Temporary support fine adjustment device for steel box girder erection construction
By designing a temporary support fine-tuning device including rotating gears and driven gears, the problem of difficulty in precise adjustment of height in traditional steel box girder frame facilities is solved, and efficient use of materials and protection of steel box girders are achieved.
Patent Information
- Application Number
- CN202421764809.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-24
AI Technical Summary
During the steel box girder frame construction, traditional welding and adjusting steel pipes are difficult to accurately control the height, resulting in waste of materials and damage to the top of the steel pipe facing the bottom of the steel box girder.
A temporary support fine-tuning device is designed, including a support base plate, a support top plate and a connecting column. The threaded cylinder is driven to rotate by rotating gears and driven gears, so as to achieve the rise or decrease of the hoist plate, thereby adjusting the support height.
Accurate adjustment of the support height of the steel box girder is achieved, reducing material waste, avoiding damage to the top of the steel pipe facing the bottom of the steel box girder, and improving the reuse rate of the steel pipe.
Smart Images
Figure CN222909559U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction process equipment, in particular to a fine-tuning device for temporary supports in the erection construction of steel box girders. Background Technique
[0002] At present, during the construction process of steel box girder erection, the main method to adjust the temporary support is to weld adjustment steel pipes. After measuring the elevation of the beam bottom, cut and supplement the steel pipes according to actual requirements to make the temporary support reach the established height, and then carry out the erection of the steel box girder. However, in this construction process, the biggest problem is that it is difficult to control the height of the adjustment steel pipes. Even if the final height can be adjusted accurately, a large amount of cutting and supplementing is required, which is time-consuming and laborious. The top surface of the steel pipe will also cause damage to the bottom of the steel box girder; at the same time, the reuse rate of the used steel pipes is low, and material waste is serious. Content of the Utility Model
[0003] In order to solve the above problems of the prior art, the utility model provides a fine-tuning device for temporary supports in the erection construction of steel box girders, which solves the problems of material waste and non-reusability caused by continuous cutting of steel pipes in the traditional technology, and at the same time solves the problem of damage to the bottom of the steel box girder caused by the top surface of the steel pipe.
[0004] To achieve the above object, the utility model provides the following technical solution: A fine-tuning device for temporary supports in the erection construction of steel box girders, including a support bottom plate and a support top plate. A connecting column is fixedly connected between the support bottom plate and the support top plate. A rotating gear is sleeved and rotatably connected at a position of the connecting column close to the support top plate. Several driven gears are meshed on the circumferential side of the rotating gear. The driven gears are rotatably connected to the bottom surface of the support top plate, and a threaded cylinder is fixedly connected to the upper end of the driven gear. The threaded cylinder passes through the support top plate and is threadedly connected to a jacking plate arranged at the upper end of the support top plate.
[0005] With the above structural design, the device supports at the bottom of the steel box girder. By rotating the rotating gear, the driven gears meshed with the rotating gear are driven to rotate, and then the threaded cylinder is driven to rotate. Since the threaded cylinder is threadedly connected to the jacking plate, the jacking plate will rise or fall with the rotation of the threaded cylinder, and the support height of the steel box girder is adjusted on the premise of maintaining stable support.
[0006] Preferably, a rotating rod is installed between the support top plate and the support bottom plate. The upper end and the lower end of the rotating rod are respectively rotatably connected to the support bottom plate and the support top plate. A driving gear is fixedly sleeved at the upper end of the rotating rod, and the driving gear is meshed with the rotating gear.
[0007] With the above structural design, by rotating the rotating rod to drive the driving gear to rotate, and then driving the rotating gear meshed with the driving gear to rotate, the support height of the steel box girder is adjusted.
[0008] Preferably, the upper end of the rotating rod is cylindrical and is adapted to the inner diameter of the driving gear, and the lower end of the rotating rod is hexagonal prism-shaped.
[0009] With the above structural design, the hexagonal prism shape of the lower end of the rotating rod facilitates the use of tools such as wrenches to clamp and rotate the rotating rod.
[0010] Preferably, a rubber cushion layer is fixedly connected to the upper surface of the jacking plate.
[0011] With the above structural design, the rubber cushion layer provided on the jacking plate is in direct contact with the steel box girder placed thereon, protecting the steel box girder structure and avoiding damage to the steel box girder.
[0012] Preferably, several fixing bolts are threadedly connected to the support bottom plate.
[0013] With the above structural design, the support bottom plate is fixed to the support system of the steel box girder through bolt connection, with stable connection, convenient disassembly, and easy reuse in the later stage.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] By rotating the rotating rod to drive the driving gear to rotate, and then driving the rotating gear meshing with the driving gear to rotate, driving the driven gear meshing with the rotating gear to rotate, and then driving the threaded cylinder to rotate. Since the threaded cylinder is threadedly connected to the jacking plate, the jacking plate will rise or fall with the rotation of the threaded cylinder, realizing the adjustment of the support height of the steel box girder while maintaining stable support. At the same time, the rubber cushion layer provided on the jacking plate is in direct contact with the steel box girder placed thereon, protecting the steel box girder structure and avoiding damage to the steel box girder. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the present utility model;
[0017] Figure 2 is a partial sectional view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figure 1-2, the present utility model provides a technical solution: a temporary support fine-tuning device for steel box girder erection construction, including a support bottom plate 1 and a support top plate 2. Both the support bottom plate 1 and the support top plate 2 are cubic structures. A connecting column 3 is welded between the support bottom plate 1 and the support top plate 2. A rotating gear 4 is sleeved and rotatably connected at a position of the connecting column 3 close to the support top plate 2. Four driven gears 5 are meshed on the circumferential side of the rotating gear 4. The driven gears 5 are rotatably connected to the bottom surface of the support top plate 2. The driven gears 5 are located at the four corners of the support top plate 2, and a threaded cylinder 11 is fixedly connected to the upper end of the driven gear 5. The threaded cylinder 11 passes through the support top plate 2 and is threadedly connected to a jacking plate 6 arranged at the upper end of the support top plate 2. The device supports at the bottom of the steel box girder. By rotating the rotating gear 4, the driven gears 5 meshed with the rotating gear 4 are driven to rotate, and then the threaded cylinder 11 is driven to rotate. Since the threaded cylinder 11 is threadedly connected to the jacking plate 6, the jacking plate 6 will rise or fall with the rotation of the threaded cylinder 11, and the support height of the steel box girder can be adjusted on the premise of maintaining stable support.
[0020] A rotating rod 8 is installed between the support top plate 2 and the support bottom plate 1. The upper end and the lower end of the rotating rod 8 are respectively rotatably connected to the support bottom plate 1 and the support top plate 2. A driving gear 12 is fixedly sleeved on the upper end of the rotating rod 8. The driving gear 12 is meshed with the rotating gear 4. By rotating the rotating rod 8, the driving gear 12 is driven to rotate, and then the rotating gear 4 meshed with the driving gear 12 is driven to rotate, so as to realize the adjustment of the support height of the steel box girder.
[0021] The upper end of the rotating rod 8 is in a cylindrical shape matching the inner diameter of the driving gear 12, and the lower end of the rotating rod 8 is in a hexagonal prism shape. The lower end of the rotating rod 8 being in a hexagonal prism shape is convenient for using tools such as wrenches to clamp and rotate the rotating rod.
[0022] A rubber cushion layer 7 is fixedly connected to the upper surface of the jacking plate 6. The rubber cushion layer 7 arranged on the jacking plate is in direct contact with the steel box girder placed thereon, protecting the structure of the steel box girder and avoiding damage to the steel box girder.
[0023] A plurality of fixing bolts 9 are threadedly connected to the support bottom plate 1. The support bottom plate 1 is fixed to the support system of the steel box girder through bolt connection, with firm connection and convenient disassembly, facilitating later reuse.
[0024] Working principle: The construction worker uses a wrench to hold and rotate the rotating 8. The rotating rod 8 drives the driving gear 12 to rotate, and then drives the rotating gear 4 meshing with the driving gear 12 to rotate. Subsequently, it drives the driven gear 5 meshing with the rotating gear 4 to rotate, and then drives the threaded cylinder 11 to rotate. Since the threaded cylinder 11 is threadedly connected to the jacking plate 6, the jacking plate 6 will rise or fall with the rotation of the threaded cylinder 11, and the support height of the steel box girder can be adjusted on the premise of maintaining stable support.
[0025] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A temporary support fine-tuning device for steel box girder erection construction, characterized in that: The invention comprises a supporting bottom plate (1) and a supporting top plate (2), wherein a connecting column (3) is fixedly connected between the supporting bottom plate (1) and the supporting top plate (2), wherein a rotating gear (4) is sleeved and rotatably connected to the connecting column (3) at a position close to the supporting top plate (2), wherein a plurality of driven gears (5) are meshed on the circumference of the rotating gear (4), wherein the driven gear (5) is rotatably connected to the bottom surface of the supporting top plate (2), and a threaded barrel (11) is fixedly connected to the upper end of the driven gear (5), wherein the threaded barrel (11) passes through the supporting top plate (2) and is threadably connected to a lifting plate (6) arranged at the upper end of the supporting top plate (2).
2. A temporary support fine-tuning device for steel box girder erection construction according to claim 1, characterized in that: A rotating rod (8) is installed between the supporting top plate (2) and the supporting bottom plate (1); the upper end and the lower end of the rotating rod (8) are rotatably connected to the supporting bottom plate (1) and the supporting top plate (2) respectively; a driving gear (12) is fixedly sleeved on the upper end of the rotating rod (8); and the driving gear (12) is meshed with the rotating gear (4).
3. The temporary support fine-tuning device for steel box girder erection construction according to claim 2 is characterized by: The upper end of the rotating rod (8) is in the shape of a cylinder matching the inner diameter of the driving gear (12), and the lower end of the rotating rod (8) is in the shape of a hexagonal prism.
4. The temporary support fine-tuning device for steel box girder erection construction according to claim 1 is characterized by: A rubber cushion layer (7) is fixedly connected to the upper surface of the lifting plate (6).
5. The temporary support fine-tuning device for steel box girder erection construction according to claim 1 is characterized by: A plurality of fixing bolts (9) are threadedly connected to the supporting base plate (1).