Auxiliary punching device suitable for steel truss girder bridge flange plate rainwater pipe

By designing fixing components, lifting components and roller devices for the flange plate of steel truss bridges, the time-consuming and labor-intensive problems of mechanical equipment and manual operation during the perforation of rainwater pipes are solved, and an efficient and safe perforation effect is achieved.

CN222206050UActive Publication Date: 2024-12-20SCEGC MECHANIZED CONSTR GRP COMPANY
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Patent Information

Application Number
CN202420740197.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-10
Publication Date
2024-12-20
Estimated Expiration
2034-04-10

AI Technical Summary

Technical Problem

The perforation process of the stormwater pipe of the steel truss bridge flange plate requires a large amount of mechanical equipment and manual operation, which is time-consuming and labor-intensive, and has a high risk.

Method used

An auxiliary perforation device including fixing components, lifting components and rollers is designed, and is fixed to the bridge flange plate through U-shaped slots and bolts. The lifting function is achieved using the C-shaped contoured groove columns and sliders. The roller is close to the outer wall of the rainwater pipe. To reduce friction, improve perforation efficiency and safety.

Benefits of technology

This device can effectively improve the efficiency and accuracy of rainwater pipe perforation, reduce manpower and material consumption, ensure the safety and reliability of the perforation process, and adapt to different heights of needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

An auxiliary punching device suitable for a steel truss girder bridge flange plate rainwater pipe comprises a fixing assembly, lifting assemblies, a transverse plate and rolling wheels, the lifting assemblies are vertically arranged on the two sides of the top of the fixing assembly, the transverse plate is horizontally arranged on the tops of the lifting assemblies, and the rolling wheels are arranged on the top of the transverse plate; a U-shaped clamping groove of the fixing assembly is fixed to a stiffening transverse plate at the bottom of a flange plate of the steel truss girder bridge, fixing and clamping are conducted by screwing a first bolt, a sliding plate ascends and descends in a groove column by screwing a second bolt, the transverse plate is driven to adjust the height to the bottom elevation position of a rainwater pipe hole, and thrust is applied to the two ends of the steel truss girder bridge; the rainwater pipe slides and is pushed under the auxiliary action of the device; the problems that in the prior art, a steel truss girder bridge flange plate rainwater pipe needs a large number of mechanical equipment and manual punching, time and labor are wasted, and danger is large are solved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of steel truss bridge flange plate rainwater pipe installation, and in particular relates to an auxiliary perforating device suitable for steel truss bridge flange plate rainwater pipe. Background Art

[0002] With the rapid development of my country's transportation infrastructure, steel truss bridges have also begun to be widely promoted and constructed, and the drainage system provides great protection for the safety and durability of steel truss bridges during their service. In order to improve the service life of the drainage system of steel truss bridges, the current rainwater pipes are all made of steel, which is heavy in weight; and the rainwater pipes of the flange plates (sidewalk plates) of steel truss bridges are designed along the longitudinal length of the bridge and are relatively long; the current steel truss bridge has a large traffic volume, a wide transverse width of the bridge, and a large amount of water flow on the bridge deck, resulting in a large diameter of the rainwater pipe. Traditionally, the rainwater pipes of the flange plates of steel truss bridges are divided into sections and hoisted at two points on the ground, which requires the use of a large number of mechanical equipment; and the rainwater pipes need to be manually perforated, which is time-consuming, labor-intensive, and extremely dangerous. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides an auxiliary perforation device suitable for the steel truss bridge flange plate rainwater pipe, so as to solve the problems in the prior art that the steel truss bridge flange plate rainwater pipe requires the use of a large number of mechanical equipment and manual perforation, which is time-consuming, labor-intensive and dangerous.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The invention discloses an auxiliary perforating device for a rainwater pipe of a flange plate of a steel truss bridge, comprising a fixing component, a lifting component, a cross plate and a roller. The lifting components are vertically arranged on both sides of the top of the fixing component, the cross plate is horizontally arranged on the top of the lifting component, and the roller is arranged on the top of the cross plate.

[0006] Furthermore, the fixing assembly includes a U-shaped slot and a first bolt, a bolt hole is provided at the top of the U-shaped slot, and the first bolt fixes the U-shaped slot to the flange plate of the steel truss bridge through the bolt hole; the first bolt is a short bolt.

[0007] Furthermore, the first bolt is located inside the lifting assembly.

[0008] Furthermore, the lifting assembly includes a slot column, a slide plate, a baffle plate and a second bolt. The slot column is arranged on both sides of the top of the U-shaped slot, a slide plate is arranged in the slot column, a baffle plate is horizontally arranged on the outer side of the top of the slide plate, and a second bolt is vertically arranged on the bottom of the baffle plate; the second bolt is a long bolt, and the long bolt is tightened to drive the slide plate to rise and fall on the slot column; the slide plate is welded to the cross plate.

[0009] Furthermore, the inner wall profile of the slot column and the outer wall profile of the slide plate are both C-shaped.

[0010] Furthermore, the second bolt can drive the slide plate to rise and fall.

[0011] Furthermore, a nut is sleeved on the outer side of the second bolt.

[0012] Furthermore, the roller is half-embedded on the transverse plate so that the rainwater pipe can slide and penetrate in the rainwater pipe hole on the flange plate of the steel truss bridge.

[0013] Furthermore, there are a plurality of rollers.

[0014] Furthermore, the roller is closely attached to the outer wall of the rainwater pipe under the action of the lifting assembly, so that the rainwater pipe can be pierced by the roller under the action of thrust, thus saving manpower and material resources.

[0015] Furthermore, the roller is closely attached to the outer wall of the rainwater pipe under the action of the lifting assembly.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects:

[0017] The invention discloses an auxiliary perforating device for rainwater pipes on flange plates of steel truss bridges, comprising a fixing assembly, which serves to stabilize the entire device and can be firmly fixed on the flange plates of steel truss bridges to prevent the device from moving or shaking during the perforating process. A lifting assembly is arranged on the top of the fixing assembly, and the lifting assembly can adapt to the perforating requirements of different heights. By adjusting the lifting assembly, the height of the cross plate and the roller can be easily changed, so that the roller can be accurately aligned with the position to be perforated. A cross plate is arranged on the top of the lifting assembly, and the plate provides a stable platform for supporting the roller. The design of the roller can enable the rainwater pipe to slide smoothly during the perforating process, reduce friction, and thus pass through the flange plate more easily. In general, the design of the auxiliary perforating device for rainwater pipes on flange plates of steel truss bridges takes into account the convenience and efficiency of actual operation, can effectively improve the efficiency and accuracy of rainwater pipe perforating work, saves time and effort, and is safe and reliable.

[0018] Furthermore, the fixing component mainly includes a U-shaped slot, which can fit the shape of the steel truss bridge flange plate well, thereby providing stable support. Bolt holes are arranged on the top of the U-shaped slot. By inserting the first bolts into these bolt holes, the U-shaped slot can be firmly fixed to the steel truss bridge flange plate. This fixing method is simple and effective, which can ensure that the entire device will not be displaced during the punching process, thereby ensuring the accuracy of the punching; in addition, the use of bolts for fixing is also adjustable, and the tightness of the bolts can be adjusted according to actual needs to achieve the best fixing effect. The bolt connection method is also easy to disassemble and reinstall, so that the device can be used in different positions or on different steel truss bridges. Through the combination of the U-shaped slot and the bolts, the steel truss bridge flange plate is firmly fixed, which provides a solid foundation for subsequent lifting, lateral movement and punching operations.

[0019] Furthermore, the lifting assembly mainly includes slot columns, which are arranged on both sides of the top of the U-shaped slot and play a supporting and guiding role. Second bolts are vertically arranged on the outer top of the slot columns. These bolts are used to fix the slide at a specific height position, thereby locking the current height of the lifting assembly. A slide is arranged inside the slot column. The slide can slide up and down in the slot column to realize the lifting function. A baffle is arranged on the outer top of the slide. The baffle is used to prevent the slide from accidentally falling off during the lifting process, thereby increasing the safety of the entire device.

[0020] Furthermore, the inner wall profile of the slot column and the outer wall profile of the slide are both C-shaped. The C-shaped profile enables a close fit between the slot column and the slide, and the slide can slide smoothly inside the slot column without shaking or jamming. This close fit helps to maintain the stability of the lifting assembly and ensures that no unexpected displacement or tilting occurs during the lifting process. The C-shaped profile design also increases the contact area between the slot column and the slide, which means that the friction between them is greater, thereby improving the smoothness and reliability of the lifting operation. The larger contact area also helps to disperse the load and reduce the pressure on a single point, further extending the service life of the device. The C-shaped profile design also has good guiding properties. Since the shapes of the slot column and the slide match, the slide can move smoothly along the inner wall profile of the slot column during the lifting process, reducing the possibility of displacement, which helps to ensure the accuracy of the lifting operation and enables the cross plate and roller to accurately reach the predetermined working position.

[0021] Furthermore, the second bolt can drive the skateboard to rise and fall; when the height of the cross plate and the roller needs to be adjusted, it can be achieved by rotating the second bolt. Since the second bolt is vertically arranged on the outer top of the slot column and there is a certain connection or action mechanism between the second bolt and the skateboard, rotating the bolt can cause it to produce relative movement with the skateboard. This relative movement will cause the skateboard to slide up and down inside the slot column, thereby realizing the lifting function, providing a convenient and precise lifting and lowering adjustment function for the entire auxiliary perforation device, meeting the requirements of different working environments and height requirements.

[0022] Furthermore, the roller is tightly attached to the outer wall of the rainwater pipe under the action of the lifting assembly. When the lifting assembly is adjusted to a suitable height, the roller will move therewith to contact the outer wall of the rainwater pipe. Since the roller is designed with rolling characteristics, it can roll easily when in contact with the outer wall of the rainwater pipe, reducing friction and resistance, so that the rainwater pipe can pass through the flange plate more smoothly; the characteristic of the roller tightly attached to the outer wall of the rainwater pipe also ensures the accuracy of the perforation. Due to the close contact between the roller and the outer wall of the rainwater pipe, it can be ensured that the rainwater pipe will not shake or deviate from the predetermined path during the perforation process. This stability is crucial to ensuring the accuracy of the perforation and preventing the rainwater pipe from being damaged; the design of the roller also takes into account wear resistance and durability, and is made of high-hardness, high-wear-resistant materials to ensure that it can maintain good rolling performance and stability during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the utility model;

[0024] Figure 2 It is a side view of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the utility model when in use.

[0026] Among them, 1. fixing assembly; 10. U-shaped slot; 11. first bolt; 2. lifting assembly; 20. slot column; 21. slide plate; 22. second bolt; 23. nut; 24. baffle; 3. cross plate; 4. roller. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1An auxiliary perforating device for rainwater pipes on flange plates of steel truss bridges comprises a fixing component 1, a lifting component 2, a transverse plate 3 and a roller 4. The lifting components 2 are vertically arranged on both sides of the top of the fixing component 1, the transverse plate 3 is horizontally arranged on the top of the lifting component 2, and the roller 4 is arranged on the top of the transverse plate 3. The design of the auxiliary perforating device for rainwater pipes on flange plates of steel truss bridges takes into account the convenience and efficiency of actual operation, can effectively improve the efficiency and accuracy of rainwater pipe perforating work, save time and effort, and is safe and reliable.

[0034] See also Figure 2 The fixing assembly 1 includes a U-shaped slot 10, a bolt hole is provided at the top of the U-shaped slot 10, and a first bolt 11 fixes the U-shaped slot 10 to the flange plate of the steel truss bridge through the bolt hole; the first bolt 11 is a short bolt; the U-shaped slot 10 can fit the shape of the flange plate of the steel truss bridge well, thereby providing stable support, and a bolt hole is provided at the top of the U-shaped slot 10. By inserting the first bolt 11 into these bolt holes, the U-shaped slot 10 can be firmly fixed to the flange plate of the steel truss bridge. This fixing method is simple and effective, and can ensure that the entire installation The device will not be displaced during the punching process, thereby ensuring the accuracy of the punching; in addition, the use of the first bolt 11 for fixing is also adjustable, and the tightness of the first bolt 11 can be adjusted according to actual needs to achieve the best fixing effect. The bolt connection method is also convenient for disassembly and reinstallation, so that the device can be used in different positions or on different steel truss bridges. Through the combination of the U-shaped slot 10 and the first bolt 11, the flange plate of the steel truss bridge is firmly fixed, which provides a solid foundation for subsequent lifting, lateral movement and punching operations.

[0035] The first bolt 11 is located inside the lifting assembly 2 .

[0036] The lifting assembly 2 includes a slot column 20, a slide plate 21, a baffle plate 24 and a second bolt 22. The slot column 20 is arranged on both sides of the top of the U-shaped slot 10, and a slide plate 21 is arranged inside the slot column 20. A baffle plate 24 is horizontally arranged on the outer side of the top of the slide plate 21, and a second bolt 22 is vertically arranged at the bottom of the baffle plate 24; the second bolt 22 is a long bolt, and the long bolt 22 is tightened to drive the slide plate 21 to be lifted and lowered on the slot column 20; the slide plate 21 is welded to the cross plate 3; these slot columns are arranged on both sides of the top of the U-shaped slot, which play a supporting and guiding role. The second bolts are vertically arranged on the top of the outer side of the slot column. These bolts are used to fix the slide plate at a specific height position, thereby locking the current height of the lifting assembly, and a slide plate is arranged inside the slot column. The slide plate can slide up and down in the slot column to realize the lifting function. A baffle plate is arranged on the top of the outer side of the slide plate. The baffle plate is used to prevent the slide plate from accidentally falling off during the lifting process, thereby increasing the safety of the entire device.

[0037] The inner wall profile of the slot column 20 and the outer wall profile of the slide plate 21 are both C-shaped; the C-shaped profile enables the slot column 20 and the slide plate 21 to fit tightly, and the slide plate 21 can slide smoothly inside the slot column 20 without shaking or jamming. This tight fit helps to maintain the stability of the lifting assembly and ensure that no unexpected offset or tilt occurs during the lifting process; the C-shaped profile design also increases the contact area between the slot column 20 and the slide plate 21, which means that the friction between them is greater, thereby improving the smoothness and reliability of the lifting operation. The larger contact area also helps to disperse the load, reduce the pressure on a single point, and further extend the service life of the device; the C-shaped profile design also has good guiding properties. Since the shapes of the slot column 20 and the slide plate 21 match, the slide plate 21 can move smoothly along the inner wall profile of the slot column 20 during the lifting process, reducing the possibility of offset, which helps to ensure the accuracy of the lifting operation so that the cross plate and roller can accurately reach the predetermined working position.

[0038] The second bolt 22 can drive the slide plate 21 to move up and down; when the height of the cross plate 3 and the roller 4 needs to be adjusted, it can be achieved by rotating the second bolt 22. Since there is a certain connection or action mechanism between the second bolt 22 and the slide plate 21, rotating the second bolt 22 can cause it to move relative to the slide plate 21. This relative movement will cause the slide plate 21 to slide up and down inside the slot column 20, thereby realizing the lifting function, providing a convenient and precise lifting and lowering adjustment function for the entire auxiliary perforation device, meeting the requirements of different working environments and height requirements.

[0039] The transverse plate 3 is provided with a roller 4 so that the rainwater pipe can slide and penetrate in the rainwater pipe hole on the flange plate of the steel truss bridge.

[0040] There are several rollers 4.

[0041] The roller 4 is tightly attached to the outer wall of the rainwater pipe under the action of the lifting component 2, so that the rainwater pipe can slide and perforate through the roller 4 under the action of thrust; when the lifting component 2 is adjusted to a suitable height, the roller 4 will move to contact the outer wall of the rainwater pipe. Since the roller 4 is designed with rolling characteristics, it can roll easily when in contact with the outer wall of the rainwater pipe, reducing friction and resistance, so that the rainwater pipe can pass through the flange plate more smoothly; the characteristic of the roller 4 that the roller 4 is tightly attached to the outer wall of the rainwater pipe also ensures the accuracy of the perforation. Due to the close contact between the roller 4 and the outer wall of the rainwater pipe, it can be ensured that the rainwater pipe will not shake or deviate from the predetermined path during the perforation process. This stability is crucial to ensuring the accuracy of the perforation and preventing the rainwater pipe from being damaged; the design of the roller 4 also takes into account wear resistance and durability, and is made of high hardness and high wear-resistant materials to ensure that it can still maintain good rolling performance and stability during long-term use.

[0042] Example:

[0043] See also Figure 3 An auxiliary perforating device for a rainwater pipe of a flange plate of a steel truss bridge comprises a fixing component 1, a lifting component 2 is vertically arranged on both sides of the top of the fixing component 1, a horizontal plate 3 is horizontally arranged on the top of the lifting component 2, and a roller 4 is arranged on the top of the horizontal plate 3.

[0044] The fixing assembly 1 includes a U-shaped slot 10, and two bolt holes are arranged on the top of the U-shaped slot 10. The first bolt 11 fixes the U-shaped slot 10 to the flange plate of the steel truss bridge through the bolt hole; the U-shaped slot 10 is 300 mm long, 80 mm high, 100 mm wide, 10 mm thick, and made of Q345B steel; the bolt hole size is M12; the first bolt 11 is a high-strength bolt with a grade of 8.8, a diameter of 12 mm, and a length of 100 mm.

[0045] The lifting assembly 2 includes slot columns 20 arranged on both sides of the top of the U-shaped slot 10, and second bolts 22 are vertically arranged on the outer top of the slot columns 20. Slide plates 21 are respectively arranged in the slot columns 20, and baffles 24 are arranged on the outer top of the slide plates 21; the slot columns 20 are made of Q345B steel with a height of 200 mm, a length of 60 mm, a width of 40 mm, and a bottom end thereof is welded to the top surface of the U-shaped slot 10.

[0046] The inner wall profile of the slot column 10 and the outer wall profile of the slide plate 21 are both C-shaped. The slide plate 21 is nested in the U-shaped slot 10 and can slide along the height direction of the slot column 10. The baffle plate 24 is made of a steel plate with a length of 40mm, a width of 35mm, and a thickness of 10mm, and is welded to the top surface of the outer wall of the slide plate 21. The nut 23 is a hexagonal nut with a diameter of 16mm and a grade of 10.9, which is welded to the top surface of the outer wall of the slot column 10. The second bolt 22 is a high-strength bolt with a length of 210mm and a grade of 10.9; by tightening the long bolt 22, the baffle plate 24 provides a reaction force, driving the slide plate 21 to slide in the slot column 10, and realizing lifting and lowering to adjust the height.

[0047] The cross plate 3 is a steel plate with a length of 250 mm, a width of 40 mm, a thickness of 15 mm, and a material of Q345B. It is welded to the top surface of the two slide plates 21. The cross plate 3 has two rectangular holes with a length of 20 mm and a width of 12 mm to facilitate the installation of the roller 4.

[0048] The roller 4 is made of a rolling bearing made of high-carbon bearing steel and is installed on the transverse plate 3 .

[0049] The working principle of the utility model is as follows: first, the U-shaped slot 10 of the fixing component 1 is fixed to the stiffening cross plate at the bottom of the flange plate of the steel truss bridge, and is fixed and locked by tightening the first bolt 11; then, by tightening the second bolt 22, the slide plate 21 is raised and lowered in the slot column 20, driving the cross plate 3 to adjust the height to the bottom elevation position of the rainwater pipe hole; finally, a thrust is applied to both ends of the steel truss bridge, so that the rainwater pipe slides and moves under the auxiliary action of the device, which greatly improves the construction efficiency and saves manpower and material resources.

[0050] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0051] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should take the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. An auxiliary perforation device for rainwater pipes on flange plates of steel truss bridges, characterized in that: The utility model comprises a fixed component (1), a lifting component (2), a transverse plate (3) and a roller (4), wherein the lifting components (2) are vertically arranged on both sides of the top of the fixed component (1), the transverse plate (3) is horizontally arranged on the top of the lifting component (2), and the roller (4) is arranged on the top of the transverse plate (3).

2. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 1 is characterized in that: The fixing assembly (1) comprises a U-shaped slot (10) and a first bolt (11); a bolt hole is provided at the top of the U-shaped slot (10); and the first bolt (11) fixes the U-shaped slot (10) to the flange plate of the steel truss bridge through the bolt hole.

3. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 2 is characterized in that: The first bolt (11) is located inside the lifting assembly (2).

4. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 1 is characterized in that: The lifting assembly (2) comprises a slot column (20), a slide plate (21), a baffle plate (24) and a second bolt (22); the slot column (20) is arranged on both sides of the top of the U-shaped slot (10); a slide plate (21) is arranged inside the slot column (20); a baffle plate (24) is horizontally arranged on the outer side of the top of the slide plate (21); and a second bolt (22) is vertically arranged at the bottom of the baffle plate (24).

5. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 4 is characterized in that: The inner wall profile of the slot column (20) and the outer wall profile of the slide plate (21) are both C-shaped.

6. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 4 is characterized in that: The second bolt (22) can drive the slide plate (21) to move up and down.

7. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 4 is characterized in that: A nut (23) is sleeved on the outer side of the second bolt (22).

8. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 1 is characterized in that: The roller (4) is half-embedded on the transverse plate (3).

9. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 8 is characterized in that: There are a plurality of rollers (4).

10. The auxiliary perforation device for rainwater pipes of flange plates of steel truss bridges according to claim 8, characterized in that: The roller (4) is closely attached to the outer wall of the rainwater pipe under the action of the lifting assembly (2).