Movable automatic lifting, positioning and tensioning platform

Abstract

The utility model relates to the field of bridge engineering equipment, in particular to a movable automatic lifting and positioning tensioning platform which comprises a tensioning protection frame, a guide beam, a sliding clamping block, a tensioning jack and a winch. A main body of the tensioning protection frame is of a cuboid structure and is mainly formed by welding four cross beams, four longitudinal beams and four vertical beams. The two guide beams are horizontally fixed to the upper end of the tensioning protection frame in a welded mode. The guide beam is I-shaped steel, a clamping groove horizontally connected with the guide beam in a sliding mode is formed in the sliding clamping block, the winch is fixedly installed at the lower end of the sliding clamping block, and the tensioning jack is installed below the winch through a lifting hook. The device is simplified in structure and convenient to machine, the efficiency and quality of tensioning operation are improved, the construction risk and the labor intensity are reduced, meanwhile, the convenience of construction and the maintainability of equipment are considered, and therefore the tensioning platform has excellent practicability and a wide application range in practical application.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering equipment, specifically to a mobile automatic lifting, positioning, and tensioning platform. Background Technology

[0002] Currently, prestressed beams and slabs are widely used in bridge construction due to their advantages such as reasonable structural design, good structural performance, standardized construction procedures, high production efficiency, and ease of construction management. However, their construction process requires specialized equipment, the technology is relatively complex, and the placement of tensioning equipment is quite cumbersome, with certain dangers present during tensioning.

[0003] With the development of modern bridge engineering, the requirements for efficiency, precision, and safety in precast beam tensioning operations are increasing. Traditional tensioning platforms consisting of hangers and hand-operated hoists are no longer sufficient to meet the needs of modern engineering. Therefore, a mobile, automatically lifting and positioning tensioning platform is needed to improve the efficiency of tensioning operations and enhance construction safety. Utility Model Content

[0004] The purpose of this utility model is to provide a mobile automatic lifting and positioning tensioning platform, which aims to improve construction efficiency, ensure construction safety, enhance adaptability, achieve precise positioning, reduce labor intensity, and save resources through technological innovation, providing a more efficient, safe, and reliable solution for precast beam tensioning construction.

[0005] To address this, this utility model proposes a movable automatic lifting and positioning tensioning platform, comprising: a tensioning protective frame, guide beams, sliding blocks, tensioning jacks, and a winch; the main body of the tensioning protective frame is a cuboid structure, mainly composed of four horizontal beams, four longitudinal beams, and four vertical beams welded together; two guide beams are horizontally fixed to the upper end of the tensioning protective frame by welding; the guide beams are I-beams, the sliding blocks have slots for horizontal sliding connection with the guide beams, the winch is fixedly installed at the lower end of the sliding blocks, and the tensioning jacks are installed below the winch via hooks; wherein, the outer end of the guide beam protrudes beyond one end of the front face of the tensioning protective frame, allowing the tensioning jacks to extend to the end face of the bridge.

[0006] As a preferred technical solution of this application, the tensioning protective frame is provided with longitudinal reinforcing beams and vertical reinforcing beams on the left and right sides respectively; the two ends of the vertical reinforcing beams are welded and fixed to the longitudinal beams on the upper and lower sides.

[0007] As a preferred embodiment of this application, one end of the longitudinal reinforcing beam is welded and fixed to the vertical beam; the other end of the longitudinal reinforcing beam is welded and fixed to the vertical reinforcing beam.

[0008] As a preferred technical solution of this application, the rear side of the tensioning protective frame is provided with a transverse reinforcing beam, which is welded and fixed to the two vertical beams on the rear side.

[0009] As a preferred technical solution of this application, the outer end of the guide beam is provided with a limiting pin.

[0010] As a preferred technical solution of this application, four vertical beams protrude a certain distance from the bottom horizontal beam and the longitudinal beam, and are reinforced and fixed by diagonal bracing.

[0011] As a preferred technical solution of this application, the upper part of the tensioning protective frame is provided with four lifting lugs.

[0012] As a preferred technical solution of this application, several pedals are installed on the vertical beam on the front side of the tensioning protective frame.

[0013] The mobile automatic lifting and positioning tensioning platform provided by this utility model has a simplified structure and is easy to process. It not only improves the efficiency and quality of tensioning operations, but also reduces construction risks and labor intensity. At the same time, it takes into account the convenience of construction and the maintainability of the equipment, making the tensioning platform have excellent practicality and a wide range of applications in actual use.

[0014] In the preferred embodiment of this utility model, the device is mainly used for prestressed tensioning construction of precast beams and slabs. The positioning system, consisting of tensioning protective frame, guide beam, sliding block, and winch, can quickly realize the up-and-down and back-and-forth movement of the jacks, which greatly facilitates the installation and centering of the jacks.

[0015] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a structural schematic diagram of the movable automatic lifting, positioning, and tensioning platform of this utility model;

[0018] Figure 2 This is a front structural diagram of the movable automatic lifting, positioning, and tensioning platform of this utility model;

[0019] Figure 3 This is a side view of the movable automatic lifting, positioning, and tensioning platform of this utility model.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Tensioning protective frame; 2. Guide beam; 3. Winch; 4. Tensioning jack; 5. Sliding block; 11. Horizontal beam; 12. Longitudinal beam; 13. Vertical beam; 14. Lifting lug; 15. Longitudinal reinforcing beam; 16. Transverse reinforcing beam; 17. Vertical reinforcing beam; 18. Diagonal brace; 19. Step; 21. Limit pin; 31. Hook. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-3 As shown, the movable automatic lifting and positioning tensioning platform of this utility model includes: a tensioning protective frame 1, a guide beam 2, a sliding block 5, a tensioning jack 4, and a winch 3. The tensioning protective frame 1 is designed to fully consider the safety, mobility, and stability of tensioning construction, and is welded from high-strength steel to ensure structural stability and strong load-bearing capacity. The guide beam 2 is made of 10# I-beams and cooperates with the sliding block 5 to allow the winch 3 to move on the guide beam 2, ensuring that the tensioning jack 4 is quickly and accurately positioned.

[0024] Specifically, the tensioning protective frame 1 is a rectangular structure, mainly composed of four horizontal beams 11, four longitudinal beams 12 and four vertical beams 13 welded together; the upper part of the tensioning protective frame 1 is provided with four lifting lugs 14, which facilitates the use of mobile cranes to lift it to one end of the bridge via steel cables, thus facilitating the tensioning operation of the precast beams.

[0025] In order to increase the structural strength of the entire tensioning protective frame 1, a transverse reinforcing beam 16 is provided on the rear side of the tensioning protective frame 1, and the transverse reinforcing beam 16 is welded and fixed to the two vertical beams 13 on the rear side.

[0026] Longitudinal reinforcing beams 15 and vertical reinforcing beams 17 are respectively provided on the left and right sides of the tensioning protective frame 1; the two ends of the vertical reinforcing beams 17 are welded and fixed to the upper and lower longitudinal beams 12; one end of the longitudinal reinforcing beams 15 is welded and fixed to the vertical beams 13; the other end is welded and fixed to the vertical reinforcing beams 17; thereby increasing the structural strength of the entire tensioning protective frame 1.

[0027] In addition, several footboards 19 are installed on the vertical beams 13 on the front side of the tensioning protective frame 1, making it convenient for workers to climb to the top for maintenance and adjustment. The four vertical beams 13 protrude a certain distance from the bottom horizontal beams 11 and longitudinal beams 12, and are reinforced and fixed by diagonal braces 18, forming four support legs, raising the tensioning protective frame 1, and at the same time preventing the bottom horizontal beams 11 and longitudinal beams 12 from directly contacting the ground, which has a better anti-corrosion effect and extends service life.

[0028] like Figure 1As shown, two guide beams 2 are horizontally fixed to the upper end of the tensioning protective frame 1 by welding. The guide beams 2 are made of 10# I-beams. The sliding block 5 has a slot and is horizontally slidably connected to the guide beams 2. The winch 3 is fixedly installed at the lower end of the sliding block 5, while the tensioning jack 4 is installed below the winch 3 through the hook 31.

[0029] The outer end of the guide beam 2 protrudes beyond one end of the front face of the tensioning protective frame 1, allowing the tensioning jack 4 to extend to the end face of the bridge for easy coordination with the tensioning cable. Furthermore, the outer end of the guide beam 2 is equipped with a limiting pin 21 to prevent the sliding block 5 from sliding off the guide beam 2.

[0030] The working principle and process of the mobile automatic lifting and positioning tensioning platform of this utility model are briefly described below.

[0031] This utility model's mobile automatic lifting and positioning tensioning platform has a simple structure and is easy to manufacture. It not only improves the efficiency and quality of tensioning operations but also reduces construction risks and labor intensity. Furthermore, it considers ease of construction and equipment maintainability, making the tensioning platform highly practical and widely applicable in real-world applications. It has already been installed and implemented at the No. 1 precast beam yard of the G50 G5011 Xuanwu section reconstruction and expansion project. The entire construction process is efficient, safe, and reliable, significantly improving construction efficiency and quality while reducing labor costs and the risk of safety accidents.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mobile automatic lifting, positioning, and tensioning platform, characterized in that, include: Tensioning protective frame (1), guide beam (2), sliding block (5), tensioning jack (4) and winch (3); The tensioning protective frame (1) is a rectangular structure, mainly composed of four horizontal beams (11), four longitudinal beams (12) and four vertical beams (13) welded together; the two guide beams (2) are horizontally fixed to the upper end of the tensioning protective frame (1) by welding; the guide beams (2) are I-beams, the sliding block (5) has a slot that is horizontally slidably connected to the guide beams (2), the winch (3) is fixedly installed at the lower end of the sliding block (5), and the tensioning jack (4) is installed below the winch (3) by a hook (31); wherein, the outer end of the guide beam (2) protrudes beyond one end of the front end face of the tensioning protective frame (1), so that the tensioning jack (4) can extend to the end face of the bridge.

2. The movable automatic lifting and positioning tensioning platform according to claim 1, characterized in that, The tensioning protective frame (1) is provided with longitudinal reinforcing beams (15) and vertical reinforcing beams (17) on the left and right sides respectively; the two ends of the vertical reinforcing beams (17) are welded and fixed to the longitudinal beams (12) on the upper and lower sides.

3. The movable automatic lifting and positioning tensioning platform according to claim 2, characterized in that, One end of the longitudinal reinforcing beam (15) is welded and fixed to the vertical beam (13); the other end of the longitudinal reinforcing beam (15) is welded and fixed to the vertical reinforcing beam (17).

4. The movable automatic lifting and positioning tensioning platform according to claim 1, characterized in that, The tensioning protective frame (1) is provided with a transverse reinforcing beam (16) on the rear side, and the transverse reinforcing beam (16) is welded and fixed to the two vertical beams (13) on the rear side.

5. The movable automatic lifting and positioning tensioning platform according to claim 1, characterized in that, The outer end of the guide beam (2) is provided with a limiting pin (21).

6. The movable automatic lifting and positioning tensioning platform according to claim 1, characterized in that, Four vertical beams (13) protrude a certain distance from the bottom horizontal beam (11) and the longitudinal beam (12), and are reinforced and fixed by diagonal bracing (18).

7. The movable automatic lifting and positioning tensioning platform according to claim 1, characterized in that, The upper part of the tensioning protective frame (1) is provided with four lifting lugs (14).

8. The movable automatic lifting and positioning tensioning platform according to claim 1, characterized in that, Several pedals (19) are installed on the vertical beam (13) on the front side of the tensioning protective frame (1).

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