Non-coaxial filling degree enhancing device
By using non-coaxial filling degree enhancement device in the construction of prestressed concrete structure bridges, the filling degree in the prestressed pipeline is ensured, and the corrosion problem of steel bars caused by insufficient filling degree of cement-based grouting materials is solved, and the bearing capacity and use of the bridge are improved. Lifespan and reduce construction costs.
Patent Information
- Application Number
- CN202122651658.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-02
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2031-11-02
AI Technical Summary
During the construction of prestressed concrete structure bridges, the cement-based grouting slurry in the prestressed pipeline is low, resulting in corrosion of the steel bars, thereby reducing the bearing capacity and service life of the bridge.
A non-coaxial filling degree enhancement device is designed, including an exhaust mechanism at the inlet and outlet ends. Through the exhaust pipe and observation mechanism, the air in the prestressed pipe is completely discharged and filled with cement-based grouting material to prevent corrosion of the steel bars. .
By intuitively judging the filling conditions in the prestressed pipeline, ensuring that the cement-based grouting material is fully filled, the bearing capacity and service life of the prestressed concrete structural bridge is significantly improved, and the slurry loss is reduced and construction costs are reduced.
Smart Images
Figure CN222183068U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge construction, in particular to a non-coaxial filling degree enhancing device. Background Art
[0002] At present, the damage of prestressed concrete bridges manifests itself in various forms, such as prestress loss, concrete damage and cracking, steel corrosion and support hollowing, etc. These damages will lead to a decrease in the overall stiffness and bearing capacity of prestressed concrete bridges, and are an important cause of prestressed concrete bridge diseases. Among them, steel corrosion is caused by the low filling degree of cement-based grouting material in the prestressed pipe (corrugated pipe) during construction.
[0003] Specifically, during the construction of prestressed concrete structure bridges, cement-based grouting slurry will be filled into the prestressed pipe (corrugated pipe) in the beam body through the grouting valve, 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, in the actual construction process, since the prestressed pipe (corrugated pipe) in the beam body is curved and long, it will result in that when filling the cement-based grouting slurry, it is impossible to intuitively judge whether the air in the prestressed pipe is completely discharged, that is, whether the prestressed pipe is completely filled with cement-based grouting slurry. Once the filling degree of the cement-based grouting slurry in the prestressed pipe (corrugated pipe) is low, 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 utility model is to provide a non-coaxial fullness enhancement device to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A non-coaxial fullness enhancement device comprises an inlet end exhaust mechanism connected to an inlet end anchor plate at the inlet end of a beam body, and an outlet end exhaust mechanism connected to an outlet end anchor plate at the outlet end of the beam body, wherein the inlet end exhaust mechanism is staggered with the inlet valve on the inlet end anchor plate.
[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, an exhaust pipe is inserted in the slurry inlet end connecting pipe, the air inlet end of the exhaust pipe passes through the slurry inlet end anchor plate and extends to the prestressed pipe of the beam body, and a first ball valve is installed on the outside of the exhaust end of the exhaust pipe.
[0009] In the above scheme, 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 three-way pipe joint is provided between the one-way valve and the exhaust pipe, the air inlet end of the three-way pipe joint is connected to the exhaust end of the exhaust pipe, the exhaust end of the three-way pipe joint is connected to the one-way valve, and the insertion end of the three-way pipe joint is connected to a third ball valve.
[0012] In the above scheme, the insertion end of the third ball valve is provided with a slurry observation mechanism, and the slurry observation mechanism includes a detection head, and the detection head is movably inserted in 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 utility model are:
[0014] 1. By adding exhaust structures at both ends of the beam body, 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 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;
[0015] 2. When in use, grouting is carried out into the beam body through the grout inlet valve. 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 exhaust pipe. By observing whether there is still gas discharged from the slurry storage pipe and the exhaust pipe, 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 of the exhaust pipe in the connecting pipe at the slurry inlet end, it can prevent gas and slurry from leaking;
[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 be ensured 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 reducing costs;
[0018] 5. By adding an exhaust observation mechanism at 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 three-way pipe joint between the one-way valve and the exhaust pipe, and connecting the air inlet end of the three-way pipe joint with the exhaust end of the exhaust pipe, and connecting the exhaust end of the three-way pipe joint with the one-way valve, and then adding a third ball valve to the insertion end of the three-way pipe joint, the detection head can be inserted into the prestressed pipe through the third ball valve, the three-way pipe joint and the exhaust pipe, which provides conditions for more intuitive observation of the grouting process;
[0020] 7. The grouting process can be observed more intuitively through the added slurry observation mechanism to further ensure 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. When in use, first insert the detection head into the prestressed pipe through the third ball valve, three-way pipe joint and exhaust pipe, and then slowly pull the detection head back as the slurry increases, so as to observe the entire grouting process in real time;
[0021] 8. The additional detection head sealing ring can prevent 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 It is a structural schematic diagram of a non-coaxial filling enhancement device;
[0023] Figure 2 for Figure 1 A schematic diagram of a local enlarged structure;
[0024] Figure 3 for Figure 1 Another partially enlarged structural schematic diagram of .
[0025] As shown in the figure: exhaust mechanism 1 at the slurry inlet end, connecting pipe 1a at the slurry inlet end, exhaust pipe 1b, sealing ring 1c, first ball valve 1d, 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, three-way pipe joint 3c, third ball valve 3d, slurry observation mechanism 4, detection head 4a, detection head sealing ring 4b, beam body a, anchor plate a1 at the slurry inlet end, anchor plate a2 at the slurry outlet end, prestressed pipe a3, slurry inlet valve b. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1 In the embodiment of the utility model, a non-coaxial filling enhancement device includes a grouting end exhaust mechanism 1 connected to the grouting end anchor plate a1 of the grouting end of the beam body a, and a grouting end exhaust mechanism 2 connected to the grouting end anchor plate a2 of the grouting end of the beam body a, and the grouting end exhaust mechanism 1 is staggered with the grouting valve b on the grouting end anchor plate a1. By adding exhaust structures at both ends of the beam body a, in this way, 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 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.
[0028] The above-mentioned slurry inlet end exhaust mechanism 1 includes a slurry inlet end connecting pipe 1a which is sealed and connected to the slurry inlet end anchor plate a1, and an exhaust pipe 1b is inserted in the slurry inlet end connecting pipe 1a. The air inlet end of the exhaust pipe 1b penetrates the slurry inlet end anchor plate a1 and extends into the prestressed pipe a3 of the beam body a, and a first ball valve 1d is sheathed on the exhaust end of the exhaust pipe 1b. The exhaust pipe 1b is a hose with a certain rigidity, such as a hard polyethylene hose. The surface of the part of the exhaust pipe 1b extending into the beam body a is provided with a through hole, so as to facilitate the exhaust of gas. When in use, grouting is carried out into the beam body through the grouting valve b. 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 1b. In this way, by observing whether there is still gas discharged from the exhaust pipe 1b, 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 1b is smaller than the inner diameter of the slurry inlet end connecting pipe 1a, and a sealing ring 1c is provided in the slurry inlet end connecting pipe 1a at a position corresponding to the exhaust pipe 1b. By adding the sealing ring 1c in the slurry inlet end connecting pipe 1a at a position corresponding to the exhaust pipe 1b, gas and slurry can be prevented from leaking.
[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 performed into the beam body a through the slurry inlet valve b. 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, 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. By arranging the slurry storage pipe 2a vertically and making the height of the second ball valve 2b higher than the highest height of the prestressed pipe a3 of the beam body a, it can be ensured that the air in the prestressed pipe a3 can be completely discharged. 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 reducing costs.
[0031] The exhaust end of the exhaust pipe 1b extends outward and is connected to an exhaust observation mechanism 3, and the exhaust observation mechanism 3 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 1b. By adding the exhaust observation mechanism 3 to the exhaust end of the exhaust pipe 1b, it is possible to more intuitively observe whether there is gas discharged from the exhaust pipe 1b. When in use, first fill the liquid storage tank 3a with foam balls, so that during the exhaust process, by observing whether the foam balls jump, it is possible to intuitively determine whether there is gas discharged from the exhaust pipe 1b. In another scheme, the liquid storage tank 3a is connected to the exhaust end of the exhaust pipe 1b through the one-way valve 3b. At this time, when in use, first fill the liquid storage tank 3a with transparent liquid, so that during the exhaust process, by observing whether bubbles emerge from the transparent liquid, it is possible to intuitively determine whether there is gas discharged from the exhaust pipe 1b.
[0032] A three-way pipe joint 3c is provided between the one-way valve 3b and the exhaust pipe 1b, the air inlet end of the three-way pipe joint 3c is connected to the exhaust end of the exhaust pipe 1b, the exhaust end of the three-way pipe joint 3c is connected to the one-way valve 3b, and the insertion end of the three-way pipe joint 3c is connected to the third ball valve 3d. By adding a three-way pipe joint 3c between the one-way valve 3b and the exhaust pipe 1b, and making the air inlet end of the three-way pipe joint 3c connected to the exhaust end of the exhaust pipe 1b, the exhaust end of the three-way pipe joint 3c is connected to the one-way valve 3b, and then adding a third ball valve 3d to the insertion end of the three-way pipe joint 3c, a detection head can be inserted into the prestressed pipe a3 through the third ball valve 3d, the three-way pipe joint 3c and the exhaust pipe 1b, 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 detection head 4a, which is movably inserted in the third ball valve 3d, and the detection head 4a can be extended to the prestressed pipe a3 of the beam body a. The grouting process can be observed more intuitively through the added slurry observation mechanism 4 to further ensure that the prestressed pipe is fully filled with cement-based grouting slurry, thereby greatly improving the overall bearing capacity and service life of the prestressed concrete structure bridge. When in use, the detection head 4a is first inserted into the prestressed pipe a3 through the third ball valve 3d, the three-way pipe joint 3c and the exhaust pipe 1b, and then the detection head 4a is slowly pulled back as the slurry increases, so as to observe the entire grouting process in real time. The detection head sealing ring 4b is provided in the third ball valve 3d. The added detection head sealing ring 4b can prevent gas and slurry from leaking from the detection head 4a, so that it is not convenient 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 beam body a through the grout inlet valve b. 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 1b and the slurry storage pipe 2a. By observing whether bubbles emerge from the transparent liquid, it can be intuitively determined whether there is gas discharge from the exhaust pipe 1b, and by observing whether liquid is discharged from the second ball valve 2b, it can be intuitively determined whether there is gas discharge from the slurry storage pipe 2a.
[0036] Meanwhile, during the grouting process, the detection head 4a is inserted into the prestressed pipe a3 through the third ball valve 3d, the three-way pipe joint 3c and the exhaust pipe 1b, and then the detection head 4a is slowly pulled back as the slurry increases, so as 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, start pressure maintenance, and after pressure maintenance is completed, close the slurry inlet valve b, 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 may 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 shall be included in the protection scope of the present invention.
Claims
1. A non-coaxial fullness enhancement device, It is characterized in that The invention 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), wherein the slurry inlet end exhaust mechanism (1) is arranged in a staggered manner with a slurry inlet valve (b) on the slurry inlet end anchor plate (a1).
2. A non-coaxial fullness enhancement device according to claim 1, It is 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), an exhaust pipe (1b) is inserted into the slurry inlet end connecting pipe (1a), an air inlet end of the exhaust pipe (1b) passes through the slurry inlet end anchor plate (a1) and extends into the prestressed pipe (a3) of the beam body (a), and a first ball valve (1d) is sheathed on the exhaust end of the exhaust pipe (1b).
3. A non-coaxial fullness enhancement device according to claim 2, It is characterized in that The outer diameter of the exhaust pipe (1b) is smaller than the inner diameter of the pulp inlet end connecting pipe (1a), and a sealing ring (1c) is provided in the pulp inlet end connecting pipe (1a) at a position corresponding to the exhaust pipe (1b).
4. A non-coaxial fullness enhancement device according to claim 1, It is 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 non-coaxial fullness enhancement device according to claim 4, It is 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 non-coaxial fullness enhancement device according to claim 2, It is characterized in that The exhaust end of the exhaust pipe (1b) extends outwardly and is connected to an exhaust observation mechanism (3), the exhaust observation mechanism (3) comprising a liquid storage tank (3a) with an exhaust port, the liquid storage tank (3a) being connected to the exhaust end of the exhaust pipe (1b).
7. A non-coaxial fullness enhancement device according to claim 6, It is characterized in that The liquid storage tank (3a) is connected to the exhaust end of the exhaust pipe (1b) via a one-way valve (3b).
8. A non-coaxial fullness enhancement device according to claim 7, It is characterized in that A three-way pipe joint (3c) is provided between the one-way valve (3b) and the exhaust pipe (1b); an air inlet end of the three-way pipe joint (3c) is connected to an exhaust end of the exhaust pipe (1b); an exhaust end of the three-way pipe joint (3c) is connected to the one-way valve (3b); and an insertion end of the three-way pipe joint (3c) is connected to a third ball valve (3d).
9. A non-coaxial fullness enhancement device according to claim 8, It is 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 non-coaxial fullness enhancement device according to claim 9, It is characterized in that A detection head sealing ring (4b) is provided inside the third ball valve (3d).