Pressure grouting device for backfilling of bridge and culvert abutment
By designing a pressure grouting device for bridge and culvert abutment backfilling, the problems of grout clumping and unevenness were solved, and uniform mixing and filtration of the grout were achieved, ensuring the grouting effect and the reliability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YONGSHENG CONSTR ENG CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pressure grouting devices for bridge and culvert abutment backfilling suffer from problems such as grout clumping, unevenness, and grouting pipe blockage, resulting in poor grouting effects.
A pressure grouting device including a stirring component, a filtering component, and a grouting pipe was designed. The stirring component stirs the grout, the pressure pump and the filtering component ensure the uniformity of the grout, and the grouting pipe enables precise injection.
It improves the uniformity and stability of the grout, reduces grouting pipe blockage, extends the service life of the equipment, and ensures the uniformity and effectiveness of grouting.
Smart Images
Figure CN224531469U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge and culvert abutment backfilling technology, specifically a pressure grouting device for backfilling bridge and culvert abutments. Background Technology
[0002] The backfill area behind bridge and culvert abutments is the connection between the abutment and the roadbed. It is prone to uneven settlement due to insufficient compaction of the fill material, improper foundation treatment, or vehicle load. Such settlement may cause problems such as bridge approach slab settlement and road surface cracking, which seriously affect driving safety and comfort and increase later maintenance costs.
[0003] To address the issue of deep soil consolidation, grout needs to be injected into the soil. Grout can effectively fill pores, compact the soil, and enhance its integrity, significantly improving the bearing capacity and deformation resistance of the abutment backfill. Through grouting, weak layers in the soil can be eliminated, settlement differences can be reduced, and the transition between the abutment and the roadbed can be improved.
[0004] The existing pressure grouting device used for backfilling bridge and culvert abutments has a long grouting process. After the grout in the storage tank is left to stand for a long time, it may clump together, resulting in uneven grouting and poor grouting effect. It can also easily cause blockage of the grouting pipe.
[0005] Therefore, this utility model provides a pressure grouting device for backfilling bridge and culvert abutments. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The pressure grouting device for backfilling bridge and culvert abutments of this utility model includes a base plate, a storage tank fixedly connected to the top of the base plate, a stirring assembly slidably connected to the top of the storage tank, a first connecting pipe fixedly connected to the bottom of the storage tank, a pressure pump fixedly connected to the end of the first connecting pipe, the pressure pump fixedly connected to the top of the base plate, a second connecting pipe fixedly connected to the output end of the pressure pump, a filter assembly fixedly connected to the end of the second connecting pipe, the filter assembly fixedly connected to the top of the base plate, a flexible hose fixedly connected to the side wall of the filter assembly, and a grouting pipe fixedly connected to the end of the flexible hose. Through the above structure, the grout can be effectively stirred and filtered, improving the uniformity of the grout.
[0008] Preferably, the stirring assembly includes a bucket lid, a servo motor is fixedly connected to the top of the bucket lid, a rotating shaft is rotatably connected to the bottom of the bucket lid, and the rotating shaft is connected to the output end of the servo motor. Two sets of symmetrically arranged stirring rods are fixedly connected to the middle of the rotating shaft, and scrapers are fixedly connected to the ends of the stirring rods. The scrapers contact the inner wall of the storage bucket. With the above structure, the slurry adhering to the inner wall of the storage bucket can be scraped off while stirring the slurry, thereby improving the overall uniformity and stability of the slurry.
[0009] Preferably, two symmetrically arranged connecting plates are fixed to the middle of the storage tank. A bracket is hinged to the top of the connecting plate, and a hand-adjusting bolt is threaded to the top of the bracket. A threaded cylinder is threaded to the end of the hand-adjusting bolt and fixed to the top of the tank lid. Through the above structure, the tank lid can be effectively fixed, reducing the possibility of it slipping off the top of the storage tank and improving the mixing effect of the slurry.
[0010] Preferably, the filtration assembly includes a filter box, the top of which is slidably connected to a cover, and the bottom of the cover is fixed with two symmetrically arranged filter screens. The filter screens are in contact with the inner wall of the filter box. Through the above structure, the slurry can be effectively filtered. The filter screens are detachable, which facilitates cleaning by the operator.
[0011] Preferably, a sealing ring is bonded to the bottom of the cover. The sealing ring is made of rubber. Through the above structure, the sealing ring can effectively increase the friction between the cover and the filter box, making the connection tighter.
[0012] Preferably, a handle is fixedly connected to the middle of the grouting pipe, and the handle is located at one end near the hose. With the above structure, the operator can more easily pick up the grouting pipe, thereby making the direction and angle of insertion of the grouting pipe more accurate.
[0013] Preferably, two sets of rollers are fixed to the bottom of the base plate, and the two sets of rollers are arranged symmetrically. With the above structure, the device can be moved quickly, and the working angle and position of the device can be adjusted according to the needs, which effectively improves the flexibility of the device.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The pressure grouting device for bridge and culvert abutment backfilling described in this utility model, by setting up a stirring component to stir the grout inside the storage tank, starting the pressure pump, the pressure pump draws the grout from the storage tank, the grout flows through the first connecting pipe and the second connecting pipe and enters the filter component, the filter component filters the grout, and the filtered grout flows through the hose and out of the grouting pipe, the structure can effectively stir and filter the grout, improve the uniformity of the grout, reduce the impact of impurities on the grouting results, and also reduce the situation where large particles in the grout in the grout cause blockage of the grouting pipe during the grouting process, thereby extending the service life of the device.
[0016] 2. The pressure grouting device for backfilling bridge and culvert abutments described in this utility model, by starting a servo motor, drives a rotating shaft to rotate at the bottom of the bucket cover. When the rotating shaft rotates, it drives a stirring rod to rotate. Simultaneously, the rotating rod drives a scraper to rotate. This structure can scrape off the grout adhering to the inner wall of the storage bucket while stirring the grout. This ensures that the components of the grout adhering to the inner wall of the storage bucket are mixed synchronously with the grout inside the storage bucket, reducing the occurrence of local component deviations and improving the overall uniformity and stability of the grout, thereby improving the uniformity of grouting. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a cross-sectional view of the storage bucket in this utility model;
[0020] Figure 3 This is a schematic diagram of the threaded cylinder in this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the filter screen in this utility model.
[0022] In the diagram: 1. Base plate; 11. Storage tank; 12. Mixing assembly; 13. First connecting pipe; 14. Pressure pump; 15. Second connecting pipe; 16. Filter assembly; 17. Hoses; 18. Grouting pipe; 2. Tank lid; 21. Servo motor; 22. Rotating shaft; 23. Mixing rod; 24. Scraper; 3. Connecting plate; 31. Bracket; 32. Adjustable bolt; 33. Threaded cylinder; 4. Filter box; 41. Box lid; 42. Filter screen; 5. Sealing ring; 6. Handle; 7. Roller. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 4 As shown in the embodiment of this utility model, a pressure grouting device for backfilling bridge and culvert abutments includes a base plate 1. A storage tank 11 is fixedly connected to the top of the base plate 1. A mixing assembly 12 is slidably connected to the top of the storage tank 11. A first connecting pipe 13 is fixedly connected to the bottom of the storage tank 11. A pressure pump 14 is fixedly connected to the end of the first connecting pipe 13. The pressure pump 14 is fixedly connected to the top of the base plate 1. A second connecting pipe 15 is fixedly connected to the output end of the pressure pump 14. A filter assembly 16 is fixedly connected to the end of the second connecting pipe 15. The filter assembly 16 is fixedly connected to the top of the base plate 1. A hose 17 is fixedly connected to the side wall of the filter assembly 16. A grouting pipe 18 is fixedly connected to the end of the hose 17. During operation, the mixing... Component 12 stirs the slurry inside the storage tank 11 to mix it evenly. Then, the pressure pump 14 is started to extract the slurry from the storage tank 11. The slurry flows through the first connecting pipe 13 and the second connecting pipe 15 and enters the filter component 16. The filter component 16 filters the slurry to remove large particles of impurities. The filtered slurry flows through the hose 17 and out of the grouting pipe 18. Through the above structure, the slurry can be effectively stirred and filtered, which improves the uniformity of the slurry, reduces the impact of impurities on the grouting results, and also reduces the possibility of large particles in the slurry clogging the grouting pipe 18 during the grouting process, thereby extending the service life of the device.
[0026] like Figures 1 to 3As shown, the stirring assembly 12 includes a lid 2. A servo motor 21 is fixedly connected to the top of the lid 2, and a rotating shaft 22 is rotatably connected to the bottom of the lid 2. The rotating shaft 22 is connected to the output end of the servo motor 21. Two sets of symmetrically arranged stirring rods 23 are fixedly connected to the middle of the rotating shaft 22. Scrapers 24 are fixedly connected to the ends of the stirring rods 23. The scrapers 24 contact the inner wall of the storage container 11. During operation, the servo motor 21 is started, and the servo motor 21 drives the rotating shaft 22 to rotate at the bottom of the lid 2. When the rotating shaft 22 rotates, it drives the stirring rods 23. The stirring rod 23 rotates to agitate the slurry inside the storage tank 11. Simultaneously, the rotating rod 23 drives the scraper 24 to rotate, scraping off the slurry adhering to the inner wall of the storage tank 11. This structure allows for simultaneous agitation and scraping off of the slurry adhering to the inner wall of the storage tank 11, ensuring that the components of the slurry adhering to the inner wall of the storage tank 11 are mixed synchronously with those of the slurry inside the storage tank 11. This reduces localized component deviations, improves the overall uniformity and stability of the slurry, and ultimately enhances the uniformity of the grouting process.
[0027] like Figure 2 and Figure 3 As shown, two symmetrically arranged connecting plates 3 are fixed to the middle of the storage tank 11. A bracket 31 is hinged to the top of the connecting plate 3. A hand-adjusting bolt 32 is threaded to the top of the bracket 31. A threaded cylinder 33 is threaded to the end of the hand-adjusting bolt 32. The threaded cylinder 33 is fixed to the top of the tank cover 2. During operation, the servo motor 21 may vibrate, causing the tank cover 2 to slip off the top of the storage tank 11. The bracket 31 is moved to make it horizontal. The hand-adjusting bolt 32 on the bracket 31 is rotated. When the hand-adjusting bolt 32 rotates, it moves in the vertical direction. When the hand-adjusting bolt 32 is inserted into the threaded cylinder 33, it is threaded to it. Through the above structure, the tank cover 2 can be effectively fixed, reducing the possibility of it slipping off the top of the storage tank 11, making the tank cover 2 more stable, and indirectly improving the effect of slurry mixing.
[0028] like Figure 1 and Figure 4 As shown, the filter assembly 16 includes a filter box 4. A box cover 41 is slidably connected to the top of the filter box 4. Two symmetrically arranged filter screens 42 are fixed to the bottom of the box cover 41. The filter screens 42 are in contact with the inner wall of the filter box 4. During operation, the slurry flows into the filter assembly 16, and the filter screens 42 in the filter assembly 16 filter the slurry. When a lot of impurities accumulate on the filter screens 42, the box cover 41 is slid upward to remove the filter screens 42 from the inside of the filter box 4. Through the above structure, the slurry can be effectively filtered, making the slurry flow uniform and improving the uniformity of grouting. In addition, the filter screens 42 are detachable, which makes it convenient for operators to clean the filter screens 42.
[0029] like Figure 4As shown, a sealing ring 5 is bonded to the bottom of the cover 41. The sealing ring 5 is made of rubber. During operation, the sealing ring 5 is set at the bottom of the cover 41. The sealing ring 5 is made of rubber and has good elasticity. Through the above structure, the sealing ring 5 can effectively increase the friction between the cover 41 and the filter box 4, making the connection tighter and reducing the leakage of slurry from the gap between the filter box 4 and the cover 41.
[0030] like Figure 1 As shown, a handle 6 is fixedly connected to the middle of the grouting pipe 18. The handle 6 is located at one end near the hose 17. During operation, the grouting pipe 18 can be gripped by the handle 6 to pick up the grouting pipe 18. With the above structure, the operator can pick up the grouting pipe 18 more conveniently, so that the direction and angle of insertion of the grouting pipe 18 are more accurate, ensuring that the grout can be accurately injected into the grouting hole.
[0031] like Figure 1 As shown, two sets of rollers 7 are fixed to the bottom of the base plate 1. The two sets of rollers 7 are arranged symmetrically. During operation, it may be necessary to move the device. By setting rollers 7 at the bottom of the base plate 1, the device can be moved quickly. The working angle and position of the device can be adjusted according to the needs, which effectively improves the flexibility of the device.
[0032] During operation, the stirring component 12 stirs the slurry inside the storage tank 11 to ensure uniform mixing. The pressure pump 14 is then activated, drawing the slurry from the storage tank 11. The slurry flows through the first connecting pipe 13 and the second connecting pipe 15 before entering the filter component 16. The filter component 16 filters the slurry, removing large particles of impurities. The filtered slurry then flows through the hose 17 and exits from the grouting pipe 18. This structure effectively stirs and filters the slurry, improving its uniformity, reducing the impact of impurities on the grouting results, and minimizing the risk of large particles clogging the grouting pipe 18 during the grouting process. This extends the lifespan of the device. The servo motor 21 is then activated, driving the rotating shaft 22. Rotating the bottom of the lid 2 causes the rotating shaft 22 to rotate, which in turn drives the stirring rod 23 to rotate, thereby stirring the slurry in the storage tank 11. Simultaneously, the rotating stirring rod 23 drives the scraper 24 to rotate, scraping off the slurry adhering to the inner wall of the storage tank 11. This structure allows for simultaneous stirring and scraping off of the slurry adhering to the inner wall of the storage tank 11, ensuring that the components of the slurry adhering to the inner wall of the storage tank 11 are mixed synchronously with the slurry inside the storage tank 11. This reduces local component deviations and improves the overall uniformity and stability of the slurry, thus enhancing the uniformity of grouting. The servo motor 21 may vibrate during operation, causing the lid 2 to slip off the top of the storage tank 11. Moving the bracket 31 to a horizontal position and rotating it... The hand-adjusting bolt 32 on the bracket 31 moves vertically when rotated. When the hand-adjusting bolt 32 is inserted into the threaded cylinder 33 and threadedly connected to it, the bucket lid 2 can be effectively fixed, reducing the possibility of it slipping off the top of the storage bucket 11, making the bucket lid 2 more stable, and indirectly improving the slurry mixing effect. The slurry flows into the filter assembly 16, where the filter screen 42 filters the slurry. When a lot of impurities accumulate on the filter screen 42, the box cover 41 can be slid upwards to remove the filter screen 42 from the inside of the filter box 4. Through the above structure, the slurry can be effectively filtered, making the slurry flow uniform and improving the uniformity of grouting. Furthermore, the filter screen 42 is detachable, which facilitates... The operator cleans the filter screen 42. A sealing ring 5 is installed at the bottom of the cover 41. The sealing ring 5 is made of rubber and has good elasticity. Through this structure, the sealing ring 5 can effectively increase the friction between the cover 41 and the filter box 4, making the connection tighter and reducing the leakage of slurry from the gap between the filter box 4 and the cover 41. A handle 6 is installed on the grouting pipe 18, which can be held to pick up the grouting pipe 18. Through this structure, the operator can more easily pick up the grouting pipe 18, so that the direction and angle of insertion of the grouting pipe 18 are more accurate, ensuring that the slurry can be accurately injected into the grouting hole. If it may be necessary to move the device, rollers 7 are installed at the bottom of the base plate 1. Through this structure, the device can be moved quickly.The operating angle and position of the device can be adjusted according to needs, effectively improving its flexibility.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pressure grouting device for backfilling bridge and culvert abutments, characterized in that: Includes a base plate (1), a storage tank (11) is fixedly connected to the top of the base plate (1), a stirring assembly (12) is slidably connected to the top of the storage tank (11), a first connecting pipe (13) is fixedly connected to the bottom of the storage tank (11), a pressure pump (14) is fixedly connected to the end of the first connecting pipe (13), the pressure pump (14) is fixedly connected to the top of the base plate (1), a second connecting pipe (15) is fixedly connected to the output end of the pressure pump (14), a filter assembly (16) is fixedly connected to the end of the second connecting pipe (15), the filter assembly (16) is fixedly connected to the top of the base plate (1), a hose (17) is fixedly connected to the side wall of the filter assembly (16), and a grouting pipe (18) is fixedly connected to the end of the hose (17).
2. The pressure grouting device for backfilling bridge and culvert abutments according to claim 1, characterized in that: The stirring assembly (12) includes a bucket lid (2), a servo motor (21) is fixedly connected to the top of the bucket lid (2), a rotating shaft (22) is rotatably connected to the bottom of the bucket lid (2), and the rotating shaft (22) is connected to the output end of the servo motor (21). Two sets of symmetrically arranged stirring rods (23) are fixedly connected to the middle of the rotating shaft (22), and scrapers (24) are fixedly connected to the ends of the stirring rods (23). The scrapers (24) are in contact with the inner wall of the storage bucket (11).
3. A pressure grouting device for backfilling bridge and culvert abutments according to claim 2, characterized in that: Two symmetrically arranged connecting plates (3) are fixed to the middle of the storage bucket (11). A bracket (31) is hinged to the top of the connecting plate (3). A hand-adjusting bolt (32) is threaded to the top of the bracket (31). A threaded cylinder (33) is threaded to the end of the hand-adjusting bolt (32). The threaded cylinder (33) is fixed to the top of the bucket lid (2).
4. A pressure grouting device for backfilling bridge and culvert abutments according to claim 1, characterized in that: The filter assembly (16) includes a filter box (4), and a box cover (41) is slidably connected to the top of the filter box (4). Two symmetrically arranged filter screens (42) are fixed to the bottom of the box cover (41), and the filter screens (42) are in contact with the inner wall of the filter box (4).
5. A pressure grouting device for backfilling bridge and culvert abutments according to claim 4, characterized in that: A sealing ring (5) is bonded to the bottom of the box cover (41), and the sealing ring (5) is made of rubber.
6. A pressure grouting device for backfilling bridge and culvert abutments according to claim 1, characterized in that: A handle (6) is fixedly connected to the middle of the grouting pipe (18), and the handle (6) is located at one end near the hose (17).
7. A pressure grouting device for backfilling bridge and culvert abutments according to claim 1, characterized in that: Two sets of rollers (7) are fixed to the bottom of the base plate (1), and the two sets of rollers (7) are arranged symmetrically.