Water-rich rock stratum weakening and grouting auxiliary device
By designing the clamping plate and connecting rod structure of the grouting connection pipe, the problems of slow disassembly and loosening risk of existing grouting pipe connection methods as the depth increases are solved, achieving fast and stable connection and preventing grout leakage and cross-contamination.
Patent Information
- Application Number
- CN202520271763.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-20
AI Technical Summary
With increasing depth, existing grouting pipe connection methods suffer from slow disassembly and assembly speeds for flange connections and easy loosening of threaded connections, leading to risks of grout leakage and cross-contamination.
A grouting connection pipe was designed, which adopts a clamping plate and connecting rod structure. The clamping plate restricts the flange ring to achieve fixation, and the sealing ring prevents grout leakage. The restriction can be quickly released by the square plate without the need for external tools.
It enables rapid assembly and disassembly, ensures connection stability, avoids pulp cross-contamination and leakage problems, and improves operational efficiency and safety.
Smart Images
Figure CN223661861U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to grouting pipe technology, concretely is a kind of for water-rich rock layer weakening and grouting auxiliary device. BACKGROUND
[0002] With the rapid development of highway construction, tunnel construction in water-rich karst area is also more and more common. The surrounding rock in water-rich karst area is seriously weathered and softened by water, and has poor stability. Joint fissure development is easy to cause plastic deformation and rheology, which seriously affects normal construction and safety of the tunnel. In recent years, with the strengthening of the concept of sustainable development and people's awareness of environmental protection, the concept of tunnel water control has also changed from "mainly drainage combined with blocking" to "mainly blocking combined with prevention", and the tunnel full-face curtain grouting technology has been rapidly promoted and applied.
[0003] The existing grouting pipe is used to guide the grouting liquid into the rock layer during grouting of water-rich rock layer. Since the drilling depth is deep, a connecting pipe is often installed on the grouting pipe to increase the grouting depth. The existing connecting pipe connection mode is mainly flange connection or threaded connection. Since multiple connecting pipes are needed for connection as the depth increases, the flange connection has good stability during disassembly and assembly, but the speed is too slow and the assembly efficiency is low. The threaded connection has lower design cost and is relatively fast during disassembly and assembly compared with the flange connection. However, after multiple connecting pipes are assembled together, rotating the upper connecting pipe to realize disassembly and assembly operation can easily cause the lower connecting pipe to rotate and loosen, which may cause the risk of grouting and grouting. Therefore, we propose a water-rich rock layer weakening and grouting auxiliary device to solve the above problems. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies of the prior art, the utility model provides a water-rich rock layer weakening and grouting auxiliary device to solve the problems in the above background art.
[0005] The purpose of the utility model can be realized by the following technical solutions: a grouting connecting pipe is provided, a flange ring is fixedly connected to the bottom of the grouting connecting pipe, and an outer sleeve is fixedly connected to the top outer side of the grouting connecting pipe.
[0006] A connecting assembly includes a connecting ring fixedly connected inside an outer sleeve. The connecting ring has protrusions distributed in a circular pattern inside. A vertical plate is symmetrically arranged on the top of each protrusion. A sliding groove is symmetrically formed on the top of each protrusion and within adjacent vertical plates. A common retaining plate is slidably connected between two adjacent sliding grooves. A circular hole is formed inside the connecting ring, and a connecting rod is slidably connected within the hole. One end of the connecting rod is rotatably connected to the adjacent side of an adjacent retaining plate. A thickened layer is provided on the outer side of the connecting rod. A square plate is fixedly connected to one end of the connecting rod. Springs are symmetrically arranged on one side of the retaining plate, and both ends of the springs are fixedly connected to the adjacent retaining plate and the inner wall of the connecting ring, respectively.
[0007] Preferably, a sealing ring is provided between the outer sleeve and the adjacent connecting ring, and the sealing ring has a T-shaped cross-section.
[0008] Preferably, a positioning protrusion is fixedly connected to the upper outer side of the grouting connection pipe.
[0009] Preferably, the outer side of the connecting ring has grooves that are distributed in a circular pattern.
[0010] Preferably, the top view section of the flange ring is adapted to the inner contour of the connecting ring, and the thickness of the flange ring is the same as the bottom thickness of the connecting ring.
[0011] Preferably, the cross-section of the side of the card plate away from the connecting rod is an arc surface.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] By using the set connection components, the flange ring can be fixed by the clamping plate, and the sealing ring can prevent the possible cross-flow and leakage of grout. At the same time, the flange ring can be released by pulling out multiple square plates during disassembly and assembly. No external tools are required, the operation speed is fast, and the assembly efficiency and post-assembly stability are both taken into account. Attached Figure Description
[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0015] Figure 1 It is a three-dimensional cross-sectional view of the structure of two grouting connection pipes.
[0016] Figure 2 This is an enlarged three-dimensional structural diagram of the connecting ring in this utility model;
[0017] Figure 3 yes Figure 1 An enlarged schematic diagram of part A is shown below;
[0018] Figure 4 yesFigure 1 The enlarged schematic diagram of part B is shown.
[0019] In the diagram: 1. Grouting connection pipe; 2. Flange ring; 3. Outer sleeve; 4. Connecting ring; 5. Protrusion; 6. Vertical plate; 7. Slide groove; 8. Clamping plate; 9. Round hole; 10. Connecting rod; 11. Thickened layer; 12. Square plate; 13. Spring; 14. Sealing ring; 15. Positioning protrusion ring; 16. Groove. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] Please see Figure 1 - Figure 4 As shown, a device for weakening water-rich rock strata and grouting auxiliary includes a grouting connecting pipe 1, a flange ring 2 fixedly connected to the bottom of the grouting connecting pipe 1, and an outer sleeve 3 fixedly connected to the top outer side of the grouting connecting pipe 1. The flange ring 2 is used to insert into the grouting connecting pipe 1, and the outer sleeve 3 is used to facilitate the separation of the connecting components from the grouting connecting pipe 1 and to assemble them when needed.
[0022] The connecting assembly includes a connecting ring 4 fixedly connected inside the outer sleeve 3. The connecting ring 4 has protrusions 5 arranged in a circular pattern inside. A vertical plate 6 is symmetrically arranged on the top of each protrusion 5. A sliding groove 7 is symmetrically opened on the top of each protrusion 5 and within the adjacent vertical plate 6. A common retaining plate 8 is slidably connected between two adjacent sliding grooves 7. A circular hole 9 is opened inside the connecting ring 4. A connecting rod 10 is slidably connected within the circular hole 9. One end of the connecting rod 10 is rotatably connected to the adjacent side of the adjacent retaining plate 8. A thickened layer 11 is provided covering the outside of the connecting rod 10. A square plate 12 is fixedly connected to one end of the connecting rod 10. Springs 13 are symmetrically arranged on one side of the retaining plate 8. The two ends of the springs 13 are fixedly connected to the adjacent retaining plate 8 and the inner wall of the connecting ring 4, respectively.
[0023] It should be noted that the protrusion 5 is used to support the clamping plate 8, the upright plate 6 is used to limit the clamping plate 8, the sliding groove 7 is used to guide the clamping plate 8, the round hole 9 is used to allow the connecting rod 10 to pass through, the thickened layer 11 can increase the friction force on the connecting rod 10 when passing through the round hole 9, the square plate 12 can easily pull the connecting rod 10, and the spring 13 can make the clamping plate 8 always tend to move closer to the axis of the grouting connecting pipe 1. Through the set connecting components, the clamping plate 8 can restrict the flange ring 2 to fix the two adjacent grouting connecting pipes 1 together, and the sealing ring 14 can prevent possible grout leakage and grouting problems. At the same time, during disassembly and assembly, pulling out multiple square plates 12 can release the restriction on the flange ring 2. No external tools are required, the operation speed is fast, and the assembly efficiency and post-assembly stability are taken into account.
[0024] A sealing ring 14 is provided between the outer sleeve 3 and the adjacent connecting ring 4. The sealing ring 14 has a T-shaped cross section. The T-shaped sealing ring 14 can easily seal the connection between the two grouting connecting pipes 1 and prevent grout leakage.
[0025] A positioning protrusion ring 15 is fixedly connected to the upper outer side of the grouting connection pipe 1. The positioning protrusion ring 15 is used to position the outer sleeve 3 on the grouting connection pipe 1 to facilitate assembly.
[0026] The outer side of the connecting ring 4 has a groove 16, which is circularly distributed. The area of the groove 16 is larger than the area of the square plate 12, which makes it easy to insert fingers into the groove 16 and pull the square plate 12 outward, making it convenient to operate and use.
[0027] The top view of the flange ring 2 is adapted to the inner contour of the connecting ring 4. The thickness of the flange ring 2 is the same as the bottom thickness of the connecting ring 4. The flange ring 2 is used to position the inserted grouting connecting pipe 1, which facilitates the connection of two grouting connecting pipes 1.
[0028] The side of the clamping plate 8 away from the connecting rod 10 has an arc surface. The arc surface can increase the contact area between the clamping plate 8 and the grouting connecting pipe 1, which can ensure a tight connection when they are in contact.
[0029] In the specific implementation of this utility model: when it is necessary to assemble the grouting connecting pipe 1, align the side of the new grouting connecting pipe 1 with the flange ring 2 above the already inserted grouting connecting pipe 1, and move it downwards. At the same time, pull the square plate 12 on the already inserted grouting connecting pipe 1 outwards by hand, so that it drives the clamping plate 8 to slide into the receiving protrusion 5 through the connecting rod 10, until the thickened layer 11 on the connecting rod 10 is embedded in the round hole 9, making it difficult for the connecting rod 10 to return to its original position. At this time, align the grooves on the flange ring 2 and the connecting ring 4 so that their surfaces contact and fit together. Then push the square plate 12 back to its original position one by one, so that the thickened layer 11 is disengaged from the round hole 9, and the clamping plate 8 returns to its original position under the elastic force of the spring 13, so that the clamping plate 8 rests against the flange ring 2, completing the assembly.
[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A device for weakening water-rich rock strata and assisting in grouting, characterized in that, include: Grouting connection pipe (1), the bottom of the grouting connection pipe (1) is fixedly connected to a flange ring (2), and the top outer side of the grouting connection pipe (1) is fixedly connected to an outer sleeve (3); The connecting assembly includes a connecting ring (4) fixedly connected inside the outer sleeve (3). The connecting ring (4) has protrusions (5) arranged in a circle. The top of the protrusions (5) is symmetrically provided with upright plates (6). The top of the protrusions (5) and adjacent upright plates (6) are symmetrically provided with sliding grooves (7). The same card plate (8) is slidably connected between two adjacent sliding grooves (7). The connecting ring (4) has a circular hole (9) arranged in a circle. A connecting rod (10) is slidably connected in the circular hole (9). One end of the connecting rod (10) is rotatably connected to the adjacent side of the adjacent card plate (8). The outside of the connecting rod (10) is covered with a thickened layer (11). One end of the connecting rod (10) is fixedly connected with a square plate (12). A spring (13) is symmetrically provided on one side of the card plate (8). The two ends of the spring (13) are fixedly connected to the inner wall of the adjacent card plate (8) and the connecting ring (4), respectively.
2. The device for weakening water-rich rock strata and assisting grouting according to claim 1, characterized in that, A sealing ring (14) is provided between the outer sleeve (3) and the adjacent connecting ring (4), and the cross section of the sealing ring (14) is T-shaped.
3. The device for weakening water-rich rock strata and assisting grouting according to claim 2, characterized in that, A positioning protrusion ring (15) is fixedly connected to the upper outer side of the grouting connection pipe (1).
4. The device for weakening water-rich rock strata and assisting grouting according to claim 3, characterized in that, The outer side of the connecting ring (4) has grooves (16) that are distributed in a circular pattern.
5. The device for weakening water-rich rock strata and assisting grouting according to claim 4, characterized in that, The top view section of the flange ring (2) is adapted to the inner contour of the connecting ring (4), and the thickness of the flange ring (2) is the same as the bottom thickness of the connecting ring (4).
6. The device for weakening water-rich rock strata and assisting grouting according to claim 5, characterized in that, The cross-section of the side of the card plate (8) away from the connecting rod (10) is an arc surface.