screw nut, and the worm is connected to the first driver. The worm gear and the worm mesh with each other, enabling the rotation of the first driver to be transmitted to the lead screw nut.

[0011] The worm gear is sleeved on the outside of the lead screw nut, enabling the lead screw nut to rotate at the same speed as the worm gear. The worm is laterally connected to the support frame through a bearing. The worm is connected to the first driver. Through the meshing of the worm gear and the worm, the rotational power of the first driver is transmitted to the lead screw nut to rotate, thereby driving the lead screw to rotate.

[0012] As a preferred embodiment of the present invention, the first driver is further connected to a reducer and a coupling. The reducer is disposed between the coupling and the first driver and is connected to them respectively. The vertical adjustment mechanism is connected to the output end of the reducer through the coupling. The first driver drives the lead screw nut to rotate through the transmission device, so that the lead screw rises and falls with the rotation of the lead screw nut.

[0013] The coupling connects the first driver and the reducer to achieve synchronous rotation. It also prevents the lead screw from bearing excessive load, providing overload protection. The transmission device is connected to the first driver via the coupling and the reducer. The first driver smoothly drives the transmission device, which is fixed to the outside of the lead screw nut, causing the lead screw nut to rotate, thus converting the power of the first driver into rotation to raise and lower the lead screw.

[0014] As a preferred embodiment of the present invention, the support frame has a through hole at the center of both the top and bottom, and the lead screw and the movable plate also have a through hole at their centers, through which the sling can pass.

[0015] The maximum weight that the entire adjustment device can bear is connected to the bottom of the sling, which passes through the through hole, ensuring that the main stress point of the adjustment device is in the center position, thus preventing uneven stress and tipping over when the sling is used to fix the heavy object.

[0016] As a preferred embodiment of the present invention, the vertical adjustment mechanism is a jack and a second driver. The jack is vertically arranged and fixedly connected to the fixed plate. The movable end of the jack is connected to the movable plate, and the second driver is connected to one side of the jack.

[0017] The second driver includes, but is not limited to, power equipment such as motors and electric motors.

[0018] As a preferred embodiment of the present invention, the vertical adjustment mechanism is a jack and a second driver, the jack being fixedly connected inside the bracket, and the second driver being connected to one side of the jack.

[0019] As a preferred embodiment of the present invention, the first locking mechanism includes a first mounting bracket, a first driving device and a first locking device, the first locking mechanism being fixedly connected to the upper part of the movable plate via the first mounting bracket, and the first driving device being mounted on the upper part of the first mounting bracket; the second locking mechanism includes a second mounting bracket, a second driving device and a second locking device, the second mounting bracket being fixedly connected to the top of the bracket.

[0020] The first locking mechanism is fixed to the movable plate via the first mounting bracket, thus allowing it to rise and fall together with the lead screw. The second locking mechanism is fixed to the top of the upper sealing plate via the second mounting bracket. The first locking device locks or releases the sling by opening and closing the first driving device, and the second locking device locks or releases the sling by opening and closing the second driving device. The alternating locking and releasing of the first and second locking devices, driven by the lead screw, achieves the raising and lowering of the sling. Supports are also provided below the first and second locking devices to support them, preventing bending moments and displacement when lifting the sling, which would affect the service life of the first and second locking devices.

[0021] As a preferred embodiment of the present invention, the sling is vertically arranged and has a plurality of limiting holes along its length. The limiting holes can respectively cooperate with the first locking mechanism and the second locking mechanism. The sling passes through an existing component, and a hanging basket is connected to a section of the sling below the existing component.

[0022] The sling is provided with multiple equidistant limiting holes so that the first locking mechanism and the second locking mechanism can reliably lock, fix, lift and lower through these limiting holes, reducing the risk of falling due to unstable support compared to existing support steel plate technology.

[0023] The present invention also provides an improvement to the method of using the hanging basket strap adjustment device, comprising the following steps:

[0024] S1. With the first locking mechanism in the unlocked state, adjust the second locking mechanism to lock the sling.

[0025] S2. Adjust the vertical adjustment device and lower the movable plate; the first locking mechanism moves down with the movable plate.

[0026] S3. Adjust the first locking mechanism to lock the sling, and adjust the second locking mechanism to unlock it.

[0027] S4. Adjust the vertical adjustment device and move the movable plate upward. The first locking mechanism moves upward with the movable plate, thereby lifting the sling.

[0028] S5. Adjust the second locking mechanism to lock the sling, and adjust the first locking mechanism to unlock it.

[0029] S6. Repeat steps S1 to S5 until the sling is raised to the designated position;

[0030] The lowering of a hanging basket sling adjustment device includes the following steps:

[0031] A1. The first locking mechanism is used to lock the sling, and the second locking mechanism is in an unlocked state.

[0032] A2. Adjusting the vertical adjustment device causes the movable plate to move downwards. The first locking mechanism moves downwards with the movable plate, thereby causing the sling to descend.

[0033] A3. Adjust the second locking mechanism to lock the sling, and adjust the first locking mechanism to unlock it.

[0034] A4. Adjust the vertical adjustment device and move the movable plate upward, thereby moving the first locking mechanism upward.

[0035] A5. Repeat steps A1 to A4 until the sling is lowered to the designated position.

[0036] The method of using the hanging basket sling adjustment device involves alternately locking the sling with the first locking device and the second locking device, and raising and lowering the sling under the control of the vertical adjustment device.

[0037] The present invention also provides a hanging basket, including a hanging basket strap adjustment device, with the hanging basket body connected below the strap.

[0038] The hanging basket and the sling are fixedly connected, and the hanging basket can move up and down as the sling is raised and lowered, which can easily meet the construction needs.

[0039] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0040] 1. It can realize automatic lifting and lowering control of slings, solving the problem of inconvenience of manual operation when using hydraulic jacks to lift slings in existing technologies.

[0041] 2. It has a lift height that can be set and adjusted, and an automatic locking function, effectively solving the problem of existing manual operation.

[0042] 3. It can replace the existing method of supporting the lifting steel pins by filling multiple layers of steel plates, which improves construction efficiency and greatly reduces the safety risk of falling due to the support steel plates being too high and unstable.

[0043] 4. By using the hanging basket sling adjustment device on multiple slings, the synchronous lifting control of multiple slings can be achieved, solving the problem of traditional manual operation, adjustment and observation construction methods, and reducing the working time for adjusting the slings. Attached Figure Description

[0044] Figure 1This is a schematic diagram of a hanging basket sling adjustment device.

[0045] Figure 2 Right view of a hanging basket sling adjustment device;

[0046] Figure 3 yes Figure 2 AA cross-section view;

[0047] Figure 4 yes Figure 2 BB cross-section;

[0048] Icons: 1-Bracket; 11-Bracket frame; 12-Moving plate; 13-Fixed plate; 2-Helper; 3-Vertical adjustment mechanism; 31-Lead screw; 32-Transmission device; 33-Coupling; 34-Reducer; 35-First driver; 36-Lead screw nut; 4-Locking mechanism; 41-First locking mechanism; 411-First locker; 412-First drive device; 413-First mounting bracket; 42-Second locking mechanism; 421-Second locker; 422-Second drive device; 423-Second mounting bracket. Detailed Implementation

[0049] The present invention will now be described in detail with reference to the accompanying drawings.

[0050] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0051] Example 1

[0052] like Figure 1As shown in Figure 4, the basket suspension strap adjustment device adopted in this invention includes a bracket 1, a suspension strap 2, a vertical adjustment mechanism 3, and a locking mechanism 4. The bracket 1 is fixed to an existing component by bolts. As a preferred method, the bracket 1 is composed of a bracket frame 11, a movable plate 12, and a fixed plate 13 to facilitate assembly and ensure stability. In the prior art, steel plates are used to adjust the suspension strap, which makes the adjustment operation difficult and poses a risk of basket tipping over. Automatic suspension strap adjustment is beneficial for operation and increases safety. The sling 2 is secured using the locking mechanism 4, which includes a first locking mechanism 41 and a second locking mechanism 42. These two locking mechanisms allow for alternating locking of the sling 2, facilitating its raising and lowering. The first locking mechanism 41 comprises a first mounting bracket 413, a first driving device 412, and a first pin 411, welded to the movable plate 12. The second locking mechanism 42 comprises a second mounting bracket 423, a second driving device 422, and a second pin 421, welded to the upper part of the bracket 1 frame. When the first pin 411 and the second pin 421 lock the sling 2, a large bending moment is applied at these points. For safety and durability, a support is added at this location. Driven by the motor 35, the worm gear drives the worm wheel to rotate. The lead screw nut 36 rotates with the worm wheel, causing the lead screw to rotate, allowing it to move up and down due to rotation.

[0053] As a preferred embodiment, the vertical adjustment mechanism 3 can use a lead screw 31, a lead screw nut 36, and a motor 35 to lift the sling 2. The lead screw nut 36 is rotatably connected to the fixed plate 13 through multi-layer bearings and can be fixed inside the support frame 11. The movable plate 12 is rotatably connected to the top of the lead screw 31 through bearings and is slidably connected to the support frame 11. To ensure the stability and safety of the entire device, the support frame 1 and the lead screw 31 are provided with a through hole at the center position to accommodate the sling 2. The sling 2 can pass through this through hole and the hollow structure to ensure that the stress point of the entire device is in the center position, avoiding uneven stress and overturning.

[0054] Example 2

[0055] The difference from Embodiment 1 is that in this embodiment, the vertical adjustment mechanism uses a jack and a motor. The jack is fixed inside the support frame 11, and the motor is welded to the fixed plate 13. The first locking mechanism 41 is welded to the top of the jack through the movable plate 12. The motor controls the hydraulic pressure of the jack to complete the lifting and lowering, so that the first locking mechanism 41 can be lifted and lowered accordingly.

[0056] Example 3

[0057] Based on Example 1, a method for using a hanging basket sling adjustment device is as follows:

[0058] Lifting a basket sling adjustment device includes the following steps:

[0059] S1. Adjust the first pin 411 in the first locking mechanism 41 to the retracted state and the second pin 421 in the second locking mechanism 42 to the extended state, passing through the corresponding limiting hole to support the sling 2, so as to ensure that the position of the sling 2 is locked during construction and will not fall.

[0060] S2. By driving the motor 35 to rotate, the worm gear rotates under the drive of the reducer 34 and the coupling 33. The lead screw nut 36 rotates through meshing. The lead screw nut 36, which is connected to the lead screw nut 36, begins to rotate. The lead screw 31 rotates and moves down, driving the movable plate 12 to move down to the top of the lead screw nut 36.

[0061] S3. By driving the first driving device 412, the first pin 411 is controlled to extend, pass through the corresponding limiting hole on the sling 2, and remain in the current state; by driving the second driving device 422, the second pin 421 is controlled to retract from the corresponding limiting hole on the sling 2.

[0062] S4. By starting the motor 35 and rotating it in the reverse direction of the motor 35 in step two, the worm gear rotates under the drive of the reducer 34 and the coupling 33. Through meshing, the lead screw nut 36 rotates. The lead screw nut 36, which is connected to the lead screw nut 36, begins to rotate. The lead screw 31 then meshes and rotates and moves upward, driving the movable plate 12 to move upward. The first locking mechanism 41 moves upward along with the lead screw 31. Since the first pin 411 is pinned to the sling 2, the sling 2 is driven to rise together.

[0063] S5. After the sling 2 is lifted into position, the second pin 421 extends out, passes through the corresponding limiting hole on the sling 2, keeps the sling 2 locked, unlocks the first pin 411, and completes one lifting of the sling of the basket.

[0064] S6. Repeat S1 to S5 until the sling 2 is raised to the designated position required for construction.

[0065] The lowering of a hanging basket sling adjustment device includes the following steps:

[0066] A1. Before the sling 2 is lifted, the first pin 411 in the first locking mechanism 41 is in the retracted state, and the second pin 421 in the second locking mechanism 42 is in the extended state, supporting the sling 2 to ensure that the position of the sling 2 is locked during construction and that it will not fall.

[0067] A2. When it is necessary to lift the sling 2, the motor 35 is driven to rotate, and the worm gear rotates under the drive of the reducer 34 and the coupling 33. The lead screw nut 36 rotates through the meshing action. The lead screw nut 36, which is connected to the lead screw nut 36, begins to rotate. The lead screw 31 rotates and moves down, driving the movable plate 12 to move down to the top of the lead screw nut 36.

[0068] A3. By driving the second driving device 412, the second pin 421 is controlled to extend, pass through the corresponding limiting hole on the sling 2, and maintain the current state; by driving the first driving device 412, the first pin 411 is controlled to retract from the corresponding limiting hole on the sling 2.

[0069] A4. When lifting the sling 2, the motor 35 is driven to rotate, and the worm gear rotates under the drive of the reducer 34 and the coupling 33. The lead screw nut 36 rotates through meshing. The lead screw nut 36, which is connected to the lead screw nut 36, begins to rotate. The lead screw 31 rotates and moves down, driving the movable plate 12 to move down to the top of the lead screw nut 36.

[0070] A5. Repeat A1 to A4 until the sling 2 is lowered to the designated position required for construction.

[0071] Example 4

[0072] This embodiment provides a hanging basket, which includes a hanging basket sling adjustment device as described in Embodiment 1 or 2 above. The height of the hanging basket is adjusted by at least two of the hanging basket sling adjustment devices. In practical applications, the hanging basket is connected to the lower part of the sling 2, and the multiple hanging basket sling adjustment devices complete the raising and lowering of the hanging basket by synchronous adjustment.

[0073] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hanging basket strap adjustment device, characterized in that, The device includes a bracket (1), a sling (2), a vertical adjustment mechanism (3), and a locking mechanism (4). The bracket (1) includes a bracket frame (11), a movable plate (12), and a fixed plate (13). The vertical adjustment mechanism (3) is connected to the bracket (1) through the fixed plate (13). The movable plate (12) is connected to the movable end of the vertical adjustment mechanism (3) and is slidably connected to the bracket (1). The locking mechanism (4) also includes a first locking mechanism (41) and a second locking mechanism (42). The first locking mechanism (41) is fixed to the movable plate (12), and the second locking mechanism (42) is fixedly connected to the top of the bracket (1). Both the first locking mechanism (41) and the second locking mechanism (42) can lock the sling (2). The sling (2) can be raised and lowered under the drive of the vertical adjustment mechanism (3) through the first locking mechanism (41).

2. The basket suspension strap adjustment device according to claim 1, characterized in that, The vertical adjustment mechanism (3) includes a lead screw (31), a lead screw nut (36), a transmission device (32), and a first driver (35). The lead screw (31) is vertically arranged and meshes with the lead screw nut (36). The lead screw nut (36) is rotatably connected to the fixed plate (13). The lead screw (31) is used to drive the movable plate (12) to move. The first driver (35) is rotatably connected to the lead screw nut (36) through the transmission device (32).

3. The basket suspension strap adjustment device according to claim 2, characterized in that, The transmission device (32) uses a worm gear and a worm. The worm gear is sleeved on the outside of the lead screw nut (36), and the worm is connected to the first driver (35). The worm gear and the worm mesh with each other and can transmit the rotation of the first driver (35) to the lead screw nut (36).

4. The basket suspension strap adjustment device according to claim 2, characterized in that, The first driver (35) is also connected to a reducer (34) and a coupling (33). The reducer (34) is located between the coupling (33) and the first driver (35) and is connected to them respectively. The transmission device (32) is connected to the output end of the reducer (34) through the coupling (33). The first driver (35) drives the lead screw nut (36) to rotate through the transmission device (32), so that the lead screw (31) rises and falls with the rotation of the lead screw nut (36).

5. The basket suspension strap adjustment device according to claim 2, characterized in that, The support frame (11) has a through hole at the center of its top and bottom, and the lead screw (31) and the movable plate (12) also have a through hole at their centers. The sling (2) can pass through the through hole.

6. The basket suspension strap adjustment device according to claim 1, characterized in that, The vertical adjustment mechanism (3) consists of a jack and a second driver. The jack is vertically arranged and fixedly connected to the fixed plate (13). The movable end of the jack is connected to the movable plate (12), and the second driver is connected to one side of the jack.

7. A hanging basket sling adjustment device according to any one of claims 1 to 6, characterized in that, The first locking mechanism (41) includes a first mounting bracket (413), a first driving device (412), and a first locking device (411). The first locking mechanism (41) is fixedly connected to the upper part of the movable plate (12) through the first mounting bracket (413), and the first driving device (412) is installed above the first mounting bracket (413). The second locking mechanism (42) includes a second mounting bracket (423), a second driving device (422), and a second locking device (421). The second mounting bracket (423) is fixedly connected to the top of the bracket (1).

8. The basket suspension strap adjustment device according to claim 7, characterized in that, The sling (2) is vertically arranged and has multiple limiting holes along its length. The limiting holes can cooperate with the first lock (411) and the second lock (421) respectively. The sling (2) is inserted into an existing component.

9. A method of using a hanging basket strap adjustment device, characterized in that, The lifting method using the basket sling adjustment device as described in any one of claims 1 to 8 includes the following steps: S1. With the first locking mechanism (41) in the unlocked state, adjust the second locking mechanism (42) to lock the sling (2). S2. Adjust the vertical adjustment mechanism (3) and drive the movable plate (12) down. The first locking mechanism (41) moves down with the movable plate (12). S3. Adjust the first locking mechanism (41) to lock the sling (2), and adjust the second locking mechanism (42) to unlock it. S4. Adjust the vertical adjustment mechanism (3) and move the movable plate (12) upward. The first locking mechanism (41) moves upward with the movable plate (12), thereby lifting the sling (2). S5. Adjust the second locking mechanism (42) to lock the sling (2), and adjust the first locking mechanism (41) to unlock. S6. Repeat steps S1 to S5 until the sling (2) is raised to the designated position.

10. A method of using a hanging basket strap adjustment device, characterized in that, The descent of a hanging basket sling adjustment device as described in any one of claims 1 to 8 comprises the following steps: A1. The first locking mechanism (41) is used to lock the sling (2), and the second locking mechanism (42) is in the unlocked state. A2. Adjusting the vertical adjustment mechanism (3) causes the movable plate (12) to move downwards, and the first locking mechanism (41) moves downwards along with the movable plate (12), thereby causing the sling (2) to descend. A3. Adjust the second locking mechanism (42) to lock the sling (2), and adjust the first locking mechanism (41) to unlock it. A4. Adjust the vertical adjustment mechanism (3) and move the movable plate (12) upward, thereby moving the first locking mechanism (41) upward. A5. Repeat steps A1 to A4 until the sling (2) is lowered to the designated position.

11. A hanging basket, characterized in that, The basket includes a basket sling adjustment device as described in any one of claims 1 to 8, wherein the basket body is connected below the sling (2).

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