Punching-free fixing tool for bridge protection wall

By designing a drilling-free fixing fixture for bridge protective walls, and utilizing limit connections and reinforcing clamping components, the formwork can be quickly reinforced and installed. This solves the problems of concrete damage and increased construction costs caused by drilling in existing technologies, and improves installation convenience and waterproofing effect.

CN224031504UActive Publication Date: 2026-03-24CHINA RAILWAY 24TH BUREAU GRP BRIDGE & CONSTR CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing bridge retaining wall formwork fixing processes require drilling holes and installing reinforcing bars on the beam surface, which leads to damage to the concrete structure and increased construction costs. In particular, it is difficult to achieve a complete waterproof effect when using thin-coat waterproofing coatings.

Method used

A bridge protective wall fixing fixture without drilling was designed, including a fixing and installation mechanism, a limiting connection component, a reinforcing and locking component, a pressing component, and a screw-in fixing mechanism. It is fixed to the bridge surface through the limiting connection and reinforcing and locking, and the template is quickly reinforced and installed by the reinforcing and tightening component and the screw-in pressing component, avoiding damage caused by drilling.

Benefits of technology

It enables the rapid and convenient installation of bridge protective wall formwork, avoiding damage to concrete and waterproof structures, and improving installation convenience and waterproofing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bridge protection wall punching-free fixing tool which comprises a fixing tool body, the fixing tool body comprises a bridge surface body, a protection wall formwork is arranged on the upper surface of the bridge surface body, and a reinforcing main screw rod is installed at the top end of the protection wall formwork through a main nut; by designing a fixed mounting mechanism, after a connecting steel plate is limited and mounted on the outer side of a protective wall formwork, channel steel is limited and closed above a bridge surface body through fixed square steel and the connecting steel plate, and a reinforcing wood plate and a jacking wood plate are clamped and mounted at the joint of the side face of the channel steel and the bottom end of the side face of the protective wall formwork for extrusion reinforcing mounting; and on the inner side of the protective wall formwork, the auxiliary jacking screws and the jacking blocks are movably extruded on the surface of the inner side of the protective wall formwork to be reinforced and installed, so that the fixing tool body is conveniently and rapidly reinforced and installed without punching, and concrete and an internal waterproof structure are not prone to being damaged.
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Description

Technical Field

[0001] This utility model belongs to the field of fixed tooling technology, specifically relating to a non-drilling fixed tooling for bridge protective walls. Background Technology

[0002] Bridge guardrails are protective walls installed on both sides of the road on bridges. The bridge guardrails are formed by pouring concrete and installing guardrail formwork. The formwork is usually fixed by fixing fixtures. The existing fixing fixtures are fixing devices used to fix the bridge guardrail formwork, which can be used for direct fixing without drilling.

[0003] Existing traditional methods for fixing bridge retaining wall formwork often involve drilling holes in the beam surface and installing reinforcing bars. This not only damages the bridge's concrete structure but also increases the grouting and hole-filling process and construction costs. Especially when the bridge deck waterproofing is designed with a thin-coat waterproofing layer, the requirements for the fullness of the hole filling and the flatness of the top surface are extremely high compared to the concrete waterproofing layer. Even after waterproofing treatment, a complete waterproofing effect cannot be achieved, thus affecting the convenience of fixing fixtures for drilling-free installation of bridge retaining walls. Therefore, this utility model proposes a drilling-free fixing fixture for bridge retaining walls. Utility Model Content

[0004] The purpose of this utility model is to provide a drilling-free fixing fixture for bridge protective walls, in order to solve the problem mentioned in the background art that the traditional fixing process of bridge protective wall templates often involves drilling holes in the beam surface and installing rebar, which not only damages the concrete structure of the bridge, but also increases the process and construction cost of grouting and hole filling. Especially when the bridge deck waterproofing is designed as a thin-coat waterproofing coating, the requirements for the fullness of the hole filling and the flatness of the top surface are extremely high compared to the concrete waterproofing layer, and even after waterproofing treatment, the complete waterproofing effect is still not achieved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bridge protective wall fixing fixture without drilling, comprising a main body of the fixing fixture, the main body of the fixing fixture including a bridge surface, a protective wall template being provided on the upper surface of the bridge surface, and a reinforcing main threaded rod being installed at the top of the protective wall template via a main nut; the fixing fixture main body is also provided with:

[0006] A fixed installation mechanism is provided, and the fixed installation mechanism includes a limiting connection component disposed on the outer side of the protective wall template and located on the upper surface of the bridge surface. A reinforcing engagement component is provided at the connection between the lower end surface of the limiting connection component and the interior of the bridge surface. A pressing component is provided at the connection between the side of the limiting connection component and the side of the protective wall template. A reinforcing tightening component is provided on the inner side of the protective wall template located on the upper surface of the bridge surface.

[0007] A screw-in fixing mechanism, wherein the screw-in fixing mechanism includes a screw-in extrusion assembly disposed inside the clamping assembly.

[0008] Preferably, the limiting connecting assembly comprises a groove-shaped steel arranged on the upper surface of the bridge surface body outside the protective wall formwork, the lower surface of the groove-shaped steel is provided with a connecting steel plate, the end of the connecting steel plate is welded with a fixed square steel, and the side surface of the groove-shaped steel is in contact with the surface of the fixed square steel.

[0009] Preferably, the reinforcing clamping assembly comprises a round steel pipe welded and fixed on the lower surface of the other end of the connecting steel plate, the side surface of the round steel pipe is welded and fixed with a limiting short steel bar, the surface of the bridge surface body is equidistantly provided with a reserved hole, and the round steel pipe is matched with the internal structure of the limiting short steel bar and the reserved hole.

[0010] Preferably, the pressing assembly comprises a tightening wooden plate arranged at the bottom end of the side surface of the protective wall formwork, and a reinforcing wooden plate is clamped and installed at the side surface connecting portion of the groove-shaped steel of the tightening wooden plate.

[0011] Preferably, the reinforcing and tightening assembly comprises connecting steel bars equidistantly poured on the upper surface of the bridge surface body, a connecting plate is welded at the connecting portion of the two connecting steel bars, an auxiliary tightening screw rod penetrates through the inside of the connecting plate, one end of the auxiliary tightening screw rod is threadedly connected with an auxiliary nut on the surface of the connecting plate, the other end of the auxiliary tightening screw rod is fixed with a top block, and the end of the top block is in extrusion contact with the surface of the protective wall formwork.

[0012] Preferably, the auxiliary tightening screw rod is threadedly and rotationally connected with the connecting steel bar through the connecting plate and the auxiliary nut, and the inner surface of the connecting plate and the surface of the protective wall formwork are tightly and reinforcedly installed through the auxiliary tightening screw rod.

[0013] Preferably, the screwing and extruding assembly comprises a reinforcing plate fixedly installed on the upper surface of the reinforcing wooden plate through a mounting bolt, an adjusting screw rod is threadedly connected in the inside of the reinforcing plate, an inner inclined groove is formed in the inside of the tightening wooden plate, a trapezoidal push plate is installed on the end of the adjusting screw rod in the inside of the inner inclined groove through a bearing, and the side surface of the trapezoidal push plate is in extrusion contact with the inner surface of the inner inclined groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By designing the fixed mounting mechanism, the connecting steel plate can be limitedly installed on the outside of the protective wall formwork, the channel steel is closed above the bridge surface body through the fixed square steel and the limited connecting steel plate, the side of the channel steel is clamped and installed with the reinforcing wood plate and the pressing wood plate extrusion reinforcing installation, thereby reinforcing and installing the outside of the protective wall formwork, the inside of the protective wall formwork, the auxiliary pressing screw rod and the top block are moved and extruded on the inside surface of the protective wall formwork, the fixed tool main body is convenient for non-perforation quick reinforcing installation, the concrete is not easy to be damaged, the internal waterproof structure is improved, and the convenience of non-perforation reinforcing installation of the fixed tool main body in the installation of the bridge protective wall is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the utility model;

[0018] Figure 3 It is a structural schematic view of the utility model;

[0019] Figure 4 It is a structural schematic view of the utility model Figure 2 It is a structural schematic view of the utility model;

[0020] Figure 5 It is a structural schematic view of the utility model Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 6 It is a structural schematic view of the utility model;

[0022] In the drawing: 100, fixed tool main body; 101, bridge surface body; 1011, channel steel; 1012, connecting steel plate; 1013, round steel pipe; 1014, reserved hole; 1015, limiting short steel bar; 1016, fixed square steel; 1017, reinforcing wood plate; 1018, pressing wood plate; 102, protective wall formwork; 1021, connecting steel bar; 1022, connecting plate; 1023, auxiliary nut; 1024, auxiliary pressing screw rod; 1025, top block; 103, reinforcing main screw rod; 104, reinforcing plate; 1041, adjusting screw rod; 1042, built-in inclined surface groove; 1043, trapezoidal push plate. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Please refer to Figures 1 to 6 The present application provides a technical solution: bridge protection wall hole-free fixing tool, comprising a fixing tool main body 100, the fixing tool main body 100 comprises a bridge surface body 101, the upper surface of the bridge surface body 101 is provided with a protection wall formwork 102, the top end of the protection wall formwork 102 is provided with a reinforcing main screw 103 through a main nut, and the fixing tool main body 100 is further provided with:

[0025] The fixing installation mechanism comprises a limiting connection assembly arranged outside the protection wall formwork 102 on the upper surface of the bridge surface body 101, a reinforcing clamping assembly is arranged at the lower surface of the end portion of the limiting connection assembly and the inner connection portion of the bridge surface body 101, a pressing assembly is arranged at the side surface of the limiting connection assembly and the side surface connecting portion of the protection wall formwork 102, a reinforcing tightening assembly is arranged at the inner side of the protection wall formwork 102 on the upper surface of the bridge surface body 101, the inner and outer sides of the protection wall formwork 102 can be fixed and installed by the fixing installation mechanism during installation and use, the fixing installation is convenient, the hole-free rapid reinforcing installation is convenient, and the concrete is not easy to be damaged and the internal waterproof structure is not easy to be damaged, so that the waterproof use is effectively installed.

[0026] In order to facilitate the limiting and fixing installation of the channel steel 1011 through the limiting connection assembly, preferably, in the embodiment, the limiting connection assembly comprises a channel steel 1011 arranged outside the protection wall formwork 102 on the upper surface of the bridge surface body 101, the lower surface of the channel steel 1011 is provided with a connecting steel plate 1012, the end portion of the connecting steel plate 1012 is welded with a fixed square steel 1016, and the side surface of the channel steel 1011 is in contact with the surface of the fixed square steel 1016, so that after the limiting installation of the connecting steel plate 1012, the channel steel 1011 is closed on the surface of the connecting steel plate 1012, and the fixed square steel 1016 is used as the back rib of the channel steel 1011 along the bridge, and the force is transmitted to the circular steel pipe 1013 for reinforcing installation through the connecting steel plate 1012 after being stressed.

[0027] In order to facilitate the installation of the connecting steel plate 1012 by the reinforcing clamping assembly, in the embodiment, preferably, the reinforcing clamping assembly comprises a round steel pipe 1013 welded and fixed on the lower surface of the other end of the connecting steel plate 1012, a limiting short steel bar 1015 welded and fixed on the side surface of the round steel pipe 1013, and a reserved hole 1014 equidistantly formed on the surface of the bridge surface body 101, and the internal structure of the round steel pipe 1013, the limiting short steel bar 1015 and the reserved hole 1014 are consistent with each other, so that the round steel pipe 1013 and the limiting short steel bar 1015 can be clamped and reinforced in the inside of the reserved hole 1014, and the limiting short steel bar 1015 can be simply limited by the limiting short steel bar 1015 to prevent the limiting short steel bar 1015 from being inserted and deviated under stress.

[0028] In order to facilitate the installation of the connecting steel plate 1012 by the reinforcing clamping assembly, in the embodiment, preferably, the reinforcing clamping assembly comprises a round steel pipe 1013 welded and fixed on the lower surface of the other end of the connecting steel plate 1012, a limiting short steel bar 1015 welded and fixed on the side surface of the round steel pipe 1013, and a reserved hole 1014 equidistantly formed on the surface of the bridge surface body 101, and the internal structure of the round steel pipe 1013, the limiting short steel bar 1015 and the reserved hole 1014 are consistent with each other, so that the round steel pipe 1013 and the limiting short steel bar 1015 can be clamped and reinforced in the inside of the reserved hole 1014, and the limiting short steel bar 1015 can be simply limited by the limiting short steel bar 1015 to prevent the limiting short steel bar 1015 from being inserted and deviated under stress.

[0029] In order to facilitate the installation of the connecting steel plate 1012 by the reinforcing clamping assembly, in the embodiment, preferably, the reinforcing clamping assembly comprises a round steel pipe 1013 welded and fixed on the lower surface of the other end of the connecting steel plate 1012, a limiting short steel bar 1015 welded and fixed on the side surface of the round steel pipe 1013, and a reserved hole 1014 equidistantly formed on the surface of the bridge surface body 101, and the internal structure of the round steel pipe 1013, the limiting short steel bar 1015 and the reserved hole 1014 are consistent with each other, so that the round steel pipe 1013 and the limiting short steel bar 1015 can be clamped and reinforced in the inside of the reserved hole 1014, and the limiting short steel bar 1015 can be simply limited by the limiting short steel bar 1015 to prevent the limiting short steel bar 1015 from being inserted and deviated under stress.

[0030] The rotating-in fixing mechanism comprises a rotating-in extrusion assembly arranged in the inside of the pressing assembly, so that after the reinforcing wood plate 1017 and the tight wood plate 1018 are pressed and installed on the outside of the protective wall formwork 102, the rotating-in fixing mechanism can extrude and reinforce the reinforcing wood plate 1017 and the tight wood plate 1018, so that the installation is always fixed and reinforced, and is not easy to be loosened and deformed.

[0031] To facilitate the compression and reinforcement installation between the reinforcing wooden board 1017 and the top-tightening wooden board 1018 using the screw-in compression assembly, and to make the installation easier, in this embodiment, preferably, the screw-in compression assembly includes a reinforcing plate 104 fixedly mounted on the upper surface of the reinforcing wooden board 1017 by mounting bolts. The reinforcing plate 104 has an adjusting screw 1041 threadedly connected inside. The top-tightening wooden board 1018 has a built-in inclined groove 1042 on its inner side. The end of the adjusting screw 1041 is located inside the built-in inclined groove 1042 and a trapezoidal push plate 1043 is mounted on it via a bearing. The side of the trapezoidal push plate 1043 is in compression contact with the inner surface of the built-in inclined groove 1042. The adjusting screw 1041 can be rotated to move the trapezoidal push plate 1043 downward, so that when the trapezoidal push plate 1043 moves downward, it presses against the inner surface of the built-in inclined groove 1042 to compress and reinforce the reinforcing wooden board 1017 and the top-tightening wooden board 1018.

[0032] The working principle and usage process of this utility model: When using this bridge protective wall fixing fixture that requires no drilling, the protective wall template 102 is placed on the surface of the bridge surface 101 and fixed. On the outside of the protective wall template 102, the round steel pipe 1013 and the limiting short steel bar 1015 are engaged inside the reserved hole 1014. The connecting steel plate 1012 and the fixing square steel 1016 are then closed and installed on the surface of the bridge surface 101. Finally, the channel steel 1011 is closed and limited by the fixing square steel 1016 onto the bridge surface. Above 101, on the surface of the connecting steel plate 1012, the fixed square steel 1016 serves as the back rib of the longitudinal reinforcement I-beam. The reinforcing wooden board 1017 and the top wooden board 1018 are then clamped and installed at the connection between the side of the channel steel 1011 and the bottom of the side of the protective wall template 102 for compression reinforcement. Thus, the round steel pipe 1013 and the channel steel 1011 are connected as a whole, which improves the overall rigidity. After being subjected to force, the force is transmitted to the round steel pipe 1013 through the connecting steel plate 1012, thereby reinforcing the outer side of the protective wall template 102.

[0033] Again, rotate the auxiliary nut 1023 on the inner side of the protective wall template 102, on the surface of the connecting plate 1022, which is located on the outer surface of the auxiliary tightening screw 1024. When the auxiliary nut 1023 is rotated on the threaded end surface of the auxiliary tightening screw 1024, the auxiliary tightening screw 1024 and the top block 1025 are moved and adjusted until the top block 1025 is moved and pressed against the inner surface of the protective wall template 102. This facilitates the reinforcement and installation of the inner side of the protective wall template 102, making the fixing fixture body 100 easy to install quickly without drilling. The installation is convenient and does not easily damage the concrete and internal waterproof structure. It is effective for waterproof installation and improves the convenience of drilling-free reinforcement installation of the fixing fixture body 100 when installing bridge protective walls.

[0034] Finally, when the main body 100 of the fixing fixture is fixed and installed, and when the reinforcing wooden board 1017 and the top tightening wooden board 1018 are pressed against the side of the channel steel 1011 and the protective wall template 102, if the reinforcing wooden board 1017 and the top tightening wooden board 1018 become loose due to friction deformation after long-term use, the adjusting screw 1041 can be rotated to push the trapezoidal push plate 1043 to press against the inner surface of the built-in inclined groove 1042 until the top tightening wooden board 1018 is pressed against the surface of the protective wall template 102. At the same time, the reinforcing wooden board 1017 is pressed and reinforced against the side of the channel steel 1011. This makes it convenient to adjust and reinforce the installation even when the reinforcing wooden board 1017 and the top tightening wooden board 1018 are pressed for a long time, and it is always fixed. This improves the convenience of adjusting the pressing and reinforcement installation between the reinforcing wooden board 1017 and the top tightening wooden board 1018 when installing the bridge protective wall.

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge retaining wall fixing fixture without drilling, comprising a fixture body (100), wherein the fixture body (100) includes a bridge surface (101), a retaining wall template (102) is provided on the upper surface of the bridge surface (101), and a reinforcing main thread (103) is installed on the top of the retaining wall template (102) through a main nut, characterized in that: The fixed tooling body (100) is also provided with: The fixed installation mechanism includes a limiting connection component located on the upper surface of the bridge surface (101) on the outside of the protective wall template (102). A reinforcing locking component is provided at the connection between the lower end surface of the limiting connection component and the inside of the bridge surface (101). A pressing component is provided at the connection between the side of the limiting connection component and the side of the protective wall template (102). A reinforcing tightening component is provided on the inner side of the protective wall template (102) located on the upper surface of the bridge surface (101). A screw-in fixing mechanism, wherein the screw-in fixing mechanism includes a screw-in extrusion assembly disposed inside the clamping assembly.

2. The bridge protective wall fixing fixture without drilling as described in claim 1, characterized in that: The limiting connection assembly includes a channel steel (1011) disposed on the upper surface of the bridge surface (101) outside the protective wall template (102). A connecting steel plate (1012) is disposed on the lower surface of the channel steel (1011). A fixed square steel (1016) is welded to the end of the connecting steel plate (1012), and the side of the channel steel (1011) is in contact with the surface of the fixed square steel (1016).

3. The bridge protective wall fixing fixture without drilling according to claim 2, characterized in that: The reinforcing clamping assembly includes a round steel pipe (1013) welded and fixed to the lower surface of the other end of the connecting steel plate (1012). A limiting short steel bar (1015) is welded and fixed to the side of the round steel pipe (1013). The surface of the bridge surface (101) is provided with reserved holes (1014) at equal intervals. The internal structure of the round steel pipe (1013) matches the limiting short steel bar (1015) and the reserved holes (1014).

4. The bridge protective wall fixing fixture without drilling according to claim 2, characterized in that: The clamping assembly includes a top clamping board (1018) set at the bottom of the side of the protective wall template (102), and a reinforcing board (1017) is engaged at the connection between the side of the top clamping board (1018) and the side of the channel steel (1011).

5. The bridge protective wall fixing fixture without drilling according to claim 1, characterized in that: The reinforcing and tightening assembly includes connecting steel bars (1021) cast at equal intervals on the upper surface of the bridge surface (101). A connecting plate (1022) is welded at the connection of two connecting steel bars (1021). An auxiliary tightening screw (1024) runs through the interior of the connecting plate (1022). One end of the auxiliary tightening screw (1024) is threaded with an auxiliary nut (1023) on the surface of the connecting plate (1022). The other end of the auxiliary tightening screw (1024) is fixed with a top block (1025). The end of the top block (1025) presses against the surface of the protective wall template (102).

6. The bridge protective wall fixing fixture without drilling according to claim 5, characterized in that: The auxiliary tightening screw (1024) and the connecting steel bar (1021) are connected by the threaded rotation of the connecting plate (1022) and the auxiliary nut (1023), and the inner surface of the connecting plate (1022) and the surface of the protective wall template (102) are tightened and reinforced by the auxiliary tightening screw (1024).

7. The bridge protective wall drilling-free fixing fixture according to claim 4, characterized in that: The screw-in extrusion assembly includes a reinforcing plate (104) fixedly mounted on the upper surface of the reinforcing wooden board (1017) by mounting bolts. An adjusting screw (1041) is threadedly connected to the inside of the reinforcing plate (104). An internal inclined groove (1042) is provided on the inner side of the tightening wooden board (1018). The end of the adjusting screw (1041) is located inside the internal inclined groove (1042) and a trapezoidal push plate (1043) is mounted on it by bearing. The side of the trapezoidal push plate (1043) is in extrusion contact with the inner surface of the internal inclined groove (1042).