Bridge pier column formwork nursing and rust removing device and rust removing construction method thereof

Abstract

The invention relates to the technical field of formwork rust removal devices, in particular to a bridge pier column formwork care rust removal device and a rust removal construction method.The bridge pier column formwork care rust removal device comprises a grinding body and a driving shaft, a main body grinding rod is arranged on the driving shaft, and mounting grinding rods are arranged on the two sides of the main body grinding rod correspondingly; according to the bridge pier column formwork nursing and rust removing device and the rust removing construction method thereof, when an operator conducts rust removing work on a formwork, the adjustable connecting assemblies are used for adjusting the main body grinding rod and the mounting grinding rods, and the rust removing efficiency is improved; the main body grinding rod is arranged to be attached to a vibrating hole, a pouring hole or an anchoring hole for a creeping formwork and other hole structures, the hole wall and the formwork connecting face can be ground at the same time by adjusting the angle between the mounting grinding rod and the main body grinding rod, and the grinding efficiency of the formwork can be improved.

Description

Technical Field

[0001] This invention relates to the field of rust removal equipment for templates, specifically to a rust removal device for bridge pier and column templates and its rust removal construction method. Background Technology

[0002] Bridge pier formwork is a temporary support structure used for pouring concrete bridge piers. It ensures that the concrete maintains its designed shape and dimensions before solidification. The formwork must possess high strength, rigidity, and stability to withstand the lateral pressure of the concrete and construction loads. Steel formwork exposed for long periods is prone to rust (especially at welds), requiring regular treatment to ensure the smoothness of the concrete surface. When localized rust appears on the formwork, in complex areas, or when on-site treatment is needed, a grinder is used to remove the rust, such as the multi-functional handheld grinder with announcement number CN115070575B. The device includes a grinding machine body, which includes a handheld part and a grinding part. The grinding part includes a first cylinder, a second cylinder disposed inside the first cylinder, and a third cylinder disposed inside the second cylinder. The grinding part is also provided with a locking component a and a locking component b. During the forward or reverse rotation of the second cylinder, the grinding disc is limited, fixed, or disassembled by the locking component a. After the grinding head is pulled out, the grinding head is limited and fixed by rotating the second cylinder under the action of the locking component b, so as to prevent the grinding disc from separating during operation and to easily remove and install the grinding disc from the grinding machine.

[0003] However, in actual use, we found that when removing rust from the template, there are some holes, such as vibration holes, pouring holes, or anchoring holes for climbing formwork. It is inconvenient to use the above-mentioned grinding machine for grinding, requiring workers to grind the holes from multiple angles. This not only reduces the grinding efficiency of the template, but may also lead to incomplete grinding due to the grinding head not fitting properly to the hole, which affects the grinding effect to some extent.

[0004] Therefore, we propose a rust removal device for bridge pier column formwork and its rust removal construction method. Summary of the Invention

[0005] One of the technical problems to be solved in this application is: how to design a rust removal device for bridge pier column formwork care and removal, and its rust removal construction method, which can grind the hole location. To address the aforementioned technical problems, this application provides a rust removal device for bridge pier column formwork care and a rust removal construction method thereof, comprising a grinding body and a drive shaft. A main grinding rod is mounted on the drive shaft, and mounting grinding rods are respectively mounted on both sides of the main grinding rod. Adjustable connecting components are provided between the main grinding rod, the mounting grinding rods, and between adjacent mounting grinding rods.

[0006] In some embodiments, sandpaper clips are provided at both ends of the main grinding rod and the mounting grinding rod near the drive shaft, and sandpaper is provided between the sandpaper clips, with the sandpaper adhering to the side of the main grinding rod and the mounting grinding rod away from the drive shaft.

[0007] In some embodiments, the adjustable connection assembly includes two rotating shafts rotatably disposed at both ends of the main grinding rod. Each rotating shaft is provided with a receiving plate and a rotating component. Each receiving plate is provided with a positioning component. Both ends of the side on which the grinding rod is mounted are provided with retractable components that cooperate with the positioning components.

[0008] In some embodiments, the rotating component includes a rotating protrusion disposed on a rotating shaft, a fastening bolt being movably disposed on the rotating protrusion, and a plurality of threaded holes being provided on the main grinding rod.

[0009] In some embodiments, the positioning element includes a mounting cavity disposed on a receiving plate, a plurality of elastic clamping rods are disposed in the mounting cavity, the ends of the elastic clamping rods are all arc-shaped, an internal thread is provided in the mounting cavity, and a pressing screw is threaded onto the internal thread, the pressing screw being arc-shaped on the side near the elastic clamping rod.

[0010] In some embodiments, the shrinking member includes a compression spring disposed on a mounting grinding rod, the end of the compression spring is provided with a displacement post, the mounting grinding rod is provided with a displacement arc groove for sliding of the displacement post, and the middle part of the compression swivel block is a hollow structure.

[0011] In some embodiments, a rotating seat is provided on the drive shaft, and two connecting rods are provided on the rotating seat. Both the rotating seat and the connecting rods are provided with through holes, and an adjusting bolt is movably disposed in the through holes. The end of the adjusting bolt is tightened by a nut. A sliding frame is provided on the connecting rod, and the main grinding rod is T-shaped and slidably disposed in the sliding frame. Mounting bolts are provided on the sliding frame.

[0012] In some embodiments, rectangular limiting frames are provided on both sides of the main grinding rod, and multiple U-shaped limiting frames are provided on the side of the rectangular limiting frame away from the main grinding rod.

[0013] In some embodiments, both the rectangular limiting frame and the U-shaped limiting frame are provided with limiting protrusions, and both the rectangular limiting frame and the U-shaped limiting frame are provided with permanent magnet blocks.

[0014] A rust removal construction method for a bridge pier column formwork care and rust removal device, the steps of which are as follows: S1. Loosen the adjusting bolts and nuts to make the connecting rod angle appropriate, then tighten the adjusting bolts and nuts. Loosen the mounting bolts to make the main grinding rod position appropriate, then tighten the mounting bolts. S2. Depending on the grinding location, install and adjust the position of the grinding rod using the adjustable connection assembly; S3. Start the grinding body to drive the drive shaft and its structure to begin grinding.

[0015] The present invention has at least the following beneficial effects: 1. When operators are removing rust from the template, they can use the adjustable connecting components to adjust the main grinding rod and the mounting grinding rod so that they fit into the vibrating holes, pouring holes or anchoring holes for climbing formwork, which helps to improve the grinding quality of the template at that location and makes the grinding more thorough. 2. By adjusting the angle between the mounting grinding rod and the main grinding rod, the hole wall and the template connection surface can be ground simultaneously, which helps to improve the grinding efficiency of the template. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Another structural diagram; Figure 3 This is a schematic diagram of the main grinding rod and the structure for mounting the grinding rod of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the planar structure; Figure 5 For the present invention Figure 3 Schematic diagram of partial cross-section; Figure 6 This is a schematic diagram of a single main grinding rod and the structure for mounting the grinding rod according to the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram of area A in the middle; Figure 8 This is an exploded view of a partially cutaway structure of the adjustable connection component of the present invention. Figure 9 For the present invention Figure 8 Enlarged structural diagram of area B in the middle; Figure 10 This is a partial cross-sectional view of the adjustable connection component of the present invention; Figure 11 For the present invention Figure 10 Schematic diagram of partial structural explosion; Figure 12 For the present invention Figure 5 A schematic diagram of the structure from another angle.

[0017] In the diagram: 1. Grinding body; 2. Drive shaft; 3. Main grinding rod; 4. Mounting grinding rod; 5. Adjustable connecting assembly; 51. Rotating shaft; 52. Receiving plate; 6. Rotating component; 61. Rotating convex rod; 62. Fastening bolt; 7. Positioning component; 71. Mounting cavity; 72. Elastic clamping rod; 73. Internal thread; 74. Extrusion swivel block; 8. Shrinking component; 81. Extrusion spring; 82. Displacement column; 9. Sandpaper clamp; 10. Grinding sandpaper; 11. Rotating seat; 12. Connecting rod; 13. Adjusting bolt; 14. Sliding frame; 15. Mounting bolt; 16. Rectangular limit frame; 17. U-shaped limit frame; 18. Limiting convex plate; 19. Permanent magnet block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 Please see Figures 1-12 The present invention provides a technical solution: A rust removal and maintenance device for bridge pier column templates includes a grinding body 1 and a drive shaft 2. A main grinding rod 3 is provided on the drive shaft 2. Mounting grinding rods 4 are respectively provided on both sides of the main grinding rod 3. Adjustable connecting components 5 are provided between the main grinding rod 3, the mounting grinding rods 4, and between two adjacent mounting grinding rods 4. Both the grinding body 1 and the drive shaft 2 are common existing structures. Pressing the switch on the grinding body 1 can control the operation of the drive component inside the grinding body 1. The drive component drives the drive shaft 2 to rotate, thereby driving the rotation of the main grinding rod 3 and the mounting grinding rod 4. In this design, adjustable connecting components 5 are provided between the main grinding rod 3, the mounting grinding rod 4, and between two adjacent mounting grinding rods 4. The installation between the main grinding rod 3 and the mounting grinding rod 4, or between two adjacent mounting grinding rods 4, can be achieved through the adjustable connecting components 5. For ease of description, the adjustable connecting component 5 located between the main grinding rod 3 and the mounting grinding rod 4 will be shown below. The structure between two adjacent mounting grinding rods 4 is the same, only the position is different, so it will not be described in detail. According to the usage requirements, the grinding rod 4 is connected and installed on the main grinding rod 3 through the adjustable connecting component 5, and the angle of the installed grinding rod 4 is adjusted. The main grinding rod 3 and the installation are placed in the hole to be ground. Then, pressing the switch on the grinding body 1 can control the drive component inside the grinding body 1 to work. The drive component drives the drive shaft 2 to rotate, thereby driving the rotation of the main grinding rod 3 and the installed grinding rod 4 and starting the grinding.

[0020] In addition, to facilitate the cleaning of concrete impurities or scrap iron filings in the holes, a cleaning rod can be added to the main grinding rod 3 or the end mounting grinding rod 4 through the adjustable connecting component 5 to achieve the cleaning of impurities and scrap iron filings. Since the structure of the adjustable connecting component 5 is the same as that of the adjustable connecting component 5 above, only the position is different, so it will not be described in detail. Meanwhile, in order to improve the fit between the main grinding rod 3 and the hole wall and between the mounting grinding rod 4 and the hole wall during use, two main grinding rods 3 are provided. The two are in the same plane and are mirror images of the axis of the drive shaft 2. The same structure is also provided on them.

[0021] Both ends of the main grinding rod 3 and the mounting grinding rod 4 near the drive shaft 2 are provided with sandpaper clips 9, and sandpaper 10 is provided between the sandpaper clips 9. The sandpaper 10 is attached to the side of the main grinding rod 3 and the mounting grinding rod 4 away from the drive shaft 2. The sandpaper 10 can be selected from 40 grit to 150 grit depending on the usage requirements, but there is no limitation. When sandpaper 10 is needed, simply press one side of the sandpaper clip 9 to clamp one side of the sandpaper 10, and pass the sandpaper 10 through the main grinding rod 3 or the side of the mounting grinding rod 4 away from the drive shaft 2. Then press the other side of the sandpaper clip 9 to clamp the other side of the sandpaper 10. The installation of sandpaper 10 can be completed. The disassembly process is the reverse. The adjustable connection assembly 5 includes two rotating shafts 51 rotatably disposed at both ends of the main grinding rod 3. Each rotating shaft 51 is provided with a receiving plate 52, a rotating component 6 is provided on each rotating shaft 51, and a positioning component 7 is provided on each receiving plate 52. Both ends of the side where the grinding rod 4 is mounted are provided with shrinking components 8 that cooperate with the positioning components 7. The rotating component 6 includes a rotating protrusion 61 disposed on the rotating shaft 51, and a fastening bolt 62 is movably disposed on the rotating protrusion 61. The main grinding rod 3 has multiple threaded holes. A handle is provided at the end of the rotating shaft 51, which can drive the rotating shaft 51 to rotate. The end of the rotating protrusion 61 has a through hole for the fastening bolt 62 to pass through. When in use, align the through hole and the threaded hole, then insert the fastening bolt 62 and tighten it. Generally, the position of the rotating protrusion 61 is vertical or horizontal. At this time, the positions of the receiving plate 52 and the mounting grinding rod 4 are horizontal or vertical. The position of the threaded hole is also opened according to this usage requirement. The positioning component 7 includes a mounting cavity 71 disposed on the receiving plate 52. The mounting cavity 71 is provided with a plurality of elastic clamping rods 72. The ends of the elastic clamping rods 72 are all arc-shaped. The mounting cavity 71 is provided with an internal thread 73. A pressing screw block 74 is threadedly connected to the internal thread 73. The pressing screw block 74 is arc-shaped on the side near the elastic clamping rod 72. The mounting cavity 71 and the receiving plate 52 are fixedly connected. When the receiving plate 52 rotates, it can drive the mounting cavity 71 to rotate. The mounting cavity 71 is provided with a fixing ring for installing the elastic clamping rod 72. The fixing ring prevents the multiple clamping rods from rotating in the mounting cavity 71. The pressing block 74 is provided with a knob on the side away from the elastic clamping rod 72. By rotating the knob, the pressing block 74 can be driven to rotate, thereby making the pressing block 74 and the elastic clamping rod 72 fit together. The arc structure on the pressing block 74 can be used to press and position the arc structure on the elastic clamping rod 72. That is, the elastic clamping rod 72 is used to lock the shrinking part 8 on the mounting grinding rod 4. The shrinking component 8 includes a compression spring 81 mounted on the mounting grinding rod 4. The end of the compression spring 81 is provided with a displacement post 82. The mounting grinding rod 4 has a displacement arc groove for sliding of the displacement post 82. The middle part of the compression rotating block 74 is a hollow structure. The shifting column 82 is provided with a protrusion, and the mounting grinding rod 4 is provided with a groove. The protrusion and groove can prevent relative rotation between the shifting column 82 and the mounting grinding rod 4. Both the shifting column 82 and the mounting cavity 71 are chamfered to facilitate the insertion of the shifting column 82 into the mounting cavity 71. The elastic clamping rod 72 cooperates with the shifting column 82 and achieves locking and positioning of the mounting block by squeezing the shifting column 82. The purpose of designing the middle part of the extrusion swivel block 74 as a hollow structure is to add an observation window. Through the observation window, the position of the displacement column 82 and its clamping status can be observed, thus preventing the displacement column 82 from becoming loose.

[0022] In use, according to the usage requirements, the grinding rod 4 is connected and installed on the main grinding rod 3 via the adjustable connecting assembly 5. Specifically: Pressing the displacement column 82 causes it to slide within the mounting grinding rod 4, compressing the compression spring 81 and allowing the displacement column 82 to smoothly enter the mounting cavity 71. The compression spring 81 then drives the displacement rod to reset, and a clicking sound is heard, indicating that the displacement rod has reset and is located inside the mounting cavity 71. The displacement column 82 can also be observed through the observation window. Once confirmed, turning the knob will rotate the compression block 74, causing the compression block 74 and the elastic clamping rod 72 to come into contact. The arc-shaped structure on the compression block 74 compresses and positions the arc-shaped structure on the elastic clamping rod 72, thus locking the displacement column 82 and the mounting grinding rod 4 together. Secondly, a handle is provided at the end of the rotating shaft 51, which can drive the rotating shaft 51 to rotate. The end of the rotating protrusion 61 is provided with a through hole for the fastening bolt 62 to pass through. When using it, align the through hole and the threaded hole, then insert the fastening bolt 62 and tighten it. Adjust the angle of the mounting grinding rod 4, and place the main grinding rod 3 and the mounting rod into the hole to be ground. Then, pressing the switch on the grinding body 1 controls the operation of the drive component inside the grinding body 1. The drive component drives the drive shaft 2 to rotate, thereby driving the rotation of the main grinding rod 3 and the mounting grinding rod 4 and starting the grinding. Because there are relatively many vibration holes, pouring holes, or anchoring holes for climbing formwork, for example, vibration holes are set in a layer every 1.5~2m along the height of the pier in the vertical direction, and are symmetrically arranged in the horizontal direction with a spacing of 1~1.5m, so multiple hole types can be ground by one adjustment and then adjusted again.

[0023] Example 2 Please see Figures 3-5 The present invention provides a technical solution: A rust removal and maintenance device for bridge pier column formwork includes a rotating seat 11 on a drive shaft 2, two connecting rods 12 on the rotating seat 11, and through holes on both the rotating seat 11 and the connecting rods 12. An adjusting bolt 13 is movably installed in the through hole, and the end of the adjusting bolt 13 is tightened by a nut. A sliding frame 14 is provided on the connecting rod 12. The main grinding rod 3 is T-shaped and slidably installed in the sliding frame 14. Mounting bolts 15 are provided on the sliding frame 14. The rotating seat 11 can be pressed by adjusting the nut and adjusting bolt 13, thereby locking and positioning the connecting rod 12. To improve the fixing effect, a self-locking bolt or a double nut structure can be used without limitation. When in use, pull the main grinding rod 3 to slide it in the sliding frame 14. After reaching the appropriate position, tighten the mounting bolt 15. A rust removal construction method for a bridge pier column formwork care and rust removal device, the steps of which are as follows: S1. Loosen the adjusting bolt 13 and nut to make the angle of the connecting rod 12 appropriate, then tighten the adjusting bolt 13 and nut. Loosen the mounting bolt 15 to make the position of the main grinding rod 3 appropriate, then tighten the mounting bolt 15. S2. Depending on the grinding position, install and adjust the position of the mounting rod 4 using the adjustable connection component 5; S3. Start the grinding body 1 to drive the drive shaft 2 and its structure to begin grinding.

[0024] Example 3 Please see Figure 5 and Figure 12 The present invention provides a technical solution: A rust removal and maintenance device for bridge pier column templates, wherein rectangular limiting frames 16 are provided on both sides of the main grinding rod 3, and multiple U-shaped limiting frames 17 are provided on the side of the rectangular limiting frame 16 away from the main grinding rod 3; The rectangular limiting frame 16 and the U-shaped limiting frame 17 can limit the installation of the grinding rod 4 and prevent the grinding rod 4 from rotating excessively. Since the grinding rod 4 can be added as needed, the U-shaped limiting frame 17 is designed so that the limiting structure can also be added as needed. In addition, to ensure structural strength, reinforcing ribs were added to both the rectangular limiting frame 16 and the U-shaped limiting frame 17.

[0025] Example 4 Please see Figure 5 and Figure 12 The present invention provides a technical solution: A rust removal and maintenance device for bridge pier column formwork, wherein both the rectangular limiting frame 16 and the U-shaped limiting frame 17 are provided with limiting protrusions 18, and both the rectangular limiting frame 16 and the U-shaped limiting frame 17 are provided with permanent magnet blocks 19. The design of the limiting protrusion 18 makes the rectangular limiting frame 16 and the U-shaped limiting frame 17 form a box structure without a cover plate on top. In this way, some of the debris that splashes during grinding can fall into the corresponding box structure. Of course, there is a possibility of detachment during rotation. Therefore, a permanent magnet block 19 is added to adsorb and position the scrap iron filings. In addition, after polishing, the scrap iron on the permanent magnet block 19 can be separated by a demagnetizer.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A pier column formwork rust removal device comprising a polishing body (1) and a driving shaft (2), characterized in that: The drive shaft (2) is provided with a main grinding rod (3), and mounting grinding rods (4) are provided on both sides of the main grinding rod (3). Adjustable connecting components (5) are provided between the main grinding rod (3), the mounting grinding rods (4), and two adjacent mounting grinding rods (4).

2. The pier column formwork care rust removal device according to claim 1, characterized by: Both ends of the main grinding rod (3) and the mounting grinding rod (4) near the drive shaft (2) are provided with sandpaper clips (9), and sandpaper (10) is provided between the sandpaper clips (9). The sandpaper (10) is attached to the side of the main grinding rod (3) and the mounting grinding rod (4) away from the drive shaft (2).

3. The pier column formwork care rust removal device according to claim 2, characterized by: The adjustable connection assembly (5) includes two rotating shafts (51) rotatably disposed at both ends of the main grinding rod (3). Each rotating shaft (51) is provided with a receiving plate (52), each rotating shaft (51) is provided with a rotating component (6), each receiving plate (52) is provided with a positioning component (7), and each end of the side of the grinding rod (4) is provided with a shrinking component (8) that cooperates with the positioning component (7).

4. The bridge pier and column formwork care and rust removal device according to claim 3, characterized in that: The rotating component (6) includes a rotating protrusion (61) mounted on a rotating shaft (51), a fastening bolt (62) is movably mounted on the rotating protrusion (61), and multiple threaded holes are provided on the main grinding rod (3).

5. The bridge pier and column formwork care and rust removal device according to claim 3, characterized in that: The positioning component (7) includes a mounting cavity (71) provided on the receiving plate (52). Multiple elastic clamping rods (72) are provided in the mounting cavity (71). The ends of the elastic clamping rods (72) are all arc-shaped. An internal thread (73) is provided in the mounting cavity (71). A pressing screw (74) is threaded onto the internal thread (73). The pressing screw (74) is arc-shaped on the side near the elastic clamping rod (72).

6. The bridge pier and column formwork care and rust removal device according to claim 3, characterized in that: The shrinking component (8) includes a compression spring (81) mounted on the mounting grinding rod (4), and a displacement post (82) is provided at the end of the compression spring (81). The mounting grinding rod (4) has a displacement arc groove for sliding of the displacement post (82), and the middle part of the compression swivel block (74) is hollow.

7. The bridge pier and column formwork care and rust removal device according to claim 1, characterized in that: The drive shaft (2) is provided with a rotating seat (11), and the rotating seat (11) is provided with two connecting rods (12). Both the rotating seat (11) and the connecting rods (12) are provided with through holes, and an adjusting bolt (13) is movably installed in the through holes. The end of the adjusting bolt (13) is tightened by a nut. The connecting rod (12) is provided with a sliding frame (14). The main grinding rod (3) is T-shaped and is slidably installed in the sliding frame (14). The sliding frame (14) is provided with mounting bolts (15).

8. The bridge pier and column formwork care and rust removal device according to claim 1, characterized in that: A rectangular limiting frame (16) is provided on both sides of the main grinding rod (3), and a plurality of U-shaped limiting frames (17) are provided on the side of the rectangular limiting frame (16) away from the main grinding rod (3).

9. The bridge pier and column formwork care and rust removal device according to claim 8, characterized in that: Both the rectangular limiting frame (16) and the U-shaped limiting frame (17) are provided with limiting protrusions (18), and both the rectangular limiting frame (16) and the U-shaped limiting frame (17) are provided with permanent magnet blocks (19).

10. A rust removal construction method for the rust removal device for bridge pier column formwork care according to any one of claims 1-9, comprising the following steps: S1. Loosen the adjusting bolt (13) and nut to make the angle of the connecting rod (12) suitable, then tighten the adjusting bolt (13) and nut. Loosen the mounting bolt (15) to make the position of the main grinding rod (3) suitable, then tighten the mounting bolt (15). S2. Depending on the grinding position, install and adjust the position of the mounting rod (4) using the adjustable connection assembly (5); S3. Start the grinding body (1) to drive the drive shaft (2) and its structure to start grinding.

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