A bolt type hanging basket sling adjusting device

Abstract

This utility model belongs to the technical field of bridge construction equipment, and in particular relates to a bolt-type hanging basket sling adjustment device. It includes an upper crossbeam and a horizontal tie beam mounted on a box girder. The upper crossbeam and the horizontal tie beam are connected to the lower crossbeam via slings. A spreader beam is mounted on the upper crossbeam and the horizontal tie beam, and a hanging basket sling adjustment assembly is mounted on the spreader beam. The hanging basket sling adjustment assembly includes a top plate, a bottom plate, and threaded rods. The bottom plate is mounted on the spreader beam, and several threaded rods are threaded onto the bottom plate. Adjusting nuts are mounted on the upper sections of the threaded rods. The threaded rods pass through the top plate, and the top plate is supported on the adjusting nuts. A first pin is installed on the top plate, passing through a pin hole in the sling and connecting to the sling. Using this bolt-type hanging basket sling adjustment device allows for precise height adjustment, ensuring balanced force on the sling and a high safety factor. It achieves height adjustment in one step, improving safety and efficiency while reducing construction costs.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge construction equipment, and in particular relates to a bolt-type hanging basket sling adjustment device. Background Technology

[0002] With the rapid development of transportation construction in my country, long-span bridges are constantly emerging. Due to their large span capacity and lack of impact on roads or waterways under the bridge, continuous beam cantilever construction is being adopted by more and more projects, playing an irreplaceable role in transportation development and construction.

[0003] During cantilever construction, a hanging basket is required as the construction support structure. The bottom basket, supported by the formwork, is suspended from a triangular or diamond-shaped truss structure set on the bridge deck for pouring segmental beam concrete. Cantilever construction typically involves variable cross-section beams, with each segment having a different height. The steel slings of the suspension structure need to be adjustable within this height range. Current construction methods involve jacking up the steel slings to the design height, then padding the support base with multiple layers of steel plates of appropriate thickness. This method is cumbersome, the stability of multiple steel plates is poor, and the construction safety risk is high. Adjusting by padding with steel plates also suffers from uneven stress distribution, insufficient adjustment precision, and inconvenient operation. Utility Model Content

[0004] In view of the technical problems existing in the background art, the present invention provides a bolt-type hanging basket sling adjustment device.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A bolt-type hanging basket sling adjustment device includes an upper crossbeam and a horizontal tie beam mounted on a box girder. A lower crossbeam is provided on the bottom side of the upper crossbeam and the horizontal tie beam. The upper crossbeam and the horizontal tie beam are connected to the lower crossbeam by a sling. A spreader beam is provided on the upper crossbeam and the horizontal tie beam. A hanging basket sling adjustment assembly is provided on the spreader beam. The sling passes sequentially through the hanging basket sling adjustment assembly, the spreader beam, and the upper crossbeam and the horizontal tie beam, and is connected to the lower crossbeam on the bottom side. The hanging basket sling adjustment assembly includes a top plate, a bottom plate, and lead screws. The bottom plate is mounted on a spreader beam. Several lead screws are threaded onto the bottom plate. Adjusting nuts are provided on the upper sections of the lead screws. The lead screws pass through the top plate, and the top plate is supported on the adjusting nuts. A first pin is installed on the top plate. The first pin passes through the pin hole of the sling and connects to the sling.

[0006] Optionally, a mounting nut is provided on the base plate, the lower section of the lead screw is threadedly connected to the mounting nut, and the bottom end of the lead screw is tightly attached to the base plate.

[0007] Optionally, the top plate is provided with two first ribs at a fixed distance from each other. The first ribs are provided with first semi-circular grooves, and the first pin is disposed in the first semi-circular grooves.

[0008] Optionally, the top plate is provided with a first through slot for the sling to pass through, and the bottom plate is provided with a second through slot for the sling to pass through.

[0009] Optionally, a lifting assembly is provided on the spreader beam. The lifting assembly includes jacks, channel steel, and support blocks. Two jacks are symmetrically arranged on both sides of the hanging basket sling adjustment assembly. The bottom of the jacks is set on the spreader beam. A first T-shaped block is provided on the upper side of each jack. Two channel steels are fitted on the first T-shaped block. The channel steels are set on the upper side of the hanging basket sling adjustment assembly. The sling is set between the two channel steels. Two second T-shaped blocks are fitted on the upper side of the two channel steels. The second T-shaped blocks are symmetrically arranged on both sides of the sling. A support block is provided at the upper end of the second T-shaped block. A second semi-circular groove is provided on the support block. A second pin is provided in the second semi-circular groove. The second pin passes through the pin hole of the sling and connects to the sling.

[0010] Optionally, the channel steel has through holes, and the two channel steels are connected by a third pin.

[0011] Optionally, the slings are connected by a connector, which includes two connecting plates. The upper and lower slings are respectively clamped between the two connecting plates, and the connection is achieved by a fourth pin passing through the connecting plates and the slings.

[0012] Optionally, the bottom side of the sling is connected to the T-shaped hanger, the lower crossbeam is supported on the T-shaped hanger, and the bottom side of the sling is located on the inner side of the T-shaped hanger. The connection between the sling and the T-shaped hanger is achieved by a fifth pin passing through the T-shaped hanger.

[0013] Optionally, the outer side of the mounting nut is provided with several reinforcing ribs, which are welded to the base plate.

[0014] Optionally, the top plate is provided with a plurality of second ribs, which intersect the first ribs perpendicularly.

[0015] This utility model has the following advantages and beneficial effects: This invention employs a bolt-type hanging basket sling adjustment device, which offers the following advantages compared to the steel plate adjustment method: it allows for precise height adjustment, ensuring balanced force on the sling and a high safety factor; it achieves height adjustment in one step; and it is a reusable finished product, formed in one piece without additional components. In summary, the bolt-type adjustment device improves safety and efficiency while reducing construction costs.

[0016] In this invention, the force of the entire adjustment device is evenly distributed by setting up a top plate, a bottom plate, and a screw rod. The sling is lifted and the template is adjusted by using a jack. Then, the screw rod is adjusted and locked. The force on the sling is checked, and the screw rod is tightened where the force is insufficient. By controlling the above steps, the sling can be evenly stressed conveniently and quickly, with a high safety factor.

[0017] In this invention, a lifting assembly is used, with the first T-block and the second T-block used to limit the installation of the channel steel. The three are tightly assembled, and the sling position is adjusted by lifting with a jack. This structure is simple and reliable, and the lifting assembly can be quickly disassembled and assembled. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the bolt-type hanging basket sling adjustment device in this utility model; Figure 2 for Figure 1 A partial enlarged view of the adjustment assembly of the hanging basket; Figure 3 for Figure 1 A magnified view of a portion of the connecting component; Figure 4 for Figure 1 Enlarged view of a section of the T-shaped hanger; Figure 5 This is a structural diagram of the hanging basket sling adjustment assembly and sling in this utility model; Figure 6 for Figure 5 The left view; Figure 7 This is a structural diagram of the hanging basket sling adjustment assembly in this utility model; Figure 8 for Figure 7 The left view; Figure 9 This is a structural diagram of the hanging basket sling adjustment assembly, lifting assembly, and sling in this utility model; Figure 10 This is a side view of the lifting component in this utility model.

[0019] Reference numerals: 1-Box girder, 2-Upper crossbeam and horizontal tie beam, 21-Spreader beam, 3-Sling, 31-Pin hole, 4-Hanging basket sling adjustment assembly, 41-Bottom plate, 411-Second through slot, 42-Top plate, 421-First through slot, 43-Threaded rod, 44-Mounting nut, 45-Adjusting nut, 46-First rib plate, 47-Second rib plate, 48-First semi-circular slot, 49-Stiffening plate, 5-Connecting plate, 51-Fourth pin, 52-Fourth nut, 6-T-shaped hanger, 61-Fifth pin, 62-Fifth nut, 7-Lower crossbeam, 8-First pin, 81-First nut, 9-Jack, 91-Channel steel, 92-Second T-block, 93-Support block, 931-Second semi-circular slot, 94-Second pin, 95-Second nut, 96-Third pin, 97-Third nut, 98-First T-block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Example like Figures 1 to 8 As shown, a bolt-type hanging basket sling adjustment device includes an upper crossbeam and a horizontal connecting beam 2 installed on a box girder 1. A lower crossbeam 7 is installed on the bottom side of the upper crossbeam and the horizontal connecting beam 2. The upper crossbeam and the horizontal connecting beam 2 and the lower crossbeam 7 are connected by a sling 3. A spreader beam 21 is installed on the upper crossbeam and the horizontal connecting beam 21. A hanging basket sling adjustment assembly 4 is installed on the spreader beam 21. The sling 3 passes through the hanging basket sling adjustment assembly 4, the spreader beam 21 and the upper crossbeam and the horizontal connecting beam 2 in sequence, and connects to the lower crossbeam 7 on the bottom side, thereby forming a hanging basket suspension system.

[0023] like Figures 1 to 8As shown, the hanging basket sling adjustment assembly 4 includes a top plate 42, a bottom plate 41, and lead screws 43. The bottom plate 41 is mounted on the flat beam 21, and several lead screws 43 are threaded onto the bottom plate 41. Adjusting nuts 45 are installed on the upper sections of the lead screws 43. The lead screws 43 pass through the top plate 42, and the top plate 42 is supported on the adjusting nuts 45. A first pin 8 is installed on the top plate 42, and the first pin 8 passes through the pin hole 31 of the sling 3 and connects to the sling 3. The hanging basket sling adjustment assembly 4 is used to connect the sling 3 to the upper crossbeam and the horizontal coupling 2, thereby suspending the lower crossbeam 7 on the bottom side.

[0024] In this invention, a bolt-type hanging basket sling adjustment device is used, which can improve safety and efficiency while reducing construction costs.

[0025] In this utility model, the force of the entire adjustment device is evenly distributed by the top plate 42, the bottom plate 41 and the screw rod 43. The template is adjusted by lifting the sling 3 with the jack 9, and then the screw rod 43 is adjusted and locked. The force of the sling 3 is checked, and the screw rod 43 is tightened where the force is insufficient. By controlling the above steps, the sling 3 can be evenly stressed in a convenient and quick manner, with a high safety factor.

[0026] Furthermore, a mounting nut 44 is provided on the base plate 41, and the lower section of the lead screw 43 is threadedly connected to the mounting nut 44, with the bottom end of the lead screw 43 tightly attached to the base plate 41. When the entire bolt-type hanging basket sling adjustment assembly 4 is subjected to downward pressure, the bottom sides of several lead screws 43 directly contact the base plate 41, evenly transmitting the force to the base plate 41, ensuring that the entire bolt-type hanging basket sling 3 adjustment device is evenly stressed. Moreover, the connection between the lead screw 43 and the adjusting nut 45 facilitates the assembly and disassembly of the base plate 41, the top plate 42, and the lead screw 43.

[0027] Furthermore, two first ribs 46 are provided at a fixed distance from the upper end of the top plate 42. Each first rib 46 has a first semi-circular groove 48, and a first pin 8 is disposed within the first semi-circular groove 48. One side of the first pin 8 is threaded and connected to a first nut 81 for locking and limiting. The first pin 8 connects the sling 3 and the bolt-type hanging basket sling adjustment assembly 4.

[0028] Furthermore, several stiffening plates 49 are evenly distributed on the outer side of the mounting nut 44. The stiffening plates 49 are welded to the base plate 41 to ensure that the mounting nut 44 is reliably fixed to the base plate 41.

[0029] Furthermore, the top plate 42 is provided with several second ribs 47, which intersect the first ribs 46 perpendicularly to enhance the rigidity and strength of the top plate 42.

[0030] Furthermore, the top plate 42 is provided with a first through groove 421 for the sling 3 to pass through, and the bottom plate 41 is provided with a second through groove 411 for the sling 3 to pass through, so as to avoid the sling 3.

[0031] like Figure 9 and Figure 10 As shown in the figure, in this utility model, a lifting component is provided on the spreader beam 21 to adjust the height of the sling 3. After the adjustment is completed, the sling 3 is connected to the bolt-type hanging basket sling adjustment component 4. Then, the bolt-type hanging basket sling adjustment component 4 is used for fine adjustment to ensure that the sling 3 is evenly stressed. Finally, the lifting component is removed to complete the height adjustment of the hanging basket.

[0032] like Figure 9 and Figure 10 As shown, the lifting assembly includes jacks 9, channel steel 91, and support blocks 93. Two jacks 9 are symmetrically arranged on both sides of the hanging basket sling adjustment assembly 4. The bottom of the jacks 9 is set on the spreader beam 21. Each jack 9 has a first T-shaped block 98 on its upper side. The first T-shaped block 98 is inverted and used to limit the installation of the two channel steels 91, ensuring that the channel steels 91 are supported on the first T-shaped block 98, thereby limiting the distance between the two channel steels 91.

[0033] like Figure 9 and Figure 10 As shown, two channel steels 91 are fitted onto the first T-block 98. The channel steels 91 are positioned above the hanging basket sling adjustment assembly 4 to avoid collision and interference. The sling 3 is positioned between the two channel steels 91, passing through them. Two second T-blocks 92 are fitted onto the upper sides of the two channel steels 91. The second T-blocks 92 and the first T-block 98 are positioned vertically opposite each other. The second T-blocks 92 are symmetrically positioned on both sides of the sling 3. The second T-blocks 92 can slide on the channel steels 91 to adjust the distance between them and the sling 3. The sling 3 is positioned between the two second T-blocks 92. A support block 93 is provided at the upper end of the second T-block 92. A second semi-circular groove 931 is provided on the support block 93. A second pin 94 is provided in the second semi-circular groove 931. A thread is provided on one side of the second pin 94 and a second nut 95 is connected to it. The second pin 94 passes through the pin hole 31 of the sling 3 and connects to the sling 3.

[0034] In this utility model, the lifting assembly uses the first T-block 98 and the second T-block 92 to limit the installation of the channel steel 91. The three are tightly assembled, which can stably support the sling 3 and the suspension system on the bottom side. The sling 3 can be adjusted in height by lifting with the jack 9. This structure is simple and reliable, and the lifting assembly can be quickly disassembled and assembled.

[0035] Furthermore, the channel steel 91 has through holes, and the second T-block 92 also has corresponding through holes. By sliding the position of the second T-block 92, the two through holes are aligned, and the two channel steels 91 are connected by inserting a third pin 96. One side of the third pin 96 is threaded and connected to a third nut 97, achieving a reliable connection between the channel steel 91 and the second T-block 92. The stability of the lifting assembly is ensured by the mutual limiting installation of the first T-block 98, the second T-block 92, and the channel steel 91.

[0036] like Figure 1 and Figure 3 As shown, in this utility model, the slings 3 are connected by a connector, which includes two connecting plates 5. The upper and lower slings 3 are respectively clamped between the two connecting plates 5. The connection is achieved by a fourth pin 51 passing through the connecting plates 5 and the slings 3. One side of the fourth pin 51 is threaded and connected to a fourth nut 52. This detachable connection method facilitates the connection of multiple slings 3.

[0037] like Figure 1 and Figure 4 As shown, in this invention, the bottom side of the sling 3 is connected to the T-shaped bracket 6, the lower crossbeam 7 is supported on the T-shaped bracket 6, and the bottom side of the sling 3 is located inside the T-shaped bracket 6. A fifth pin 61 passes through the T-shaped bracket 6 and connects to the sling 3. One side of the fifth pin 61 is threaded and connected to a fifth nut 62. The T-shaped bracket 6 provides stable and reliable support and suspension for the lower crossbeam 7, while simultaneously enabling connection to the sling 3.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bolt-type hanging basket sling adjustment device, comprising an upper crossbeam and a horizontal coupling mounted on a box girder, wherein a lower crossbeam is provided on the bottom side of the upper crossbeam and the horizontal coupling, and the upper crossbeam and the horizontal coupling are connected to the lower crossbeam by a sling, characterized in that: A spreader beam is provided on the upper crossbeam and the horizontal connector. A hanging basket sling adjustment assembly is provided on the spreader beam. The sling passes through the hanging basket sling adjustment assembly, the spreader beam and the upper crossbeam and the horizontal connector in sequence, and is connected to the lower crossbeam on the bottom side. The hanging basket sling adjustment assembly includes a top plate, a bottom plate, and lead screws. The bottom plate is mounted on a spreader beam. Several lead screws are threaded onto the bottom plate. Adjusting nuts are provided on the upper sections of the lead screws. The lead screws pass through the top plate, and the top plate is supported on the adjusting nuts. A first pin is installed on the top plate. The first pin passes through the pin hole of the sling and connects to the sling.

2. The bolt-type hanging basket sling adjustment device according to claim 1, characterized in that: The base plate is provided with a mounting nut, and the lower section of the lead screw is threadedly connected to the mounting nut, with the bottom end of the lead screw tightly attached to the base plate.

3. The bolt-type hanging basket sling adjustment device according to claim 1 or 2, characterized in that: Two first ribs are provided at a fixed distance from the upper end of the top plate. The first ribs are provided with first semi-circular grooves, and the first pin is provided in the first semi-circular grooves.

4. The bolt-type hanging basket sling adjustment device according to claim 1, characterized in that: The top plate is provided with a first through slot for the sling to pass through, and the bottom plate is provided with a second through slot for the sling to pass through.

5. The bolt-type hanging basket sling adjustment device according to claim 1, characterized in that: A lifting assembly is installed on the spreader beam. The lifting assembly includes jacks, channel steel, and support blocks. Two jacks are symmetrically arranged on both sides of the hanging basket sling adjustment assembly. The bottom of the jacks is set on the spreader beam. A first T-shaped block is set on the upper side of each jack. Two channel steels are fitted on the first T-shaped block. The channel steels are set on the upper side of the hanging basket sling adjustment assembly. The sling is set between the two channel steels. Two second T-shaped blocks are fitted on the upper side of the two channel steels. The second T-shaped blocks are symmetrically arranged on both sides of the sling. A support block is set at the upper end of the second T-shaped block. A second semi-circular groove is set on the support block. A second pin is set in the second semi-circular groove. The second pin passes through the pin hole of the sling and connects to the sling.

6. The bolt-type hanging basket sling adjustment device according to claim 5, characterized in that: The channel steel has through holes, and the two channel steels are connected by a third pin.

7. The bolt-type hanging basket sling adjustment device according to claim 1, characterized in that: The slings are connected by a connector, which includes two connecting plates. The upper and lower slings are respectively clamped between the two connecting plates and connected by a fourth pin passing through the connecting plates and the slings.

8. The bolt-type hanging basket sling adjustment device according to claim 1, characterized in that: The bottom side of the sling is connected to the T-shaped hanger. The lower crossbeam is supported on the T-shaped hanger. The bottom side of the sling is located inside the T-shaped hanger. The connection between the sling and the T-shaped hanger is achieved by a fifth pin passing through the T-shaped hanger.

9. The bolt-type hanging basket sling adjustment device according to claim 2, characterized in that: The outer side of the mounting nut is evenly distributed with several stiffening plates, which are welded to the base plate.

10. The bolt-type hanging basket sling adjustment device according to claim 3, characterized in that: The top plate is provided with several second ribs, which intersect the first ribs perpendicularly.

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