Grouting sleeve inner wall anti-corrosion device for storage and transportation of prefabricated parts
By designing suction cups and plugging devices inside the grouting sleeve, the problem of rust on the inner wall of the sleeve during the storage and transportation of precast components was solved, achieving rust prevention and convenient disassembly, improving connection quality and reducing transportation costs.
Patent Information
- Application Number
- CN202422808289.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-18
AI Technical Summary
During the storage and transportation of prefabricated components, the inner wall of the grouting sleeve is prone to rust, leading to connection quality problems.
A sealing device was designed, comprising a grouting cylinder, a bottom cover, a cylindrical shell, a square column, a rotating shaft, a connecting rod, a connecting column, a spring, a rotating plate, and a suction cup. The suction cup adheres to the inner wall of the grouting cylinder, and the combination of the spring and the plug achieves complete sealing of the grouting sleeve, preventing air from entering.
It effectively prevents rust, ensures connection quality, and the sealing device is easy to install and disassemble, saving transportation costs.
Smart Images

Figure CN223482117U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated building technology, and in particular to a rust prevention device for the inner wall of a grouting sleeve for the storage and transportation of prefabricated components. Background Technology
[0002] A rust-preventing device for the inner wall of a grouting sleeve during the storage and transportation of precast components is specifically designed to protect the inner wall of the grouting sleeve from corrosion. It is commonly used in the construction industry to improve the durability and service life of precast components, ensuring that their quality and performance are not affected during storage and transportation.
[0003] A rust-proof device for the inner wall of a grouting sleeve for the storage and transportation of precast components effectively isolates moisture and corrosive substances from direct contact with the inner wall of the sleeve through built-in anti-corrosion materials and structural design. In the prior art, because the bottom of the grouting sleeve is open during the stacking and transportation of precast components, it is prone to corrosion in high humidity environments. During assembly, the rusted parts of the inner wall of the sleeve do not bond well with the grouting material, resulting in connection quality problems. Therefore, a rust-proof device for the inner wall of a grouting sleeve for the storage and transportation of precast components is proposed to solve the above problems. Summary of the Invention
[0004] To overcome the above deficiencies, this utility model provides a rust prevention device for the inner wall of a grouting sleeve for the storage and transportation of precast components, aiming to improve the problem that the inner wall of the sleeve is prone to rust during the stacking and transportation of precast components due to their open layout.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A rust-proof device for the inner wall of a grouting sleeve for the storage and transportation of precast components includes a grouting cylinder. A bottom cover is detachably connected to the bottom of the grouting cylinder. A cylindrical shell is fixedly connected inside the bottom cover. A square column is slidably connected inside the cylindrical shell. Multiple rotating shafts are rotatably connected to the outer wall of the square column. A connecting rod is fixedly connected to the outer wall of each rotating shaft. A second rotating shaft is located in the middle of each connecting rod. A connecting column is fixedly connected to the other end of each connecting rod. A spring is fixedly connected to one end of each connecting column. A rotating plate is fixedly connected to the other end of each connecting column. A rotating shaft is fixedly connected to one end of each rotating plate. A suction cup is fixedly connected to the other end of each rotating plate. A sealing component for sealing the cement inlet is rotatably connected to the outer wall of the square column.
[0007] As a further description of the above technical solution:
[0008] The sealing assembly includes two rotating cylinders. A connecting rod 2 is fixedly connected to the outer wall of each rotating cylinder. Two rotating columns are provided at the middle end of the connecting rod 2. A sliding column is rotatably connected to the inner wall of the left rotating column. A plug is rotatably connected to the other end of the connecting rod 2. A limit shell is fixedly connected to one side of the outer wall of the plug. Two fixed cylinders are fixedly connected to the outer wall of the cylindrical shell. Two springs 2 are fixedly connected to the outer wall of the cylindrical shell. Two grouting ports are fixedly connected to the outer wall of the grouting cylinder.
[0009] As a further description of the above technical solution:
[0010] The top of the grouting cylinder is provided with a threaded groove, and a partition is fixedly connected to the inner wall of the grouting cylinder.
[0011] As a further description of the above technical solution:
[0012] The other side of the plurality of suction cups is in contact with the inner wall of the grouting cylinder, and the two ends of the plurality of rotating shafts are rotatably connected to the top of the bottom cover;
[0013] As a further description of the above technical solution:
[0014] The other end of each of the springs is fixedly connected to the outer wall of the cylindrical shell;
[0015] As a further description of the above technical solution:
[0016] The outer wall of the cylindrical shell is fixedly connected to multiple sleeves, and the outer wall of the connecting column is slidably connected to the inner wall of the sleeves.
[0017] As a further description of the above technical solution:
[0018] The two ends of the two rotating cylinders are rotatably connected to the outer wall of the square column, and the two ends of the sliding column are slidably connected to the inner wall of the fixed cylinder;
[0019] As a further description of the above technical solution:
[0020] The other ends of the two springs are fixedly connected to the outer wall of the cylindrical shell, and the outer wall of the blockage is in contact with the inner wall of the grouting port.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the sealing device is placed into the grouting cylinder by the positioning ball. Pressing the square column causes the connecting column to slide through the two sections of the connecting rod, which in turn causes the rotating plate to rotate. This causes the suction cup to adhere to the inner wall of the grouting cylinder, fixing the bottom cover to the bottom of the grouting cylinder. At the same time, the spring restores its deformation and causes the plug to enter the grouting port to form a sealing structure. This achieves complete sealing of the grouting sleeve, preventing air from entering the grouting sleeve and causing corrosion to its inner wall, which would reduce the connection quality during subsequent assembly.
[0023] 2. In this utility model, by pulling the square column, the two sections of the connecting rod one move, thereby causing the connecting column to move inward, which in turn causes the rotating plate to rotate. The rotating plate causes the suction cup to detach from the inner wall of the grouting cylinder. At the same time, the fixed end of the connecting rod two descends, causing the rotating section of the connecting rod two to rotate, thereby causing the sliding section of the connecting rod two to slide inward, so as to separate the blockage from the grouting port. Then, by pulling the cylindrical shell, the entire sealing device can be disassembled, realizing convenient installation and disassembly of the sealing device, so as to facilitate the reuse of the sealing device and save transportation costs. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a rust prevention device for the inner wall of a grouting sleeve for the storage and transportation of precast components, as proposed in this utility model.
[0025] Figure 2 This is a schematic diagram of the grouting cylinder of the grouting sleeve anti-rust device for the inner wall of the grouting sleeve for the storage and transportation of prefabricated components proposed in this utility model;
[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0027] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0028] Legend:
[0029] 1. Grouting cylinder; 2. Threaded groove; 3. Partition plate; 4. Bottom cover; 5. Cylindrical shell; 6. Square column; 7. Rotating shaft one; 8. Connecting rod one; 9. Rotating shaft two; 10. Connecting column; 11. Sleeve; 12. Spring one; 13. Rotating plate; 14. Rotating shaft three; 15. Suction cup; 16. Rotating cylinder; 17. Connecting rod two; 18. Rotating column; 19. Sliding column; 20. Block; 21. Limiting shell; 22. Spring two; 23. Fixing cylinder; 24. Grouting port. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1 to 3 This utility model provides an embodiment of a rust prevention device for the inner wall of a grouting sleeve for the storage and transportation of precast components. The device includes a grouting cylinder 1 with a threaded groove 2 at its top for threaded connection with reinforcing bars to ensure stability. A partition 3 is fixedly connected to the inner wall of the grouting cylinder 1 to effectively separate the internal space and prevent cement leakage during grouting. A bottom cover 4 is detachably connected to the bottom of the grouting cylinder 1, matching the model of the grouting cylinder 1. A positioning ball for precise positioning is provided on the top of the bottom cover 4, while a positioning groove is provided on the bottom of the grouting cylinder 1 to achieve precise docking between the bottom cover 4 and the bottom of the grouting cylinder 1 and ensure tight docking.
[0032] A cylindrical shell 5 is fixedly connected inside the bottom cover 4. The cylindrical shell 5 is used to fix the entire sealing mechanism and provide a support point for the sealing mechanism. A square column 6 is slidably connected inside the cylindrical shell 5. The sealing mechanism is driven by pulling the square column 6, thereby effectively sealing the grouting cylinder 1. Multiple rotating shafts 7 are rotatably connected to the outer wall of the square column 6. The rotating shafts 7 are used to provide rotation support points. A connecting rod 8 is fixedly connected to the outer wall of the rotating shaft 7. A rotating shaft 9 is set in the middle of the connecting rod 8. The connecting rod 8 is divided into two sections, namely the fixed end and the movable end. The segment provides a rotational foundation through the rotating shaft 9, so that when the fixed segment of the connecting rod 8 moves vertically, it drives the movable segment to move horizontally. The other end of the connecting rod 8 is fixedly connected to a connecting post 10. Multiple sleeves 11 are fixedly connected to the outer wall of the cylindrical shell 5. The outer wall of the connecting post 10 is slidably connected to the inner wall of the sleeve 11. The subsequent fixing mechanism is fixed by the sliding of the connecting post 10 within the sleeve 11. One end of the connecting post 10 is fixedly connected to a spring 12, and the other ends of the multiple springs 12 are fixedly connected to the outer wall of the cylindrical shell 5 (e.g., ...). Figure 3 As shown, spring 12 is in the extended state at this time. The entire sealing mechanism is deployed and retracted through the compression and extension of spring 12.
[0033] A rotating plate 13 is fixedly connected to the other end of the connecting column 10. A rotating shaft 14 is fixedly connected to one end of the rotating plate 13. The two ends of multiple rotating shafts 14 are rotatably connected to the top of the bottom cover 4. The rotating shafts 14 provide a rotation support point for the rotating plate 13, thereby controlling the rotating plate 13 to rotate around the rotating shafts 14. A suction cup 15 is fixedly connected to the other end of the rotating plate 13. When the connecting column 10 slides, it drives the rotating plate 13 to rotate around the rotating shafts 14, thereby driving the suction cup 15 to move, thereby realizing the fixation and separation of the entire bottom cover 4. The other side of the multiple suction cups 15 is in contact with the inner wall of the grouting cylinder 1. The suction cups 15 are adsorbed on the inner wall of the grouting cylinder 1 to realize the stability of the entire sealing mechanism. A sealing component for sealing the cement inlet is rotatably connected to the outer wall of the square column 6.
[0034] Reference Figure 1 , Figure 2 , Figure 4 The sealing assembly includes two rotating cylinders 16. The design of the sealing assembly primarily prevents air and moisture from contacting the inner wall of the grouting sleeve 11, thus preventing corrosion. The two ends of the rotating cylinders 16 are rotatably connected to the outer wall of the square column 6. The two rotating cylinders 16 serve as the supporting structure for the entire sealing assembly. Their rotatable connection to the outer wall of the square column 6 ensures the flexibility and stability of the structure. A connecting rod 17 is fixedly connected to the outer wall of the rotating cylinders 16. The connecting rod 17 is divided into three sections: a fixed section, a rotating section, and a sliding section. When the square column 6 drives the fixed section to move vertically, the rotating section rotates, thereby driving the sliding section to slide. Two rotating columns 18 are provided at the middle end of the connecting rod 17. A sliding column 19 is rotatably connected to the inner wall of the left rotating column 18. A plug 20 is rotatably connected to the other end of the connecting rod 17. A limiting shell 21 is fixedly connected to one side of the outer wall of the plug 20. The limiting shell 21 is used to limit the movement of the plug 20 and keep it horizontal. Two fixed cylinders 23 are fixedly connected to the outer wall of the cylindrical shell 5. The fixed cylinders 23 have cavities and grooves that support the sliding of the sliding column 19, so that the sliding section of the connecting rod 17 can slide. The two ends of the sliding column 19 are slidably connected to the inner wall of the fixed cylinder 23. Two springs 22 are fixedly connected to the outer wall of the cylindrical shell 5. (e.g., Figure 4 As shown, spring 22 is in the extended state. The entire sealed mechanism is opened and retracted through the compression and extension of spring 22. The other ends of both springs 22 are fixedly connected to the outer wall of the cylindrical shell 5. Two grouting ports 24 are fixedly connected to the outer wall of the grouting cylinder 1. The grouting ports 24 are usually exposed outside the precast component so that cement can be poured into the grouting cylinder 1 through the grouting ports 24. The outer wall of the plug 20 is in contact with the inner wall of the grouting port 24. The plug 20 and the grouting port 24 are matched in model and made of soft rubber material to prevent the stress generated when the plug 20 is separated from the grouting port 24 from being unable to be relieved, which would cause damage to the mechanism.
[0035] Working principle: When in use, the sealing device is inserted into the grouting cylinder 1, so that the positioning ball on the top of the bottom cover 4 enters the positioning groove at the bottom of the grouting cylinder 1. Pressing the square column 6 causes the square column 6 to move upward, thereby bringing the two sections of the connecting rod 8 to the same horizontal plane, thus causing the connecting column 10 to move outward. The outward movement of the connecting column 10 drives the rotating plate 13 to rotate around the rotating shaft 14. Then, the suction cup 15 at the other end of the rotating plate 13 is attracted to the inner wall of the grouting cylinder 1, achieving precise positioning and fixation, and aligning the plug 20 with the grouting port 24. The spring 22 restores its deformation and drives the plug 20 into the grouting port 24, thereby sealing the grouting port 24 and finally completely sealing the grouting cylinder 1.
[0036] Before the grouting operation, the square column 6 is pulled down. As the square column 6 moves downward, it causes the fixed section of the rotating cylinder 16 and the second connecting rod 17 to descend, thereby causing the rotating section of the second connecting rod 17 to rotate. The rotating section of the second connecting rod 17 causes the sliding section of the second connecting rod 17 to slide inward through the sliding column 19 in the groove of the fixed cylinder 23, thereby causing the blockage 20 to separate from the grouting port 24. At the same time, due to the downward movement of the square column 6, the two sections of the first connecting rod 8 form an angle and cause the second connecting rod 17 to move inward, thereby causing the connecting column 10 to move into the inside of the sleeve 11, thereby causing the rotating plate 13 to rotate in the opposite direction around the third rotating shaft 14, thereby causing the suction cup 15 to separate from the inner wall of the grouting cylinder 1. Then, the cylindrical shell 5 can be pulled out to remove the entire sealing device.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rust-prevention device for the inner wall of a grouting sleeve used for the storage and transportation of precast components, characterized in that: The device includes a grouting cylinder, a bottom cover detachably connected to the bottom of the grouting cylinder, a cylindrical shell fixedly connected inside the bottom cover, a square column slidably connected inside the cylindrical shell, multiple rotating shafts rotatably connected to the outer wall of the square column, a connecting rod fixedly connected to the outer wall of the rotating shaft, a rotating shaft 2 located in the middle of the connecting rod, a connecting column fixedly connected to the other end of the connecting rod, a spring fixedly connected to one end of the connecting column, a rotating plate fixedly connected to the other end of the connecting column, a rotating shaft 3 fixedly connected to one end of the rotating plate, a suction cup fixedly connected to the other end of the rotating plate, and a sealing assembly for sealing the cement inlet rotatably connected to the outer wall of the square column.
2. The anti-rust device for the inner wall of a grouting sleeve for the storage and transportation of precast components according to claim 1, characterized in that: The sealing assembly includes two rotating cylinders. A connecting rod 2 is fixedly connected to the outer wall of each rotating cylinder. Two rotating columns are provided at the middle end of the connecting rod 2. A sliding column is rotatably connected to the inner wall of the left rotating column. A plug is rotatably connected to the other end of the connecting rod 2. A limit shell is fixedly connected to one side of the outer wall of the plug. Two fixed cylinders are fixedly connected to the outer wall of the cylindrical shell. Two springs 2 are fixedly connected to the outer wall of the cylindrical shell. Two grouting ports are fixedly connected to the outer wall of the grouting cylinder.
3. The anti-rust device for the inner wall of a grouting sleeve for the storage and transportation of precast components according to claim 1, characterized in that: The top of the grouting cylinder is provided with a threaded groove, and a partition is fixedly connected to the inner wall of the grouting cylinder.
4. The anti-rust device for the inner wall of a grouting sleeve for the storage and transportation of precast components according to claim 1, characterized in that: The other side of the plurality of suction cups is in contact with the inner wall of the grouting cylinder, and the two ends of the plurality of rotating shafts are rotatably connected to the top of the bottom cover.
5. The anti-rust device for the inner wall of a grouting sleeve for the storage and transportation of precast components according to claim 1, characterized in that: The other end of each of the springs is fixedly connected to the outer wall of the cylindrical shell.
6. The anti-rust device for the inner wall of a grouting sleeve for the storage and transportation of precast components according to claim 1, characterized in that: The outer wall of the cylindrical shell is fixedly connected to multiple sleeves, and the outer wall of the connecting column is slidably connected to the inner wall of the sleeves.
7. A rust-preventing device for the inner wall of a grouting sleeve for the storage and transportation of precast components according to claim 2, characterized in that: The two ends of the two rotating cylinders are rotatably connected to the outer wall of the square column, and the two ends of the sliding column are slidably connected to the inner wall of the fixed cylinder.
8. A rust-preventing device for the inner wall of a grouting sleeve for the storage and transportation of precast components according to claim 2, characterized in that: The other ends of the two springs are fixedly connected to the outer wall of the cylindrical shell, and the outer wall of the blockage is in contact with the inner wall of the grouting port.