Filling degree enhancing device

Abstract

The utility model discloses a filling degree enhancing device which comprises a slurry inlet end exhaust mechanism connected with a slurry inlet end anchor bearing plate at the slurry inlet end of a beam body and a slurry outlet end exhaust mechanism connected with a slurry outlet end anchor bearing plate at the slurry outlet end of the beam body. The exhaust structures are additionally arranged at the two ends of the beam body respectively, in this way, in the grouting process, whether air in the prestressed pipeline is completely exhausted or not can be visually judged by observing whether gas is exhausted from the exhaust mechanisms or not, and therefore it can be guaranteed that the prestressed pipeline is completely filled with cement-based grouting slurry; and the overall bearing capacity and the service life of the prestressed concrete structure bridge are greatly improved. The method is suitable for bridge construction.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a filling degree enhancing device. Background Art

[0002] Currently, damage to prestressed concrete bridges manifests in various forms, including loss of prestress, concrete damage and cracking, steel corrosion, and support voids. These damages can lead to a decrease in the overall stiffness and bearing capacity of prestressed concrete bridges and are a major cause of prestressed concrete bridge failures. Steel corrosion, in particular, is caused by a low degree of filling of the cement-based grouting material within the prestressed pipes (corrugated pipes) during construction.

[0003] Specifically, during the construction of prestressed concrete structure bridges, cement-based grouting slurry will be filled into the prestressed pipes (corrugated pipes) inside the beam body, so that the cement-based grouting slurry completely wraps the steel strands, thereby protecting the prestressed steel strands and enabling the prestressed steel strands to fully play their role, thereby improving the bearing capacity and service life of the prestressed concrete structure bridge.

[0004] However, during the actual construction process, since the prestressed pipe (corrugated pipe) in the beam body is curved and long, it is impossible to intuitively judge whether the air in the prestressed pipe is completely exhausted when filling the cement-based grouting slurry. In other words, whether the prestressed pipe is completely filled with cement-based grouting slurry. Once the cement-based grouting slurry in the prestressed pipe (corrugated pipe) is not full enough, after the cement-based grouting slurry solidifies, part of the prestressed steel strands in the prestressed pipe will be directly exposed to the air. Over time, the prestressed steel strands exposed to the air will gradually rust, thereby greatly reducing the overall bearing capacity and service life of the prestressed concrete structure bridge. Utility Model Content

[0005] The purpose of the present invention is to provide a device for enhancing fullness to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A filling degree enhancement device comprises a slurry inlet end exhaust mechanism connected to a slurry inlet end anchor plate at a slurry inlet end of a beam body, and a slurry outlet end exhaust mechanism connected to a slurry outlet end anchor plate at a slurry outlet end of the beam body.

[0008] In the above scheme, the exhaust mechanism at the slurry inlet end includes a slurry inlet end connecting pipe sealedly connected to the slurry inlet end anchor plate, the slurry inlet end of the slurry inlet end connecting pipe is connected to a first three-way pipe joint, the slurry inlet end of the first three-way pipe joint is provided with a slurry inlet valve, the exhaust end of the first three-way pipe joint is connected to a first ball valve, an exhaust pipe is inserted in the first ball valve, and the exhaust pipe passes through the first three-way pipe joint and the slurry inlet end anchor plate in sequence and extends to the prestressed pipe of the beam body.

[0009] In the above solution, the exhaust end of the exhaust pipe extends outwardly and is connected to an exhaust observation mechanism, and the exhaust observation mechanism includes a liquid storage tank with an exhaust port, and the liquid storage tank is connected to the exhaust end of the exhaust pipe.

[0010] In the above solution, the liquid storage tank is connected to the exhaust end of the exhaust pipe through the one-way valve.

[0011] In the above scheme, a second three-way pipe joint is provided between the one-way valve and the exhaust pipe, the air inlet end of the second three-way pipe joint is connected to the exhaust end of the exhaust pipe, the exhaust end of the second three-way pipe joint is connected to the one-way valve, and the insertion end of the second three-way pipe joint is connected to a third ball valve.

[0012] In the above solution, the insertion end of the third ball valve is provided with a slurry observation mechanism, which includes a detection head. The detection head is movably inserted into the third ball valve, and the detection head can be extended into the prestressed pipe of the beam body.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By adding exhaust structures at both ends of the beam, during the grouting process, by observing whether there is still gas discharged from the exhaust mechanism, it is possible to intuitively judge whether the air in the prestressed pipe is completely exhausted, thereby ensuring that the prestressed pipe is completely filled with cement-based grouting slurry, thereby greatly improving the overall bearing capacity and service life of the prestressed concrete structure bridge;

[0015] 2. When in use, grouting is carried out into the first three-way pipe joint through the grouting valve. The slurry will enter the prestressed pipe of the beam body along the gap between the grouting end connecting pipe and the exhaust pipe. During the grouting process, as the slurry in the prestressed pipe increases, the gas in the prestressed pipe will be discharged through the slurry storage pipe and the second ball valve. In this way, by observing whether there is still gas discharged from the second ball valve, it can be intuitively judged whether the air in the prestressed pipe is completely discharged, thereby ensuring that the prestressed pipe is completely filled with cement-based grouting slurry, thereby greatly improving the overall bearing capacity and service life of the prestressed concrete structure bridge;

[0016] 3. By adding a sealing ring at the position corresponding to the exhaust pipe in the first three-way pipe joint and arranging the sealing ring in the exhaust end of the first three-way pipe joint, the slurry can be prevented from flowing back to the first ball valve;

[0017] 4. By arranging the slurry storage pipe vertically and making the height of the second ball valve higher than the highest height of the prestressed pipe of the beam body, it can ensure that the air in the prestressed pipe can be completely discharged. By adding a slurry filter inside the upper end of the slurry storage pipe, the loss of slurry can be reduced during the exhaust process, thereby reducing waste and lowering costs.

[0018] 5. By adding an exhaust observation mechanism to the exhaust end of the exhaust pipe, it is possible to more intuitively observe whether there is gas discharged from the exhaust pipe. When using it, first fill the liquid storage tank with foam balls. In this way, during the exhaust process, by observing whether the foam balls jump, you can intuitively judge whether there is gas discharged from the exhaust pipe;

[0019] 6. By adding a second three-way pipe joint between the one-way valve and the exhaust pipe, and connecting the air inlet end of the second three-way pipe joint to the exhaust end of the exhaust pipe, and the exhaust end of the second three-way pipe joint to the one-way valve, and then adding a third ball valve to the insertion end of the second three-way pipe joint, a detection head can be inserted into the prestressed pipe through the third ball valve, the second three-way pipe joint and the exhaust pipe, providing conditions for more intuitive observation of the grouting process;

[0020] 7. The added slurry observation mechanism allows for more intuitive observation of the grouting process, further ensuring that the prestressed pipe is completely filled with cement-based grouting slurry, thereby significantly improving the overall bearing capacity and service life of the prestressed concrete structure bridge. When in use, first insert the probe into the prestressed pipe through the third ball valve, the second three-way pipe joint and the exhaust pipe. Then, as the slurry increases, slowly pull the probe back to observe the entire grouting process in real time.

[0021] 8. The additional sealing ring of the detection head can prevent the gas and slurry from leaking from the detection head, making it inconvenient to observe the discharge of gas and slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of a fullness enhancement device;

[0023] Figure 2 for Figure 1 Schematic diagram of a local enlarged structure;

[0024] Figure 3 for Figure 1 Another partially enlarged structural schematic diagram.

[0025] As shown in the figure: exhaust mechanism 1 at the slurry inlet end, connecting pipe 1a at the slurry inlet end, first three-way pipe joint 1b, slurry inlet valve 1c, first ball valve 1d, exhaust pipe 1e, sealing ring 1f, exhaust mechanism 2 at the slurry outlet end, slurry storage pipe 2a, second ball valve 2b, slurry filter 2c, exhaust observation mechanism 3, liquid storage tank 3a, one-way valve 3b, second three-way pipe joint 3c, third ball valve 3d, slurry observation mechanism 4, detection head 4a, detection head sealing ring 4b, beam body a, slurry inlet end anchor plate a1, slurry outlet end anchor plate a2, prestressed pipe a3. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 In an embodiment of the present invention, a device for enhancing the filling degree includes a grouting end exhaust mechanism 1 connected to an anchor plate a1 at the grouting end of beam body a, and a grouting end exhaust mechanism 2 connected to an anchor plate a2 at the grouting end of beam body a. By adding exhaust structures at both ends of beam body a, during the grouting process, by observing whether gas is still being discharged from the exhaust mechanism, it is possible to intuitively determine whether the air in the prestressed concrete pipe has been completely exhausted, thereby ensuring that the prestressed concrete pipe is completely filled with cement-based grouting material, thereby greatly improving the overall bearing capacity and service life of the prestressed concrete bridge structure.

[0028] The slurry inlet exhaust mechanism 1 includes a slurry inlet connecting pipe 1a sealed with the slurry inlet anchor plate a1. The inlet end of the slurry inlet connecting pipe 1a is connected to a first three-way pipe joint 1b. The inlet end of the first three-way pipe joint 1b is equipped with a slurry inlet valve 1c. The exhaust end of the first three-way pipe joint 1b is connected to a first ball valve 1d. The first ball valve 1d is inserted with an exhaust pipe 1e. The exhaust pipe 1e passes through the first three-way pipe joint 1b and the slurry inlet anchor plate a1 in sequence and extends into the prestressed pipe a3 of the beam body a. The exhaust pipe 1e is a flexible hose with a certain degree of rigidity, such as a hard polyethylene hose. The surface of the portion of the exhaust pipe 1e that extends into the beam body a is provided with a through hole to facilitate gas discharge. During use, grouting is carried out into the first three-way pipe joint 1b through the slurry inlet valve 1c, and the slurry will enter the prestressed pipe a3 of the beam body a along the gap between the slurry inlet end connecting pipe 1a and the exhaust pipe 1e. During the grouting process, as the slurry in the prestressed pipe a3 increases, the gas in the prestressed pipe a3 will be discharged through the exhaust pipe 1e. In this way, by observing whether there is still gas discharged from the exhaust pipe 1e, it is possible to intuitively judge whether the air in the prestressed pipe is completely discharged, thereby ensuring that the prestressed pipe is completely filled with cement-based grouting slurry, thereby greatly improving the overall bearing capacity and service life of the prestressed concrete structure bridge.

[0029] The outer diameter of the exhaust pipe 1e is smaller than the inner diameter of the first three-way pipe joint 1b, which is also smaller than the inner diameter of the slurry inlet connecting pipe 1a. A sealing ring 1f is provided in the first three-way pipe joint 1b at a position corresponding to the exhaust pipe 1e. The sealing ring is located within the exhaust end of the first three-way pipe joint 1b. By adding a sealing ring 1f to the first three-way pipe joint 1b at a position corresponding to the exhaust pipe 1e and arranging the sealing ring 1f within the exhaust end of the first three-way pipe joint 1b, the slurry can be ensured to flow smoothly into the prestressed pipe a3 while preventing the slurry from flowing back toward the first ball valve 1d. Furthermore, the device structure is made more compact.

[0030] The above-mentioned slurry outlet exhaust mechanism 2 includes a slurry storage pipe 2a and a second ball valve 2b. One end of the slurry storage pipe 2a is connected to the slurry outlet anchor plate a2, and the other end of the slurry storage pipe 2a is connected to the second ball valve 2b. When in use, grouting is carried out into the first three-way pipe joint 1b through the slurry inlet valve 1c. The slurry will enter the prestressed pipe a3 of the beam body a along the gap between the slurry inlet end connecting pipe 1a and the exhaust pipe 1e. During the grouting process, as the slurry in the prestressed pipe a3 increases, the gas in the prestressed pipe a3 will be discharged through the slurry storage pipe 2a and the second ball valve 2b. In this way, by observing whether there is still gas discharged from the second ball valve 2b, it can be intuitively judged whether the air in the prestressed pipe is completely discharged, thereby ensuring that the prestressed pipe is completely filled with cement-based grouting slurry, thereby greatly improving the overall bearing capacity and service life of the prestressed concrete structure bridge. The slurry storage pipe 2a is arranged vertically, with its lower end communicating with the slurry outlet anchor plate a2. The upper end of the slurry storage pipe 2a is communicated with the second ball valve 2b. The height of the second ball valve 2b is higher than the highest height of the prestressed pipe a3 of the beam body a. A slurry filter 2c is provided inside the upper end of the slurry storage pipe 2a. By arranging the slurry storage pipe 2a vertically and ensuring that the height of the second ball valve 2b is higher than the highest height of the prestressed pipe a3 of the beam body a, it is possible to ensure that the air in the prestressed pipe a3 is completely exhausted. By adding a slurry filter 2c inside the upper end of the slurry storage pipe 2a, the loss of slurry can be reduced during the exhaust process, thereby reducing waste and lowering costs.

[0031] The exhaust end of the exhaust pipe 1e extends outward and is connected to an exhaust observation mechanism 3, which includes a liquid storage tank 3a with an exhaust port, and the liquid storage tank 3a is connected to the exhaust end of the exhaust pipe 1e. By adding the exhaust observation mechanism 3 to the exhaust end of the exhaust pipe 1e, it is possible to more intuitively observe whether gas is discharged from the exhaust pipe 1e. When in use, first fill the liquid storage tank 3a with foam balls. In this way, during the exhaust process, by observing whether the foam balls jump, it is possible to intuitively judge whether gas is discharged from the exhaust pipe 1e. In another solution, the liquid storage tank 3a is connected to the exhaust end of the exhaust pipe 1e through the one-way valve 3b. In this case, when in use, first fill the liquid storage tank 3a with transparent liquid. In this way, during the exhaust process, by observing whether bubbles emerge from the transparent liquid, it is possible to intuitively judge whether gas is discharged from the exhaust pipe 1e.

[0032] A second three-way pipe joint 3c is provided between the one-way valve 3b and the exhaust pipe 1e. The air inlet end of the second three-way pipe joint 3c is connected to the exhaust end of the exhaust pipe 1e, and the exhaust end of the second three-way pipe joint 3c is connected to the one-way valve 3b. The insertion end of the second three-way pipe joint 3c is connected to a third ball valve 3d. By adding the second three-way pipe joint 3c between the one-way valve 3b and the exhaust pipe 1e, connecting the air inlet end of the second three-way pipe joint 3c to the exhaust end of the exhaust pipe 1e, connecting the exhaust end of the second three-way pipe joint 3c to the one-way valve 3b, and adding the third ball valve 3d to the insertion end of the second three-way pipe joint 3c, a probe can be inserted into the prestressed pipe a3 through the third ball valve 3d, the second three-way pipe joint 3c, and the exhaust pipe 1e, providing conditions for more intuitive observation of the grouting process.

[0033] The insertion end of the third ball valve 3d is provided with a slurry observation mechanism 4, which includes a probe 4a, which is movably inserted into the third ball valve 3d and can be extended into the prestressed pipe a3 of the beam body a. The added slurry observation mechanism 4 allows for more intuitive observation of the grouting process, further ensuring that the prestressed pipe is completely filled with cement-based grouting slurry, thereby greatly improving the overall bearing capacity and service life of the prestressed concrete structure bridge. During use, the probe 4a is first inserted into the prestressed pipe a3 through the third ball valve 3d, the second three-way pipe joint 3c, and the exhaust pipe 1e. Then, as the slurry increases, the probe 4a is slowly pulled back to observe the entire grouting process in real time. A probe seal 4b is provided within the third ball valve 3d. The added probe seal 4b prevents gas and slurry from leaking from the probe 4a, making it difficult to observe the discharge of gas and slurry.

[0034] The usage process of this embodiment is as follows:

[0035] When in use, grouting is performed into the first three-way pipe joint 1b through the slurry inlet valve 1c, and the slurry will enter the prestressed pipe a3 of the beam body a along the gap between the slurry inlet end connecting pipe 1a and the exhaust pipe 1e. During the grouting process, as the slurry in the prestressed pipe a3 increases, the gas in the prestressed pipe a3 will be discharged through the exhaust pipe 1e and the slurry storage pipe 2a. By observing whether there are bubbles in the transparent liquid, it can be intuitively judged whether there is gas discharged from the exhaust pipe 1e, and by observing whether there is liquid discharged from the second ball valve 2b, it can be intuitively judged whether there is gas discharged from the slurry storage pipe 2a.

[0036] At the same time, during the grouting process, a probe 4a is inserted into the prestressed pipe a3 through the third ball valve 3d, the second three-way pipe joint 3c and the exhaust pipe 1e. Then, as the grouting volume increases, the probe 4a is slowly pulled back to observe the entire grouting process in real time.

[0037] After grouting is completed, close the first ball valve 1d and the second ball valve 2b and start maintaining pressure. After the pressure maintaining is completed, close the slurry inlet valve 1c and remove the accessories for cleaning and standby.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for enhancing fullness, characterized in that: It comprises a slurry inlet end exhaust mechanism (1) connected to a slurry inlet end anchor plate (a1) at the slurry inlet end of a beam body (a), and a slurry outlet end exhaust mechanism (2) connected to a slurry outlet end anchor plate (a2) at the slurry outlet end of the beam body (a).

2. A fullness enhancement device according to claim 1, characterized in that: The slurry inlet end exhaust mechanism (1) comprises a slurry inlet end connecting pipe (1a) sealedly connected to the slurry inlet end anchor plate (a1); the slurry inlet end of the slurry inlet end connecting pipe (1a) is connected to a first three-way pipe joint (1b); the slurry inlet end of the first three-way pipe joint (1b) is provided with a slurry inlet valve (1c); the exhaust end of the first three-way pipe joint (1b) is connected to a first ball valve (1d); an exhaust pipe (1e) is inserted into the first ball valve (1d); the exhaust pipe (1e) passes through the first three-way pipe joint (1b) and the slurry inlet end anchor plate (a1) in sequence and extends to the prestressed pipe (a3) ​​of the beam body (a).

3. A fullness enhancement device according to claim 2, characterized in that: The outer diameter of the exhaust pipe (1e) is smaller than the inner diameter of the first three-way pipe joint (1b), and the outer diameter of the exhaust pipe (1e) is smaller than the inner diameter of the slurry inlet end connecting pipe (1a). A sealing ring (1f) is provided in the first three-way pipe joint (1b) at a position corresponding to the exhaust pipe (1e), and the sealing ring is located in the exhaust end of the first three-way pipe joint (1b).

4. A fullness enhancement device according to claim 1, characterized in that: The slurry outlet exhaust mechanism (2) comprises a slurry storage pipe (2a) and a second ball valve (2b), one end of the slurry storage pipe (2a) is connected to the slurry outlet anchor plate (a2), and the other end of the slurry storage pipe (2a) is connected to the second ball valve (2b).

5. A fullness enhancement device according to claim 4, characterized in that: The slurry storage pipe (2a) is arranged vertically, the lower end of the slurry storage pipe (2a) is connected to the slurry outlet anchor plate (a2), the upper end of the slurry storage pipe (2a) is connected to the second ball valve (2b), the height of the second ball valve (2b) is higher than the highest height of the prestressed pipe (a3) ​​of the beam body (a), and a slurry filter (2c) is provided inside the upper end of the slurry storage pipe (2a).

6. A fullness enhancement device according to claim 2, characterized in that: The exhaust end of the exhaust pipe (1e) extends outwardly and is connected to an exhaust observation mechanism (3), wherein the exhaust observation mechanism (3) comprises a liquid storage tank (3a) with an exhaust port, and the liquid storage tank (3a) is connected to the exhaust end of the exhaust pipe (1e).

7. A fullness enhancement device according to claim 6, characterized in that: The liquid storage tank (3a) is connected to the exhaust end of the exhaust pipe (1e) via a one-way valve (3b).

8. A fullness enhancement device according to claim 7, characterized in that: A second three-way pipe joint (3c) is provided between the one-way valve (3b) and the exhaust pipe (1e); an air inlet end of the second three-way pipe joint (3c) is connected to an exhaust end of the exhaust pipe (1e); an exhaust end of the second three-way pipe joint (3c) is connected to the one-way valve (3b); and an insertion end of the second three-way pipe joint (3c) is connected to a third ball valve (3d).

9. A fullness enhancement device according to claim 8, characterized in that: The insertion end of the third ball valve (3d) is provided with a slurry observation mechanism (4), and the slurry observation mechanism (4) comprises a detection head (4a), the detection head (4a) is movably inserted in the third ball valve (3d), and the detection head (4a) can be extended into the prestressed pipe (a3) ​​of the beam body (a).

10. A fullness enhancement device according to claim 9, characterized in that: A detection head sealing ring (4b) is provided inside the third ball valve (3d).

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