Pier formwork anti-rot device

Abstract

This utility model discloses a device for preventing root rot in pier formwork, comprising a pier formwork body, a formwork panel fixed to the outside of the formwork body, and a formwork bottom flange fixed to the bottom of the formwork panel. An auxiliary pad is provided on the surface of the formwork bottom flange, and a second fixing nut is provided on the surface of the auxiliary pad. A compression bolt is provided inside the second fixing nut. An anti-root rot sealing structure is provided at the bottom end of the pier formwork body, comprising a sealing steel channel and a sponge strip. The bottom end of the compression bolt extends to the top of the sealing steel channel and is fitted with a compression steel washer. An elevation adjustment mechanism is provided on one side of the pier formwork body. This utility model not only completely seals the bottom of the formwork, has a simple structure, is easy to operate, and is reusable, but also allows for elevation adjustment.

Description

Technical Field

[0001] This utility model relates to the field of railway bridge pier construction technology, specifically to a device for preventing root rot in pier formwork. Background Technology

[0002] During the construction of railway piers, because it is not easy to seal the bottom of the pier formwork, concrete slurry often flows out from the bottom of the formwork during the pier pouring, causing the concrete stones at the bottom of the pier to be exposed, which is called "rotten root".

[0003] Currently, most methods to prevent "rotten roots" in pier construction involve sealing with foam adhesive or cement mortar before pouring. However, using foam adhesive can cause it to embed into the pier body or fail to seal properly due to insufficient strength, leading to rotten roots. Similarly, using cement mortar can also cause the mortar to embed into the pier body, only addressing the appearance of "rotten roots" but creating quality problems at the bottom of the pier. Therefore, we propose a device to prevent rotten roots in pier formwork. Utility Model Content

[0004] The purpose of this utility model is to provide a device for preventing root rot in pier formwork, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pier formwork anti-rotten root device, comprising a pier formwork body, a formwork panel fixed to the outside of the pier formwork body, and a formwork bottom flange fixed to the bottom of the formwork panel. A first through hole is provided inside the formwork bottom flange, an auxiliary pad is provided on the surface of the formwork bottom flange, and a second fixing nut is provided on the surface of the auxiliary pad. A compression bolt is provided inside the second fixing nut, and an anti-rotten root sealing structure is provided at the bottom end of the pier formwork body. The sealing structure includes a sealing steel channel and a sponge strip. The sealing steel channel is welded and fixed to the bottom end of the template bottom flange. A second through hole is provided at the top of the sealing steel channel, which corresponds to the first through hole. The sponge strip is placed inside the sealing steel channel. The bottom end of the extrusion bolt extends to the top of the sealing steel channel and is fitted with an extrusion steel gasket. The extrusion steel gasket is tightly fitted with the sponge strip. An elevation adjustment mechanism is provided on one side of the pier template body. The elevation adjustment mechanism includes a double row of channel steel back ribs, a first fixing nut, a height adjustment bolt, and a pressure-bearing steel pad.

[0006] Preferably, the extrusion bolt passes through the first through hole and the second through hole in sequence and is connected to the extrusion steel gasket.

[0007] Preferably, the thickness of the sponge strip is greater than the height of the sealing steel channel, and the sponge strip is a hydrophobic sponge, which creates a compression effect and provides good waterproofing.

[0008] Preferably, one end of the sponge strip is provided with a connecting protrusion, and the other end of the sponge strip is provided with a connecting groove. The connecting groove matches the connecting protrusion, and the overlap of the connecting protrusion and the connecting groove can improve the sealing between the sponge strips and enhance the overall sealing performance.

[0009] Preferably, the second fixing nut and the auxiliary pad are fixed at the first through hole by welding.

[0010] Preferably, the double-row channel steel back ribs are fixed on one side of the pier body template, and the first fixing nut is located inside the double-row channel steel back ribs.

[0011] Preferably, the pressure-bearing steel pad is positioned below the double-row channel steel back rib, and the height adjustment bolt passes through the double-row channel steel back rib and the first fixing nut and is fixed to the pressure-bearing steel pad.

[0012] Preferably, the side of the sealing steel channel is flush with the template panel and there is no misalignment.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] First, the sponge strips are placed in the sealing steel channel. The sponge strips are placed in a combined manner, with the connecting protrusion at one end of the sponge strip engaging with the connecting groove at the end of the adjacent sponge strip. The overlap of the connecting protrusion and the connecting groove can improve the sealing between the sponge strips and enhance the overall sealing performance. By rotating the extrusion bolt, the extrusion steel pad is driven to move downward. The extrusion steel pad extrudes the sponge strip, increasing its density and forming a sealing concrete slurry. The sponge strip is a water-repellent sponge, which can completely seal the bottom of the template after being deformed under pressure. This anti-rotting root device for pier body has a simple structure, is easy to operate, and can be reused.

[0015] Because one side of the pier formwork body is equipped with an elevation adjustment mechanism, which consists of double-row channel steel back ribs, a first fixing nut, a height adjustment bolt and a pressure-bearing steel pad, the elevation adjustment is achieved by rotating the height adjustment bolt to drive the pier formwork body to rise and fall. Attached Figure Description

[0016] Figure 1 This is a side view of the structure of this utility model;

[0017] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0018] Figure 3 This is an enlarged structural diagram of the root-blocking structure of this utility model;

[0019] Figure 4 This is a side view of the sponge strip structure of this utility model;

[0020] Figure 5 This is a front view structural diagram of the present invention.

[0021] In the diagram: 1. Pier formwork body; 2. Elevation adjustment mechanism; 3. Anti-rot root sealing structure; 4. Double-row channel steel back rib; 5. First fixing nut; 6. Height adjusting bolt; 7. Pressure bearing steel pad; 8. Formwork panel; 9. Formwork bottom flange; 10. Auxiliary pad; 11. Extrusion bolt; 12. Second fixing nut; 13. Extrusion steel gasket; 14. First through hole; 15. Second through hole; 16. Sealing steel channel; 17. Sponge strip; 18. Connecting protrusion; 19. Connecting groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-5 An embodiment of this utility model provides a pier formwork anti-rot device, including a pier formwork body 1, a formwork panel 8 fixed to the outside of the pier formwork body 1, and a formwork bottom flange 9 fixed to the bottom of the formwork panel 8. A first through hole 14 is provided inside the formwork bottom flange 9, an auxiliary pad 10 is provided on the surface of the formwork bottom flange 9, and a second fixing nut 12 is provided on the surface of the auxiliary pad 10. A compression bolt 11 is provided inside the second fixing nut 12.

[0025] The bottom end of the pier formwork body 1 is provided with an anti-rotten root sealing structure 3. The anti-rotten root sealing structure 3 includes a sealing steel channel 16 and a sponge strip 17. The sealing steel channel 16 is welded and fixed to the bottom end of the formwork bottom flange 9. The top of the sealing steel channel 16 is provided with a second through hole 15, which corresponds to the first through hole 14. The sponge strip 17 is placed inside the sealing steel channel 16. The bottom end of the extrusion bolt 11 extends to the top of the sealing steel channel 16 and is equipped with an extrusion steel gasket 13. The extrusion steel gasket 13 is tightly fitted with the sponge strip 17.

[0026] Specifically, the anti-rotten root sealing structure 3 is located at the bottom end of the pier body template 1. The anti-rotten root sealing structure 3 consists of a sealing steel channel 16 and a sponge strip 17. The workers first put the sponge strip 17 into the sealing steel channel 16.

[0027] Then, by rotating the extrusion bolt 11, it drives the extrusion steel shim 13 to move down. The extrusion steel shim 13 extrudes the sponge strip 17 to increase its density, thus forming a sealing effect on the concrete slurry. The sponge strip 17 is a hydrophobic sponge. After being deformed under pressure, it can completely seal the bottom of the template. This anti-rotten root device for the pier body has a simple structure, is easy to operate, and can be reused.

[0028] A height adjustment mechanism 2 is provided on one side of the pier formwork body 1. The height adjustment mechanism 2 includes a double row of channel steel back ribs 4, a first fixing nut 5, a height adjustment bolt 6, and a pressure-bearing steel pad 7.

[0029] The extrusion bolt 11 passes through the first through hole 14 and the second through hole 15 in sequence and is connected to the extrusion steel gasket 13;

[0030] The thickness of the sponge strip 17 is greater than the height of the sealing steel channel 16, and the sponge strip 17 is a water-repellent sponge;

[0031] One end of the sponge strip 17 is provided with a connecting protrusion 18, and the other end of the sponge strip 17 is provided with a connecting groove 19, which matches the connecting protrusion 18.

[0032] Furthermore, the sponge strips 17 are arranged in a combined manner. The connecting protrusion 18 at one end of the sponge strip 17 is engaged with the connecting groove 19 at one end of the adjacent sponge strip 17. The overlap of the connecting protrusion 18 and the connecting groove 19 can improve the sealing between the sponge strips 17 and enhance the overall sealing performance.

[0033] The second fixing nut 12 and the auxiliary pad 10 are fixed together by welding at the first through hole 14;

[0034] The double-row channel steel back rib 4 is fixed on one side of the pier body template 1, and the first fixing nut 5 is set inside the double-row channel steel back rib 4.

[0035] The pressure-bearing steel pad 7 is set below the double-row channel steel back rib 4, and the height adjustment bolt 6 passes through the double-row channel steel back rib 4 and the first fixing nut 5 and is fixed to the pressure-bearing steel pad 7;

[0036] Specifically, the elevation is adjusted by rotating the height adjustment bolt 6 to drive the pier formwork body 1 to rise and fall.

[0037] The side of the sealing steel channel 16 is flush with the template panel 8 and there is no misalignment.

[0038] In this embodiment, the following steps are taken: First, an elevation adjustment mechanism 2 is provided on one side of the pier formwork body 1. The elevation adjustment mechanism 2 consists of a double-row channel steel back rib 4, a first fixing nut 5, a height adjustment bolt 6, and a pressure-bearing steel pad 7. The elevation is adjusted by rotating the height adjustment bolt 6 to drive the pier formwork body 1 to rise and fall. Then, the anti-rot root sealing structure 3 is located at the bottom of the pier formwork body 1. The anti-rot root sealing structure 3 consists of a sealing steel channel 16 and a sponge strip 17. The operator first places the sponge strip 17 into the sealing steel channel 16. The sponge strip 17 is placed in a combined manner. The connecting protrusion 18 at one end of the sponge strip 17 is engaged with the connecting groove 19 at the adjacent end of the sponge strip 17. The overlap of the connecting protrusion 18 and the connecting groove 19 can improve the sealing between the sponge strips 17 and enhance the overall sealing performance. Then, by rotating the compression bolt 11, it drives the compression steel pad 13 to move down. The compression steel pad 13 compresses the sponge strip 17 to increase its density, forming a sealing concrete slurry. The sponge strip 17 is a water-repellent sponge. After being deformed under pressure, it can completely seal the bottom of the template. This anti-rot root device for the pier body has a simple structure, is easy to operate, and can be reused.

[0039] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A device for preventing root rot of a pier body formwork, comprising a pier body formwork body (1), characterized in that, The pier body template body (1) is externally fixed with a template panel (8), and a template bottom flange (9) is fixed at the bottom of the template panel (8). The template bottom flange (9) has a first through hole (14) inside. An auxiliary pad (10) is provided on the surface of the template bottom flange (9), and a second fixing nut (12) is provided on the surface of the auxiliary pad (10). A compression bolt (11) is provided inside the second fixing nut (12). The bottom end of the pier body template body (1) is provided with an anti-rotten root sealing structure (3). The anti-rotten root sealing structure (3) includes a sealing steel channel (16) and a sponge strip (17). The sealing steel channel (16) is welded. The bottom of the template bottom flange (9) is fixed, and the top of the sealing steel channel (16) is provided with a second through hole (15), which corresponds to the first through hole (14). The sponge strip (17) is set inside the sealing steel channel (16). The bottom end of the extrusion bolt (11) extends to the top of the sealing steel channel (16) and is equipped with an extrusion steel gasket (13). The extrusion steel gasket (13) is tightly fitted with the sponge strip (17). The elevation adjustment mechanism (2) is provided on one side of the pier template body (1). The elevation adjustment mechanism (2) includes a double-row channel steel back rib (4), a first fixing nut (5), a height adjustment bolt (6), and a pressure-bearing steel pad (7).

2. The dowel form tie back device of claim 1, wherein: The extrusion bolt (11) passes through the first through hole (14) and the second through hole (15) in sequence and is connected to the extrusion steel gasket (13).

3. The dowel form tie backout device of claim 1, wherein: The thickness of the sponge strip (17) is greater than the height of the sealing steel channel (16), and the sponge strip (17) is a hydrophobic sponge.

4. The dowel form tie backout device of claim 1, wherein: One end of the sponge strip (17) is provided with a connecting protrusion (18), and the other end of the sponge strip (17) is provided with a connecting groove (19), the connecting groove (19) matching the connecting protrusion (18).

5. The dowel form tie backout device of claim 1, wherein: The second fixing nut (12) and the auxiliary pad (10) are fixed at the first through hole (14) by welding.

6. The anti-rotten root device for pier formwork according to claim 1, characterized in that: The double-row channel steel back rib (4) is fixed on one side of the pier body template body (1), and the first fixing nut (5) is set inside the double-row channel steel back rib (4).

7. The dowel form tie backout device of claim 1, wherein: The pressure-bearing steel pad (7) is located below the double-row channel steel back rib (4), and the height adjustment bolt (6) passes through the double-row channel steel back rib (4) and the first fixing nut (5) and is fixed to the pressure-bearing steel pad (7).

8. The dowel form tie backout device of claim 1, wherein: The side of the sealing steel channel (16) is flush with the template panel (8) and there is no misalignment.

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