Portable hanging ladder for inspecting bridge support

Abstract

The utility model provides a portable hanging ladder for inspecting a bridge support, which belongs to the field of bridge safety detection, is used for solving the problems of inconvenience in bridge support inspection and safety risk caused by high-altitude operation of inspectors in the prior art, and comprises an upper bracket, a lower bracket and a transverse moving component, according to the hanging ladder, the hanging ladder is divided into the upper support and the lower support which can be detachably assembled, the occupied space of the hanging ladder during transportation and storage is reduced, and great convenience is brought to the hanging ladder in the transfer process; the design of the hollow accommodating hanging ladder provides a safe operation platform for detection personnel, the safety of high-altitude operation is enhanced, great convenience is provided for transverse movement of the hanging ladder along a bridge guardrail by additionally arranging a plurality of groups of transverse moving assemblies fixed on the inner side of the inner ladder, the detection personnel can easily adjust the position of the hanging ladder according to operation requirements, and the detection efficiency is improved. Frequent disassembly and reinstallation are not needed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of bridge safety detection, in particular to a portable hanging ladder for inspecting bridge supports. Background Art

[0002] As a key supporting component in a bridge structure, bridge bearings play a vital role in connecting the upper and lower structures. Their primary function is to bear the entire load from the upper bridge structure and, through the bearing structure, transfer these loads to the lower pier structure, ultimately distributing them to the foundation. This transfer process ensures the overall stability and safety of the bridge and is the cornerstone of its proper operation. During bridge design and construction, the strength, stiffness, and overall stability of the foundation and substructure are given paramount importance. These factors not only impact the durability of the bridge but are also crucial for ensuring its safe operation despite natural factors such as extreme weather and changing geological conditions. However, the importance of bridge bearings, as the force transmission and connection device connecting the upper and lower structures, is equally crucial. The bearing system must not only withstand static loads but also accommodate displacements caused by various factors, such as live loads, temperature fluctuations, concrete shrinkage, and creep, ensuring that the actual loads on the bridge are consistent with structural calculations, thereby extending the bridge's service life.

[0003] Generally speaking, the design life of a bridge is as long as 100 to 120 years, which means that bridge bearings need to function continuously and stably over this long period of time. However, in actual operation, bridge bearing systems often face many challenges. On the one hand, the bearing systems at the bottom of the bridge span structure and the piers may experience performance degradation due to factors such as material aging and fatigue accumulation during long-term use. On the other hand, natural disasters such as earthquakes and long-term structural shifts, or human factors, may also damage the bearing systems, thereby affecting their normal working condition. When it is necessary to inspect, test, or arrange inspection points for the bottom of the bridge span structure and the pier bearing systems, many difficulties are often encountered, especially when inspecting and testing the bearing systems. Due to space constraints, it is difficult for inspectors to access the areas, which increases the difficulty and risk of inspection. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the present utility model is to provide a portable hanging ladder for inspecting bridge supports, which is used to solve the problems of inconvenience in inspecting bridge supports and safety risks of inspectors working at height in the prior art.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a portable hanging ladder for inspecting bridge supports, comprising an upper bracket, a lower bracket and a transverse movement assembly;

[0006] The upper bracket includes an upper inner ladder and an upper outer ladder; a plurality of upper cross bars are fixedly connected between the upper inner ladder and the upper outer ladder, and together with the plurality of upper cross bars, a hollow accommodation space is formed;

[0007] The top end of the lower bracket is fixedly connected to the bottom end of the upper bracket, and includes a lower inner ladder and a lower outer ladder; a plurality of lower cross bars are fixedly connected between the lower inner ladder and the lower outer ladder, and together with the plurality of lower cross bars, a hollow accommodation space is formed;

[0008] There are multiple transverse movement components, which are fixedly connected to the upper inner ladder and the lower inner ladder respectively, so as to facilitate the transverse movement of the hanging ladder.

[0009] Optionally, the upper inner ladder is a U-shaped inner ladder, comprising two vertically arranged U-shaped inner hanging rods and a plurality of upper inner cross bars arranged along the length direction of the U-shaped inner hanging rods; the upper outer ladder is arranged parallel to the outer side of the upper inner ladder, comprising two vertically arranged U-shaped outer hanging rods and a plurality of upper outer cross bars arranged along the length direction of the U-shaped outer hanging rods.

[0010] Optionally, the upper inner cross bar, the upper cross bar and the upper outer cross bar are fixedly connected end to end to form a square support structure.

[0011] Optionally, the inner side of the U-shaped inner hanging rod is fixedly connected with a first transverse moving assembly, a second transverse moving assembly and a third transverse moving assembly;

[0012] The first transverse movement assembly is located on the inner side of the bridge guardrail and includes a fixing member fixedly connected to the U-shaped inner hanging rod and a first articulated wheel hinged to the fixing member;

[0013] The second transverse moving assembly is located at the top of the bridge guardrail and includes a fixing member fixedly connected to the U-shaped inner hanging rod and a second articulated wheel hinged to the fixing member;

[0014] The third transverse movement assembly is located outside the bridge guardrail and includes a horizontally fixed push-pull motor and a third transfer wheel hinged to the output end of the push-pull motor.

[0015] Optionally, the lower inner ladder includes two lower inner vertical rods and multiple lower inner horizontal rods arranged along the length direction of the lower inner vertical rods; the lower outer ladder is arranged parallel to the outside of the lower inner ladder, and includes two lower outer vertical rods and multiple lower outer horizontal rods arranged along the length direction of the lower outer vertical rods.

[0016] Optionally, a standing plate is fixedly connected to the bottom ends of the lower inner ladder and the lower outer ladder.

[0017] Optionally, the lower inner cross bar, the lower cross bar and the lower outer cross bar are fixedly connected end to end to form a directional support structure.

[0018] Optionally, the lower inner ladder is an L-shaped inner ladder, comprising two vertically arranged L-shaped inner suspension rods and a plurality of lower inner cross bars arranged along the vertical direction of the L-shaped inner suspension rods; the lower outer ladder is arranged parallel to the outer side of the upper inner ladder, comprising two vertically arranged L-shaped outer suspension rods and a plurality of lower inner cross bars arranged along the length direction of the L-shaped outer suspension rods.

[0019] Optionally, a standing plate is fixedly connected to the bottom end of the lower outer ladder, and a vertically arranged support rod is fixedly connected between the lower outer ladder and the lower inner ladder.

[0020] Optionally, a fourth transverse movement assembly is fixedly connected to the inner side of the L-shaped inner ladder, and the fourth transverse movement assembly includes a horizontally fixed push-pull motor and a fourth transfer wheel hinged to the output end of the push-pull motor.

[0021] As described above, the portable hanging ladder for inspecting bridge supports of the present invention has at least the following beneficial effects:

[0022] The utility model splits the hanging ladder into a detachable and assembled upper bracket and a lower bracket. The detachable and assembled upper bracket and lower bracket reduce the space occupied by the hanging ladder during transportation and storage, which greatly facilitates the transportation of the hanging ladder. The upper bracket and the lower bracket are designed to be a hollow structure surrounded by an inner ladder, an outer ladder and a cross bar. The hollow accommodating hanging ladder design provides a safe working platform for inspectors. Compared with traditional hanging ladders, inspectors can now be inside this accommodating space to inspect the bottom of the bridge and bridge supports. This change not only increases the working angle of the inspectors and broadens the working perspective, but also significantly enhances the safety of high-altitude operations. When working inside the accommodating ladder, inspectors can be effectively protected. The installation of multiple sets of transverse moving components fixed on the inner side of the inner ladder provides great convenience for the lateral movement of the hanging ladder along the bridge guardrail. Inspectors can easily adjust the position of the hanging ladder according to work requirements without the need for frequent disassembly and reinstallation, thereby greatly improving work efficiency.

[0023] The utility model designs the upper bracket into a U-shaped structure, which is convenient for hanging and fixing the hanging ladder to the bridge guardrail. The opening of the U-shaped bracket adapts to the bridge guardrail without complicated installation steps or additional fixing devices, and can achieve stable hanging and fixing, thereby simplifying the installation process of the hanging ladder; among the multiple sets of transverse movement components located on the inner side of the upper bracket, the third transverse movement component is equipped with a push-pull motor, and the extension length of the push-pull motor output shaft is adjusted to achieve clamping and fixing of bridge guardrails of different thicknesses, ensuring that the hanging ladder can remain stable in various bridge environments, improving the applicability and flexibility of the hanging ladder, and reducing the difficulty of installation caused by differences in guardrail sizes. The L-shaped lower bracket design provides a larger space for inspectors to move around, and also enables them to stand more easily at the bottom of the bridge and inspect the bottom of the bridge and bridge supports at close range, thus improving the accuracy and efficiency of the inspection work. At the same time, the stable structure of the L-shaped bracket also provides reliable safety protection for inspectors. The detachable and assembled upper and lower brackets and multiple models of lower brackets are not only convenient for transportation and storage, but also can adapt to more types of bridge structures and inspection requirements, thus enhancing the versatility and flexibility of the hanging ladder and enabling it to be widely used in different types of bridge inspection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is another schematic diagram of the overall structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the upper bracket of the utility model;

[0027] Figure 4 For this utility model Figure 3 A in the middle is an enlarged schematic diagram;

[0028] Figure 5 This is a schematic diagram of the overall structure of the L-shaped lower bracket of the utility model;

[0029] Figure 6 For this utility model Figure 5 The enlarged schematic diagram of point B in the middle;

[0030] Figure 7 This is a schematic diagram of the overall structure of a lower bracket of this utility model.

[0031] Component number description

[0032] 1. Upper bracket; 101. Upper inner ladder; 102. Upper outer ladder; 103. Upper crossbar; 2. Lower bracket; 201. Lower inner ladder; 202. Lower outer ladder; 203. Lower crossbar; 3. Transverse movement assembly; 301. Fixing part; 302. Push-pull motor; 303. Articulated wheel; 4. Standing board. DETAILED DESCRIPTION

[0033] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0034] See also Figures 1 to 7 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0035] The following embodiments are for illustration only and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0036] See also Figures 1 to 7The utility model provides a portable hanging ladder for inspecting bridge supports, comprising an upper bracket 1, a lower bracket 2 and a transverse movement assembly 3; the upper bracket 1 comprises an upper inner ladder 101 and an upper outer ladder 102; a plurality of upper cross bars 103 are fixedly connected between the upper inner ladder 101 and the upper outer ladder 102, and a hollow accommodation space is formed by enclosing the plurality of upper cross bars 103; the top end of the lower bracket 2 is fixedly connected to the bottom end of the upper bracket 1, and comprises a lower inner ladder 201 and a lower outer ladder 102; The ladder 202 (the upper bracket 1 and the lower bracket 2 are detachably connected and can be detachably connected by a pin with a hole and a positioning pin); a plurality of lower cross bars 203 are fixedly connected between the lower inner ladder 201 and the lower outer ladder 202, and a hollow accommodation space is formed by the plurality of lower cross bars 203; the transverse movement components 3 are multiple, and are respectively fixedly connected to the upper inner ladder 101 and the lower inner ladder 201, so as to facilitate the horizontal movement of the hanging ladder. The installed upper bracket 1 and lower bracket 2, the detachable and assembled upper bracket 1 and lower bracket 2 reduce the space occupied by the hanging ladder during transportation and storage, which greatly facilitates the transportation of the hanging ladder. The upper bracket 1 and lower bracket 2 are designed to be a hollow structure surrounded by an inner ladder, an outer ladder and a cross bar. The hollow accommodating hanging ladder design provides a safe working platform for inspectors. Compared with traditional hanging ladders, inspectors can now be inside this accommodating space to inspect the bottom of the bridge and bridge supports. This change not only increases the working angle of the inspectors and broadens the working perspective, but also significantly enhances the safety of high-altitude operations. When working inside the accommodating ladder, inspectors can be effectively protected. The addition of multiple sets of transverse moving components 3 fixed on the inner side of the inner ladder provides great convenience for the lateral movement of the hanging ladder along the bridge guardrail. Inspectors can easily adjust the position of the hanging ladder according to work requirements, without the need for frequent disassembly and reinstallation, thereby greatly improving work efficiency.

[0037] In this embodiment, please refer to Figures 1 to 4The upper inner ladder 101 is a U-shaped inner ladder, comprising two vertically arranged U-shaped inner hanging rods and a plurality of upper inner cross bars arranged along the length direction of the U-shaped inner hanging rods; the upper outer ladder 102 is arranged in parallel on the outer side of the upper inner ladder 101, comprising two vertically arranged U-shaped outer hanging rods and a plurality of upper outer cross bars arranged along the length direction of the U-shaped outer hanging rods, the upper inner cross bars, the upper cross bars 103 and the upper outer cross bars are fixedly connected end to end to form a square supporting structure, and the inner side of the U-shaped inner hanging rod is fixedly connected to the first transverse assembly 3, the second transverse assembly 3 and the third transverse assembly Part 3; the first transverse movement component 3 is located on the inner side of the bridge guardrail, including a fixing component 301 fixedly connected to the U-shaped inner hanging rod and a first articulated wheel 303 hinged to the fixing component 301; the second transverse movement component is located on the top of the bridge guardrail, including a fixing component 301 fixedly connected to the U-shaped inner hanging rod and a second articulated wheel 303 hinged to the fixing component 301; the third transverse movement component 3 is located on the outer side of the bridge guardrail, including a horizontally fixed push-pull motor 302 and a third handover wheel hinged to the output end of the push-pull motor 302, the lower inner ladder 201 includes two The lower inner vertical rod and a plurality of lower inner cross rods arranged along the length direction of the lower inner vertical rod; the lower outer ladder 202 is arranged in parallel on the outside of the lower inner ladder 201, including two lower outer vertical rods and a plurality of lower outer cross rods arranged along the length direction of the lower outer vertical rod, the bottom ends of the lower inner ladder 201 and the lower outer ladder 202 are fixedly connected with a standing plate 4, and the lower inner cross rod, the lower cross rod 203 and the lower outer cross rod are fixedly connected end to end to form a directional support structure. The present application designs the upper bracket 1 into a U-shaped structure, which is convenient for hanging and fixing the hanging ladder to the bridge guardrail. The U-shaped The opening of the bracket is adapted to the bridge guardrail and can achieve stable hanging and fixation without complicated installation steps or additional fixing devices, which simplifies the installation process of the hanging ladder; among the multiple sets of transverse movement components 3 located on the inner side of the upper bracket 1, the third transverse movement component 3 is equipped with a push-pull motor 302. By adjusting the elongation length of the output shaft of the push-pull motor 302, it is possible to clamp and fix bridge guardrails of different thicknesses, ensuring that the hanging ladder can remain stable in various bridge environments, improving the applicability and flexibility of the hanging ladder, and reducing the installation difficulty and safety risks caused by differences in guardrail sizes.

[0038] In this embodiment, please refer to Figure 1 、 Figure 5 and Figure 6The lower inner ladder 201 is an L-shaped inner ladder, comprising two vertically arranged L-shaped inner suspension rods and a plurality of lower inner cross rods arranged along the vertical direction of the L-shaped inner suspension rods; the lower outer ladder 202 is arranged in parallel on the outer side of the upper inner ladder 101, comprising two vertically arranged L-shaped outer suspension rods and a plurality of lower inner cross rods arranged along the length direction of the L-shaped outer suspension rods, the bottom end of the lower outer ladder 202 is fixedly connected to a standing plate 4, and a vertically arranged support rod is fixedly connected between the lower outer ladder 202 and the lower inner ladder 201, the inner side of the L-shaped inner ladder is fixedly connected to a fourth transverse movement assembly 3, the fourth transverse movement group comprises a horizontally fixed push-pull motor 302 and a fourth transfer wheel hinged at the output end of the push-pull motor 302, The present application designs the lower bracket 2 into an L-shape and adds a standing board 4 at the bottom. The L-shaped lower bracket 2 design provides a larger space for inspection personnel, and also enables inspection personnel to stand more easily at the bottom of the bridge and inspect the bottom of the bridge and bridge supports at close range, thereby improving the accuracy and efficiency of the inspection work. At the same time, the stable structure of the L-shaped bracket also provides reliable safety protection for inspection personnel. The detachable and assembled upper bracket 1 and lower bracket 2 and multiple models of lower bracket 2 are not only convenient for transportation and storage, but also can adapt to more types of bridge structures and inspection needs, thereby enhancing the versatility and flexibility of the hanging ladder and enabling the hanging ladder to be widely used in different types of bridge inspection work.

[0039] In summary, the present invention overcomes various shortcomings in the prior art.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A portable ladder for inspecting bridge supports, characterized by: It includes an upper bracket, a lower bracket and a transverse movement assembly; The upper bracket includes an upper inner ladder and an upper outer ladder; a plurality of upper cross bars are fixedly connected between the upper inner ladder and the upper outer ladder, and together with the plurality of upper cross bars, a hollow accommodation space is formed; The top end of the lower bracket is fixedly connected to the bottom end of the upper bracket, and includes a lower inner ladder and a lower outer ladder; a plurality of lower cross bars are fixedly connected between the lower inner ladder and the lower outer ladder, and together with the plurality of lower cross bars, a hollow accommodation space is formed; There are multiple transverse movement components, which are fixedly connected to the upper inner ladder and the lower inner ladder respectively, so as to facilitate the transverse movement of the hanging ladder.

2. A portable hanging ladder for inspecting bridge supports according to claim 1, characterized in that: The upper inner ladder is a U-shaped inner ladder, comprising two vertically arranged U-shaped inner hanging rods and multiple upper inner cross bars arranged along the length direction of the U-shaped inner hanging rods; the upper outer ladder is arranged parallel to the outer side of the upper inner ladder, comprising two vertically arranged U-shaped outer hanging rods and multiple upper outer cross bars arranged along the length direction of the U-shaped outer hanging rods.

3. The portable ladder for inspecting bridge supports according to claim 2, characterized in that: The upper inner cross bar, the upper cross bar and the upper outer cross bar are fixedly connected end to end to form a square support structure.

4. The portable ladder for inspecting bridge supports according to claim 2, characterized in that: The inner side of the U-shaped inner hanging rod is fixedly connected with a first transverse moving assembly, a second transverse moving assembly and a third transverse moving assembly; The first transverse movement assembly is located on the inner side of the bridge guardrail and includes a fixing member fixedly connected to the U-shaped inner hanging rod and a first articulated wheel hinged to the fixing member; The second transverse moving assembly is located at the top of the bridge guardrail and includes a fixing member fixedly connected to the U-shaped inner hanging rod and a second articulated wheel hinged to the fixing member; The third transverse movement assembly is located outside the bridge guardrail and includes a horizontally fixed push-pull motor and a third transfer wheel hinged to the output end of the push-pull motor.

5. The portable ladder for inspecting bridge supports according to claim 1, characterized in that: The lower inner ladder includes two lower inner vertical rods and multiple lower inner horizontal rods arranged along the length direction of the lower inner vertical rods; the lower outer ladder is arranged parallel to the outer side of the lower inner ladder, and includes two lower outer vertical rods and multiple lower outer horizontal rods arranged along the length direction of the lower outer vertical rods.

6. A portable ladder for inspecting bridge supports according to claim 5, characterized in that; The bottom ends of the lower inner ladder and the lower outer ladder are fixedly connected with standing boards.

7. The portable ladder for inspecting bridge supports according to claim 5, characterized in that: The lower inner cross bar, the lower cross bar and the lower outer cross bar are fixedly connected end to end to form a directional support structure.

8. The portable ladder for inspecting bridge supports according to claim 1, characterized in that: The lower inner ladder is an L-shaped inner ladder, comprising two vertically arranged L-shaped inner suspension rods and a plurality of lower inner cross rods arranged along the vertical direction of the L-shaped inner suspension rods; the lower outer ladder is arranged parallel to the outer side of the upper inner ladder, comprising two vertically arranged L-shaped outer suspension rods and a plurality of lower inner cross rods arranged along the length direction of the L-shaped outer suspension rods.

9. The portable ladder for inspecting bridge supports according to claim 8, characterized in that: A standing plate is fixedly connected to the bottom end of the lower outer ladder, and a vertically arranged support rod is fixedly connected between the lower outer ladder and the lower inner ladder.

10. The portable ladder for inspecting bridge supports according to claim 8, characterized in that: The inner side of the L-shaped inner ladder is fixedly connected with a fourth transverse movement assembly, and the fourth transverse movement assembly includes a horizontally fixed push-pull motor and a fourth handover wheel hinged at the output end of the push-pull motor.

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