Detachable grouting assembly

Abstract

The utility model relates to a detachable grouting assembly, and belongs to the technical field of concrete structure leakage treatment, the detachable grouting assembly comprises a first grouting pipe, a second grouting pipe and a third grouting pipe, the first grouting pipe is provided with a connector connected with a grouting pump, the first grouting pipe is detachably connected with the second grouting pipe, and the third grouting pipe is detachably connected with the second grouting pipe; the second grouting pipe is in threaded connection with the third grouting pipe, an expansion part is arranged on the third grouting pipe, an abutting part is installed at the end, away from the second grouting pipe, of the third grouting pipe, the second grouting pipe and the abutting part can jointly press the expansion part, and a one-way valve is arranged in the second grouting pipe. The grouting assembly has the advantages that the first grouting pipe can be reused, the expansion piece does not shrink after the first grouting pipe is dismantled, the situation that grout overflows when the end of the grouting assembly is dismantled is reduced, and the problems that a traditional grouting needle and an exposed part cannot be reused after being dismantled, the exposed part compresses the expansion piece to shrink after being dismantled, the grout overflows, and the grouting quality is affected are solved. The risk of re-leakage and resource waste are avoided, and the waterproof repairing effect is improved.

Description

Technical Field

[0001] This application relates to the field of concrete structure leakage treatment technology, and in particular to a detachable grouting assembly. Background Technology

[0002] Grouting technology plays a crucial role in underground structure seepage prevention, structural crack repair, foundation pit reinforcement, ground settlement prevention, foundation treatment of existing structures, and friction-reducing pipe jacking. Especially in underground structure seepage prevention, when localized leakage occurs, grouting components are typically implanted into the substrate at the leakage point. The grouting port of the grouting component is pre-installed on the outside of the substrate. During grouting, the grouting pump's grouting pipe is connected to the grouting port of the grouting component for grouting. After grouting is completed, the connection between the grouting pipe and the grouting port is disconnected. After the grout has solidified, the portion of the grouting component extending beyond the building structure needs to be broken off or removed to maintain a smooth substrate surface.

[0003] The existing grouting components have the following problems: during the process of breaking or cutting, the grouting components as a whole usually vibrate, which may cause secondary damage to the building structure, leaving tiny pores or cracks, which may lead to leakage again in the long term.

[0004] Moreover, when the end of the grouting component is cut off, the residual pressure inside the grouting component or the pressure of the grout in the building structure will flow out from the grouting component, resulting in incomplete grouting, reducing the quality of leakage repair, and even causing leakage again.

[0005] Meanwhile, if the grouting effect is found to be unsatisfactory or secondary grouting is required, the original grouting port has been cut off or destroyed, and new grouting components are injected again for grouting, resulting in material waste. Furthermore, injecting multiple grouting components may also damage the building structure. Summary of the Invention

[0006] In order to enable the reusability of the grouting component end and reduce the leakage of grout when the grouting component end is removed, thereby improving the waterproof repair effect, this application provides a detachable grouting component.

[0007] This application provides a detachable grouting assembly, which is derived from the following technical solution:

[0008] A detachable grouting assembly includes a first grouting pipe, a second grouting pipe, and a third grouting pipe. The first grouting pipe is provided with a connector for connecting to a grouting pump. The first grouting pipe is detachably connected to the second grouting pipe. The second grouting pipe is threadedly connected to the third grouting pipe. An expansion member is provided on the third grouting pipe. An abutment is installed at the end of the third grouting pipe away from the second grouting pipe. The second grouting pipe and the abutment can jointly press the expansion member. A one-way valve is provided inside the second grouting pipe.

[0009] Through the above technical solution, during grouting, the first grouting pipe and the second grouting pipe are connected, the second grouting pipe and the third grouting pipe are connected, the second grouting pipe and the third grouting pipe are driven into the structure, and the second grouting pipe is tightened to make the expansion component expand and press tightly against the inner wall of the building structure. The grouting pump is connected to the connector, and the grout is discharged from the first grouting pipe, the second grouting pipe and the third grouting pipe in sequence and injected into the building structure.

[0010] After grouting is completed, wait for the grout to solidify, then unscrew the first grouting pipe to complete the grouting operation. The detachable design allows the first grouting pipe to be reused. If secondary repairs are needed, the first grouting pipe can be directly installed on the second grouting pipe for grouting without the need to install new grouting components, saving materials and reducing damage to the building structure. Furthermore, it eliminates the need for breaking or cutting, reducing the risk of secondary leakage due to secondary damage to the building structure.

[0011] Furthermore, the one-way valve is located inside the second grouting pipe. After the first grouting pipe is disassembled, the grout inside the building structure will not overflow from the second grouting pipe, ensuring that the grouting inside the building structure is dense and improving the waterproofing repair effect.

[0012] Optionally, the diameter of the end of the first grouting pipe away from the connector is smaller than the diameter of the end of the first grouting pipe near the connector. The end of the first grouting pipe away from the connector is provided with a first external thread, and the end of the second connecting pipe near the first grouting pipe is provided with a first internal thread. The first grouting pipe and the second grouting pipe are threadedly connected.

[0013] Through the above technical solution, the design of the first external thread and the first internal thread realizes the threaded connection between the first grouting pipe and the second grouting pipe. At the same time, it facilitates disassembly and improves the flexibility of construction.

[0014] Optionally, the second grouting pipe has a first channel, a second channel, and a third channel. The first channel is connected to the second channel, and the second channel is connected to the third channel. The diameter of the second channel near the first channel is smaller than the diameter of the second channel near the third channel. The one-way valve is located in the first channel and the second channel.

[0015] Through the above technical solution, this design ensures effective control of the grout flow direction during grouting by varying the channel diameter and arranging one-way valves. By setting a reasonable channel diameter difference, the fluid velocity can be controlled, the grouting effect optimized, and backflow of the grout prevented.

[0016] Optionally, the one-way valve includes a mounting ring fixed in the first channel, the mounting ring being connected to a spring, the spring being connected to a sealing ball, and the sealing ball being able to abut against the end of the second channel near the first channel.

[0017] Through the above technical solution, this one-way valve structure uses a spring and a sealing ball to control the one-way flow of fluid. When the pressure is insufficient or reverse pressure occurs, the sealing ball will quickly contact the second channel to close the channel and prevent the grout from flowing back, thereby ensuring that the grout in the building structure will not flow back into the second grouting pipe.

[0018] Optionally, the second channel is a frustum-shaped channel.

[0019] Through the above technical solution, the truncated cone channel design makes the second channel fit more closely with the sealing ball, further enhancing the sealing performance and leak-proof effect of the one-way valve and preventing slurry backflow.

[0020] Optionally, the outer diameter of the third grouting pipe is smaller than the inner diameter of the second grouting pipe, the second grouting pipe is provided with a second internal thread at one end near the third grouting pipe, and the third grouting pipe is provided with a second external thread at one end away from the abutment portion, and the second grouting pipe is threadedly connected to the third grouting pipe.

[0021] Optionally, the expansion member includes an annular gasket and a rubber sleeve, both of which are fitted onto the third grouting pipe, and the second grouting pipe abuts against the annular gasket.

[0022] The above technical solution involves rotating the first grouting pipe to drive the second grouting pipe, causing it to press against the annular gasket. The rubber sleeve expands under the pressure of the annular gasket and the contact area, pressing firmly against the building structure. This ensures a secure connection between the third and second grouting pipes, preventing loosening or leakage during grouting. The flexibility of the rubber sleeve also allows it to adapt to holes of different shapes, enhancing its adaptability.

[0023] Optionally, there are at least two annular gaskets and two rubber sleeves, and the annular gaskets and rubber sleeves are alternately fitted on the third grouting pipe.

[0024] Optionally, a sealing sleeve is also included, the sealing sleeve being provided with a third external thread, the sealing sleeve being threaded to the end of the second grouting pipe away from the third grouting pipe.

[0025] The above technical solution is designed to seal the grout after grouting is completed, preventing grout leakage or further seepage and maintaining a smooth and aesthetically pleasing exterior finish.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. After grouting is completed, wait for the grout to solidify, then unscrew the first grouting pipe to complete the grouting operation. The detachable design allows the first grouting pipe to be reused. If secondary repairs are needed, the first grouting pipe can be directly installed on the second grouting pipe for grouting without the need to install new grouting components, saving materials and reducing damage to the building structure. Furthermore, it eliminates the need for breaking or cutting, reducing the risk of secondary leakage due to secondary damage to the building structure.

[0028] 2. The one-way valve is located inside the second grouting pipe. After the first grouting pipe is disassembled, the grout inside the building structure will not overflow from the second grouting pipe, ensuring that the grouting inside the building structure is dense and improving the waterproofing repair effect.

[0029] 3. The sealing sleeve is designed to seal the surface after grouting to prevent grout leakage or further seepage and to keep the exterior finish smooth and aesthetically pleasing;

[0030] 4. The reusable first grouting pipe is more in line with green construction, saves energy and reduces emissions, saves materials and reduces carbon emissions. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 This is a schematic diagram illustrating the structure of the one-way valve and the third grouting pipe in an embodiment of this application.

[0033] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0034] Figure 4 This is a schematic diagram illustrating the structure of the sealing sleeve in an embodiment of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. First grouting pipe; 11. Connector; 12. First external thread; 2. Second grouting pipe; 21. First channel; 22. Second channel; 23. Third channel; 24. Fourth channel; 25. First internal thread; 26. Second internal thread; 3. Third grouting pipe; 31. Second external thread; 32. Abutment part; 4. Expansion part; 41. Annular gasket; 42. Rubber sleeve; 5. One-way valve; 51. Mounting ring; 52. Spring; 53. Sealing ball; 6. Sealing sleeve; 61. Third external thread. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0037] This application discloses a detachable grouting assembly.

[0038] like Figure 1 and Figure 2 The detachable grouting assembly includes a first grouting pipe 1, a second grouting pipe 2 and a third grouting pipe 3. One end of the first grouting pipe 1 is integrally formed with a connector 11 that is connected to the grouting pump. The outer diameter of the first grouting pipe 1 at the end away from the connector 11 is smaller than the outer diameter of the first grouting pipe 1 near the connector 11. The first grouting pipe 1 at the end away from the connector 11 is provided with a first external thread 12.

[0039] The second grouting pipe 2 has three channels: a first channel 21, a second channel 22, and a third channel 23. Channels 21 and 23 are cylindrical, while channel 22 is a frustoconical channel. Channels 21 and 23 have the same inner diameter. The diameter of the second channel 22 near the first channel 21 is smaller than the diameter near the third channel 23. Channels 21 and 22 connect, as do the other two channels. A fourth channel 24 is also provided at the end of the second grouting pipe 2 furthest from the first grouting pipe 1, and this fourth channel 24 connects to the third channel 23. The inner wall of the first channel 21 has a first internal thread 25, which engages with a first external thread 12 to thread the first grouting pipe 1 and the second grouting pipe 2.

[0040] like Figure 2 and Figure 3 The outer diameter of the third grouting pipe 3 is smaller than the inner diameter of the second grouting pipe 2. The inner wall of the fourth channel 24 is provided with a second internal thread 26, and one end of the third grouting pipe 3 is provided with a second external thread 31. The second internal thread 26 and the second external thread 31 cooperate to thread the second grouting pipe 2 and the third grouting pipe 3 together. An expansion member 4 is provided on the third grouting pipe 3, and an abutment portion 32, which is an annular disc, is provided at the end of the third grouting pipe 3 furthest from the second grouting pipe 2. The first grouting pipe 1, the second grouting pipe 2, and the third grouting pipe 3 are connected.

[0041] A one-way valve 5 is installed in both the second channel 22 and the first channel 21. The one-way valve 5 includes a mounting ring 51, which is welded and fixed in the first channel 21. A spring 52 is connected to the mounting ring 51, and a sealing ball 53 is connected to the spring 52. The sealing ball 53 can abut against the end of the second channel 22 near the first channel 21.

[0042] The expansion member 4 includes two annular gaskets 41 and two rubber sleeves 42. The annular gaskets 41 and rubber sleeves 42 are alternately sleeved on the third grouting pipe 3. One of the annular gaskets 41 abuts against the end face of the second grouting pipe 2, and one of the rubber sleeves 42 abuts against the abutting part 32.

[0043] like Figure 4 The detachable grouting assembly also includes a sealing sleeve 6, which is provided with a third external thread 61. The third external thread 61 can cooperate with the first internal thread 25. After the first grouting pipe 1 is separated from the second grouting pipe 2, the sealing sleeve 6 can be threadedly connected to the end of the second grouting pipe 2 away from the third grouting pipe 3.

[0044] During grouting, the first grouting pipe 1 and the second grouting pipe 2 are connected, and the second grouting pipe 2 and the third grouting pipe 3 are connected. The second grouting pipe 2 and the third grouting pipe are driven into the structure, and the second grouting pipe 2 is tightened to make the expansion member 4 expand and press tightly against the inner wall of the building structure. The grouting pump is connected to the connector 11, and the grout is discharged from the first grouting pipe 1, the second grouting pipe 2 and the third grouting pipe 3 in sequence and injected into the building structure.

[0045] After grouting is completed, wait for the grout to solidify, then unscrew the first grouting pipe 1 and screw on the sealing sleeve 6 to complete the grouting operation.

[0046] The detachable design allows the first grouting pipe 1 to be reused. If secondary repairs are needed, the first grouting pipe 1 can be directly installed on the second grouting pipe 2 for grouting without the need to install new grouting components, saving materials and reducing damage to the building structure. Furthermore, it eliminates the need for breaking or cutting, reducing the risk of secondary damage and leakage.

[0047] Furthermore, the one-way valve 5 is located inside the second grouting pipe 2. After the first grouting pipe 1 is disassembled, the grout inside the building structure will not overflow from the second grouting pipe 2, ensuring that the grouting inside the building structure is dense and improving the waterproofing repair effect.

[0048] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A detachable grouting assembly, characterized in that: The system includes a first grouting pipe (1), a second grouting pipe (2), and a third grouting pipe (3). The first grouting pipe (1) is provided with a connector (11) for connecting to a grouting pump. The first grouting pipe (1) and the second grouting pipe (2) are detachably connected. The second grouting pipe (2) and the third grouting pipe (3) are threadedly connected. The third grouting pipe (3) is provided with an expansion member (4). An abutment part (32) is installed at the end of the third grouting pipe (3) away from the second grouting pipe (2). The second grouting pipe (2) and the abutment part (32) can jointly press the expansion member (4). A one-way valve (5) is provided inside the second grouting pipe (2).

2. The detachable grouting assembly according to claim 1, characterized in that: The diameter of the end of the first grouting pipe (1) away from the connector (11) is smaller than the diameter of the end of the first grouting pipe (1) near the connector (11). The end of the first grouting pipe (1) away from the connector (11) is provided with a first external thread (12). The end of the second grouting pipe (2) near the first grouting pipe (1) is provided with a first internal thread (25). The first grouting pipe (1) and the second grouting pipe (2) are threadedly connected.

3. The detachable grouting assembly according to claim 1, characterized in that: The second grouting pipe (2) has a first channel (21), a second channel (22) and a third channel (23). The first channel (21) is connected to the second channel (22), and the second channel (22) is connected to the third channel (23). The diameter of the second channel (22) near the first channel (21) is smaller than the diameter of the second channel (22) near the third channel (23). The one-way valve (5) is located in the first channel (21) and the second channel (22).

4. The detachable grouting assembly according to claim 3, characterized in that: The one-way valve (5) includes a mounting ring (51) which is fixed in the first channel (21). The mounting ring (51) is connected to a spring (52), and the spring (52) is connected to a sealing ball (53). The sealing ball (53) can abut against the end of the second channel (22) near the first channel (21).

5. The detachable grouting assembly according to claim 4, characterized in that: The second channel (22) is a frustum-shaped channel.

6. The detachable grouting assembly according to claim 1, characterized in that: The outer diameter of the third grouting pipe (3) is smaller than the inner diameter of the second grouting pipe (2). The second grouting pipe (2) is provided with a second internal thread (26) at one end near the third grouting pipe (3), and the third grouting pipe (3) is provided with a second external thread (31) at one end away from the abutment part (32). The second grouting pipe (2) and the third grouting pipe (3) are threadedly connected.

7. The detachable grouting assembly according to claim 6, characterized in that: The expansion member (4) includes an annular gasket (41) and a rubber sleeve (42). Both the annular gasket (41) and the rubber sleeve (42) are fitted onto the third grouting pipe (3), and the second grouting pipe (2) abuts against the annular gasket (41).

8. The detachable grouting assembly according to claim 7, characterized in that: The number of the annular gasket (41) and the rubber sleeve (42) is at least two, and the annular gasket (41) and the rubber sleeve (42) are alternately sleeved on the third grouting pipe (3).

9. The detachable grouting assembly according to claim 2, characterized in that: It also includes a sealing sleeve (6), which is provided with a third external thread (61) and can be threadedly connected to the end of the second grouting pipe (2) away from the third grouting pipe (3).

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