River area roadbed grouting reinforcing structure
The combination structure of the ring body and the round-headed rod simplifies the fixing operation of the roadbed grouting reinforcement device, realizes multiple seals and efficient sealing protection, and solves the problem of complicated operation in the existing technology.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD ENG CO LTD OF THE CCCC THIRDHIGHWAY ENG CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
The existing roadbed grouting reinforcement device requires rotating multiple nuts sequentially during the fixing operation, which makes the operation difficult and inefficient, and affects the ease of use.
The combination structure of ring body and round-headed rod is adopted. The ring body is tightly attached to the inside of the grouting hole, and the sliding of the round-headed rod and the pulling of the spring are used to lock the cylinder and achieve multiple seals, simplifying the fixing operation.
It improves the sealing effect and ease of operation of the grouting reinforcement device, enhances sealing protection, and increases work efficiency.
Smart Images

Figure CN224531418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grouting reinforcement, and in particular to a grouting reinforcement structure for roadbeds in river areas. Background Technology
[0002] A roadbed is a strip-shaped structure built according to the route location and certain technical requirements, serving as the foundation for the pavement. Alternatively, it refers to a strip-shaped structure built according to the road route location and cross-sectional requirements. It forms the basis of the pavement structure and bears the traffic load transmitted from the pavement. After prolonged use, roadbeds may develop depressions and cracks due to natural geological settlement and vehicle traffic. In such cases, roadbed grouting reinforcement structures are used to assist in repairing and strengthening the roadbed.
[0003] For example, utility model patent CN222975873U discloses a roadbed grouting reinforcement structure. In use, the grouting pipe is inserted into the drilled grouting hole, and the first sealing ring slides down to the upper section to contact the grouting hole opening, while the lower section is inserted into the grouting hole opening. Then, the nuts on each screw are gradually tightened. The nuts drive the upper and lower pressure plates to move towards the center. The upper pressure plate pushes the piston into the hydraulic cylinder, and the oil pressure pushes the spikes outward. The spikes penetrate the side wall of the grouting hole to axially position the first sealing ring. The upper pressure plate continues to press down axially onto the first sealing ring, so that the upper section of the first sealing ring is pressed against the opening of the grouting hole, while the first sealing ring expands radially. The side wall of the lower section of the first sealing ring presses against the inner wall of the grouting hole, and the inner wall of the lower section of the first sealing ring presses against the outer wall of the grouting pipe, thereby sealing the opening of the grouting hole.
[0004] However, in actual operation, multiple nuts need to be rotated in sequence to achieve the fixing operation, which increases the difficulty and reduces efficiency, causing inconvenience to users. Utility Model Content
[0005] The purpose of this invention is to provide a grouting reinforcement structure for roadbeds in river areas to solve the problems mentioned in the background art.
[0006] The technical solution adopted by this utility model is: a grouting reinforcement structure for roadbed in river areas, comprising: a roadbed body with grouting holes thereon; a cylinder one disposed in the grouting holes; a cylinder two fixedly connected to the top end of the cylinder one; a groove opened at the top of the cylinder one; a ring one threadedly connected to the groove; a cavity opened inside the cylinder one; a round-headed rod slidably connected to the cavity; a spring sleeved on the outside of the round-headed rod, one end of the round-headed rod penetrating through the cylinder one; and a ring two fixedly connected to the bottom of the cylinder one.
[0007] Optionally, both the second ring and the round-headed rod are provided with chamfers.
[0008] Optionally, the cavity, the round-headed rod, and the spring are a set, and multiple sets are provided on the cylinder.
[0009] Optionally, a cover is fixedly connected to one end of the ring.
[0010] Optionally, a sealing gasket is fixedly connected to the outer side of the second cylinder.
[0011] Optionally, an anti-slip pad is adhered to the outer side of the cover.
[0012] Optionally, the cavity depth is greater than half the length of the round-headed rod.
[0013] Optionally, the depth of the groove is greater than the height of the ring.
[0014] Optionally, the diameter of the outer side wall of the second ring is larger than the diameter of the inner side wall of the grouting hole, and the diameter of the inner side wall of the second ring is smaller than the diameter of the inner side wall of the grouting hole.
[0015] Compared with the prior art, the beneficial effects of this utility model are: In use, this application involves inserting the grouting pipe into the grouting hole, ensuring that the second ring is tightly fitted against the inner side of the grouting hole for sealing and protection. Rotating the first ring, which extends it deeper into the groove, simultaneously pushes the round-headed rod out of the cavity and inserts it into the grouting hole, thus locking the height of the first cylinder and the grouting pipe. This, combined with the tight fit between the second ring and the inner side of the grouting hole, enhances the sealing effect. Through pre-fixation and multiple sealing mechanisms, this facilitates subsequent grouting operations, improves efficiency, and solves the problem of existing grouting reinforcement devices lacking adequate adjustment capabilities. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the internal structure of cylinder one in this application; Figure 3 This is a schematic diagram of the location and structure of the cavity in this application; Figure 4 This is a schematic diagram of the split structure of the ring body one in this application.
[0018] Figure label: 10. Roadbed structure; 11. Grouting holes; 20. Cylinder body one; 21. Cylinder body two; 22. Groove; 23. Ring body one; 24. Cavity; 25. Round-headed rod; 26. Spring; 27. Ring body two; 30. Cover; 31. Sealing gasket. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0021] In current technology, the grouting pipe is inserted into the drilled grouting hole, the first sealing ring slides down to its upper section to contact the grouting hole opening, and its lower section is inserted into the grouting hole opening. Then, the nuts on each screw are gradually tightened. The nuts drive the upper and lower pressure plates to move towards the center. The upper pressure plate pushes the piston into the hydraulic cylinder, and the oil pressure pushes the spikes outward. The spikes embed themselves into the side wall of the grouting hole to axially position the first sealing ring. The upper pressure plate continues to press down axially onto the first sealing ring, causing the upper section of the first sealing ring to press tightly against the grouting hole opening. At the same time, the first sealing ring expands radially, and the lower side wall of the first sealing ring presses against the inner wall of the grouting hole, while the inner wall of the lower side wall of the first sealing ring presses against the outer wall of the grouting pipe, thereby sealing the grouting hole opening. However, in actual operation, multiple nuts need to be turned sequentially to achieve the fixing operation, increasing the difficulty and reducing efficiency, causing inconvenience to users.
[0022] like Figure 1-4As shown, this utility model embodiment provides a grouting reinforcement structure for roadbed in river areas, including: a roadbed body 10 with grouting holes 11 thereon; a first cylinder 20 disposed in the grouting holes 11; a second cylinder 21 fixedly connected to the top of the first cylinder 20; a groove 22 formed at the top of the first cylinder 20; a ring 23 threadedly connected to the groove 22; a cavity 24 formed inside the first cylinder 20; a round-headed rod 25 slidably connected inside the cavity 24; a spring 26 sleeved on the outside of the round-headed rod 25, one end of the round-headed rod 25 penetrating the first cylinder 20; and a second ring 27 fixedly connected to the bottom of the first cylinder 20.
[0023] Insert the grouting pipe into the grouting hole 11. First, make the ring 27 at the bottom of the cylinder 20 contact the inside of the grouting hole 11, then place the cylinder 20 into the grouting hole 11. After the cylinder 21 contacts the top of the roadbed body 10, rotate the ring 23. Through the threaded connection between the ring 23 and the groove 22, the ring 23 penetrates deeper into the groove 22 and contacts one end of the round-headed rod 25. Continue rotating the ring 23, causing its bottom end to push the round-headed rod 25 into the cavity 24, pulling the spring 26. Then, the outer end of the round-headed rod 25 slides out of the cavity 24 and contacts the grouting hole 11, inserting it into the grouting hole 11. This locks the height of the cylinder 20 and the grouting pipe, and, combined with the tight fit between the ring 27 and the inside of the grouting hole 11, improves the sealing effect.
[0024] Furthermore, both the second ring 27 and the round-headed rod 25 are provided with chamfers, so that before the second ring 27 contacts the grouting hole 11, the chamfers first contact the top of the grouting hole 11, and then the second ring 27 deforms and is squeezed into the grouting hole 11. By increasing friction, the second ring 27 is made to fit tightly against the inner side of the grouting hole 11, thereby improving the sealing effect. At the same time, it is convenient for the first ring 23 to push the round-headed rod 25 to slide outward.
[0025] Furthermore, the cavity 24, the round-headed rod 25, and the spring 26 are a group, and multiple groups are provided on the cylinder 20, so that multiple round-headed rods 25 can work simultaneously, thereby improving stability.
[0026] Furthermore, a cover 30 is fixedly connected to the top of the ring body 23. The cover 30 covers the inner side of the ring body 23, which has the effect of sealing and dust prevention, and also allows the staff to easily rotate the ring body 23.
[0027] Furthermore, a sealing gasket 31 is fixedly connected to the outer side of the second cylinder 21. When the first ring 23 slides downward, it drives the cover 30 to slide downward. At the same time, the first ring 23 pushes the round-headed rod 25 outward, and the cover 30 contacts the sealing gasket 31 and squeezes the sealing gasket 31. At the same time, the sealing gasket 31 is deformed and friction is increased, thereby achieving a multiple sealing effect.
[0028] Furthermore, an anti-slip pad is adhered to the outside of the cover 30, making it convenient for workers to rotate the cover 30, thereby causing the ring 23 to rotate.
[0029] Furthermore, the depth of the cavity 24 is greater than half the length of the round-headed rod 25, so that the round-headed rod 25 can slide completely into the cavity 24 for easy fixation.
[0030] Furthermore, the depth of the groove 22 is greater than the height of the ring 23, so that the ring 23 can continue to penetrate deep into the groove 22, thereby improving the fixing effect.
[0031] Furthermore, the outer diameter of the second ring 27 is larger than the inner diameter of the grouting hole 11, and the inner diameter of the second ring 27 is smaller than the inner diameter of the grouting hole 11. This allows the second ring 27 to deform through compression when it enters the grouting hole 11, thereby improving the sealing effect.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A grouting reinforcement structure for roadbed in river areas, characterized in that, include: The road body (10) has a grouting hole (11) on it; a cylinder (20) is set in the grouting hole (11); a cylinder (21) is fixedly connected to the top of the cylinder (20); a groove (22) is opened at the top of the cylinder (20); a ring (23) is threadedly connected to the groove (22); a cavity (24) is opened in the cylinder (20); a round-headed rod (25) is slidably connected in the cavity (24); a spring (26) is sleeved on the outside of the round-headed rod (25), one end of the round-headed rod (25) passes through the cylinder (20); and a ring (27) is fixedly connected to the bottom of the cylinder (20).
2. The grouting reinforcement structure for riverbeds according to claim 1, characterized in that, Both the second ring (27) and the round-headed rod (25) are chamfered.
3. The grouting reinforcement structure for roadbed in river areas according to claim 1, characterized in that, The cavity (24), the round-headed rod (25) and the spring (26) are a set, and multiple sets are provided on the cylinder (20).
4. The grouting reinforcement structure for roadbed in river areas according to claim 1, characterized in that, The top of the ring (23) is fixedly connected to the cover (30).
5. A grouting reinforcement structure for roadbed in river areas according to claim 4, characterized in that, A sealing gasket (31) is fixedly connected to the outside of the second cylinder (21).
6. The grouting reinforcement structure for roadbed in river areas according to claim 4, characterized in that, An anti-slip pad is adhered to the outside of the cover (30).
7. The grouting reinforcement structure for roadbed in river areas according to claim 1, characterized in that, The depth of the cavity (24) is greater than half the length of the round-headed rod (25).
8. The grouting reinforcement structure for roadbed in river areas according to claim 1, characterized in that, The depth of the groove (22) is greater than the height of the ring (23).
9. A grouting reinforcement structure for roadbed in river areas according to claim 1, characterized in that, The outer wall diameter of the second ring (27) is greater than the inner wall diameter of the grouting hole (11), and the inner wall diameter of the second ring (27) is smaller than the inner wall diameter of the grouting hole (11).