Slurry replacement device for construction
By designing a mud replacement device with a sealing ring, elastic airbag, and drive motor, the problem of mixing new and old mud during the mud replacement process was solved, achieving rapid and effective mud replacement and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, the mixing of old and new mud is severe during mud replacement, resulting in poor replacement effect, slow speed, and the need for a large amount of new mud, leading to low construction efficiency.
A mud replacement device was designed, comprising a sealing ring, an elastic airbag, a lifting motor, and a grouting pipe. The sealing ring seals the inside of the foundation pit, and the elastic airbag expands into the pit. The driving motor drives the rotating ring and the swing rod to rotate, thereby sealing the sealing plate. Replacement is completed as new mud is injected.
It enables rapid and effective mud replacement, improves construction efficiency, reduces the amount of new mud used, and avoids pollution from mixing new and old mud.
Smart Images
Figure CN224078172U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a mud replacement device used in construction. Background Technology
[0002] In engineering construction, foundation pits are very common facilities. The quality of the drilling mud is crucial during foundation pit construction; poor quality control can easily lead to problems such as pouring difficulties, borehole collapse, and reinforcement cage floating. In severe cases, it can cause pile breakage, mud inclusion, and ultimately, quality and safety accidents. The drilling mud and the mud used for concrete pouring have different functions and parameters. Therefore, mud replacement is a necessary procedure during underground concrete pouring. Since drilling mud is essential for the foundation pit to act as a protective wall and prevent borehole collapse, the existing mud replacement process involves injecting new, high-quality mud into the borehole while simultaneously using a mud pump to extract the old mud. In other words, the injection of new mud and the extraction of old mud are carried out simultaneously to replace the old mud.
[0003] When replacing the drilling mud using the traditional method described above, the old and new mud will convection and mix in the borehole, making it difficult to remove sand and mud clumps. The old mud will contaminate the new mud, resulting in poor replacement effect. Moreover, a large amount of new mud needs to be injected to replace the old mud, which is slow and needs to be improved.
[0004] Therefore, we propose a mud replacement device for construction. Utility Model Content
[0005] The purpose of this invention is to provide a mud replacement device for construction, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a mud replacement device for construction, comprising a base, a lifting motor fixedly installed on the top of the base, a threaded rod fixedly installed on the output end of the lifting motor, a lifting plate threadedly connected to the threaded rod, a grouting pipe fixedly installed in the middle of the lifting plate, a connecting rod fixedly installed on the bottom of the lifting plate, a sealing ring fixedly installed on the bottom of the connecting rod, an elastic airbag provided on the outer circumferential surface of the sealing ring, a fixing plate fixedly installed on the inner circumferential surface of the sealing ring, and a fixing sleeve fixedly installed at the other end of the fixing plate inside the sealing ring, the grouting pipe penetrating the interior of the fixing sleeve. The sealing ring is fixedly installed, with a rotating rod rotatably connected to the inner ring surface of the sealing ring below the fixed plate. The other end of the rotating rod is rotatably connected to the outer circumferential surface of the fixed sleeve. A rotating ring is rotatably mounted on the inner ring surface of the sealing ring above the rotating rod. A drive motor is fixedly installed on the inner ring surface of the sealing ring, and the output end of the drive motor is connected to the bottom of the rotating ring. A first swing rod is rotatably connected to the outer circumferential surface of the rotating ring. A second swing rod is rotatably connected to the other end of the first swing rod. The other end of the second swing rod is fixedly installed to one end of the rotating rod. A sealing plate is fixedly installed on the outer circumferential surface of the rotating rod between the sealing ring and the fixed sleeve.
[0007] Optionally, the inner surface of the sealing ring is rotatably connected to a limiting roller located above the rotating rod, the inner surface of the rotating ring is in rolling connection with the limiting roller, and the rotating ring and the sealing ring are arranged coaxially.
[0008] Optionally, a toothed ring is fixedly installed at the bottom of the rotating ring, and a drive gear is fixedly installed at the output end of the drive motor, with the top of the drive gear meshing with the toothed ring.
[0009] Optionally, a connecting ball pin is fixedly installed on the outer circumferential surface of the rotating ring, one end of the first swing rod is rotatably connected to the rotating ring through the connecting ball pin, and the second swing rod is rotatably connected to the other end of the first swing rod through another connecting ball pin.
[0010] Optionally, the fixing sleeve and the sealing ring are arranged coaxially, the bottom of the fixing sleeve is higher than the bottom of the sealing ring, and the bottom of the grouting pipe is located between the bottom of the fixing sleeve and the bottom of the sealing ring.
[0011] Optionally, the top of the base is provided with a guide rod that slides through and is slidably connected to the lifting plate, and the bottom of the base is provided with fixing nails for fixation.
[0012] Optionally, the elastic airbag is made of a plastic film or a rubber film.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This mud replacement device for construction uses a sealing ring. Before replacing the mud, the elastic air bladder is inflated so that its diameter is slightly larger than the diameter of the pit. The sealing ring and the elastic air bladder are then placed into the pit and extended to the bottom. This allows the original mud inside the pit to be discharged into the sealing ring through the space between the rotating sealing plates inside the sealing ring. The drive motor is then started, driving the drive gear and rotating ring to rotate. This rotating ring drives the first and second swing rods to rotate, which in turn drives the sealing plates to rotate, sealing the inside of the sealing ring. New mud is then injected into the pit through the grouting pipe. The lifting motor then drives the sealing ring to rise with the injection of new mud until the mud replacement is complete. This device has a good mud replacement effect and is faster, which helps to improve construction efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a mud replacement device for construction according to the present invention.
[0016] Figure 2 This is a schematic diagram of the sealing ring structure of a mud replacement device for construction according to the present invention;
[0017] Figure 3 This is a schematic diagram of the rotating rod of a mud replacement device for construction according to the present invention;
[0018] Figure 4 This is a schematic diagram of the rotating ring of a mud replacement device for construction according to the present invention.
[0019] In the diagram: 1. Base; 2. Lifting motor; 3. Threaded rod; 4. Lifting plate; 5. Connecting rod; 6. Sealing ring; 7. Fixing plate; 8. Fixing sleeve; 9. Elastic airbag; 10. Grouting pipe; 11. Rotating rod; 12. Limiting roller; 13. Rotating ring; 14. Gear ring; 15. Drive motor; 16. Drive gear; 17. First swing rod; 18. Second swing rod; 19. Sealing plate. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1 to 4This utility model provides a mud replacement device for construction, including a base 1, a lifting motor 2 fixedly installed on the top of the base 1, a threaded rod 3 fixedly installed on the output end of the lifting motor 2, a lifting plate 4 threadedly connected to the threaded rod 3, a grouting pipe 10 fixedly installed in the middle of the lifting plate 4, a connecting rod 5 fixedly installed on the bottom of the lifting plate 4, a sealing ring 6 fixedly installed on the bottom of the connecting rod 5, an elastic airbag 9 provided on the outer circumference of the sealing ring 6, a fixing plate 7 fixedly installed on the inner circumference of the sealing ring 6, and a fixing plate 7 fixedly installed on the other end of the fixing plate 7. A fixed sleeve 8 is located inside the sealing ring 6. The grouting pipe 10 is fixedly installed through the fixed sleeve 8. A rotating rod 11 located below the fixed plate 7 is rotatably connected through the inner ring surface of the sealing ring 6. The other end of the rotating rod 11 is rotatably connected to the outer circumferential surface of the fixed sleeve 8. A rotating ring 13 located above the rotating rod 11 is rotatably connected to the inner ring surface of the sealing ring 6. A drive motor 15 is fixedly installed on the inner ring surface of the sealing ring 6. The output end of the drive motor 15 is connected to the bottom of the rotating ring 13. A first swing rod is rotatably connected to the outer circumferential surface of the rotating ring 13. 17. The other end of the first swing rod 17 is rotatably connected to the second swing rod 18. The other end of the second swing rod 18 is fixedly installed with one end of the rotating rod 11. A sealing plate 19 located between the sealing ring 6 and the fixed sleeve 8 is fixedly installed on the outer circumference of the rotating rod 11. By setting the sealing ring 6, the elastic airbag 9 is inflated before replacing the mud, so that the diameter of the elastic airbag 9 is slightly larger than the diameter of the pit. Then, the sealing ring 6 and the elastic airbag 9 are placed into the pit and extend to the bottom of the pit, so that the original mud inside the pit passes through the sealing plate inside the sealing ring 6. The slurry is discharged into the sealing ring 6 between 19 and 11. When the drive motor 15 is started, it drives the drive gear 16 and the rotating ring 13 to rotate. The rotating ring 13 drives the first swing rod 17 and the second swing rod 18 to rotate. The rotating rod 11 drives the sealing plate 19 to rotate, thus sealing the inside of the sealing ring 6. Then, new slurry is injected into the pit through the grouting pipe 10. The lifting motor 2 then drives the sealing ring 6 to rise with the injection of new slurry until the slurry replacement is completed. This device has a good slurry replacement effect and is faster, which is conducive to improving construction efficiency.
[0022] The inner ring surface of the sealing ring 6 has a limiting roller 12 located above the rotating rod 11. The inner ring surface of the rotating ring 13 is in rolling connection with the limiting roller 12. The rotating ring 13 is coaxial with the sealing ring 6. A toothed ring 14 is fixedly installed at the bottom of the rotating ring 13. A drive gear 16 is fixedly installed at the output end of the drive motor 15. The top of the drive gear 16 meshes with the toothed ring 14. A connecting ball pin is fixedly installed on the outer circumferential surface of the rotating ring 13. One end of the first swing rod 17 is rotatably connected to the rotating ring 13 through the connecting ball pin. The second swing rod 18 is rotatably connected to the other end of the first swing rod 17 through another connecting ball pin. The fixing sleeve 8 is coaxial with the sealing ring 6. The bottom of the fixing sleeve 8 is higher than the bottom of the sealing ring 6. The bottom of the grouting pipe 10 is located between the bottom of the fixing sleeve 8 and the bottom of the sealing ring 6. The top of the base 1 is provided with a guide slide rod that slides through the lifting plate 4. The bottom of the base 1 is provided with a fixing nail for fixing. The elastic airbag 9 is made of plastic film or rubber film.
[0023] Working principle:
[0024] Before replacing the mud, the elastic airbag 9 is inflated so that its diameter is slightly larger than the diameter of the pit. Then, the sealing ring 6 and the elastic airbag 9 are placed into the pit and extended to the bottom. This allows the original mud inside the pit to be discharged into the sealing ring 6 through the inverted sealing plates 19 inside the sealing ring 6. The drive motor 15 is then started to drive the drive gear 16 and the rotating ring 13 to rotate. The rotating ring 13 drives the first swing rod 17 and the second swing rod 18 to rotate, which in turn drives the sealing plate 19 to rotate, thus sealing the inside of the sealing ring 6. New mud is then injected into the pit through the grouting pipe 10. The lifting motor 2 then drives the sealing ring 6 to rise with the injection of new mud until the mud replacement is complete.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mud replacement device for construction, comprising a base (1), characterized in that, A lifting motor (2) is fixedly installed on the top of the base (1). A threaded rod (3) is fixedly installed on the output end of the lifting motor (2). A lifting plate (4) is threadedly connected to the threaded rod (3). A grouting pipe (10) is fixedly installed in the middle of the lifting plate (4). A connecting rod (5) is fixedly installed at the bottom of the lifting plate (4). A sealing ring (6) is fixedly installed at the bottom of the connecting rod (5). An elastic airbag (9) is provided on the outer circumferential surface of the sealing ring (6). A fixing plate (7) is fixedly installed on the inner ring surface of the sealing ring (6). A fixing sleeve (8) located inside the sealing ring (6) is fixedly installed at the other end of the fixing plate (7). The grouting pipe (10) is fixedly installed through the inside of the fixing sleeve (8). A fixing sleeve (8) located inside the sealing ring (6) is rotatably connected through the inner ring surface of the sealing ring (6). The rotating rod (11) is located below the fixed plate (7). The other end of the rotating rod (11) is rotatably connected to the outer circumferential surface of the fixed sleeve (8). The inner ring surface of the sealing ring (6) has a rotating ring (13) located above the rotating rod (11). The inner ring surface of the sealing ring (6) is fixedly installed with a drive motor (15). The output end of the drive motor (15) is connected to the bottom of the rotating ring (13). The outer circumferential surface of the rotating ring (13) is rotatably connected with a first swing rod (17). The other end of the first swing rod (17) is rotatably connected with a second swing rod (18). The other end of the second swing rod (18) is fixedly installed with one end of the rotating rod (11). The outer circumferential surface of the rotating rod (11) is fixedly installed with a sealing plate (19) located between the sealing ring (6) and the fixed sleeve (8).
2. The mud replacement device for construction according to claim 1, characterized in that, The sealing ring (6) has a limiting roller (12) located above the rotating rod (11) on its inner ring surface. The inner ring surface of the rotating ring (13) is in rolling connection with the limiting roller (12). The rotating ring (13) and the sealing ring (6) are arranged on the same axis.
3. The mud replacement device for construction according to claim 1, characterized in that, A gear ring (14) is fixedly installed at the bottom of the rotating ring (13), and a drive gear (16) is fixedly installed at the output end of the drive motor (15). The top of the drive gear (16) meshes with the gear ring (14).
4. The mud replacement device for construction according to claim 1, characterized in that, A connecting ball pin is fixedly installed on the outer circumferential surface of the rotating ring (13). One end of the first swing rod (17) is rotatably connected to the rotating ring (13) through the connecting ball pin, and the second swing rod (18) is rotatably connected to the other end of the first swing rod (17) through another connecting ball pin.
5. A mud replacement device for construction according to claim 1, characterized in that, The fixing sleeve (8) and the sealing ring (6) are arranged on the same axis. The bottom of the fixing sleeve (8) is higher than the bottom of the sealing ring (6). The bottom of the grouting pipe (10) is located between the bottom of the fixing sleeve (8) and the bottom of the sealing ring (6).
6. A mud replacement device for construction according to claim 1, characterized in that, The base (1) is provided with a guide slide rod that slides through the lifting plate (4) at the top, and a fixing nail is provided at the bottom of the base (1) for fixing.
7. A mud replacement device for construction according to claim 1, characterized in that, The elastic airbag (9) is made of plastic film or rubber film.