Novel pressure type prestress anti-floating anchor rod construction structure
By designing the injection pipe assembly and sealing assembly, the problem of uneven cement mixing during the construction of anti-buoyancy anchor bolts was solved, achieving uniform grout distribution and building stability, thus ensuring the safety of the building.
Patent Information
- Application Number
- CN202423167562.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing anti-buoyancy anchors suffer from uneven mixing of cement and admixtures during construction, resulting in incomplete grouting or insufficient grout strength, which affects the quality of the building.
The design employs a pipe injection assembly and a sealing assembly. Cement grout is injected into the inner ring pipe, while clean water or a diluent is injected into the outer ring pipe, forming a grout-water separation to ensure uniform distribution. The sealing assembly is tightly fitted to the mudstone layer through a compression spring and a sealing gasket to prevent groundwater infiltration.
It effectively prevents the grout from solidifying prematurely, ensures uniform grout distribution, improves the stability and safety of the building, and avoids problems such as incomplete grouting or insufficient strength.
Smart Images

Figure CN223497162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prestressed anti-buoyancy anchor technology, and in particular to a novel pressure-type prestressed anti-buoyancy anchor construction structure. Background Technology
[0002] In urban construction environments with complex and variable geological conditions, the buoyancy effect caused by groundwater level fluctuations is one of the risk points that must be taken into account in the design and construction of underground structures. Anti-buoyancy anchors, as an important engineering technique, are widely used in foundation reinforcement, slope protection, and other fields to resist potential buoyancy and ensure structural safety and stability.
[0003] Currently, when reinforcing existing anti-buoyancy anchors, uneven mixing of cement and admixtures can lead to incomplete grouting or insufficient grout strength, resulting in poor building quality. Therefore, a new type of pressure-type prestressed anti-buoyancy anchor construction structure has been proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a novel pressure-type prestressed anti-buoyancy anchor construction structure, which solves the problem mentioned in the background art that when existing anti-buoyancy anchors are reinforced, uneven mixing of cement and admixtures can lead to incomplete grouting or insufficient grout strength, resulting in poor building quality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel pressure-type prestressed anti-buoyancy anchor construction structure, comprising a fixing plate, a positioning frame fixedly connected inside the fixing plate, an injection pipe assembly threadedly connected inside the positioning frame, a sealing assembly on the bottom surface of the fixing plate, the injection pipe assembly comprising an outer ring pipe threadedly connected inside the positioning frame, a connecting plate fixedly connected inside the outer ring pipe, and an inner ring pipe fixedly opened and closed at one end of the connecting plate; the sealing assembly comprises several sets of compression springs disposed on the bottom surface of the fixing plate, a sealing gasket fixedly connected to one end of each set of compression springs, and a waterproof plate slidably connected to the outer side of the sealing gasket.
[0006] As a further embodiment of this utility model, the bottom surface of the fixing plate is provided with several sets of placement grooves, and several sets of compression springs are fixedly connected inside the placement grooves. The compression springs enable the sealing gasket to fit tightly against the mudstone slab.
[0007] As a further embodiment of this utility model, a mounting spring is fixedly connected to the top surface of the fixing plate, and four sets of support rods are fixedly connected to the bottom of the fixing plate. The support rods provide support for the device.
[0008] As a further embodiment of this utility model, the top surface of the mounting spring is connected to an extrusion plate, and the top surface of the extrusion plate is fixedly connected to a rotating cylinder. The rotating cylinder serves to fix the extrusion plate.
[0009] As a further embodiment of this utility model, a reinforcing ring is fixedly connected to one end of each of the four sets of support rods, and a fixing spring is fixedly connected to the top surface of the reinforcing ring. The reinforcing ring serves to connect the four sets of support rods.
[0010] As a further embodiment of this utility model, four sets of top rods are fixedly connected to the bottom surface of the reinforcing ring, and a limiting plate is fixedly connected to the bottom surface of the four sets of top rods. The top rods serve to connect the reinforcing ring and the limiting plate.
[0011] As a further embodiment of this utility model, a mounting frame is fixedly connected to the bottom surface of the limiting plate, and a guide post is fixedly connected to the bottom surface of the mounting frame. The guide post serves to guide the device.
[0012] This utility model provides a novel pressure-type prestressed anti-buoyancy anchor construction structure, which has the following beneficial effects:
[0013] 1. This novel pressure-type prestressed anti-buoyancy anchor construction structure, through the setting of the injection pipe assembly, uses a connecting plate to connect the outer ring pipe and the inner ring pipe. During pouring, cement grout is injected into the inner ring pipe, and water or other diluent is injected into the outer ring pipe, forming a "grout-water separation" phenomenon. This can effectively prevent the grout from solidifying prematurely, increase fluidity, and ensure uniform grout distribution, thereby avoiding the problems of incomplete grouting or insufficient grout strength during the reinforcement construction of the anti-buoyancy anchor.
[0014] 2. This novel pressure-type prestressed anti-buoyancy anchor construction structure, through the setting of sealing components, fixes the fixing plate to the mud layer during installation. Due to the fixation between the fixing plate and the mud layer, the mud layer exerts a certain force on the sealing gasket, causing the compression spring to be in a compressed state. The compression spring provides a reaction force, making the sealing gasket and the mud layer fit tightly together. The cooperation between the sealing gasket and the waterproof board can prevent groundwater from seeping into the surface of the foundation slab, ensuring the stability and safety of the building. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the sealing assembly structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the injection tube assembly structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the guide column structure of this utility model.
[0019] In the diagram: 1. Fixing plate; 2. Positioning frame; 3. Injection tube assembly; 301. Outer ring tube; 302. Connecting plate; 303. Inner ring tube; 4. Sealing assembly; 401. Compression spring; 402. Sealing gasket; 403. Waterproof plate; 5. Mounting spring; 6. Support rod; 7. Compression plate; 8. Rotating cylinder; 9. Reinforcing ring; 10. Fixing spring; 11. Top rod; 12. Limiting plate; 13. Mounting bracket; 14. Guide column. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a novel pressure-type prestressed anti-buoyancy anchor construction structure, including a fixed plate 1, a positioning frame 2 fixedly connected inside the fixed plate 1, and an injection pipe assembly 3 threadedly connected inside the positioning frame 2. The injection pipe assembly 3 enables cement and water to be mixed evenly. A sealing assembly 4 is provided on the bottom surface of the fixed plate 1 to prevent liquid from leaking out from the gaps. The injection pipe assembly 3 includes an outer ring pipe 301 threadedly connected inside the positioning frame 2, a connecting plate 302 fixedly connected inside the outer ring pipe 301, and an inner ring pipe 303 fixedly opened and closed at one end of the connecting plate 302. The sealing assembly 4 includes several sets of compression springs 401 provided on the bottom surface of the fixed plate 1, a sealing gasket 402 fixedly connected to one end of each set of compression springs 401, and a waterproof plate 403 slidably connected to the outside of the sealing gasket 402.
[0022] The bottom surface of the fixed plate 1 is provided with several sets of placement slots, and several sets of compression springs 401 are fixedly connected inside the placement slots. The compression springs 401 are used to make the sealing gasket 402 fit tightly against the mudstone slab.
[0023] A mounting spring 5 is fixedly connected to the top surface of the fixed plate 1, and four sets of support rods 6 are fixedly connected to the bottom of the fixed plate 1. The support rods 6 serve to support the device.
[0024] The top surface of the spring 5 is connected to the pressing plate 7, and the top surface of the pressing plate 7 is fixedly connected to the rotating cylinder 8. The rotating cylinder 8 serves to fix the pressing plate 7.
[0025] A reinforcing ring 9 is fixedly connected to one end of each of the four sets of support rods 6. A fixing spring 10 is fixedly connected to the top surface of the reinforcing ring 9. The reinforcing ring 9 serves to connect the four sets of support rods 6.
[0026] Four sets of top rods 11 are fixedly connected to the bottom surface of the reinforcing ring 9. The bottom surface of the four sets of top rods 11 is fixedly connected to the limiting plate 12. The top rods 11 serve to connect the reinforcing ring 9 and the limiting plate 12.
[0027] The bottom surface of the limiting plate 12 is fixedly connected to the mounting bracket 13, and the bottom surface of the mounting bracket 13 is fixedly connected to the guide post 14. The guide post 14 serves to guide the device.
[0028] In this invention, the working steps of the device are as follows:
[0029] First step: Connecting plate 302 is used to connect outer ring pipe 301 and inner ring pipe 303. During pouring, cement grout is injected into inner ring pipe 303 and clean water or other diluent is injected into outer ring pipe 301, forming a "grout-water separation" phenomenon, which can effectively prevent the grout from solidifying prematurely.
[0030] The second step: During installation, the fixing plate 1 is fixed to the mud layer. Since the fixing plate 1 is fixed to the mud layer, the mud layer exerts a certain force on the sealing gasket 402, which causes the compression spring 401 to be in a compressed state. The compression spring 401 provides a reaction force, which makes the sealing gasket 402 fit tightly with the mud layer. The cooperation between the sealing gasket 402 and the waterproof plate 403 can prevent groundwater from seeping into the surface of the foundation slab.
[0031] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0032] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0033] 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 novel pressure-type prestressed anti-buoyancy anchor construction structure, comprising a fixing plate (1), characterized in that: The fixing plate (1) is fixedly connected to a positioning frame (2), and the positioning frame (2) is threadedly connected to a tube injection assembly (3). The bottom surface of the fixing plate (1) is provided with a sealing assembly (4). The injection tube assembly (3) includes an outer ring tube (301) threadedly connected to the inside of the positioning frame (2), a connecting plate (302) fixedly connected inside the outer ring tube (301), and an inner ring tube (303) fixedly opened and closed at one end of the connecting plate (302). The sealing assembly (4) includes several sets of compression springs (401) disposed on the bottom surface of the fixed plate (1), one end of each set of compression springs (401) is fixedly connected to a sealing gasket (402), and a waterproof plate (403) is slidably connected to the outside of the sealing gasket (402).
2. The novel pressure-type prestressed anti-buoyancy anchor construction structure according to claim 1, characterized in that: The bottom surface of the fixing plate (1) is provided with several sets of placement slots, and several sets of compression springs (401) are fixedly connected inside the placement slots.
3. The novel pressure-type prestressed anti-buoyancy anchor construction structure according to claim 1, characterized in that: The top surface of the fixing plate (1) is fixedly connected with a mounting spring (5), and the bottom of the fixing plate (1) is fixedly connected with four sets of support rods (6).
4. The novel pressure-type prestressed anti-buoyancy anchor construction structure according to claim 3, characterized in that: The top surface of the mounting spring (5) is connected to an extrusion plate (7), and the top surface of the extrusion plate (7) is fixedly connected to a rotating cylinder (8).
5. The novel pressure-type prestressed anti-buoyancy anchor construction structure according to claim 3, characterized in that: One end of each of the four sets of support rods (6) is fixedly connected to a reinforcing ring (9), and a fixing spring (10) is fixedly connected to the top surface of the reinforcing ring (9).
6. The novel pressure-type prestressed anti-buoyancy anchor construction structure according to claim 5, characterized in that: The bottom surface of the reinforcing ring (9) is fixedly connected to four sets of top rods (11), and the bottom surface of the four sets of top rods (11) is fixedly connected to a limiting plate (12).
7. A novel pressure-type prestressed anti-buoyancy anchor construction structure according to claim 6, characterized in that: The bottom surface of the limiting plate (12) is fixedly connected to the mounting bracket (13), and the bottom surface of the mounting bracket (13) is fixedly connected to the guide post (14).