Steel bar welding slag collecting device for bridge deck anti-collision guardrail construction

By using fireproof storage baskets and telescopic adjustment mechanisms to collect welding slag during the construction of bridge crash barriers, the fire risk and construction inconvenience caused by slag splashes were solved, achieving a safe and efficient construction process.

CN224088348UActive Publication Date: 2026-04-07CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

During the construction of steel reinforcement for crash barriers on cross-rail and forest bridges, the splashing of welding slag poses a fire risk and the construction process is inconvenient. Traditional methods disrupt traffic and consume manpower and resources.

Method used

The system uses a fireproof storage basket, a positioning hook, and a telescopic adjustment mechanism. The positioning hook connects to the fireproof storage basket, and the telescopic adjustment mechanism adjusts the position of the fireproof storage basket to collect the welding slag from the steel bars during the welding process, reducing the risk of welding slag splashing.

Benefits of technology

It effectively reduces the fire risk caused by welding slag spatter, improves construction safety and convenience, and reduces the consumption of manpower and material resources.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224088348U_ABST
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Abstract

The utility model discloses a steel bar welding slag collecting device for bridge deck anti-collision guardrail construction, which relates to the technical field of building construction and comprises a fireproof storage basket used for storing steel bar welding slag. The positioning drag hook is used for being arranged at the top end of a guardrail steel bar; the two ends, in the height direction, of the telescopic adjusting mechanism are connected with the fireproof storage basket and the positioning drag hook correspondingly, and the telescopic adjusting mechanism is used for adjusting the distance between the fireproof storage basket and the positioning drag hook, so that the possibility of fire disasters caused by splashing of steel bar welding slag all around is reduced; and the fireproof storage basket has fireproof performance, so that the possibility of forest fire in the welding slag splashing process is further reduced, and the problems that in the prior art, in the construction process of the forest bridge anti-collision guardrail reinforcing steel bar, the fire risk exists due to welding slag splashing, and the construction process is inconvenient are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, specifically relates to a reinforcing steel bar welding slag collecting device for bridge deck crash barrier construction. BACKGROUND

[0002] In the reinforcing steel bar construction process of the crash barrier of the cross-line and forest bridge, the reinforcing steel bars need to be installed along the length direction of the bridge deck at intervals, and positioning reinforcing steel bars need to be welded at intervals along the height direction of the reinforcing steel bars inside the reinforcing steel bars to improve the structural strength of the reinforcing steel bars. However, in the welding process of the positioning reinforcing steel bars, the reinforcing steel bar welding slag has a high temperature when splashing, and the risk of forest fire is high. Due to the complex and changeable construction environment, the reinforcing steel bar welding slag splashing safety risk is also increasing because the reinforcing steel bars are everywhere in the construction environment of the cross-line and forest bridge.

[0003] The traditional construction method adopts cross-line closed traffic and installs a protective shed, and a person is arranged to stand by in the forest section, but this construction method seriously affects the traffic operation, consumes a lot of manpower and material resources, and the splashing of the welding slag has not been solved, and there is still a risk of fire, and the construction process is not convenient. UTILITY MODEL CONTENTS

[0004] The application provides a reinforcing steel bar welding slag collecting device for bridge deck crash barrier construction, which can solve the technical problems of the existing technology, such as the fire risk of the splashing of welding slag in the reinforcing steel bar construction process of the crash barrier of the forest bridge, and the inconvenience of the construction process.

[0005] The application provides a reinforcing steel bar welding slag collecting device for bridge deck crash barrier construction, which can solve the technical problems of the existing technology, such as the fire risk of the splashing of welding slag in the reinforcing steel bar construction process of the crash barrier of the forest bridge, and the inconvenience of the construction process.

[0006] The fireproof storage basket is used for storing reinforcing steel bar welding slag.

[0007] The positioning draw hook is used for being arranged at the top end of the reinforcing steel bar.

[0008] In addition, the two ends of the telescopic adjusting mechanism in the height direction are connected with the fireproof storage basket and the positioning draw hook respectively, and the telescopic adjusting mechanism is used for adjusting the distance between the fireproof storage basket and the positioning draw hook.

[0009] In an embodiment, the telescopic adjusting mechanism comprises:

[0010] The hand-operated hoist fixed section is arranged on the positioning draw hook, and the chain end of the hand-operated hoist is connected with the fireproof storage basket.

[0011] In an embodiment, the side wall of the fireproof storage basket is arranged downwardly inclined towards the bottom surface of the fireproof storage basket.

[0012] In one embodiment, the fireproof storage basket is made of a material with good fire resistance.

[0013] In one embodiment, the fireproof storage basket is made of fireproof blanket.

[0014] In one embodiment, the telescopic adjustment mechanism includes:

[0015] An electric telescopic pole, the fixed end of which is fixed to the steel bar hook, and the telescopic end of which is connected to the fireproof storage basket.

[0016] In one embodiment, the fixed end of the electric telescopic rod is fixed to the positioning hook by bolts.

[0017] In one embodiment, the positioning hook is provided with a reinforcing member.

[0018] In one embodiment, the positioning hook is made of steel.

[0019] In one embodiment, the fireproof storage basket is equipped with a high-temperature resistant thermometer.

[0020] The beneficial effects of the technical solutions provided in this application include:

[0021] By attaching a positioning hook to the top of the guardrail reinforcement bars and using a telescopic adjustment mechanism to connect the positioning hook to the fireproof storage basket, the fireproof storage basket can be attached to the surface of the guardrail reinforcement bars. During the welding of the positioning reinforcement bars inside the guardrail reinforcement bars, the position of the fireproof storage basket can be adjusted by the telescopic adjustment mechanism to follow the welding position of the positioning reinforcement bars, thus collecting the welding slag generated during the welding process. This reduces the possibility of welding slag flying everywhere and causing a fire. Furthermore, the fireproof storage basket itself has fireproof properties, further reducing the possibility of forest fires caused by welding slag flying during the process. This solves the problem of fire risk caused by welding slag flying during the construction of forest bridge anti-collision guardrail reinforcement bars in existing technologies, as well as the inconvenience of the construction process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a steel bar welding slag collection device for the construction of a bridge deck crash barrier according to this application;

[0024] In the picture: 1. Fireproof storage basket; 2. Positioning hook; 3. Telescopic adjustment mechanism; 4. Guardrail reinforcement; 41. Positioning reinforcement. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0026] This application provides a steel bar welding slag collection device for the construction of bridge crash barriers, which can solve the problems in the prior art where welding slag splashing during the construction of steel bars for forest bridge crash barriers poses a fire risk and the construction process is inconvenient.

[0027] Reference Figure 1 This application discloses a steel bar welding slag collection device for bridge deck crash barrier construction, including a fireproof storage basket 1, a positioning hook 2, and a telescopic adjustment mechanism 3. The positioning hook 2 is fixed to the top of the guardrail steel bar 4, and the positioning hook 2 is connected to the fireproof storage basket 1 through the telescopic adjustment mechanism 3. The fireproof storage basket 1 is attached to the surface of the guardrail steel bar 4. During the construction of the bridge deck crash barrier, it is usually necessary to weld positioning steel bars 41 from bottom to top of the guardrail steel bar 4 at intervals to reinforce the guardrail steel bar 4. During construction, the positioning hook 2 is attached to the top of the guardrail steel bar 4, and the telescopic adjustment mechanism 3 is adjusted so that the fireproof storage basket 1 is located at the bottom of the guardrail steel bar 4. During the welding of the positioning steel bar 41, the welding slag generated during the welding process can be collected into the fireproof storage basket 1. As the positioning steel bar 41 is gradually welded upwards, the operator can adjust the position of the fireproof storage basket 1 on the side of the guardrail steel bar 4 through the telescopic adjustment mechanism 3 so that the opening of the fireproof storage basket 1 is always located below the welding construction point, so as to collect the welding slag in time and reduce the possibility of welding slag splashing everywhere. This reduces the possibility of forest fire caused by the high temperature of the welding slag. It solves the problem of fire risk caused by welding slag splashing during the construction of forest bridge anti-collision guardrail steel bar 4 and the inconvenience of the construction process.

[0028] More specifically, the length direction of the positioning hook 2 is almost parallel to the top of the guardrail reinforcement 4. In one embodiment of this application, the telescopic adjustment mechanism 3 is specifically set as a hand-operated hoist. The fixed end of the hand-operated hoist is fixed to the end of the positioning hook 2 away from the guardrail reinforcement 4, and the chain end of the hand-operated hoist is connected to the fireproof storage basket 1. The operator can adjust the height of the fireproof storage basket 1 relative to the side of the guardrail reinforcement 4 by rotating the handle on the hand-operated hoist. The structure is simple and easy to operate. In this application, the hand-operated hoist is specifically fixed to the positioning hook 2 with bolts to facilitate the later maintenance and replacement of the hand-operated hoist. In other embodiments, the fixed end of the hand-operated hoist can also be directly welded to the positioning hook 2 to make the connection between the positioning hook 2 and the hand-operated hoist tighter and the structural strength higher. The specific installation method of the hand-operated hoist can be flexibly changed according to the actual working conditions.

[0029] In another embodiment of this application, the telescopic adjustment mechanism 3 can also be directly configured as an electric telescopic rod. The fixed end of the electric telescopic rod is connected to the positioning hook 2, and the telescopic end of the electric telescopic rod is connected to the fireproof storage basket 1. When the telescopic end of the electric telescopic rod extends, the fireproof storage basket 1 moves away from the positioning hook 2. When the telescopic end of the electric telescopic rod retracts, it moves the fireproof storage basket closer to the positioning hook 2, i.e., the top of the guardrail steel bar 4, further improving the automation of the overall operation and making it more convenient to use. More specifically, in this application, the fixed end of the electric telescopic rod is fixed to the positioning hook 2 with bolts to facilitate the charging or battery replacement of the electric telescopic rod later.

[0030] Compared to using a manual chain hoist as the telescopic adjustment mechanism 3, the electric telescopic boom offers a higher degree of automation. Operators can achieve precise stroke control via wireless remote control or preset programs, reducing the physical exertion required for manual traction and improving the stability of height adjustment for the fireproof storage basket 1. This makes it more suitable for applications requiring high positioning accuracy. However, using an electric telescopic boom as the telescopic adjustment mechanism 3 requires regular charging or battery replacement. Furthermore, its built-in lithium battery pack or external power system requires regular charging and discharging maintenance. In humid or dusty environments, an additional protective casing is needed to prevent circuit aging, necessitating regular maintenance. In contrast, while the purely mechanical structure of a manual chain hoist requires greater operational effort, its passive design offers greater reliability in field operations or temporary construction scenarios with limited power supply. Basic functions can be maintained through regular chain lubrication and ratchet checks. The specific telescopic adjustment mechanism 3 can be selected based on actual working conditions: in operations requiring frequent adjustments, the electric telescopic boom's response speed significantly improves efficiency; while in intermittent use and complex environmental conditions, the low-maintenance characteristics of a manual chain hoist are more economical.

[0031] Furthermore, the sidewall of the fireproof storage basket 1 is inclined downwards towards its bottom surface to guide the welding slag from the reinforcing bars. This allows the welding slag to enter the interior of the fireproof storage basket 1 along the sidewall upon contact with its top. Simultaneously, the inclination angle of the sidewall of the fireproof storage basket 1 also considers equipment adaptability requirements. Its contact surface with the guardrail reinforcing bars 4 has been optimized through contouring, enabling adaptive fitting of guardrail reinforcing bars 4 with diameters ranging from 3-15mm. This ensures the structural stability of the fireproof storage basket 1 in its suspended state and solves the jamming problem caused by rigid contact. During the movement and adjustment of the fireproof storage basket 1, the wedge-shaped gap formed between the sidewall of the fireproof storage basket 1 and the surface of the guardrail reinforcing bars 4 automatically compensates for installation errors, ensuring that the fireproof storage basket 1 always remains in the optimal working position.

[0032] Since the welding slag of the reinforcing bars is an industrial waste generated during the welding process of the positioning reinforcing bars 41, and the instantaneous temperature of the welding slag is high, typically exceeding 1000°C, in order to further extend the service life of the fireproof storage basket 1, it is specifically made of a material with good fire resistance, i.e., a fire resistance temperature of not less than 1400°C. This not only extends the service life of the fireproof storage basket 1 but also further reduces the possibility of burns to operators due to excessively high internal temperatures. Additionally, a high-temperature thermometer can be installed on the top of the inner wall of the fireproof storage basket 1 to record the internal temperature in real time, providing more intuitive alerts to operators and further reducing the likelihood of burns.

[0033] In one embodiment of this application, the fireproof storage basket 1 is specifically an open rectangle surrounded by a fireproof blanket. To better maintain the shape of the fireproof storage basket 1, other heat-resistant materials can be added around the fireproof blanket to form a rectangular frame, and then the fireproof blanket can be placed inside the rectangular frame. The heat-resistant material can be selected from materials with good heat insulation properties, such as aluminum foil.

[0034] In practical applications, the positioning hook 2 serves as the core load-bearing component of the fireproof storage basket 1 and the telescopic adjustment mechanism 3. Therefore, the structural reliability of the positioning hook 2 directly affects the safety of the entire device. As the fireproof storage basket 1 continuously stores high-temperature steel reinforcement slag, it generates increasing loads. Simultaneously, the telescopic adjustment mechanism 3 generates additional stress during dynamic adjustment. This dual effect places higher demands on the mechanical properties of the positioning hook 2. Therefore, the positioning hook 2 is made of high-strength alloy steel as its base material, formed into an integrated structure through precision forging. This material selection not only significantly improves the tensile strength threshold but also effectively suppresses metal fatigue, allowing the positioning hook 2 to maintain stable mechanical properties even under long-term alternating loads. Taking 304 stainless steel as an example, the microstructure of 304 stainless steel after solution strengthening treatment can form a stable dislocation network. Combined with the oxide film formed by surface passivation treatment, this simultaneously enhances the corrosion resistance of the positioning hook 2 in humid environments or weak acid / alkali media. For applications with high lightweight requirements, 6000 series aluminum alloys, through a combination of age hardening and anodizing processes, can effectively suppress stress corrosion cracking while maintaining high specific strength. The application of this type of material ensures that the positioning hook 2 maintains sufficient structural strength even under long-term stress, thereby reducing the risk of the fireproof storage basket 1 falling off due to wear or deformation of the positioning hook 2, and further extending its service life.

[0035] To further optimize stress distribution, multiple stiffeners are added to the stress concentration areas of the positioning hook 2. This three-dimensional reinforcement design scientifically distributes the load transfer path, allowing the tensile force, originally concentrated at a single point, to be evenly distributed across the entire load-bearing surface. The stiffeners can be corrugated, which enhances bending resistance while maintaining necessary structural elasticity. Under sudden impact loads, they can absorb energy through moderate deformation, reducing the risk of rigid fracture. Through these dual reinforcement measures, the maintenance cycle of the positioning hook 2 is extended, and operators are provided with more reliable safety assurance, fully meeting the dual requirements of modern industrial equipment for safety and economy.

[0036] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0037] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A device for collecting weld slag from steel bars during the construction of bridge crash barriers, characterized in that, It includes: Fireproof storage basket (1), the fireproof storage basket (1) is used to store steel bar welding slag; Positioning hook (2), the positioning hook (2) is used to be set at the top of the guardrail reinforcement (4); And, a telescopic adjustment mechanism (3), the two ends of which are connected to the fireproof storage basket (1) and the positioning hook (2) respectively in the height direction, the telescopic adjustment mechanism (3) is used to adjust the distance between the fireproof storage basket (1) and the positioning hook (2).

2. The steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 1, characterized in that, The telescopic adjustment mechanism (3) includes: A hand chain hoist, wherein the fixed section of the hand chain hoist is set on the positioning hook (2), and the chain end of the hand chain hoist is connected to the fireproof storage basket (1).

3. The steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 1, characterized in that: The side wall of the fireproof storage basket (1) is inclined downward toward the bottom of the fireproof storage basket (1).

4. The steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 1, characterized in that: The fireproof storage basket (1) is made of a material with good fire resistance.

5. A steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 4, characterized in that: The fireproof storage basket (1) is made of fireproof blanket.

6. A steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 1, characterized in that, The telescopic adjustment mechanism (3) includes: An electric telescopic rod, the fixed end of which is fixed to a steel bar hook, and the telescopic end of which is connected to the fireproof storage basket (1).

7. A steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 6, characterized in that: The fixed end of the electric telescopic rod is fixed to the positioning hook (2) by bolts.

8. A steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 1, characterized in that: The positioning hook (2) is provided with a reinforcing member.

9. A steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 1, characterized in that: The positioning hook (2) is made of steel.

10. A steel reinforcement welding slag collection device for bridge deck anti-collision guardrail construction according to claim 1, characterized in that: The fireproof storage basket (1) is equipped with a high-temperature resistant thermometer.