Assembly type bridge edge safety protection device
By using a fixing mechanism of fences and fixed columns in the construction of prefabricated bridges, the problem of construction personnel and equipment falling from heights was solved, thus achieving protection of construction safety and load-bearing capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YCIC HIGHWAY CONSTR CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-02
AI Technical Summary
During the construction of prefabricated bridges, there is a risk of workers or equipment falling from heights, especially when the bridge side guardrail system is not completed during the prefabricated component installation stage.
Design a prefabricated bridge edge safety protection device, including a fence and fixed posts. The fixed posts are detachably fixed to the stirrups of the prefabricated bridge components by a fixing mechanism to form temporary protection and prevent construction personnel and equipment from falling.
This effectively prevents construction workers and equipment from falling, ensuring construction safety, while also avoiding the impact of drilling operations on the load-bearing strength of precast bridge components.
Smart Images

Figure CN224314722U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge construction, and in particular relates to a prefabricated bridge edge safety protection device. Background Technology
[0002] Prefabricated bridges refer to a modern bridge construction method in which bridge components (such as beams, piers, and cap beams) are prefabricated in factories, transported to the site, and then assembled. Compared with traditional cast-in-place construction, this method has significant advantages such as high construction efficiency, minimal environmental impact, and stable and controllable quality, and has become an important technological development direction in current bridge engineering construction.
[0003] However, in the actual construction of prefabricated bridges, significant safety hazards exist at the construction site because the bridge construction location is usually in a high-altitude working environment, and the bridge side guardrail system has not yet been completed during the prefabricated component installation stage. Specifically, construction workers face the risk of falling from the edges of prefabricated components that have been installed but not protected during component hoisting, positioning, and connection operations, as well as during the movement and operation of various construction equipment on the bridge deck. This risk of falling from heights not only threatens the lives of workers but may also cause equipment damage and project delays. Utility Model Content
[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a safety protection device for the edge of prefabricated bridges, which is used to solve the problem of the risk of construction personnel or construction equipment falling from heights during the construction of prefabricated bridges in the prior art.
[0005] To achieve the above and other related objectives, this utility model provides a prefabricated bridge edge safety protection device, comprising: a fence; at least two fixed posts, one fixed post on each side of the fence, the fixed posts being detachably connected to the fence; and at least two fixing mechanisms, each fixing mechanism corresponding to a fixed post, the fixing mechanism being used to detachably fix the corresponding fixed post to a stirrup on one side of the prefabricated bridge component.
[0006] Optionally, the fixing mechanism includes a first connector, a second connector, and a first fixing component; the first connector and the second connector are spaced apart on the fixing column, and a first installation gap for accommodating stirrups is formed between the first connector and the second connector; the first fixing component is used to detachably connect with the first connector and the second connector to detachably connect the fixing column to the stirrups.
[0007] Optionally, the first fixing component includes a first fixing member and a second fixing member; the first connecting member and the second connecting member are respectively provided with a first mounting hole for the connecting end of the first fixing member to pass through; the connecting end of the first fixing member passes through the first mounting hole of the first connecting member and the second connecting member and connects to the second fixing member to detachably connect the fixing column to the stirrup.
[0008] Optionally, the first fastener is a bolt and the second fastener is a nut.
[0009] Optionally, the fixing mechanism further includes a third connector, a fourth connector, a connecting rod, a second fixing component, and a third fixing component; the third connector is disposed on the fixing column; one end of the connecting rod is detachably connected to the third connector through the second fixing component; the fourth connector and the end of the connecting rod away from the third connector are spaced apart to form a second installation gap for accommodating the stirrups; the third fixing component is detachably connected to the fourth connector and the connecting rod to detachably connect the connecting rod to the stirrups; and the top surfaces of the fixing column, the connecting rod, and the precast bridge component enclose a triangle.
[0010] Optionally, the second fixing component includes a third fixing member and a fourth fixing member. The third connecting member and the connecting rod are respectively provided with a second mounting hole for the connecting end of the third fixing member to pass through. After the connecting end of the third fixing member passes through the connecting rod and the second mounting hole on the third connecting member, it is detachably connected to the fourth fixing member so that the connecting rod can be detachably connected to the fixing post.
[0011] Optionally, the third fixing component includes at least two fifth fixing members and at least two sixth fixing members; the fourth connector and the connecting end of the connecting rod to the fourth connector are respectively provided with at least two third mounting holes for the connecting end of the fifth fixing member to pass through, and the third mounting holes, the fifth fixing member and the sixth fixing member are provided in a one-to-one correspondence; the connecting end of the fifth fixing member passes through the third mounting hole provided on the fourth connector and through the third mounting hole on the connecting section of the connecting rod and the fourth connector, and is detachably connected to the sixth fixing member, so as to detachably connect the connecting rod to the stirrup.
[0012] Optionally, the third and fifth fasteners are bolts, and the fourth and sixth fasteners are nuts.
[0013] Optionally, the third connector is slidably connected to the fixed post.
[0014] Optionally, two fifth connectors are spaced apart on the fixed post, and two sixth connectors are spaced apart on each side of the fence. The fifth and sixth connectors are arranged in a one-to-one correspondence and can be detachably connected.
[0015] As described above, the prefabricated bridge edge safety protection device of this utility model has at least the following beneficial effects: by setting up a fence, fixed posts, and a fixing mechanism, the fixing mechanism is used to set the fixed posts on the stirrups of the prefabricated bridge components, and then the fixed posts are connected to the fence, thus serving as temporary protection for the installed prefabricated bridge components, ensuring that construction personnel and construction equipment will not fall, thereby avoiding safety accidents; in addition, the fixed posts are installed on the stirrups prefabricated on the prefabricated bridge components through the fixing mechanism, which can also avoid affecting the load-bearing strength of the prefabricated bridge components due to operations such as drilling holes in the prefabricated bridge components. Attached Figure Description
[0016] Figure 1 The image shown is a schematic diagram of an angle of the prefabricated bridge edge safety protection device of this utility model.
[0017] Figure 2 This is a schematic diagram of another angle of the prefabricated bridge edge safety protection device of this utility model.
[0018] Figure 3 Displayed as Figure 1 An enlarged diagram of point A in the diagram.
[0019] Figure 4 Displayed as Figure 2 An enlarged diagram of point B in the diagram.
[0020] Component designation explanation:
[0021] 1. Fence; 11. Sixth connector; 2. Fixing post; 21. Fifth connector; 3. Fixing mechanism; 31. First connector; 32. Second connector; 33. First fixing component; 331. First fixing component; 332. Second fixing component; 34. Third connector; 35. Fourth connector; 36. Connecting rod; 37. Second fixing component; 371. Third fixing component; 372. Fourth fixing component; 38. Third fixing component; 381. Fifth fixing component; 382. Sixth fixing component. Detailed Implementation
[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0023] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0024] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.
[0025] Please see Figure 1-4 This utility model provides a prefabricated bridge edge safety protection device, including: at least one fence 1; at least two fixed posts 2, with one fixed post 2 on each side of each fence 1, and the fixed posts 2 are detachably connected to the fence 1; at least two fixing mechanisms 3, with the fixing mechanisms 3 corresponding to the fixed posts 2, and the fixing mechanisms 3 are used to detachably fix the corresponding fixed posts 2 to the stirrups on one side of the prefabricated bridge component.
[0026] Stirrups are provided on both sides of the precast bridge components. These stirrups are used to form the subsequent bridge railing 1 by pouring concrete after the precast bridge components are assembled onto the piers. In this embodiment, the precast bridge edge safety protection device serves as temporary protection for the installed precast bridge components, ensuring that construction personnel and equipment do not fall and thus avoiding safety accidents. In addition, the fixing column 2 in this embodiment is installed on the stirrups precast on the precast bridge components through the fixing mechanism 3, which also avoids affecting the load-bearing strength of the precast bridge components due to operations such as drilling holes in them.
[0027] The fixing mechanism 3 includes a first connecting member 31, a second connecting member 32, and a first fixing assembly 33; the first connecting member 31 and the second connecting member 32 can be connecting pieces welded to the fixing post 2, and the first connecting member 31 and the second connecting member 32 are spaced apart on the fixing post 2, such as... Figure 1As shown, the first connector 31 is disposed on the rear side of the fixed column 2, and the second connector 32 is disposed on the front side of the fixed column 2. A first installation gap for accommodating the stirrup is formed between the first connector 31 and the second connector 32. The first fixing assembly 33 is used to detachably connect with the first connector 31 and the second connector 32 to detachably connect the fixed column 2 to the stirrup. After the first connector 31 and the second connector 32 are detachably connected together using the first fixing assembly 331, the first connector 31 and the second connector 32 abut against the side of the stirrup, thereby using the friction between the first connector 31 and the second connector 32 and the stirrup to securely fix the fixed column 2 to the precast bridge component.
[0028] The first fixing component 33 may include a first fixing member 331 and a second fixing member 332; the first connecting member 31 and the second connecting member 32 are respectively provided with first mounting holes for the connecting end of the first fixing member 331 to pass through; the connecting end of the first fixing member 331 passes through the first mounting holes of the first connecting member 31 and the second connecting member 32 and connects to the second fixing member 332, so as to detachably connect the fixing post 2 to the stirrup. Specifically, the first fixing member 331 is a bolt and the second fixing member 332 is a nut, so that the first connecting member 31 and the second connecting member 32 can be fixedly connected to the stirrup by the threaded connection of the bolt and the nut, which also facilitates installation and subsequent disassembly.
[0029] The fixing mechanism 3 also includes a third connector 34, a fourth connector 35, a connecting rod 36, a second fixing component 37, and a third fixing component 38. The third connector 34 may include a sliding sleeve and a connecting portion adapted to the shape of the fixing post 2. Adaptation, as referred to herein, means that when the fixing post 2 is circular, the inner shape of the sliding sleeve is circular, and the inner diameter of the sliding sleeve is greater than or equal to the outer diameter of the fixing post 2. This allows the sliding sleeve to slide on the fixing post 2, enabling adaptive adjustment of the position of the third connector 34 on the fixing post 2 during installation. In this embodiment, to facilitate welding the first connector 31, the second connector 32, and the fifth connector 21 (described later) to the fixing post 2, the fixing post 2 has a square structure, and the inner side of the corresponding sliding sleeve is also square. One end of the connecting rod 36 is detachably connected to the third connector 34 via the second fixing component 37, specifically to the connecting portion of the third connector 34.
[0030] The fourth connector 35 can be a metal connecting piece. The fourth connector 35 and the connecting rod 36 are spaced apart at the ends away from the third connector 34 to form a second installation gap for accommodating the stirrup. The third fixing component 38 is detachably connected to the fourth connector 35 and the connecting rod 36 to detachably connect the connecting rod 36 to the stirrup. The top surface of the fixing column 2, the connecting rod 36 and the bridge precast component forms a triangle to ensure that the fixing column 2 can be securely installed on the stirrup.
[0031] The second fixing component 37 includes a third fixing member 371 and a fourth fixing member 372. The third connecting member 34 and the connecting rod 36 are respectively provided with second mounting holes for the connecting end of the third fixing member 371 to pass through. The connecting end of the third fixing member 371 passes through the second mounting holes on the connecting rod 36 and the third connecting member 34 and is detachably connected to the fourth fixing member 372 so that the connecting rod 36 can be detachably connected to the fixing post 2.
[0032] The third fixing component 38 includes at least two fifth fixing members 381 and at least two sixth fixing members 382. At least two third mounting holes are provided at intervals on the connection ends of the fourth connecting member 35 and the connecting rod 36, allowing the connection ends of the fifth fixing members 381 to pass through. The third mounting holes, fifth fixing members 381, and sixth fixing members 382 are provided in a one-to-one correspondence. The connection end of the fifth fixing member 381 passes through the third mounting hole on the fourth connecting member 35 and the third mounting hole on the connection section between the connecting rod 36 and the fourth connecting member 35, and is detachably connected to the sixth fixing member 382, thereby detachably connecting the connecting rod 36 to the stirrup. More specifically, the third fixing member 371 and the fifth fixing member 381 are bolts, and the fourth fixing member 372 and the sixth fixing member 382 are nuts, facilitating installation and subsequent disassembly.
[0033] Two fifth connectors 21 are spaced apart on the fixed post 2, and two sixth connectors 11 are spaced apart on both sides of the fence 1. The fifth connectors 21 and the sixth connectors 11 are arranged one-to-one. The fifth connectors 21 and the sixth connectors 11 can be metal connecting pieces. The fifth connectors 21 are welded to the fixed post 2, and the sixth connectors 11 are welded to the fence 1. The fifth connectors 21 and the sixth connectors 11 are detachable. Specifically, the fifth connectors 21 and the sixth connectors 11 are each provided with a fourth mounting hole. After aligning the fourth mounting holes of the fifth connectors 21 and the sixth connectors 11, they can be fixed together using bolts and nuts to facilitate installation and subsequent disassembly.
[0034] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A prefabricated bridge edge safety protection device, characterized in that, include: Fence; At least two fixed posts are provided, one on each side of the fence, and the fixed posts are detachably connected to the fence; At least two fixing mechanisms are provided, each corresponding to a fixing column. The fixing mechanism is used to detachably fix the corresponding fixing column to the stirrup on one side of the precast bridge component. The fixing mechanism includes a first connector, a second connector, and a first fixing component; The first connector and the second connector are spaced apart on the fixed column, and a first installation gap for accommodating the stirrups is formed between the first connector and the second connector. The first fixing component is used to detachably connect with the first connector and the second connector to detachably connect the fixing column to the stirrup; The first fixing component includes a first fixing member and a second fixing member; The first connector and the second connector are respectively provided with a first mounting hole for the connecting end of the first fixing member to pass through; the connecting end of the first fixing member passes through the first mounting holes of the first connector and the second connector and is connected to the second fixing member to detachably connect the fixing column to the stirrup.
2. The prefabricated bridge edge safety protection device according to claim 1, characterized in that: The first fastener is a bolt, and the second fastener is a nut.
3. The prefabricated bridge edge safety protection device according to claim 1, characterized in that: The fixing mechanism further includes a third connector, a fourth connector, a connecting rod, a second fixing component, and a third fixing component; The third connector is disposed on the fixed post; one end of the connecting rod is detachably connected to the third connector via the second fixing component; The fourth connector and the connecting rod are spaced apart at the ends away from the third connector to form a second installation gap for accommodating the stirrups. The third fixing component is detachably connected to the fourth connector and the connecting rod to detachably connect the connecting rod to the stirrups. The top surfaces of the fixing column, the connecting rod, and the precast bridge component form a triangle.
4. The prefabricated bridge edge safety protection device according to claim 3, characterized in that: The second fixing component includes a third fixing member and a fourth fixing member. The third connecting member and the connecting rod are respectively provided with a second mounting hole for the connecting end of the third fixing member to pass through. The connecting end of the third fixing member passes through the second mounting hole on the connecting rod and the third connecting member and is detachably connected to the fourth fixing member so that the connecting rod can be detachably connected to the fixing post.
5. A prefabricated bridge edge safety protection device according to claim 4, characterized in that: The third fixing component includes at least two fifth fixing members and at least two sixth fixing members; The fourth connector and the connecting rod are respectively provided with at least two third mounting holes at intervals on their connecting ends for the connecting end of the fifth fastener to pass through. The third mounting holes, the fifth fastener and the sixth fastener are provided in a one-to-one correspondence. The connecting end of the fifth fastener passes through the third mounting hole provided on the fourth fastener and through the third mounting hole on the connecting section between the connecting rod and the fourth fastener, and is detachably connected to the sixth fastener to detachably connect the connecting rod to the stirrup.
6. A prefabricated bridge edge safety protection device according to claim 5, characterized in that: The third and fifth fixing components are bolts, and the fourth and sixth fixing components are nuts.
7. A prefabricated bridge edge safety protection device according to claim 3, characterized in that: The third connector is slidably connected to the fixed column.
8. A prefabricated bridge edge safety protection device according to claim 1, characterized in that: Two fifth connectors are spaced apart on the fixed post, and two sixth connectors are spaced apart on each side of the fence. The fifth and sixth connectors are arranged in a one-to-one correspondence and are detachably connected.