Bailey beam support
The sliding frame and slotted structure solved the problems of axial displacement and span adjustment difficulties of Bailey beams in the case of large spans, and realized the stable support and rapid construction of Bailey beams.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG HENGYOUQIAN INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
The existing connection method between Bailey beams and ground support brackets makes it difficult to maintain a horizontal straight benchmark under large span conditions, resulting in axis offset and eccentric load effects. In addition, the earthwork work needs to be repeatedly carried out when adjusting the span, which affects the construction speed.
The Bailey beam employs a sliding frame and slotted structure. The slotted limit and guide rail on the sliding frame ensure that both ends of the Bailey beam maintain a horizontal straight reference. The adjustable sliding frame can be used to adjust the support points, thereby reducing the eccentric load effect and shortening the adjustment time.
It reduces the probability of Bailey beam axis misalignment, improves structural load-bearing capacity, and accelerates the construction speed of Bailey beams.
Smart Images

Figure CN224160987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction support auxiliary equipment technology, specifically a Bailey beam support. Background Technology
[0002] A Bailey bridge is a truss structure assembled from multiple Bailey frames connected by bolts and pins. It can be expanded laterally or longitudinally into single-layer, double-layer, or multi-row structures to adapt to different spans and load requirements. It is widely used in bridge construction, temporary engineering support, and other fields. However, when supporting the construction surface, a ground support is required at the bottom of the Bailey bridge to ensure its stability.
[0003] The conventional method for connecting Bailey bridges to ground-supported brackets is to directly erect them between two brackets. However, this method faces two major technical bottlenecks in actual construction: First, when the combined span of the Bailey bridge exceeds the conventional size, the continuous beam formed by bolting multiple Bailey bridge sections cannot accurately maintain a horizontal straight reference at both ends. This installation deviation not only causes the beam axis to shift but also triggers eccentric load effects, significantly reducing the structural load-bearing capacity. Second, because the positioning coordinates of the brackets differ for different spans, when the project requirements change and the beam span needs to be adjusted, a series of procedures must be carried out, including pulling out the brackets already embedded in the foundation pit, backfilling the foundation pit, and excavating new locations. This repeated operation involving earthwork consumes a lot of time and seriously affects the construction speed of the Bailey bridge. Utility Model Content
[0004] The purpose of this invention is to provide a Bailey beam support to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a Bailey beam support, including a sliding frame, a first pillow frame and a second pillow frame respectively provided on both sides of the bottom of the sliding frame, a support column provided at the bottom of the first pillow frame and the second pillow frame, a plurality of slots opened at the top of the sliding frame, a Bailey beam slidably connected to the inner side of the slots, a guide rail provided at the top of the first pillow frame and the second pillow frame, a limit strip provided on one side wall of the guide rail, an insertion hole opened on one side outer wall of the first pillow frame and the second pillow frame, and a baffle fixedly connected to one end of the first pillow frame and the second pillow frame.
[0006] Preferably, there are at least two sliding frames, and two sliding grooves are provided at the bottom of each sliding frame, through which the sliding frame is slidably connected to the guide rail.
[0007] Preferably, both sides of the bottom end of the sliding frame are fixedly connected to a vertical plate, and a fastening screw is threaded through the middle of the vertical plate.
[0008] Preferably, a torsion block is fixedly connected to one end of the fastening screw, and the torsion block is rotatably connected to the vertical plate through the fastening screw.
[0009] Preferably, an internally threaded cylinder is embedded on the inner side of the insertion hole, and the internally threaded cylinder is threadedly engaged with the fastening screw.
[0010] Preferably, the vertical plate is slidably connected to the first pillow frame and the second pillow frame via a sliding frame.
[0011] Preferably, both the first pillow frame and the second pillow frame are provided with a card holder at their bottom ends, and the card holder is fixedly connected to the support column.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This Bailey beam support, through the setting of two sliding frames and slots, allows the two ends of the Bailey beam erected on the sliding frames to be limited by the slots set on the sliding frames, making it difficult for them to slide along the top of the sliding frames. This allows the two ends of the Bailey beam to maintain a horizontal straight reference, thereby reducing the probability of axial deviation of the Bailey beam, and thus reducing the eccentric load effect caused by axial deviation, and reducing the adverse impact on the load-bearing performance of the Bailey beam structure.
[0014] 2. This Bailey beam support system, through the first bolster frame, the second bolster frame, and the guide rail, allows for temporary adjustments to the support points at the bottom of the Bailey beam when necessary. This is achieved by pushing the sliding frame along the first and second bolster frames, enabling timely changes in the support points of the Bailey beam without needing to adjust the part of the support system in contact with the ground. This saves time required for adjusting the support points of the Bailey beam and helps to speed up the construction of the Bailey beam. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the first and second pillow frames of this utility model;
[0017] Figure 3 This is a schematic diagram of the sliding frame and fastening screw structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the internal threaded cylinder and the retainer structure of this utility model.
[0019] In the diagram: 1. Bailey beam; 2. Sliding frame; 3. Groove; 4. Guide rail; 5. Limiting strip; 6. Baffle; 7. First pillow frame; 8. Support column; 9. Second pillow frame; 10. Insertion hole; 11. Vertical plate; 12. Fastening screw; 13. Slide groove; 14. Torque block; 15. Internal threaded cylinder; 16. Card seat. Detailed Implementation
[0020] 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.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] like Figures 1 to 4 As shown, the Bailey beam support in this embodiment includes a sliding frame 2. A first pillow frame 7 and a second pillow frame 9 are respectively provided on both sides of the bottom of the sliding frame 2. The bottom of the first pillow frame 7 and the second pillow frame 9 are provided with support columns 8. The top of the sliding frame 2 is provided with multiple slots 3. The Bailey beam 1 is slidably connected to the inner side of the slots 3. The top of the first pillow frame 7 and the second pillow frame 9 are provided with guide rails 4. A limit strip 5 is provided on one side wall of the guide rail 4. An insertion hole 10 is provided on one side outer wall of the first pillow frame 7 and the second pillow frame 9. A baffle 6 is fixedly connected to one end of the first pillow frame 7 and the second pillow frame 9.
[0024] Specifically, the sliding frame 2 is a hollow square column structure, which reduces the weight of the support itself. The smooth bottom of the sliding frame 2 minimizes frictional resistance when sliding along the bolster frame. The number of sliding frames 2 can be increased or decreased depending on the actual number of Bailey beams 1, but a minimum of two is required to support the Bailey beams 1. The first bolster frame 7 and the second bolster frame 9 are symmetrically arranged on both sides of the bottom of the sliding frame 2, allowing the load on the sliding frame 2 to be transferred to the support column 8 through the bolster frame, ultimately transmitting the load force to the ground, thus supporting the Bailey beam 1. The support column 8 is a cylindrical structure, its function being to distribute the load on the bolster frame. The inner width of the groove 3 is adapted to the thickness of the Bailey frame, allowing the Bailey frame to be positioned correctly when assembled into the Bailey beam 1 via the groove 3. The Bailey beam 1 is equipped with a positioning and limiting strip to reduce the probability of axial displacement of the large-span Bailey beam 1, thereby ensuring the load-bearing efficiency of the Bailey beam 1 on the support. The Bailey beam 1 is assembled from multiple Bailey frames. The surface of the guide rail 4 is also relatively smooth, allowing the sliding frame 2 to slide smoothly along the guide rail 4. The limiting strip 5 is used to keep the sliding frame 2 in contact with the top of the pillow frame, thereby reducing the probability of the sliding frame 2 separating upward from the pillow frame. The insertion hole 10 is used to allow the fastening screw 12 to be inserted into the internal threaded cylinder 15, while providing sufficient space for the internal threaded cylinder 15 to be embedded. The baffle 6 is only set at one end of the pillow frame. Its function is to allow the sliding frame 2 to slide onto the pillow frame through the end of the pillow frame without the baffle 6 when the number of sliding frames 2 needs to be increased or decreased, thereby facilitating the adjustment of the number of sliding frames 2.
[0025] Furthermore, there are at least two sliding frames 2. Two sliding grooves 13 are provided at the bottom of the sliding frame 2. The sliding frame 2 is slidably connected to the guide rail 4 through the sliding grooves 13. The sliding frame 2 is engaged with the pillow frame through the sliding grooves 13, so that the sliding frame 2 can maintain a connected state with the pillow frame.
[0026] Furthermore, both sides of the bottom end of the sliding frame 2 are fixedly connected with vertical plates 11. The middle of the vertical plate 11 is threaded with a fastening screw 12. The side wall of the vertical plate 11 fits against the side of the pillow frame, so that the vertical plate 11 can limit the sliding frame 2 and keep the sliding frame 2 perpendicular to the pillow frame when sliding, thereby facilitating the synchronous movement of both ends of the sliding frame 2.
[0027] Furthermore, a torsion block 14 is fixedly connected to one end of the fastening screw 12. The torsion block 14 is rotatably connected to the vertical plate 11 through the fastening screw 12. The surface of the torsion block 14 is also provided with anti-slip stripes, making it easier to twist the fastening screw 12, thereby facilitating the adjustment of the position of the sliding frame 2.
[0028] Furthermore, an internally threaded cylinder 15 is embedded inside the insertion hole 10. The internally threaded cylinder 15 is threadedly engaged with the fastening screw 12. The function of the internally threaded cylinder 15 is to engage with the fastening screw 12 so that the fastening screw 12 can lock the vertical plate 11 onto the pillow frame, thereby temporarily fixing the sliding frame 2 on the pillow frame to ensure the stability of the sliding frame 2.
[0029] Furthermore, the vertical plate 11 is slidably connected to the first pillow frame 7 and the second pillow frame 9 via the sliding frame 2. The vertical plate 11 can slide along both sides of the first pillow frame 7 and the second pillow frame 9 as the sliding frame 2 slides, so that the sliding frame 2 can maintain better stability when sliding along the pillow frame.
[0030] Furthermore, both the first pillow frame 7 and the second pillow frame 9 are provided with a card holder 16 at their bottom ends. The card holder 16 is fixedly connected to the support column 8. The function of the card holder 16 is to make the connection between the pillow frame and the support column 8 quicker and more stable.
[0031] The method of use in this embodiment is as follows: When assembling the Bailey beam 1, the bracket needs to be fixed to the point where the Bailey beam 1 needs to be supported by the support column 8. After the bracket is fixed, the sliding frame 2 can be slid left and right along the first pillow frame 7 and the second pillow frame 9 according to the span of the Bailey beam 1, so that the contact point between the sliding frame 2 and the Bailey beam 1 can be quickly adjusted. After the position of the sliding frame 2 is adjusted, the torsion block 14 on the vertical plate 11 needs to be twisted so that the torsion block 14 drives the fastening screw 12 into the insertion hole 10. After the torsion block 14 can no longer be turned, the fastening screw 12 will engage with the internal threaded cylinder 15 in the insertion hole 10, so that the vertical plate 11 is clamped to one side of the pillow frame, so that the sliding frame 2 can be fixed on the first pillow frame 7 and the second pillow frame 9. Then, the assembled Bailey beam 1 is placed on the sliding frame 2. At this time, both ends of the Bailey beam 1 need to be simultaneously embedded into the corresponding grooves 3 of the sliding frame 2. This completes the connection between the Bailey beam 1 and the bracket.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A Bailey beam support, comprising a sliding frame (2), characterized in that: The sliding frame (2) has a first pillow frame (7) and a second pillow frame (9) on both sides of its bottom. The bottom of the first pillow frame (7) and the second pillow frame (9) is provided with a support column (8). The top of the sliding frame (2) is provided with multiple slots (3). Bailey beams (1) are slidably connected to the inner side of the slots (3). The top of the first pillow frame (7) and the second pillow frame (9) are provided with guide rails (4). A limit strip (5) is provided on one side wall of the guide rail (4). An insertion hole (10) is provided on one side outer wall of the first pillow frame (7) and the second pillow frame (9). A baffle (6) is fixedly connected to one end of the first pillow frame (7) and the second pillow frame (9).
2. The Bailey beam support according to claim 1, characterized in that: There are at least two sliding frames (2), and two sliding grooves (13) are provided at the bottom of the sliding frame (2). The sliding frame (2) is slidably connected to the guide rail (4) through the sliding grooves (13).
3. A Bailey beam support according to claim 1, characterized in that: Both sides of the bottom end of the sliding frame (2) are fixedly connected with vertical plates (11), and a fastening screw (12) is threaded through the middle of the vertical plate (11).
4. A Bailey beam support according to claim 3, characterized in that: One end of the fastening screw (12) is fixedly connected to a torsion block (14), and the torsion block (14) is rotatably connected to the vertical plate (11) through the fastening screw (12).
5. A Bailey beam support according to claim 3, characterized in that: An internally threaded cylinder (15) is embedded inside the insertion hole (10), and the internally threaded cylinder (15) is threadedly engaged with the fastening screw (12).
6. A Bailey beam support according to claim 3, characterized in that: The vertical plate (11) is slidably connected to the first pillow frame (7) and the second pillow frame (9) via a sliding frame (2).
7. A Bailey beam support according to claim 1, characterized in that: The bottom ends of the first pillow frame (7) and the second pillow frame (9) are provided with a card seat (16), and the card seat (16) is fixedly connected to the support column (8).