Adjustable pier top work type steel platform
By designing an adjustable pier-top working steel platform and utilizing adjustable hanging legs and locking components, the cost and safety hazards caused by pre-embedded parts in existing technologies have been solved, enabling rapid installation and dismantling and ensuring the safety and efficiency of bridge construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRCC HARBOR & CHANNEL ENG BUREAU GRP
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-14
AI Technical Summary
The existing bridge pier top construction platform has a complex structure, requires pre-embedded parts, which increases costs and safety hazards, and affects the appearance of the pier. The high-altitude operation is also labor-intensive.
Design an adjustable steel platform for working on the pier top, using adjustable hanging legs and locking components to avoid pre-embedded parts. The platform adapts to different pier top sizes by extending and retracting the hanging legs, and combines tilt sensors and signal controllers to ensure construction safety.
It achieves a simple structural stress distribution, adapts to different pier top sizes, enables rapid installation and dismantling, reduces the risks of high-altitude operations, and improves construction safety and efficiency.
Smart Images

Figure CN224494877U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, and more specifically, to an adjustable pier top working steel platform. Background Technology
[0002] Currently, the construction of supports at the top of tall bridge piers, or other procedures that require work on the pier top, is limited by the small space on the top of the pier, which greatly restricts the working area. Therefore, it is necessary to set up a construction platform on the outside of the pier top to expand the construction space.
[0003] Existing pier-top platform structures typically involve installing triangular brackets on the outer perimeter of the pier body and then erecting a construction platform on these brackets. Installing triangular brackets on the pier body requires pre-embedded parts before the pier body concrete is poured, increasing construction costs and implementation difficulty. Furthermore, the presence of these pre-embedded parts negatively impacts the pier's appearance, damaging its appearance and requiring significant repair work later. Additionally, installing the triangular brackets and erecting the platform involves high-altitude labor and poses substantial safety hazards.
[0004] Therefore, an adjustable steel platform for working on the pier top is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an adjustable pier top working steel platform to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable pier top working steel platform, comprising a pier top platform, two second columns symmetrically arranged on both the front and rear sides of the pier top platform, a top column fixedly installed at the top of each of the four second columns, a first column fixedly connected to both the left and right sides of the pier top platform, a top column fixedly connected to the top of each of the two first columns, an adjustable hanging leg movably threaded through each of the first and second columns, multiple expansion bolts threaded at equal intervals through one end of each adjustable hanging leg, a second meshing tooth provided at the bottom of each adjustable hanging leg, and a locking component for locking the position of the adjustable hanging leg provided on both the first and second columns.
[0007] Preferably, the locking assembly includes a fixing block, a threaded rod, a handwheel, a lifting seat, and a first tooth. A fixing block is fixedly welded to both the first column and the second column. A threaded rod is threaded through the surface of the fixing block. The top of the threaded rod is rotatably connected to the lifting seat. The top of the lifting seat is provided with a first tooth that engages with the second tooth.
[0008] Preferably, the bottom end of the threaded rod is fixedly connected to a handwheel for adjusting the rotation of the threaded rod, and the lifting seat is respectively limited and slidably connected to the first column and the second column.
[0009] Preferably, a plurality of first reinforcing blocks are fixedly welded at equal intervals on the top column, and a plurality of second reinforcing blocks are fixedly welded at equal intervals on the lifting seat.
[0010] Preferably, the pier top platform includes a first frame, a second frame, a first patterned steel plate, a second patterned steel plate, a first H-shaped steel plate, and a second H-shaped steel plate. Multiple first patterned steel plates are arranged between the first frame and the second frame. Multiple second patterned steel plates are arranged between the first frame and the second frame and below the first patterned steel plates. A second H-shaped steel plate is arranged at the bottom of the joint of two first patterned steel plates. The second H-shaped steel plate is fixedly connected to the first patterned steel plate and the second patterned steel plate by multiple first bolts. The first H-shaped steel plate is horizontally inclined between the first patterned steel plate and the second steel plate.
[0011] Preferably, the first H-shaped steel plate, the first patterned steel plate, and the second patterned steel plate are all fixedly connected by multiple third bolts.
[0012] Preferably, an L-shaped connecting plate is provided between the first frame, the second frame, and the second patterned steel plate, and the L-shaped connecting plate is fixedly connected to the first frame, the second frame, and the second patterned steel plate by a plurality of second bolts.
[0013] Preferably, an inclination sensor is installed on the pier top platform, a signal controller is installed on the side wall of the pier top platform, the inclination sensor and the signal controller are connected by a wire, an alarm is installed on the side wall of the pier top platform and on the side of the signal controller, and two lifting rings are welded to each of the four side walls of the pier top platform.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] Compared with existing technologies, this adjustable pier-top working steel platform avoids the need for embedded parts in the pier body by setting adjustable hanging legs, making the structural stress simpler and clearer. At the same time, by increasing the adjustment of the extension and retraction position of the adjustable hanging legs, it can adapt to the size of pier tops of different sizes. The pier-top platform can not only be constructed in modular form and directly hung on the pier top, but also facilitates the installation and dismantling of lifting equipment or winches. Even after the construction of the bridge superstructure, the pier-top platform can be quickly installed and dismantled, ensuring safe construction at height. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the pier top platform of this utility model.
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the adjustable hanging leg of this utility model.
[0018] Figure 3 This is a schematic diagram of the adjustable hanging leg explosion three-dimensional structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the partially exploded pier top platform of this utility model.
[0020] The attached diagram is labeled as follows: 1. Pier top platform; 101. First frame; 102. Second frame; 103. First patterned steel plate; 104. Second patterned steel plate; 105. First bolt; 106. L-shaped connecting plate; 107. Second bolt; 108. First H-shaped steel plate; 109. Third bolt; 120. Second H-shaped steel plate; 2. Tilt sensor; 3. Signal controller; 4. Alarm; 5. First column; 6. Second column; 7. Top column; 8. First reinforcing block; 9. Fixing block; 10. Threaded rod; 11. Handwheel; 12. Lifting seat; 13. Second reinforcing block; 14. First gear; 15. Adjustable hanging leg; 16. Second gear; 17. Expansion bolt; 18. Lifting ring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1
[0023] As attached Figures 1 to 4 The adjustable pier top working steel platform shown includes a pier top platform 1. Two second columns 6 are symmetrically arranged on the front and rear sides of the pier top platform 1. A top column 7 is fixedly installed at the top of each of the four second columns 6. A first column 5 is fixedly connected to the left and right sides of the pier top platform 1. A top column 7 is fixedly connected to the top of each of the two first columns 5. An adjustable hanging leg 15 is movably threaded through each of the first columns 5 and the second columns 6. Multiple expansion bolts 17 are threaded at equal intervals through one end of the adjustable hanging leg 15. A second meshing tooth 16 is provided at the bottom of the adjustable hanging leg 15. Locking components for locking the position of the adjustable hanging leg 15 are provided on both the first columns 5 and the second columns 6.
[0024] Specifically, the adjustable hanging leg 15 avoids the need for embedded parts in the pier body, making the structural stress more concise and clear. At the same time, by increasing the adjustment of the extension position of the adjustable hanging leg 15, the adjustable hanging leg 15 can be connected to the pre-drilled connection hole on the pier top, allowing the pier top platform 1 to adapt to pier tops of different sizes. The pier top platform 1 can not only be constructed in modular form and directly hung on the pier top, but also facilitates the installation and dismantling of lifting equipment or winches. Even after the construction of the bridge superstructure, the pier top platform 1 can be quickly installed and dismantled, ensuring safe construction at height.
[0025] Example 2
[0026] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:
[0027] In a preferred embodiment, the locking assembly includes a fixing block 9, a threaded rod 10, a handwheel 11, a lifting seat 12, and a first gear 14. A fixing block 9 is fixedly welded to both the first column 5 and the second column 6. A threaded rod 10 is threaded through the surface of the fixing block 9. The lifting seat 12 is rotatably connected to the top of the threaded rod 10. The top of the lifting seat 12 is provided with a first gear 14 that engages with the second gear 16. A handwheel 11 is fixedly connected to the bottom of the threaded rod 10 to adjust its rotation. The lifting seat 12 is slidably connected to the first column 5, the second column 6, and the top column 7, respectively. Multiple first reinforcing blocks 8 are fixedly welded at equal intervals, and multiple second reinforcing blocks 13 are fixedly welded at equal intervals on the lifting seat 12. When it is necessary to lock the position of the movable adjustable hanging leg 15, the threaded rod 10 can be rotated directly through the handwheel 11. Then, the threaded connection between the threaded rod 10 and the fixed block 9 pushes the lifting seat 12 to slide upward at the upper limit of the first column 5 and the second column 6. Then, the first tooth 14 set at the top of the lifting seat 12 engages with the second tooth 16 set at the bottom of the adjustable hanging leg 15, thereby locking the position of the movable adjustable hanging leg 15.
[0028] In a preferred embodiment, the pier top platform 1 includes a first frame 101, a second frame 102, a first patterned steel plate 103, a second patterned steel plate 104, a first H-shaped steel plate 108, and a second H-shaped steel plate 120. Multiple first patterned steel plates 103 are disposed between the first frame 101 and the second frame 102. Multiple second patterned steel plates 104 are disposed between the first frame 101 and the second frame 102 and below the first patterned steel plates 103. A second H-shaped steel plate 120 is disposed at the bottom of the junction of two first patterned steel plates 103. The second H-shaped steel plate 120 and the first patterned steel plate 103... The second patterned steel plates 104 are all fixedly connected by multiple first bolts 105. A first H-shaped steel plate 108 is horizontally inclined between the first patterned steel plate 103 and the second patterned steel plate 104. The first H-shaped steel plate 108, the first patterned steel plate 103, and the second patterned steel plate 104 are all fixedly connected by multiple third bolts 109. An L-shaped connecting plate 106 is provided between the first frame 101, the second frame 102, and the second patterned steel plate 104. The L-shaped connecting plate 106 is fixedly connected to the first frame 101, the second frame 102, and the second patterned steel plate 104 by multiple second bolts 107.
[0029] In a preferred embodiment, an inclination sensor 2 is installed on the pier top platform 1, and a signal controller 3 is installed on the side wall of the pier top platform 1. The inclination sensor 2 and the signal controller 3 are connected by wires. An alarm 4 is installed on the side wall of the pier top platform 1, located on the side of the signal controller 3. Finally, two lifting rings 18 are welded to each of the four side walls of the pier top platform 1. When the device is in use, the inclination of the pier top platform 1 can be directly detected by the inclination sensor 2. The detected inclination angle is then converted into an electrical signal. The signal controller 3 receives the electrical signal and compares it with a preset value range. When the detected inclination angle is greater than the preset value range, it indicates that the overall inclination angle of the pier top platform 1 is too large. At this time, the horizontal inclination angle of the pier top platform 1 can be adjusted during installation to avoid a large inclination angle during the installation of the pier top platform 1.
[0030] The working process of this utility model is as follows: First, the lifting equipment or winch lifts the pier top platform 1 and moves it to the pier top. Then, the position of the pier top platform 1 is adjusted. Next, the position of the adjustable hanging leg 15 on the first column 5 and the second column 6 can be moved and adjusted so that one end of the adjustable hanging leg 15 can be inserted into the connection hole pre-opened on the pier top for connection. This allows the pier top platform 1 to adapt to pier tops of different sizes.
[0031] After adjusting the telescopic position of the adjustable hanging leg 15, the threaded rod 10 can be rotated directly through the handwheel 11. Then, through the threaded connection between the threaded rod 10 and the fixed block 9, the lifting seat 12 is pushed to slide upward at the upper limit of the first column 5 and the second column 6. Then, the first tooth 14 set at the top of the lifting seat 12 engages with the second tooth 16 set at the bottom of the adjustable hanging leg 15, thereby locking the position of the adjustable hanging leg 15. Finally, the expansion bolt 17 set on the adjustable hanging leg 15 is used to fix one end of the adjustable hanging leg 15 to the top of the pier. The above is the working principle of this adjustable pier top working steel platform.
Claims
1. An adjustable steel platform for working on the top of a pier, comprising a platform on the top of the pier (1), characterized in that: The pier top platform (1) is symmetrically provided with two second columns (6) on both the front and rear sides. Each of the four second columns (6) is fixedly provided with a top column (7). Each of the left and right sides of the pier top platform (1) is fixedly connected with a first column (5). Each of the two first columns (5) is fixedly connected with a top column (7). Each of the first column (5) and the second column (6) is provided with an adjustable hanging leg (15). Each of the adjustable hanging legs (15) is provided with multiple expansion bolts (17) threaded at equal intervals at one end. Each of the adjustable hanging legs (15) is provided with a second tooth (16) at the bottom. Each of the first column (5) and the second column (6) is provided with a locking component for locking the position of the adjustable hanging leg (15).
2. The adjustable pier-top working steel platform according to claim 1, characterized in that: The locking assembly includes a fixing block (9), a threaded rod (10), a handwheel (11), a lifting seat (12), and a first tooth (14). A fixing block (9) is fixedly welded on the first column (5) and the second column (6). The fixing block (9) has a threaded rod (10) threaded through its surface. The top end of the threaded rod (10) is rotatably connected to the lifting seat (12). The top end of the lifting seat (12) is provided with a first tooth (14) that engages with the second tooth (16).
3. The adjustable pier-top working steel platform according to claim 2, characterized in that: The bottom end of the threaded rod (10) is fixedly connected to a handwheel (11) for rotating and adjusting the threaded rod (10), and the lifting seat (12) is respectively limited and slidably connected to the first column (5) and the second column (6).
4. The adjustable pier-top working steel platform according to claim 2, characterized in that: Multiple first reinforcing blocks (8) are fixedly welded at equal intervals on the top column (7), and multiple second reinforcing blocks (13) are fixedly welded at equal intervals on the lifting seat (12).
5. The adjustable pier-top working steel platform according to claim 1, characterized in that: The pier top platform (1) includes a first frame (101), a second frame (102), a first patterned steel plate (103), a second patterned steel plate (104), a first H-shaped steel plate (108), and a second H-shaped steel plate (120). Multiple first patterned steel plates (103) are provided between the first frame (101) and the second frame (102). Multiple second patterned steel plates (104) are provided between the first frame (101) and the second frame (102) and below the first patterned steel plates (103). A second H-shaped steel plate (120) is provided at the bottom of the junction of two first patterned steel plates (103). The second H-shaped steel plate (120) is fixedly connected to the first patterned steel plate (103) and the second patterned steel plate (104) by multiple first bolts (105). A first H-shaped steel plate (108) is horizontally inclined between the first patterned steel plate (103) and the second patterned steel plate (104).
6. The adjustable pier-top working steel platform according to claim 5, characterized in that: The first H-shaped steel plate (108), the first patterned steel plate (103), and the second patterned steel plate (104) are all fixedly connected by multiple third bolts (109).
7. An adjustable pier-top working steel platform according to claim 5, characterized in that: An L-shaped connecting plate (106) is provided between the first frame (101), the second frame (102) and the second patterned steel plate (104). The L-shaped connecting plate (106) is fixedly connected to the first frame (101), the second frame (102) and the second patterned steel plate (104) by a plurality of second bolts (107).
8. The adjustable pier-top working steel platform according to claim 1, characterized in that: An inclination sensor (2) is installed on the pier top platform (1). A signal controller (3) is installed on the side wall of the pier top platform (1). The inclination sensor (2) and the signal controller (3) are connected by wires. An alarm (4) is installed on the side wall of the pier top platform (1) and on the side of the signal controller (3). Two lifting rings (18) are welded to each of the four side walls of the pier top platform (1).