Movable box girder construction guardrail
Patent Information
- Application Number
- CN202522099713.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-09-29
AI Technical Summary
[0004]为了解决上述技术问题,本实用新型提供一种移动式箱梁施工护栏,以解决梁端存在较大的临边作业安全风险的问题
[0012] The frame, consisting of movable stairs and platforms, can be moved to the end of the corresponding construction box girder, providing platform construction while also offering the protection of the first guardrail. The brackets and mounting plates have good disassembly and fixing effects, are simple to disassemble and transport, and have a high degree of safety standardization.
Smart Images

Figure CN224728872U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of construction safety tools, and more specifically, it relates to a mobile box girder construction guardrail. Background Technology
[0002] The three walls of the integrated erection bridge deck for high-speed railway box girders consist of vertical wall A, vertical wall B, and a protective wall. Traditionally, the three walls are constructed on the bridge during the gap in girder transportation after the girder is erected. However, in the integrated erection bridge deck three-wall design, the three walls need to be poured in the girder fabrication yard before the girder is erected. Adjacent girder storage platforms in the girder storage area are separated by passageways, with a distance of about 9m. The first-layer box girder is about 4m above the ground, and the second-layer box girder is about 7m above the ground. There is a significant safety risk of working near the edge of the girder.
[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a mobile box girder construction guardrail in order to achieve a more practical value. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a mobile box girder construction guardrail to resolve the significant safety risks associated with working near the edge of the beam.
[0005] The purpose and effect of this utility model of a mobile box girder construction guardrail are achieved by the following specific technical means:
[0006] A mobile box girder construction guardrail includes a base, an intermediate frame vertically arranged in the middle of the base, a platform on one side of the top of the intermediate frame, and a staircase inclinedly arranged on the other side of the intermediate frame. One end of the staircase is connected to the base, and the other end is connected to the bend of the platform. Multiple casters are provided at the bottom of the base. A first guardrail on the same side as the intermediate frame is provided on the platform. A support arm is hinged to the inner side of the first guardrail, and a mounting base is hinged to the other end of the support arm.
[0007] Furthermore, a railing is provided at one end of the platform, and a second guardrail is provided on the side of the staircase away from the intermediate frame, with the top of the second guardrail connected to the railing.
[0008] Furthermore, both the first and second guardrails are equipped with baffles.
[0009] Furthermore, the base is provided with multiple reinforcing ribs, and screws are threaded through both ends of the reinforcing ribs. The screws are threadedly connected to the reinforcing ribs, and a positioning plate is provided at the bottom of the screws.
[0010] Furthermore, the bottom of the platform is connected to the intermediate frame via a frame, and a support bracket is connected to the side of the bottom of the frame away from the intermediate frame. The support bracket is inclined and its bottom is fixed to the base.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] The frame, consisting of movable stairs and platforms, can be moved to the end of the corresponding construction box girder, providing platform construction while also offering the protection of the first guardrail. The brackets and mounting plates have good disassembly and fixing effects, are simple to disassemble and transport, and have a high degree of safety standardization. Attached Figure Description
[0013] Figure 1 This is a perspective view of a mobile box girder construction guardrail according to this utility model.
[0014] Figure 2 This is a rear side view of a mobile box girder construction guardrail according to this utility model.
[0015] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0016] 1. Base; 2. Intermediate frame; 3. Platform; 4. Stairs; 5. Supporting diagonal frame; 6. Fence; 7. First guardrail; 8. Baffle; 9. Second guardrail; 10. Casters; 101. Reinforcing rib; 102. Screw; 103. Positioning plate; 701. Support arm; 702. Mounting base. Detailed Implementation
[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] Example:
[0021] As attached Figure 1 To be continued Figure 2 As shown:
[0022] This utility model provides a mobile box girder construction guardrail, including a base 1, an intermediate frame 2 vertically arranged in the middle of the base 1, a platform 3 arranged on one side of the top of the intermediate frame 2, and a staircase 4 inclinedly arranged on the other side of the intermediate frame 2. One end of the staircase 4 is connected to the base 1, and the other end is connected to the bend of the platform 3. The staircase 4 and the platform 3 are distributed in two directions of the intermediate frame 2, which plays a balancing role and makes the base 1 stable.
[0023] The bottom of platform 3 is connected to the intermediate frame 2 through a frame. The frame improves the structural strength and support strength of platform 3. The bottom of the frame away from the intermediate frame 2 is connected to a support bracket 5. The support bracket 5 is inclined and its bottom is fixed on the base 1 to ensure the stability of platform 3 and prevent platform 3 from bending or deforming.
[0024] The base 1 is equipped with multiple casters 10 at its bottom. These casters 10 have a self-locking function, which allows the base 1 to move so that the platform 3 can be placed on the edge of the box girder that needs to be constructed. The platform 3 is equipped with a first guardrail 7 on the same side as the intermediate frame 2. A support arm 701 is hinged to the inner side of the first guardrail 7. The other end of the support arm 701 is hinged to a mounting seat 702. The mounting seat 702 is equipped with positioning holes that match the surface of the box girder. After the mounting seat 702 is placed in the corresponding position, a pin is inserted into the positioning hole to fix the support arm 701, making the first guardrail 7 more stable and preventing the entire guardrail from tipping over when subjected to force.
[0025] A railing 6 is installed at one end of the platform 3, and a second guardrail 9 is installed on the side of the staircase 4 away from the intermediate frame 2. The top of the second guardrail 9 is connected to the railing 6. The second guardrail 9 and the railing 6 effectively protect the safety of workers when walking up and down. Furthermore, baffles 8 are installed on both the first guardrail 7 and the second guardrail 9 to improve the protective effect and increase safety.
[0026] The base 1 is provided with multiple reinforcing ribs 101 to increase the structural strength of the base 1 and prevent deformation. The two ends of the reinforcing ribs 101 extend beyond the range of the base 1. The two ends of the reinforcing ribs 101 are provided with screws 102, which are threaded to the reinforcing ribs 101. The bottom of the screws 102 is provided with a positioning plate 103. Rotating the screws 102 can make the positioning plate 103 contact the ground, thereby fixing the position of the entire guardrail. With the self-locking of the casters 10, the entire guardrail is more stable. When it is necessary to move and change the use position, the positioning plate 103 is rotated off the ground, and the casters 10 are unlocked for movement.
[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A mobile box girder construction guardrail, characterized in that: Includes a base (1), a middle frame (2) is vertically arranged in the middle of the base (1), a platform (3) is arranged on one side of the top of the middle frame (2), and a staircase (4) is inclinedly arranged on the other side of the middle frame (2). One end of the staircase (4) is connected to the base (1), and the other end is connected to the bend of the platform (3). Multiple casters (10) are arranged at the bottom of the base (1). A first guardrail (7) on the same side as the middle frame (2) is arranged on the platform (3). A support arm (701) is hinged to the inner side of the first guardrail (7), and a mounting base (702) is hinged to the other end of the support arm (701).
2. The mobile box girder construction guardrail as described in claim 1, characterized in that: One end of the platform (3) is provided with a fence (6), and the edge of the staircase (4) away from the intermediate frame (2) is provided with a second guardrail (9), the top of the second guardrail (9) is connected to the fence (6).
3. The mobile box girder construction guardrail as described in claim 1, characterized in that: Both the first guardrail (7) and the second guardrail (9) are equipped with baffles (8).
4. The mobile box girder construction guardrail as described in claim 1, characterized in that: The base (1) is provided with a plurality of reinforcing ribs (101), and screws (102) are threaded through both ends of the reinforcing ribs (101). The screws (102) are threadedly connected to the reinforcing ribs (101), and a positioning plate (103) is provided at the bottom of the screws (102).
5. A mobile box girder construction guardrail as described in claim 1, characterized in that: The bottom of the platform (3) is connected to the intermediate frame (2) through a frame, and a support frame (5) is connected to the side of the bottom of the frame away from the intermediate frame (2). The support frame (5) is inclined and its bottom is fixed on the base (1).