A highway subgrade anti-settling device
Patent Information
- Application Number
- CN202521961448.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-12
AI Technical Summary
[0003]本实用新型的目的在于提供一种公路路基防沉降装置,以解决上述背景技术中提出的传统的路基加固装置多采用单一的柱状结构插入路基,存在与路基结合面积小、锚固稳定性不足的问题
该公路路基防沉降装置,通过多个加固杆从安装筒四周伸出并插入路基,大幅增加了装置与路基的接触面积,圆锥状的加固杆端部更易穿透路基土层,增强了安装筒与路基的锚固效果,有效减少路基沉降风险;
Smart Images

Figure CN224663290U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of highway engineering technology, and specifically relates to a highway subgrade anti-settlement device. Background Technology
[0002] In highway engineering, the roadbed, as the foundation structure of the highway, directly affects the service life and driving safety of the highway. However, due to factors such as geological conditions (e.g., soft soil foundation, uneven soil layers), load effects (e.g., repeated vehicle compaction), and natural environment (e.g., rainwater infiltration, temperature changes), roadbeds are prone to settlement. Traditional roadbed reinforcement devices often use a single columnar structure inserted into the roadbed, which has problems such as a small contact area with the roadbed and insufficient anchoring stability. After long-term use, the reinforcement effect is easily reduced due to changes in roadbed soil pressure, making it difficult to effectively suppress settlement. Utility Model Content
[0003] The purpose of this utility model is to provide a roadbed anti-settlement device to solve the problems mentioned in the background art, which are that traditional roadbed reinforcement devices mostly use a single column structure inserted into the roadbed, resulting in a small bonding area with the roadbed and insufficient anchoring stability.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a highway subgrade anti-settlement device, comprising an installation cylinder and a pointed end fixed to the bottom of the installation cylinder. Multiple fixed sleeves are fixed to the inner wall of the installation cylinder. A movable groove is provided on the fixed sleeve, and a reinforcing rod is movably connected within the movable groove. One end of the reinforcing rod has a conical structure. A push block is movably connected within the installation cylinder, and a guide groove is provided at the top of the installation cylinder. A connecting rod fixedly connected to the push block is movably connected within the guide groove. A support plate is fixed to the surface of the connecting rod. Multiple limiting holes are provided at the top of the installation cylinder, and limiting posts fixedly connected to the support plate are movably connected within the limiting holes.
[0005] In a further embodiment, a fixing ring is fixed to the outer wall of the reinforcing rod, and a support spring for supporting the fixing ring is sleeved on the outside of the reinforcing rod.
[0006] In a further embodiment, the outer wall of the limiting post is provided with a threaded groove, and a positioning ring is externally threaded to the threaded groove on the outer wall of the limiting post, and a limiting block is fixed at the bottom of the limiting post.
[0007] In a further embodiment, two threaded holes are provided at corresponding positions of the mounting cylinder and the support plate, and fixing bolts are threaded into the threaded holes.
[0008] In a further embodiment, the surface of the support plate is provided with a plurality of mounting grooves, and the support plate below the mounting grooves is also provided with threaded holes.
[0009] In a further embodiment, the lower half of the push block has a conical structure, and the surface of the reinforcing rod is provided with an inclined surface.
[0010] The technical effects and advantages of this utility model are as follows: This roadbed anti-settlement device uses multiple reinforcing rods that extend from the four sides of the mounting cylinder and insert into the roadbed, which greatly increases the contact area between the device and the roadbed. The conical ends of the reinforcing rods can penetrate the roadbed soil layer more easily, enhancing the anchoring effect between the mounting cylinder and the roadbed and effectively reducing the risk of roadbed settlement. The combination of the limiting post and the positioning ring can fix the position of the support plate in the early stage of installation, making it easy to quickly drive the installation cylinder into the roadbed with the pointed end. The fixing bolts can firmly lock the position of the support plate and prevent the reinforcement rod from retracting. The installation groove and threaded hole of the support plate can facilitate the quick connection of multiple devices to form an integrated reinforcement system, which can adapt to the roadbed reinforcement needs of different ranges. This highway roadbed anti-settlement device increases the stability between the installation cylinder and the roadbed and improves the reinforcement effect of the roadbed, thereby achieving the effect of roadbed anti-settlement. Attached Figure Description
[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the mounting cylinder of this utility model; Figure 3 This is a cross-sectional view of the mounting cylinder of this utility model; Figure 4 This is a schematic diagram of the limiting post and positioning ring of this utility model.
[0013] In the diagram: 1. Mounting cylinder; 2. Pointed end; 3. Fixing sleeve; 4. Reinforcing rod; 5. Fixing ring; 6. Support spring; 7. Push block; 8. Connecting rod; 9. Support plate; 10. Limiting post; 11. Limiting block; 12. Positioning ring; 13. Fixing bolt. Detailed Implementation
[0014] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0015] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.
[0016] This utility model provides, for example Figure 1-4 The highway subgrade anti-settlement device shown includes an installation cylinder 1 and a pointed head 2 fixed to the bottom of the installation cylinder 1. Multiple fixed sleeves 3 are fixed to the inner wall of the installation cylinder 1. The fixed sleeves 3 are provided with movable grooves, and a reinforcing rod 4 is movably connected in the movable grooves. The reinforcing rod 4 has a cuboid structure and one end of the reinforcing rod 4 has a conical structure. Multiple through holes for the reinforcing rod 4 to move are provided on the outer wall of the installation cylinder 1. A fixing ring 5 is fixed to the outer wall of the reinforcing rod 4, and a support spring 6 for supporting the fixing ring 5 is sleeved on the outside of the reinforcing rod 4. The support spring 6 can support the fixing ring 5, so that the reinforcing rod 4 is always inside the installation cylinder 1 when no external force is applied, which makes it more convenient to transport. A push block 7 is movably connected inside the mounting cylinder 1, and a guide groove is provided at the top of the mounting cylinder 1. A connecting rod 8, which is fixedly connected to the push block 7, is movably connected inside the guide groove. A support plate 9 is fixed to the surface of the connecting rod 8. The lower half of the push block 7 has a conical structure, and the surface of the reinforcing rod 4 is provided with an inclined surface to facilitate the movement of the push block 7 between multiple reinforcing rods 4. By applying pressure to the support plate 9, the connecting rod 8 and the push block 7 are driven to move downward, thereby pushing the push block 7 between multiple reinforcing rods 4, pushing the reinforcing rod 4 out of the mounting cylinder 1, and inserting the reinforcing rod 4 into the roadbed, increasing the contact area with the roadbed, and increasing the stability between the mounting cylinder 1 and the roadbed, thus ensuring the reinforcement effect. The top of the mounting cylinder 1 has multiple limiting holes, and limiting posts 10, which are fixedly connected to the support plate 9, are movably connected to the limiting holes. The outer wall of the limiting post 10 has a threaded groove, and a positioning ring 12 is threaded onto the external thread of the threaded groove of the outer wall of the limiting post 10. A limiting block 11 is fixed to the bottom of the limiting post 10. By screwing the positioning ring 12 onto the threaded groove of the limiting post 10, the position of the limiting post 10 and the support plate 9 can be restricted. When pressure is applied to the support plate 9, it is prevented from moving, and the mounting cylinder 1 can be quickly driven into the roadbed. After the mounting cylinder 1 is completely inserted into the roadbed... Rotating the positioning ring 12 separates it from the threaded groove of the limiting post 10, which pushes the support plate 9 down. The mounting cylinder 1 and the support plate 9 have two threaded holes at corresponding positions, and the threaded holes are connected to the fixing bolts 13. Screwing the fixing bolts 13 into the threaded holes of the mounting cylinder 1 and the support plate 9 fixes the position of the support plate 9. The surface of the support plate 9 has multiple mounting grooves, and the support plate 9 below the mounting grooves also has threaded holes. External fixing rods can be placed in the mounting grooves and fixed with bolts, which can quickly complete the connection between multiple devices.
[0017] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0018] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is 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, and therefore should not be construed as a limitation of this utility model.
[0019] Working principle: When using this roadbed anti-settlement device, the device is first driven into the roadbed through the pointed end 2 at the bottom of the installation cylinder 1. At this time, the positioning ring 12 on the limiting post 10 is tightened and fixed, restricting the downward movement of the support plate 9 and ensuring that the reinforcing rod 4 is temporarily inside the installation cylinder 1. After the installation cylinder 1 is in place, the positioning ring 12 is loosened, and the support plate 9 is pressed down, which drives the connecting rod 8 and the push block 7 to descend along the inside of the installation cylinder 1. The conical structure of the lower half of the push block 7 squeezes the inclined surface of the reinforcing rod 4, forcing the reinforcing rod 4 to extend outward along the moving groove of the fixed sleeve 3 and insert into the surrounding roadbed soil layer. When the reinforcing rod 4 extends to the preset position, the support plate 9 and the installation cylinder 1 are locked by the fixing bolt 13 to prevent the push block 7 from resetting. If it is necessary to expand the reinforcement range, the external fixing rod can be placed in the installation groove of the support plate 9 and multiple devices can be connected through the threaded holes to form an overall reinforcement structure. This enhances the stability and reinforcement effect of the installation cylinder 1 and the roadbed, thereby achieving the purpose of preventing roadbed settlement.
[0020] 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 roadbed anti-settlement device, comprising an installation cylinder (1) and a pointed end (2) fixed to the bottom of the installation cylinder (1), characterized in that: The inner wall of the mounting cylinder (1) is fixed with multiple fixed sleeves (3). The fixed sleeves (3) are provided with a moving groove, and a reinforcing rod (4) is movably connected in the moving groove. One end of the reinforcing rod (4) is a conical structure. A push block (7) is movably connected in the mounting cylinder (1). A guide groove is provided at the top of the mounting cylinder (1). A connecting rod (8) fixedly connected to the push block (7) is movably connected in the guide groove. A support plate (9) is fixed on the surface of the connecting rod (8). Multiple limiting holes are provided at the top of the mounting cylinder (1). A limiting post (10) fixedly connected to the support plate (9) is movably connected in the limiting holes.
2. The roadbed anti-settlement device according to claim 1, characterized in that: The outer wall of the reinforcing rod (4) is fixed with a fixing ring (5), and a support spring (6) for supporting the fixing ring (5) is sleeved on the outside of the reinforcing rod (4).
3. A highway subgrade anti-settlement device according to claim 1, characterized in that: The outer wall of the limiting post (10) is provided with a threaded groove, and the threaded groove on the outer wall of the limiting post (10) is connected to a positioning ring (12) by an external thread. The bottom of the limiting post (10) is fixed with a limiting block (11).
4. A highway subgrade anti-settlement device according to claim 1, characterized in that: The mounting cylinder (1) and the support plate (9) have two threaded holes at corresponding positions, and the threaded holes are connected to fixing bolts (13).
5. A highway subgrade anti-settlement device according to claim 4, characterized in that: The surface of the support plate (9) is provided with multiple mounting grooves, and the support plate (9) below the mounting grooves is also provided with threaded holes.
6. A highway subgrade anti-settlement device according to claim 1, characterized in that: The lower half of the push block (7) is a conical structure, and the surface of the reinforcing rod (4) is provided with an inclined surface.