Safety protection steel ladder tool device for steel structure bridge manufacturing

Abstract

The utility model relates to the field of machinery, in particular to a safety protection steel ladder tool device for manufacturing a steel structure bridge. A fixing plate (3) is welded above the ladder, and adjusting holes (7) are formed in the fixing plate (3); the clamp further comprises a clamping part (1), the clamping part (1) comprises a clamping head (2), the clamping head (2) comprises an upper plate (21) and a lower plate (22), and the upper plate (21) and the lower plate (22) are connected through a connecting plate (25). The connecting plate (25) is connected with a clamping plate (6), and a bolt hole in the clamping plate (6) is fixed after a bolt (5) penetrates through an adjusting hole (7); a clamping gap (24) is formed between the upper plate (21) and the lower plate (22); the clamping gap (24) is formed between the upper plate (21) and the lower plate (22), the flange plate of the steel box girder is clamped in the clamping gap (24), and the clamping bolt (23) can clamp the flange plate of the steel box girder after penetrating through the upper plate (21) or the lower plate (22).

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a safety protection steel ladder tooling device for manufacturing steel structure bridges. Background Art

[0002] During the assembly and welding process of steel box girders in the workshop, since the box girders are relatively high from the ground and the height of the frame is such that the top surfaces of some box girders are about four or five meters above the ground, workers have to go up and down frequently during the operation, which is extremely inconvenient without a safety steel ladder.

[0003] Our company conducted a detailed investigation of the workshop workers and conducted an in-depth investigation of the mobile steel ladders currently in use.

[0004] On May 9, 2024, a search was conducted in the Chinese Patent Publication Database with "ladder and height and clamping and adjustment" as abstract keywords, and 8 documents were found, namely: CN117703252A-A non-slip multifunctional ladder with removable fulcrum; CN217738221U-A convenient and easy-to-use steel bar scanner; CN214886785U-A safety clamp for a climbing ladder for auto parts shelves; CN219514682U-A maintenance device for garden environmental protection; CN215749217U-A robotic gripper for taking and placing books in libraries; CN205415504U-Advertising paster; CN211573957U-A sticky electric pole safety ring sticking auxiliary bracket; CN114802607A-A high-safety adaptive boarding ladder and control method.

[0005] After reading through the above technologies, it was found that none of the above technologies could solve the problem of safe clamping of high ladders encountered by our unit. Utility Model Content

[0006] Purpose of the utility model: To provide a better safety protection steel ladder tooling device for steel structure bridge production. The specific purpose can be seen in the multiple substantial technical effects of the specific implementation part.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A safety protection steel ladder tooling device for manufacturing a steel structure bridge, characterized in that:

[0009] The tooling device comprises a ladder 4, a fixing plate 3 is welded on the top of the ladder, and an adjustment hole 7 is arranged on the fixing plate 3;

[0010] The device further comprises a clamping portion 1, wherein the clamping portion 1 comprises a clamping head 2, and the clamping head 2 comprises an upper plate 21 and a lower plate 22, wherein the upper plate 21 and the lower plate 22 are connected by a connecting plate 25;

[0011] The connecting plate 25 is connected to the fixing plate 6, and the bolt holes on the fixing plate 6 are fixed by passing the bolts 5 through the adjustment holes 7;

[0012] There is a clamping gap 24 between the upper plate 21 and the lower plate 22;

[0013] The steel box girder flange plate is clamped in the clamping gap 24 and further includes a clamping bolt 23 . The clamping bolt 23 passes through the upper plate 21 or the lower plate 22 and can clamp the steel box girder flange plate.

[0014] A further technical solution of the present invention is that the clamping part 1 includes two groups, which are respectively located on both sides of the ladder.

[0015] A further technical solution of the present invention is that the upper and lower positions of the locking plate 6 behind the clamping part 1 can be adjusted up and down on the fixing plate 3 .

[0016] A further technical solution of the present invention is that the ladder comprises a ladder body 41 , the ladder body 41 comprises a plurality of treading parts 42 , and the bottom of the ladder comprises a bottom plate 44 and an oblique support 43 .

[0017] The present invention, employing the above technical solution, offers the following advantages over existing technologies: A movable and fixable U-shaped sliding groove is provided at the top of the steel ladder, allowing it to be fixed to box girders at different heights. This secures the ladder, significantly ensuring worker safety and saving the company significant financial losses from potential safety incidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to further illustrate the present invention, the following is further described with reference to the accompanying drawings:

[0019] Figure 1 It is a side structural diagram of the invention;

[0020] Figure 2 This is a front structural diagram of the invention;

[0021] Figure 3 This is a structural diagram of a ladder;

[0022] Figure 4 It is the structural diagram of the clamping part;

[0023] Figure 5 This is the front structural diagram of the clamping part;

[0024] Figure 6 It is a top view of the clamping part;

[0025] Figure 7 Mechanism diagram of position adjustment hole;

[0026] Among them: 1. Clamping part; 2. Clamping head; 3. Fixing plate; 4. Ladder; 5. Bolt; 6. Locking plate; 7. Adjustment hole; 8. Fixing bolt; 41. Ladder body; 42. Stepping part; 43. Oblique support; 44. Bottom plate; 21. Upper plate; 22. Lower plate; 23. Clamping bolt; 24. Clamping gap; 25. Connecting plate. DETAILED DESCRIPTION

[0027] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] This patent provides multiple parallel solutions. The differences in descriptions are improvements or parallel solutions based on the basic solution. Each solution has its own unique characteristics. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described in this article can be any fixing method such as threaded fixing, bolt fixing, or gluing.

[0030] Example 1: Combination Figure 1 and Figure 2A safety protection steel ladder tooling device for manufacturing steel structure bridges, characterized in that:

[0031] The tooling device comprises a ladder 4, a fixing plate 3 is welded on the top of the ladder, and an adjustment hole 7 is arranged on the fixing plate 3;

[0032] The device further comprises a clamping portion 1, wherein the clamping portion 1 comprises a clamping head 2, and the clamping head 2 comprises an upper plate 21 and a lower plate 22, wherein the upper plate 21 and the lower plate 22 are connected by a connecting plate 25;

[0033] The connecting plate 25 is connected to the fixing plate 6, and the bolt holes on the fixing plate 6 are fixed by passing the bolts 5 through the adjustment holes 7;

[0034] There is a clamping gap 24 between the upper plate 21 and the lower plate 22;

[0035] The steel box girder flange plate is clamped in the clamping gap 24 and also includes a clamping bolt 23. The clamping bolt 23 can clamp the steel box girder flange plate after passing through the upper plate 21 or the lower plate 22. The substantial technical effect and implementation process of the technical solution here, i.e. the basic function, are as follows: the main steel ladder is made of The tubes are welded together for ease of movement and lightness. The U-shaped channel consists of upper and lower clamping plates and fasteners, while the sliding mechanism comprises a slide plate and a fixing plate. The slide plate is welded to a steel ladder, and the U-shaped channel is fixed to the flange plate of the steel box girder. After the size is adjusted to the appropriate level, it can be fixed with a fixing plate. This allows workers to reach the top of the steel box girder for processing steel box girders of different heights using this safety steel ladder.

[0036] Considering the different heights of the products during the production process, the single ladder currently used on site has been rationally optimized to ensure the safety of personnel during the operation. The specific optimization plan is as follows:

[0037] The ladder beams, rungs, and legs are all made of φ25*3 steel pipes. A movable and fixable U-shaped sliding groove is installed at the top of the ladder to secure it to box girders at different heights. This fixed ladder significantly ensures the safety of the workers and saves the company from financial losses caused by safety accidents.

[0038] More specifically, the upper part can be relatively fixed by the clamping part 1, the fixing effect is better, and the clamping position can be properly adjusted, which makes people safer.

[0039] Example 2: As a further improved solution, a parallel solution, or an optional independent solution, the clamping part 1 includes two groups, one on each side of the ladder. The substantial technical effect and implementation process of this technical solution, i.e., the basic function, are as follows: clamping the entire ladder from both sides.

[0040] Example 3: As a further improved solution, parallel solution, or optional independent solution, the upper and lower positions of the locking plate 6 behind the clamping portion 1 can be adjusted on the fixing plate 3. The substantial technical effect and implementation process of the technical solution herein, i.e., the basic function, are as follows: the upper and lower positions can be adjusted to accommodate different heights.

[0041] Example 4: As a further improved solution, a parallel solution, or an optional independent solution, the ladder includes a ladder body 41, which includes multiple sets of stepping parts 42, and the bottom of the ladder includes a base plate 44 and diagonal supports 43. The substantial technical effects and implementation process of this technical solution, i.e., the basic functions, are as follows: the overall structure is more stable.

[0042] Innovatively, each of the above effects exists independently, and a set of structures can be used to combine the above results.

[0043] It should be noted that the multiple solutions provided by this patent include the basic solutions themselves, are independent of each other, and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications are intended to fall within the scope of the claims.

Claims

1. A safety protection steel ladder tooling device for steel structure bridge manufacturing, characterized in that: The tooling device comprises a ladder (4), a fixing plate (3) is welded on the top of the ladder, and an adjustment hole (7) is arranged on the fixing plate (3); It also includes a clamping portion (1), the clamping portion (1) includes a clamping head (2), the clamping head (2) includes an upper plate (21) and a lower plate (22), and the upper plate (21) and the lower plate (22) are connected by a connecting plate (25); The connecting plate (25) is connected to the fixing plate (6), and the bolt holes on the fixing plate (6) are fixed by passing the bolts (5) through the adjustment holes (7); A clamping gap (24) is defined between the upper plate (21) and the lower plate (22); The steel box girder flange plate is clamped in the clamping gap (24) and also includes a clamping bolt (23). The clamping bolt (23) is capable of clamping the steel box girder flange plate after passing through the upper plate (21) or the lower plate (22).

2. A safety protection steel ladder tooling device for manufacturing a steel structure bridge according to claim 1, characterized in that: The clamping part (1) comprises two groups, one located on each side of the ladder.

3. A safety protection steel ladder tooling device for manufacturing a steel structure bridge according to claim 1, characterized in that: The upper and lower positions of the locking plate (6) behind the clamping part (1) can be adjusted up and down on the fixing plate (3).

4. A safety protection steel ladder tooling device for manufacturing a steel structure bridge according to claim 1, characterized in that: The ladder comprises a ladder body (41), the ladder body (41) comprises a plurality of treading parts (42), and the bottom of the ladder comprises a bottom plate (44) and an oblique support (43).

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