Movable telescopic bridge expansion joint installation and maintenance shed frame

Abstract

The utility model provides a movable telescopic bridge expansion joint installation and maintenance shed frame, which belongs to the technical field of municipal bridge construction and comprises a shed frame main body and an installation and maintenance mechanism, the shed frame body comprises a plurality of moving frame units distributed in parallel, at least two moving frame units are fixed through a connecting frame to form a fixed section, and the other moving frame units are connected with the fixed section through telescopic mechanisms. The installation and maintenance mechanism is fixedly installed on the fixed section and provided with a maintenance water dripping pipe, and when the bridge expansion joint is installed and maintained, the shed frame body can move to the position above the expansion joint, and the whole shed frame body can stretch out and draw back and can adapt to expansion joint devices with different lengths; after one expansion joint device is installed and maintained, the whole expansion joint device can be moved to the next expansion joint device to continue construction, and the tedious working procedures of repeated building and disassembling of a traditional expansion joint device installation and maintenance shed frame are avoided.

Description

Technical Field

[0001] This application relates to the field of municipal bridge construction technology, and in particular to a movable telescopic bridge expansion joint installation and maintenance shed. Background Technology

[0002] Bridge expansion joints are an important component of bridge construction, and their installation is crucial for the safety and stability of bridges. Due to factors such as temperature changes, concrete shrinkage and creep, and live loads, bridges will undergo longitudinal expansion and contraction. To ensure the free movement of this deformation and prevent excessive secondary internal forces from damaging the bridge, expansion joints must be installed.

[0003] However, due to the repeated action of vehicle loads on bridge expansion joints, the impact caused by unevenness in the joint area can damage them. Therefore, expansion joints are one of the most vulnerable and difficult-to-repair parts of a bridge. Current bridge expansion joint maintenance generally involves: regularly conducting detailed inspections of the expansion joints, paying attention to cracks, displacement, wear, and corrosion, as well as the smoothness and presence of cracks in the surrounding asphalt concrete pavement.

[0004] During maintenance, it is necessary to clean and dredge the bridge expansion joints, removing debris. If cracks or damage are found in the concrete strip of the expansion joint, they should be repaired promptly. When edge chipping occurs, the damaged concrete should be repaired. However, these methods only address problems after they occur, and do not adequately address the maintenance of the expansion joints. Therefore, how to achieve rapid and accurate installation and maintenance of expansion joints is a pressing technical issue that needs to be addressed. Utility Model Content

[0005] To address the problem that existing maintenance methods only address issues after they occur, resulting in insufficient maintenance of expansion joints, this utility model adopts the following technical solution:

[0006] The movable and retractable bridge expansion joint installation and maintenance shed includes:

[0007] The main body of the canopy includes several parallel movable frame units, at least two movable frame units are fixed to form a fixed section by connecting frames, and the remaining movable frame units are connected to the fixed section by telescopic mechanisms.

[0008] The installation and maintenance mechanism is fixedly installed on a fixed section and is equipped with a maintenance drip pipe.

[0009] As a further description of the above technical solution:

[0010] The mobile frame unit includes a first crossbar, a vertical pole, and wheels.

[0011] The uprights are two in number and are positioned opposite each other at both ends of the first horizontal bar. One end of the upright is fixedly connected to the first horizontal bar, and the other end is fixedly connected to the traveling wheel.

[0012] As a further description of the above technical solution:

[0013] The mobile frame unit also includes an arc-shaped roof support rod and support uprights;

[0014] The two ends of the ceiling support rod are fixedly connected to the two ends of the first crossbar, the ceiling support rod is arc-shaped, one end of the support rod is fixedly connected to the vertex of the ceiling support rod, and the other end of the support rod is fixedly connected to the center of the first crossbar.

[0015] As a further description of the above technical solution:

[0016] The connecting frame includes a second crossbar and a third crossbar. The two ends of the second crossbar are fixed to the middle section of the two uprights, and the two ends of the third crossbar are fixed to the two uprights near their ends.

[0017] As a further description of the above technical solution:

[0018] The telescopic mechanism includes several diagonal connecting rods, which are arranged in pairs and are rotatably connected relative to each other with the intersection point as the axis.

[0019] The upper end of the diagonal connecting rod is rotatably connected to the upright of the movable frame unit via a pin, and the lower end of the diagonal connecting rod is slidably connected to the upright of another movable frame unit via a sliding sleeve, and the sliding sleeve is rotatably connected to the lower end of the diagonal connecting rod.

[0020] As a further description of the above technical solution:

[0021] There are three maintenance drip pipes, which are respectively installed at both ends and the middle of the first horizontal bar;

[0022] Furthermore, the entire maintenance drip pipe is sequentially fixed to the first crossbar of each adjacent movable frame unit.

[0023] As a further description of the above technical solution:

[0024] The installation and maintenance mechanism also includes: longitudinal I-beams, lifting devices, and moving drive components;

[0025] Both ends of the longitudinal I-beam are respectively fixed to the first crossbar of the movable frame unit in the fixed section;

[0026] The lifting device is slidably connected to the longitudinal I-beam and is used to lift the container holding the concrete for concrete pouring.

[0027] The moving drive component is fixed to the lifting device and is used to drive the lifting device to move.

[0028] As a further description of the above technical solution:

[0029] It also includes windproof fixing ropes and anchoring devices;

[0030] One end of the windproof fixing rope is fixedly connected to one end of the first crossbar, and the other end of the windproof fixing rope is fixed to the ground by the anchoring device;

[0031] The windproof fixing ropes and anchoring devices consist of four sets, which are respectively installed at the four ends of the main frame.

[0032] This application provides a movable and retractable bridge expansion joint installation and maintenance scaffold, comprising: a scaffold body and an installation and maintenance mechanism; the scaffold body includes several parallel movable frame units, at least two movable frame units are fixed to form a fixed section by connecting frames, and the remaining movable frame units are connected to the fixed section by a telescopic mechanism; the installation and maintenance mechanism is fixedly installed on the fixed section and is equipped with a maintenance drip pipe; during the installation and maintenance of the bridge expansion joint, the scaffold body can be moved above the expansion joint, and the entire scaffold body can also be telescopic to adapt to expansion joint devices of different lengths; after the installation and maintenance of one expansion joint device is completed, it can be moved as a whole to the next expansion joint device to continue construction, avoiding the cumbersome process of repeatedly building and dismantling traditional expansion joint device installation and maintenance scaffolds, and can be used for construction in rainy weather and at night, reducing environmental pollution such as dust, while improving the early strength of concrete, shortening the formwork removal time, improving overall efficiency, and reducing construction costs. Attached Figure Description

[0033] The following diagram illustrates the installation and maintenance scaffolding for movable telescopic bridge expansion joints more clearly.

[0034] Figure 1 This is a schematic diagram of the structure of a movable telescopic bridge expansion joint installation and maintenance shed shown in an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the installation and maintenance mechanism shown in an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Mobile frame unit; 200. Telescopic mechanism; 300. Installation and maintenance mechanism; 400. Windproof fixing rope; 500. Anchoring device; 110. First crossbar; 120. Upright; 130. Traveling wheel; 140. Canopy support rod; 150. Support upright; 160. Second crossbar; 170. Third crossbar; 210. Diagonal connecting rod; 220. Pin; 230. Sliding sleeve; 310. Maintenance drip pipe; 320. Longitudinal I-beam; 330. Lifting device; 340. Moving drive component. Detailed Implementation

[0038] Because bridge expansion joints bear the repeated effects of vehicle wheel loads, unevenness at the joint location can cause damage due to impacts. Therefore, expansion joints are among the most vulnerable and difficult-to-repair parts of a bridge. Current maintenance methods for bridge expansion joints generally involve: regularly conducting detailed inspections, focusing on cracks, displacement, wear, and corrosion, as well as the smoothness and cracks in the surrounding asphalt concrete pavement. During maintenance, the expansion joints need to be cleaned and cleared of debris. Cracks or damage to the concrete strip should be repaired promptly, and any edge chipping should be repaired. However, these methods only address problems after they occur, and do not adequately address the overall maintenance of the expansion joints.

[0039] To address the aforementioned problems, this application provides a movable and retractable bridge expansion joint installation and maintenance shed, such as... Figure 1 As shown, it includes: the main frame and the installation and maintenance mechanism 300.

[0040] The main body of the canopy includes several parallel movable frame units 100. At least two movable frame units 100 are fixed together to form a fixed section. The fixed section forms a stable support system (it will not tip over even when independent). The remaining movable frame units 100 are connected to the fixed section through an expansion mechanism 200, allowing the remaining movable frame units 100 to move closer to or further away from the fixed section by means of the expansion mechanism 200. This allows the entire canopy to be extended or shortened to accommodate the installation and maintenance of expansion joint devices of different lengths. The installation and maintenance mechanism 300 is fixedly installed on the fixed section, which is relatively stable. The installation and maintenance mechanism 300 is easy to use. The installation and maintenance mechanism 300 is equipped with a maintenance drip pipe 310 (the maintenance drip pipe 310 is also equipped with a water supply system, which can be designed on the ground and connected to the maintenance drip pipe 310 using a quick connector). The maintenance drip pipe 310 can control the dripping speed and water volume to uniformly maintain the bridge expansion joint, ensuring its normal use and extending its service life.

[0041] In one embodiment, the movable frame unit 100 includes a first crossbar 110, a vertical pole 120, and wheels 130.

[0042] There are two uprights 120, which are arranged opposite each other at both ends of the first horizontal bar 110. One end of the upright 120 is fixedly connected to the first horizontal bar 110, and the other end is fixedly connected to the traveling wheel 130. The two uprights 120 and the first horizontal bar 110 form a portal frame structure. The traveling wheel 130 at the bottom of the upright 120 enables the movable frame unit 100 to move freely. The traveling wheel 130 is preferably a universal wheel with a self-locking structure.

[0043] In one embodiment, the movable frame unit 100 further includes an arc-shaped canopy support rod 140 and a support pole 150.

[0044] The two ends of the ceiling support rod 140 are fixedly connected to the two ends of the first horizontal bar 110 respectively. The ceiling support rod 140 is arc-shaped. One end of the support rod 150 is fixedly connected to the apex of the ceiling support rod 140, and the other end of the support rod 150 is fixedly connected to the center of the first horizontal bar 110.

[0045] The canopy support rod 140 features an arc-shaped design, allowing for waterproofing by placing a plastic sheet above the canopy during rainy construction, preventing water accumulation on the roof. This shape better adapts to different weather conditions and improves the stability of the movable frame unit 100. Both ends of the canopy support rod 140 are fixedly connected to the ends of the first crossbar 110, forming a stable support structure and enhancing the overall rigidity and load-bearing capacity of the movable frame unit 100. The main function of the support pole 150 is to support and fix the canopy support rod 140, ensuring its stability under various working conditions. Simultaneously, the support pole 150 also shares some of the load, reducing the pressure on other structural components.

[0046] In one embodiment, the connecting frame includes a second crossbar 160 and a third crossbar 170. The two ends of the second crossbar 160 are fixed to the middle sections of the two uprights 120, and the two ends of the third crossbar 170 are fixed to the ends of the two uprights 120. Figure 1 As shown, the third crossbar 170 can be designed in two sets, distributed at the bottom and top of the upright 120.

[0047] The second crossbar 160 and the third crossbar 170 are both used to make at least two movable frame units 100 form a stable fixed section.

[0048] In one embodiment, the telescopic mechanism 200 includes a plurality of diagonal connecting rods 210, which are arranged in pairs. The two diagonal connecting rods 210 arranged in pairs are rotatably connected about the intersection point as the axis. Specifically, a pin can be used to connect the diagonal connecting rods 210 arranged in pairs, and both diagonal connecting rods 210 can rotate along the pin.

[0049] The upper end of the diagonal connecting rod 210 is rotatably connected to the upright 120 of the movable frame unit 100 via a pin 220. The lower end of the diagonal connecting rod 210 is slidably connected to the upright 120 of another movable frame unit 100 via a sliding sleeve 230. The sliding sleeve 230 is rotatably connected to the lower end of the diagonal connecting rod 210. When the movable frame unit 100 (referring to the movable frame unit 100 excluding the fixed section) is slidably adjusted, the movable frame unit 100 drives the diagonal connecting rod 210 to rotate, and the sliding sleeve 230 of the diagonal connecting rod 210 slides with the upright 120 of the movable frame unit 100, thereby reducing the tilt angle of the diagonal connecting rod 210 (referring to the angle between the diagonal connecting rod 210 and the horizontal plane) and increasing the lateral distance of the diagonal connecting rod 210. After the movable frame unit 100 is adjusted to a suitable position, the user can also install a fastening top on the side thread of the sliding sleeve 230 to fix the sliding sleeve 230 to the upright 120.

[0050] In one embodiment, there are three maintenance drip pipes 310, which are respectively located at both ends and the middle of the first crossbar 110; and the entire maintenance drip pipe 310 is fixed to the first crossbar 110 of each adjacent movable frame unit 100.

[0051] The maintenance drip pipes 310 at both ends of the first horizontal bar 110 are mainly used for maintaining the expansion joints near the bridge edge. Since these areas are often difficult to operate and maintain, installing dedicated maintenance drip pipes 310 makes maintenance work easier and ensures that the expansion joints in these areas receive adequate maintenance. The maintenance drip pipe 310 in the middle of the first horizontal bar 110 is mainly used for maintaining the expansion joints in the central area of ​​the scaffold. This location ensures that the entire area covered by the scaffold receives uniform maintenance, preventing premature damage to the expansion joints due to uneven maintenance.

[0052] In this embodiment, to ensure the stability and ease of operation of each drip pipe, it is fixed sequentially to the first horizontal bar of each adjacent movable frame unit 100. This not only ensures the stability of the drip pipe but also prevents the maintenance drip pipe 310 from shifting or falling off during movement, thus maintaining effective maintenance of the expansion joint at all times.

[0053] In one embodiment, reference is made to Figure 2 As shown, the installation and maintenance mechanism 300 also includes: a longitudinal I-beam 320, a lifting device 330, and a moving drive component 340; the two ends of the longitudinal I-beam 320 are respectively fixed to the first crossbar 110 of the adjacent movable frame unit 100; the lifting device 330 is slidably connected to the longitudinal I-beam 320, and the lifting device 330 is used to lift the container holding concrete for concrete pouring; the moving drive component 340 is fixed to the lifting device 330 and is used to drive the lifting device 330 to move.

[0054] The longitudinal H-beam 320 is the main load-bearing structure of the installation and maintenance mechanism 300, providing a stable foundation for the entire mechanism. In addition to its load-bearing function, the longitudinal H-beam 320 also connects and secures other components, enhancing the stability and reliability of the entire installation and maintenance mechanism.

[0055] The lifting device 330 is used to lift heavy objects. It is slidably connected to the longitudinal I-beam 320 and can be moved as needed, facilitating concrete pouring for bridge expansion joints and improving construction efficiency and quality. The moving drive component 340, fixed to the lifting device 330, drives the lifting device. This component can be a motor with wheels at its output end. The motor drives the wheels to rotate, and the sides of the wheels contact the longitudinal I-beam 320. As the wheels rotate, they drive the lifting device 330 to slide relative to the longitudinal I-beam 320, thus controlling its position on the I-beam 320. The moving drive component 340 and its installation ensure the stability and accuracy of the lifting device 330, thereby improving construction safety and efficiency.

[0056] Understandably, the installation and maintenance mechanism 300, through the coordinated operation of multiple structures such as the longitudinal I-beam 320, the lifting device 330, and the moving drive component 340, achieves efficient and precise concrete pouring for bridge expansion joints. This integrated design improves the efficiency and safety of installation and maintenance operations, providing a strong guarantee for the long-term stable operation of bridge expansion joints.

[0057] In some embodiments of this application, reference continues to be made to Figure 1 As shown, it also includes windproof fixing ropes 400 and anchoring devices 500. One end of the windproof fixing rope 400 is fixedly connected to one end of the first crossbar 110, and the other end of the windproof fixing rope 400 is fixed to the ground through the anchoring device 500. There are four sets of windproof fixing ropes 400 and anchoring devices 500, which are respectively installed at the four ends of the movable telescopic bridge expansion joint installation and maintenance shed.

[0058] In this embodiment, the tension of the windproof fixing rope 400 securely anchors the scaffolding to the ground, preventing it from shifting or tipping due to strong winds or other external forces. The windproof fixing rope 400 not only improves the stability of the scaffolding but also provides a safer working environment for operators. The anchoring device 500 is used to fix the windproof fixing rope 400 to the ground. Through anchor bolts extending deep into the ground, it ensures that the other end of the windproof fixing rope 400 is firmly fixed to the ground. The selection and installation of the anchoring device 500 guarantee the fixing effect of the windproof fixing rope 400, effectively preventing the scaffolding from shifting under various weather conditions.

[0059] To improve the overall stability of the scaffolding, four sets of windproof fixing ropes 400 and anchoring devices 500 are installed in this embodiment, located at the four ends of the movable telescopic bridge expansion joint installation and maintenance scaffolding. This arrangement ensures that the scaffolding can be effectively fixed in all directions, enhancing its ability to resist external forces such as strong winds.

[0060] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0061] It should be understood that 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. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A movable, retractable bridge expansion joint installation and maintenance shed, characterized in that, include: The main body of the shed includes several parallel movable frame units (100), at least two movable frame units (100) are fixed to form a fixed section by connecting frames, and the remaining movable frame units (100) are connected to the fixed section by telescopic mechanisms (200). The installation and maintenance mechanism (300) is fixedly installed on the fixed section, and the installation and maintenance mechanism (300) is provided with a maintenance drip pipe (310).

2. The movable telescopic bridge expansion joint installation and maintenance shed according to claim 1, characterized in that: The mobile frame unit (100) includes a first crossbar (110), a vertical pole (120), and a traveling wheel (130); There are two uprights (120) arranged opposite each other at both ends of the first crossbar (110). One end of the upright (120) is fixedly connected to the first crossbar (110), and the other end is fixedly connected to the walking wheel (130).

3. The movable telescopic bridge expansion joint installation and maintenance shed according to claim 2, characterized in that: The movable frame unit (100) also includes an arc-shaped roof support rod (140) and a support pole (150); The two ends of the ceiling support rod (140) are fixedly connected to the two ends of the first crossbar (110), the ceiling support rod (140) is arc-shaped, one end of the support rod (150) is fixedly connected to the vertex of the ceiling support rod (140), and the other end of the support rod (150) is fixedly connected to the center of the first crossbar (110).

4. The movable telescopic bridge expansion joint installation and maintenance shed according to claim 2 or 3, characterized in that: The connecting frame includes a second crossbar (160) and a third crossbar (170). The two ends of the second crossbar (160) are fixed at the middle positions of the two uprights (120), and the two ends of the third crossbar (170) are fixed at the positions near the ends of the two uprights (120).

5. The movable telescopic bridge expansion joint installation and maintenance shed according to claim 2 or 3, characterized in that: The telescopic mechanism (200) includes several diagonal connecting rods (210), which are arranged in pairs and the two diagonal connecting rods (210) arranged in pairs are rotatably connected relative to each other with the intersection point as the axis. The upper end of the diagonal connecting rod (210) is rotatably connected to the upright (120) of the movable frame unit (100) via a pin (220), and the lower end of the diagonal connecting rod (210) is slidably connected to the upright (120) of another movable frame unit (100) via a sliding sleeve (230), and the sliding sleeve (230) is rotatably connected to the lower end of the diagonal connecting rod (210).

6. The movable telescopic bridge expansion joint installation and maintenance shed according to claim 2 or 3, characterized in that: There are three maintenance drip pipes (310), which are respectively located at both ends and the middle of the first crossbar (110); Furthermore, the maintenance drip pipe (310) is fixed in sequence on the first crossbar (110) of each adjacent movable frame unit (100).

7. The movable telescopic bridge expansion joint installation and maintenance shed according to claim 2 or 3, characterized in that: The installation and maintenance mechanism (300) further includes: longitudinal I-beams (320), lifting devices (330), and moving drive components (340); The longitudinal I-beam (320) is fixed at both ends to the first crossbar (110) of the movable frame unit (100) in the fixed section; The lifting device (330) is slidably connected to the longitudinal I-beam (320), and the lifting device (330) is used to lift the container holding the concrete for concrete pouring; The moving drive (340) is fixed on the lifting device (330) and is used to drive the lifting device (330) to move.

8. The movable telescopic bridge expansion joint installation and maintenance shed according to claim 2 or 3, characterized in that, It also includes windproof fixing ropes (400) and anchoring devices (500); One end of the windproof fixing rope (400) is fixedly connected to one end of the first crossbar (110), and the other end of the windproof fixing rope (400) is fixed to the ground by the anchoring device (500); The windproof fixing ropes (400) and anchoring devices (500) consist of four sets, which are respectively installed at the four ends of the main body of the canopy.

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