Protective support for bridge construction
By using the movable connection between the round column and the sliding seat, the stable connection between the flange and the foundation structure, and the design of the diagonal bracing plate, the problems of poor flexibility, insufficient stability, and limited functionality of the protective support were solved, thereby improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-07
AI Technical Summary
Existing protective supports for bridge construction suffer from poor flexibility, insufficient stability, unreliable connections, and limited functionality, which affect construction efficiency and safety.
It adopts a movable connection structure of round column and sliding seat, combined with the stable connection of flange and foundation structure, and enhances the overall stability through threaded connection and diagonal bracing plate. It also integrates hanging rod for hanging protective net, realizing height adjustment and multi-functional design.
It achieves flexible height adjustment of the protective bracket, improved overall stability, firm and reliable connection, and diversified functions, significantly improving construction efficiency and safety.
Smart Images

Figure CN224468250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, specifically to a protective support for bridge construction. Background Technology
[0002] During bridge construction, protective supports are indispensable key facilities to ensure the personal safety of construction workers, prevent construction materials from falling, and maintain stability and order in the construction area. They not only need to provide reliable protective working platforms for construction workers, but also need sufficient structural strength to withstand various external forces during construction, such as wind and construction loads. Therefore, their safety and stability are directly related to the smooth progress of bridge construction.
[0003] However, existing bridge construction protective supports have several limitations in practical applications: First, they lack structural flexibility. The crossbar heights of traditional protective supports are mostly fixed, making it impossible to easily adjust them according to the height requirements of different construction stages. When the construction height changes, the supports often need to be disassembled and reassembled, increasing construction steps and reducing efficiency. Second, their overall stability is poor. Some protective supports have unreasonable support structure designs, relying solely on the columns for load-bearing without effective lateral reinforcement. Under wind or lateral forces during construction, they are prone to tilting or even collapse, posing significant safety hazards. Third, the reliability of assembly and connection is insufficient. The connection between the crossbars and columns of existing supports is mostly welding or simple plug-in joints. Welding results in fixed crossbar positions, preventing flexible adjustment, while simple plug-in joints are prone to loosening, affecting the overall rigidity of the support. Fourth, their functions are limited. Most protective supports only provide basic protection and lack convenient auxiliary functions, such as protective netting suspension structures, requiring additional components and increasing construction complexity.
[0004] Furthermore, the connection between the columns and the foundation structure of traditional protective supports is insufficiently strong, and loosening may occur at the connection under long-term loads, further affecting the stability of the support. These problems not only restrict the improvement of construction efficiency, but also threaten the lives of construction workers, making it difficult to meet the demands of modern bridge construction for efficient, safe, and flexible protective supports.
[0005] Therefore, in view of the problems of poor flexibility, insufficient stability and unreliable connection of existing protective supports, there is an urgent need to develop a protective support for bridge construction that is highly adjustable in height, highly stable and firmly connected, so as to ensure the safety and efficiency of bridge construction. Utility Model Content
[0006] To overcome the aforementioned deficiencies of the prior art, this utility model provides a protective support for bridge construction, thereby addressing the problems existing in the background art. The protective support for bridge construction of this utility model, through its flexible height adjustment structure, robust connection design, enhanced overall stability, and practical functional integration, effectively solves the problems of poor flexibility, insufficient stability, and inconvenient assembly and disassembly of existing protective supports, significantly improving construction efficiency and safety assurance levels. It possesses high practical value and significant potential for widespread application.
[0007] This utility model provides the following technical solution: a protective support for bridge construction, characterized in that it includes a circular column, a sliding seat movably connected to the side of the circular column, a threaded insert fixedly connected to the side of the sliding seat, external threads at both ends of a metal crossbar, and the internal threads of the insert connected to both ends of the metal crossbar. One or more sets of diagonal bracing plates are movably connected between the sides of the circular column by bolts. A hanging rod is fixedly connected to the top of the circular column. The circular column serves as the main load-bearing part of the protective support. The sliding seat can slide on the circular column to adjust the height of the metal crossbar to adapt to different construction needs. The internal threads of the insert connect to the metal crossbar, allowing the end of the metal crossbar to rotate and be fixed within the insert. The diagonal bracing plates are used to increase the overall stability of the protective support and prevent it from tilting or collapsing. The hanging rod is used to suspend the construction safety net to protect workers' safety and prevent them from falling.
[0008] According to the utility model, a protective support for bridge construction is characterized in that: a flange is fixedly connected to the bottom of the circular support column, and a flange connecting plate is welded and fixedly connected to the top of the flange. The flange has flange mounting holes. The flange serves as a connector between the circular support column and the foundation structure. Through the flange mounting holes, a stable connection between the circular support column and adjacent circular support columns is achieved, ensuring the vertical stability and overall rigidity of the support during construction and preventing the support from tilting or displacing due to external forces. The flange connecting plate plays a reinforcing role. At the same time, a hanging rod is also welded and fixed to the flange.
[0009] According to the utility model, a protective support for bridge construction is characterized in that: the slide consists of an arc-shaped slide body that can cover a circular support column and a fastener. The arc-shaped slide body and the fastener are respectively provided with screw holes. The slide is locked onto the circular support column by screws. The arc-shaped slide body can slide flexibly on the circular support column. At the same time, the design of the fastener makes the adjustment and locking of the slide simple and convenient, thus improving construction efficiency.
[0010] The protective support for bridge construction provided by this utility model has the following significant advantages compared with the prior art:
[0011] Firstly, the structure is highly flexible and adaptable to diverse construction needs. The protective bracket achieves flexible height adjustment of the metal crossbar through a movable connection structure between the sliding block and the circular support column. The arc-shaped sliding block can slide freely on the circular support column, and with the locking mechanism of the fasteners and screws, it can be quickly fixed at the required height. It can adapt to the height requirements of different construction stages without disassembly and reassembly, greatly simplifying the adjustment process and improving construction efficiency. Simultaneously, the threaded connection design at both ends of the metal crossbar with internally threaded inserts allows for flexible adjustment of the horizontal installation position and length of the crossbar, further enhancing the bracket's adaptability to complex construction scenarios.
[0012] Secondly, it boasts excellent overall stability, ensuring construction safety. The flange at the bottom of the circular support column is securely connected to the foundation structure through flange mounting holes. Combined with the reinforcement effect of the flange connecting plate, this effectively enhances the connection strength between the column and the foundation, ensuring the vertical stability of the support under long-term loads and preventing tilting or displacement due to external forces. Furthermore, one or more sets of diagonal bracing plates connecting the sides of the circular support column significantly enhance the overall rigidity of the support. Under the influence of wind and lateral construction forces, it effectively disperses loads, resists deformation, reduces the risk of support collapse, and provides reliable safety protection for construction personnel.
[0013] Thirdly, the connection is robust and reliable, facilitating disassembly and maintenance. The slide block achieves a tight lock with the round support column through the cooperation of the snap-fit parts and the screw, ensuring both convenient sliding adjustment and stability after fixing, preventing the slide block from loosening during construction. The threaded connection between the metal crossbar and the insert is not only secure but also facilitates quick disassembly and replacement, reducing auxiliary time during construction. This modular connection design makes the assembly, adjustment, and subsequent maintenance of the bracket simpler, reducing the operational difficulty for construction personnel.
[0014] Fourth, the functional design is practical and enhances protective effectiveness. The hanging rods fixed to the top of the round support column and the flange allow for direct hanging of the construction safety net, eliminating the need for additional auxiliary components. This simplifies the construction process of protective facilities, effectively preventing workers from falling and materials from dropping, thus enhancing the comprehensiveness of protection. The integrated design of multiple functions allows the support system to provide basic support while also offering safety protection, improving its overall usability.
[0015] In summary, the protective support for bridge construction of this utility model effectively solves the problems of poor flexibility, insufficient stability, and inconvenient assembly and disassembly of existing protective supports through its flexible height adjustment structure, stable connection design, enhanced overall stability, and practical functional integration. It significantly improves construction efficiency and safety assurance level, and has high practical value and promotion significance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the circular support structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the slide structure of this utility model. Detailed Implementation
[0019] The following will refer to the appendix of this utility model. Figures 1-3 The technical solutions of this utility model will be clearly and completely described. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The protective support for bridge construction involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] This utility model provides a protective support for bridge construction, referring to... Figures 1-3 The following can be implemented: A circular support column 1 is included, with a sliding block 2 movably connected to the side of the circular support column 1. A threaded insert 3 is fixedly connected to the side of the sliding block 2. A metal crossbar 4 has external threads at both ends. The internal threads of the insert 3 are connected to both ends of the metal crossbar 4. One or more sets of diagonal bracing plates 5 are movably connected between the sides of the circular support column 1 via bolts. A hanging rod 101 is fixedly connected to the top of the circular support column 1. The circular support column 1 serves as the main load-bearing part of the protective support. The sliding block 2 can slide on the circular support column 1 to adjust the height of the metal crossbar 4 to adapt to different construction needs. The internal threads of the insert 3 connect to the metal crossbar 4, allowing the end of the metal crossbar 4 to rotate and be fixed within the insert 3. The diagonal bracing plates 5 are used to increase the overall stability of the protective support 1, preventing it from tilting or collapsing. The hanging rod 101 can be used to suspend the construction safety net to protect workers and prevent them from falling.
[0021] The circular support column 1 is fixedly connected to a flange 104 at its bottom, and a flange connecting plate 102 is welded and fixedly connected to the top of the flange 104. The flange 104 has flange mounting holes 103. As a connecting component between the circular support column 1 and the foundation structure, the flange 104 achieves a stable connection between the circular support column 1 and other circular support columns 1 through the flange mounting holes 103, ensuring the vertical stability and overall rigidity of the support during construction and preventing the support from tilting or displacing due to external forces. The flange connecting plate 102 plays a reinforcing role. A hanging rod 101 is also welded and fixed to the flange 104.
[0022] The slide block 2 consists of an arc-shaped slide block body 201 that can cover the circular support column 1 and a fastener 202. The arc-shaped slide block body 201 and the fastener 202 are respectively provided with screw holes. The slide block 2 is locked onto the circular support column 1 by screws 203. The arc-shaped slide block body can slide flexibly on the circular support column 1. At the same time, the design of the fastener 201 makes the adjustment and locking of the slide block 2 simple and convenient, improving construction efficiency.
[0023] In the implementation of this utility model: the circular support column 1 serves as the core support of the entire support structure. It is firmly connected to the foundation structure through the flange 104 at the bottom and the flange mounting hole 103 on it, ensuring the vertical stability of the support. The addition of the flange connecting plate 102 further enhances the strength and sealing of the connection. Then, the slide 2 slides flexibly on the circular support column 1 through the adjustment mechanism of the buckle 201 and the screw 202 to adapt to the needs of different construction heights. At the same time, it allows the metal crossbar 4 to be flexibly changed in the horizontal direction. The setting of the diagonal brace 5 further enhances the overall stability of the support. Especially under the action of wind or lateral force, the diagonal brace 5 can effectively disperse and resist these forces, protecting the safety of the support and construction personnel.
[0024] The implementation process of the protective support for bridge construction provided by this utility model in practical applications is as follows:
[0025] I. Support Installation Stage: First, determine the protection zone of the bridge construction area and select a suitable installation location. Align the flange 104 at the bottom of the circular support column 1 with the foundation structure (such as bridge deck embedded parts or ground base). Securely fix the circular support column 1 with bolts through the flange mounting holes 103 on the flange 104, ensuring that the circular support column 1 is perpendicular to the foundation structure. The flange connecting plate 102 is fixed to the flange 104 by welding, further enhancing the strength of the connection and preventing the circular support column 1 from tilting or shifting during subsequent use.
[0026] Next, install the slide block 2 and the metal crossbar 4. Wrap the arc-shaped slide block body 201 around the side of the circular support column 1, and engage the buckle 202 to initially fix the slide block 2 onto the circular support column 1 (do not tighten the screw 203 yet). Slide the slide block 2 up and down to the appropriate position according to the required protection height. Then, insert the screw 203 through the screw holes on the slide block body 201 and the buckle 202 and tighten it to lock the slide block 2 onto the circular support column 1. Install the slide block 2 on another circular support column 1 following the same steps. Then, align the external threads at both ends of the metal crossbar 4 with the internally threaded inserts 3 on the sides of the two slide blocks 2. Rotate the metal crossbar 4 so that both ends are screwed into the corresponding inserts 3 until tightened and fixed, completing the horizontal connection of the metal crossbar 4.
[0027] Next, install the diagonal bracing plates 5. Depending on the stability requirements of the support, one or more sets of diagonal bracing plates 5 are bolted between the sides of two adjacent round pillars 1 to ensure that the diagonal bracing plates 5 are tightly fitted to the round pillars 1, thereby further enhancing the overall rigidity of the support.
[0028] Finally, the protective netting is suspended using the hanging rod 101. The hooks of the construction protective netting are hung on the hanging rod 101 on the top of the round support column 1 and the flange 104 to ensure that the protective netting covers the entire construction protection area and forms an effective safety protection barrier.
[0029] II. Bracket Adjustment Stage:
[0030] During construction, if the height of the protective structure needs to be adjusted, first loosen the screw 203 on the slide block 2, open the buckle 202, slide the slide block 2 along the circular support column 1 to the new height position, then close the buckle 202 again and tighten the screw 203 to complete the adjustment of the height of the metal crossbar 4. If the horizontal length or position of the metal crossbar 4 needs to be adjusted, the metal crossbar 4 can be rotated so that its two ends are screwed into or out of the insert 3 until the required length is reached, or the connection between the insert 3 and the metal crossbar 4 can be loosened, and a metal crossbar 4 of different length can be replaced and reconnected and fixed.
[0031] III. Use and Maintenance of the Support System:
[0032] During the use of the support structure, regularly check the tightness of all connections, including the bolts connecting flange 104 to the foundation structure, the screws 203 on the slide block 2, the connection between the metal crossbar 4 and the insert 3, and the bolts connecting the diagonal brace 5 and the circular support column 1. If any looseness is found, tighten them promptly to ensure the overall stability of the support structure. At the same time, check whether the connection between the protective net and the hanging rod 101 is secure. If the protective net is damaged or loose, repair or replace it promptly to ensure effective protection.
[0033] IV. Bracket disassembly stage:
[0034] After construction is completed, first remove the protective netting from the hanging rod 101. Then loosen the connecting bolts between the diagonal brace 5 and the circular support column 1, and remove the diagonal brace 5. Next, rotate the metal crossbar 4 so that both ends unscrew from the insert 3, separating the metal crossbar 4 from the slide block 2. Then loosen the screw 203 on the slide block 2, open the fastener 202, and remove the slide block 2 from the circular support column 1. Finally, loosen the connecting bolts between the flange 104 and the foundation structure, remove the circular support column 1 from the foundation structure, and complete the disassembly of the entire support. The disassembled parts can be stored separately for future reuse.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A protective support for bridge construction, characterized in that; The system includes a circular support column, with a sliding block movably connected to the side of the column. A threaded insert is fixedly connected to the side of the sliding block. Both ends of a metal crossbar have external threads. The internal threads of the insert connect to both ends of the metal crossbar. One or more sets of diagonal bracing plates are movably connected between the sides of the circular support column via bolts. A hanging rod is fixedly connected to the top of the circular support column. The circular support column serves as the main load-bearing component of the protective support system. The sliding block can slide on the circular support column. The internal threads of the insert connect to the metal crossbar, allowing the end of the metal crossbar to rotate and be fixed within the insert. The diagonal bracing plates increase the overall stability of the protective support system, preventing it from tilting or collapsing. The hanging rod is used to suspend the construction safety net.
2. The protective support for bridge construction according to claim 1, characterized in that; A flange is fixedly connected to the bottom of the circular support column, and a flange connecting plate is welded and fixedly connected to the top of the flange. The flange has flange mounting holes. The flange serves as a connector between the circular support column and the foundation structure. Through the flange mounting holes, a stable connection between the circular support column and adjacent circular supports is achieved. The flange connecting plate plays a reinforcing role. At the same time, a hanging rod is also welded and fixed to the flange.
3. The protective support for bridge construction according to claim 1, characterized in that; The slide consists of an arc-shaped slide body that can cover the circular support column and a fastener. The arc-shaped slide body and the fastener are respectively provided with screw holes. The slide is locked onto the circular support column by screws. The arc-shaped slide body can slide flexibly on the circular support column.