Highway bridge sign fixing device

By using a three-point support and locking mechanism consisting of a frame and a cement guardrail clamping system, the problem of temporary signs on bridges easily tipping over is solved. This ensures that the signs are securely held in strong winds and by high-speed vehicles, improving installation convenience and service life.

CN224031529UActive Publication Date: 2026-03-24HUBEI PROVINCE FREEWAY IND DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Temporary signs are prone to tipping over when used on bridges or road sections due to their unstable center of gravity and the influence of wind or vehicle airflow. Existing solutions, such as balancing tools, are difficult to apply to concrete guardrails, and the use of counterweight materials is inconvenient, resulting in insufficient stability.

Method used

The system employs a frame and cement railing clamping mechanism, combined with a three-point force-bearing support structure consisting of clamping plates, square rods, guide cylinders, screw rods, and push rods. This, along with a fixing mechanism using locking screws and pressure plates, ensures that the sign is securely clamped onto the cement railing. The ring-shaped locking screws and top-tightening screws enhance installation convenience, while rubber pads increase friction to prevent shaking.

Benefits of technology

Under strong winds or when vehicles are traveling at high speeds, the probability of the sign tipping over is greatly reduced, its stability is significantly improved, installation and disassembly are convenient, its service life is extended, and its warning effect is ensured to remain effective.

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Abstract

The utility model relates to the technical field of highway construction, in particular to a highway bridge sign fixing device which comprises two frames and a cement guardrail, clamping mechanisms used for being clamped on the cement guardrail are installed on the two frames, the side face of one frame is fixedly connected with the side face of a fixing cylinder, and the side face of the other frame is fixedly connected with the side face of the fixing cylinder. A label fixing mechanism is mounted on the fixing cylinder; the clamping mechanism comprises a clamping plate, square rods, guide cylinders, a lead screw, a rotating seat and a push rod, the three guide cylinders are fixedly installed on the side face of the upper end of one frame, the square rods are slidably installed in the three guide cylinders, and the ends, located on the outer sides of the guide cylinders, of the three square rods are fixedly connected with the side face of the upper end of the other frame; according to the highway bridge sign fixing device, a highway sign can be stably clamped and fixed to a cement guardrail, and it is guaranteed that the sign is stable when used on a bridge section.
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Description

TECHNICAL FIELD

[0001] The utility model relates to road construction technical field, concretely is a road bridge signboard fixing device. BACKGROUND

[0002] In the scene such as highway construction, maintenance and special event processing, the installation of temporary signboard is very important, it can provide timely and accurate warning and guiding information for passing vehicles and pedestrians, the common temporary signboard adopts the structure of cross-shaped base plus steel pipe standing board, this structure is simple to make, but when using, due to the high gravity center, under the impact of airflow or wind formed by vehicle driving, it is easy to incline or fall, leading to the warning effect is greatly discounted, in order to prevent the influence of temporary signboard falling or inclining, after signboard setting, counterweight is placed on the base, increases its stability when using (such as sandbag, stone or concrete block etc.), however, the counterweight material is moved to the installation site time-consuming and laborious, and cleaning counterweight material after use is also troublesome, and randomly discarding counterweight material can also cause damage to the surrounding environment, in addition, even if the counterweight is placed, under the action of strong airflow generated by strong wind or high-speed vehicle driving, temporary signboard still can shake or fall slightly due to unstable gravity center, it is difficult to fundamentally solve the problem. Although there are some on the market using holding tools to clamp temporary signboard on the corrugated guardrail, but in bridge section, the common holding device is difficult to apply to cement guardrail, leading to the problem that temporary signboard is still unstable and easy to fall when using in bridge section. SUMMARY

[0003] In view of the problems existing in the prior art, the utility model discloses a road bridge signboard fixing device, adopts the technical scheme, including frame and cement guardrail, the frame is equipped with two, two the frame is installed on the clamping mechanism for clamping on the cement guardrail, wherein one The side surface of the frame is fixedly connected with the side surface of the fixed cylinder, the fixed cylinder is installed with signboard fixing mechanism;

[0004] The clamping mechanism includes a clamping plate, a square rod, a guide cylinder, a lead screw, a rotating seat and a push rod, the guide cylinder is provided with three, the guide cylinder is fixedly installed on the side surface of one end of one frame, three square rods are slidably installed in the guide cylinder, one end of three square rods located outside the guide cylinder is fixedly connected with the side surface of the upper end of the other frame, the lead screw is rotatably installed in the guide cylinder, the lead screw is threadedly connected with the square rod on the end face of the middle part, the rotating seat is rotatably installed on the side surface of the upper end of one frame, the shaft on the end face of the rotating seat passes through the through hole on the side surface of the frame and the guide cylinder and is fixedly connected with one end of the lead screw, the push rod is movably installed in the through hole on the side surface of the rotating seat, the clamping plate is provided with two, two clamping plates are fixedly installed on the side surface of the lower end of two frames.

[0005] The sign fixing mechanism comprises a sign, a vertical rod, a fixing nut, a locking screw rod and a pressing plate, the side surface of the sign is fixedly connected with the side surface of the upper end of the vertical rod, the vertical rod is inserted into a fixing cylinder, two fixing nuts are fixedly installed on the side surface of the fixing cylinder, one end of the locking screw rod extends to the inside of the fixing cylinder through the screw hole on the side surface of the fixing nut, and the end of the locking screw rod in the fixing cylinder is rotationally connected with the side surface of the pressing plate, the pressing plate is arc-shaped, and the pressing plate and the fixing cylinder are matched to tightly press and fix the vertical rod.

[0006] As a preferred technical scheme of the utility model, one end of the locking screw rod and the top-up screw rod is annular structure.

[0007] As a preferred technical scheme of the utility model, the two ends of the push rod are spherical structure, and the diameter of the spherical structure of the two ends of the push rod is larger than the diameter of the through hole on the rotating seat.

[0008] As a preferred technical scheme of the utility model, a rubber pad is fixedly installed on the side surface of the pressing plate. The utility model discloses a sign fixing device for bridge road section, which comprises a frame, a clamping plate, a guide cylinder, a square rod, a push rod and a vertical rod, the frame is provided with a guide cylinder, the guide cylinder is provided with a square rod, the square rod is provided with a push rod, and the push rod is provided with a vertical rod.

[0009] 2, through the top-up screw rod, the clamping plate can be in stable contact with the uneven cement guardrail, the stability is improved, the locking screw rod and the top-up screw rod adopt annular structure, the staff can use tools or operate manually conveniently, and the convenience of installation and disassembly is improved.

[0010] 3, the spherical structure of the two ends of the push rod can prevent the push rod from accidentally falling off during use, ensure the safety and reliability of clamping operation, through the rubber pad on the side surface of the pressing plate, the friction between the vertical rod is increased, not only the vertical rod can be fixed better, but also damage to the surface of the vertical rod during the pressing process can be avoided, and the service life of the sign fixing device is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is overall structure schematic diagram of the utility model;

[0012] Figure 2It is a clamping mechanism structure schematic view of the utility model;

[0013] Figure 3 It is a label fixing mechanism structure schematic view of the utility model;

[0014] Figure 4 It is a use state schematic view of the utility model;

[0015] Figure 5 It is a pressing plate structure schematic view of the utility model.

[0016] In the drawing: 1 frame, 2 fixed cylinder, 3 clamping mechanism, 31 clamping plate, 32 square bar, 33 guide cylinder, 34 screw rod, 35 rotating seat, 36 push rod, 4 label fixing mechanism, 41 label, 42 vertical rod, 43 fixed nut, 44 locking screw rod, 45 pressing plate, 5 top pressing screw rod, 6 rubber pad, 7 cement guardrail. DETAILED DESCRIPTION

[0017] Example 1

[0018] As Figures 1 to 5 shown, the utility model discloses a highway bridge label fixing device, adopts the technical scheme, including frame 1 and cement guardrail 7, frame 1 is equipped with two, two frame 1 is installed for clamping on cement guardrail 7 on the clamping mechanism 3, wherein one frame 1 side and the side of fixed cylinder 2 fixed connection, fixed cylinder 2 is installed with label fixing mechanism 4;

[0019] The clamping mechanism 3 comprises clamping plates 31, square rods 32, guide cylinders 33, lead screws 34, rotating seats 35 and push rods 36, three guide cylinders 33 are fixedly installed on the side surface of the upper end of one of the frames 1, the square rods 32 are slidably installed in the three guide cylinders 33, the three square rods 32 are fixedly connected with the side surface of the upper end of the other frame 1 at the outer side of the guide cylinders 33, the lead screw 34 is rotatably installed in the middle guide cylinder 33, the lead screw 34 is threadedly connected with the lead hole on the end surface of the middle square rod 32, the rotating seat 35 is rotatably installed on the side surface of the upper end of one of the frames 1, the shaft on the end surface of the rotating seat 35 is fixedly connected with one end of the lead screw 34 through the through hole on the side surface of the frame 1 and the guide cylinder 33, the push rod 36 is movably installed in the through hole on the side surface of the rotating seat 35, the two ends of the push rod 36 are spherical structures, the diameters of the two end spherical structures of the push rod 36 are larger than the diameter of the through hole on the rotating seat 35, the two end spherical structures of the push rod 36 can prevent the push rod 36 from accidentally falling off during use, and ensure the safety and reliability of the clamping operation, the clamping plates 31 are provided with two, the two clamping plates 31 are fixedly installed on the side surfaces of the lower ends of the two frames 1, the top-tightening lead screws 5 are threadedly connected in the screw holes at the two ends of the clamping plates 31, the clamping plates 31 can be in stable contact with the cement guardrails 7 through the top-tightening lead screws 5 when the cement guardrails 7 are not flat, and the stability is improved, through the cooperation of the three guide cylinders 33 and the square rods 32 and the precise adjustment of the lead screw 34, the frame 1 and the clamping plate 31 can tightly clamp the cement guardrail 7, realize stable three-point force support, compared with the traditional structure, the sign dumping probability is greatly reduced under the action of air flow impact generated by high-speed driving of vehicles or natural wind force, and the overall stability is greatly enhanced;

[0020] The sign fixing mechanism 4 comprises a sign 41, a vertical rod 42, a fixing nut 43, a locking screw rod 44 and a pressing plate 45, the side surface of the sign 41 is fixedly connected with the side surface of the upper end of the vertical rod 42, the vertical rod 42 is inserted into the fixing cylinder 2, two fixing nuts 43 are fixedly installed on the side surface of the fixing cylinder 2, one end of the locking screw rod 44 extends into the interior of the fixing cylinder 2 through the screw hole on the side surface of the fixing nut 43, the end of the locking screw rod 44 in the fixing cylinder 2 is rotationally connected with the side surface of the pressing plate 45, the end of the locking screw rod 44 and the end of the jacking screw rod 5 are annular structures, the annular structure of the end of the locking screw rod 44 and the jacking screw rod 5 facilitates the staff to operate with tools or manually, and the convenience of installation and dismounting is improved, the pressing plate 45 is arc-shaped, rubber pads 6 are fixedly installed on the side surface of the pressing plate 45, the friction between the pressing plate 45 and the vertical rod 42 is increased through the rubber pads 6 on the side surface of the pressing plate 45, the vertical rod 42 can be better fixed, and the surface of the vertical rod 42 can be prevented from being damaged in the pressing process, the service life of the sign fixing device is prolonged, the vertical rod 42 is pressed and fixed by the cooperation of the pressing plate 45 and the fixing cylinder 2, the vertical rod 42 is tightly pressed and fixed through the cooperation of the fixing nut 43, the pressing plate 45 and the fixing cylinder 2, and it is further ensured that the sign will not shake or fall during use, the sign 41 can be ensured to be stable even under the action of strong wind or strong air flow generated by high-speed driving of a vehicle, and the warning and guiding effects can be continuously exerted.

[0021] The working principle of the utility model is as follows: when installing, first, place two frames 1 on the two sides of the cement guardrail 7, then push the push rod 36 to drive the rotating seat 35 to rotate, and then make the lead screw 34 rotate, since the lead screw 34 is screw-connected with the square rod 32, when the lead screw 34 rotates, the two frames 1 will relatively approach or move away along the direction of the square rod 32, when the frame 1 gradually approaches, the clamping plate 31 also approaches the cement guardrail 7, until the clamping plate 31 is tightly attached to the cement guardrail 7, at this time, if the surface of the cement guardrail 7 is uneven, adjust the jacking screw rod 5, so that the end of the jacking screw rod 5 is tightly contacted with the surface of the cement guardrail, and the stability is enhanced.

[0022] Insert the vertical rod 42 with the sign 41 into the fixing cylinder 2, then use tools or manually twist the annular end of the locking screw rod 44, so that the locking screw rod 44 is gradually screwed into the fixing nut 43, as the locking screw rod 44 is screwed in, the pressing plate 45 will be driven to approach the vertical rod 42 in the fixing cylinder 2, finally, the vertical rod 42 is tightly pressed and fixed by the cooperation of the arc-shaped pressing plate 45 and the fixing cylinder 2, so that the sign 41 will not shake or fall during use.

[0023] The components not described in detail in the present application are prior art.

[0024] Although the specific embodiments of the utility model have been described in detail above, the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model, and the modification or deformation without creative labor is still within the protection range of the utility model.

Claims

1. A highway bridge sign fixture device, characterized by, Includes a frame (1) and a cement railing (7). There are two frames (1). The two frames (1) are equipped with clamping mechanisms (3) for clamping onto the cement railing (7). The side of one of the frames (1) is fixedly connected to the side of a fixing cylinder (2). The fixing cylinder (2) is equipped with a sign fixing mechanism (4). The clamping mechanism (3) includes a clamping plate (31), a square rod (32), a guide cylinder (33), a lead screw (34), a rotating seat (35), and a push rod (36). Three guide cylinders (33) are provided, each fixedly installed on the side of the upper end of one of the frames (1). A square rod (32) is slidably installed inside each of the three guide cylinders (33). One end of each square rod (32) located outside the guide cylinder (33) is fixedly connected to the side of the upper end of another frame (1). The middle guide cylinder (33) rotates... A lead screw (34) is movably installed, and the lead screw (34) is threadedly connected to the threaded hole on the end face of the square rod (32) in the middle. The rotating seat (35) is rotatably installed on the side of the upper end of one of the frames (1). The shaft on the end face of the rotating seat (35) passes through the through hole on the side of the frame (1) and the guide cylinder (33) and is fixedly connected to one end of the lead screw (34). A push rod (36) is movably installed in the through hole on the side of the rotating seat (35). Two clamping plates (31) are provided and are fixedly installed on the side of the lower end of the two frames (1). The sign fixing mechanism (4) includes a sign (41), a vertical rod (42), a fixing nut (43), a locking screw (44), and a pressure plate (45). The side of the sign (41) is fixedly connected to the side of the upper end of the vertical rod (42). The vertical rod (42) is inserted into the fixing cylinder (2). Two fixing nuts (43) are fixedly installed on the side of the fixing cylinder (2). One end of the locking screw (44) passes through the screw hole on the side of the fixing nut (43) and extends into the interior of the fixing cylinder (2). The end of the locking screw (44) located inside the fixing cylinder (2) is rotatably connected to the side of the pressure plate (45). The pressure plate (45) is arc-shaped. The pressure plate (45) cooperates with the fixing cylinder (2) to press and fix the vertical rod (42).

2. A highway bridge sign fixture as defined in claim 1, wherein: The screw holes at both ends of the clamping plate (31) are threaded with tightening screws (5).

3. A highway bridge sign fixture as defined in claim 2 wherein: Both the locking screw (44) and the tightening screw (5) have annular structures at one end.

4. The highway bridge sign fixing device according to claim 1, characterized in that: The push rod (36) has spherical structures at both ends, and the diameter of the spherical structures at both ends of the push rod (36) is larger than the diameter of the through hole on the rotating seat (35).

5. A highway bridge sign fixing device according to claim 1, characterized in that: A rubber pad (6) is fixedly installed on the side of the pressure plate (45).