Grouting plugging device and grouting device

Abstract

The utility model relates to the technical field of tunnel grouting, in particular to a grouting plugging device and a grouting device.The grouting plugging device comprises a rigid grouting pipe and a plugging body, and it is guaranteed that the grouting position is always sealed tightly in the grouting process. Wherein the plugging body is provided with an annular flexible bag body, the rigid grouting pipe is sleeved with the plugging body, a pressurization opening is formed in one end of the plugging body, when grouting is needed, the grouting plugging device is installed at the position of a grouting guide pipe, pressurization is conducted in the flexible bag body through the pressurization opening so that the flexible bag body can be expanded to abut against the grouting guide pipe, and sealing of the grouting guide pipe during grouting is achieved. And meanwhile, the grout can be transported through the rigid grouting pipe without obstacles, so that the transportation efficiency of the grout is improved. And after grouting is completed, pressure can be released through the pressurizing opening, so that the flexible bag body recovers deformation and is easily detached from the interior of the grouting guide pipe, and the operation means are further simplified.

Description

Technical Field

[0001] This utility model relates to the field of tunnel grouting technology, specifically to a grouting sealing device and a grouting apparatus. Background Technology

[0002] In the construction process of tunnel engineering, in order to ensure the grouting effect, the traditional construction process is to directly insert the grouting pipe into the grouting conduit, seal the pipe opening with a sealant or install a grout stop valve, and remove the sealant, valve body and grouting pipe after grouting is completed.

[0003] However, in practice, problems such as excessive wear and tear of the sealing material leading to waste, or insufficient pressure due to inadequate sealing can cause grouting failure. Furthermore, the disassembly and assembly of the grout stop valve is time-consuming and labor-intensive, placing certain demands on cost. Utility Model Content

[0004] This utility model was made to solve the above-mentioned technical problems. Its purpose is to provide a grouting and sealing device and a grouting device that are easy to disassemble and have a simple structure and principle.

[0005] To achieve the above objectives, this utility model provides a grouting and sealing device, including a rigid grouting pipe and a sealing body having an annular flexible bladder sleeved on the rigid grouting pipe, with a pressure port formed at one end.

[0006] Preferably, the sealing body further includes a first sealing cap and a second sealing cap, the first sealing cap and the second sealing cap being respectively disposed at both ends of the flexible bladder, and the rigid grouting pipe passing through the first sealing cap and the second sealing cap respectively.

[0007] Preferably, it also includes a pressure conduit that passes through the second sealing cap and is connected to the pressurization port.

[0008] Preferably, the rigid grouting pipe includes a grouting nozzle that passes through the first sealing cap.

[0009] Preferably, the grouting nozzle is cone-shaped.

[0010] Preferably, it also includes a pressure device connected to the pressure port, which can increase the pressure inside the flexible bladder.

[0011] Preferably, the pressure device includes a pressure gauge and a hydraulic device, wherein the pressure gauge is installed at the end of the hydraulic device that connects to the pressure port.

[0012] Preferably, the pressure device further includes a pressure rod connected to the hydraulic equipment.

[0013] This utility model provides a grouting device, including the grouting and sealing device described in any of the above claims, a grouting conduit including a pipe body and a pipe head, wherein the pipe body is provided with an overflow hole, and the grouting and sealing device is disposed on the side of the pipe body away from the pipe head; and a grouting hose connected to the rigid grouting pipe and an external grouting machine.

[0014] Preferably, multiple sets of overflow holes are provided, and the overflow holes are evenly distributed on the side wall of the pipe body.

[0015] Preferably, the pipe head is tapered, and the outer wall of the pipe head is provided with external threads.

[0016] Based on the above description and practice, the grouting and sealing device and grouting device provided by this utility model include a rigid grouting pipe and a sealing body, ensuring a tight seal at the grouting point throughout the grouting process. The sealing body has an annular flexible bladder fitted onto the rigid grouting pipe, with a pressure port at one end. When grouting is required, the grouting and sealing device is installed at the grouting conduit, and pressure is applied to the flexible bladder through the pressure port, causing it to expand and press against the grouting conduit, thus sealing the grouting conduit during grouting. Furthermore, the grout can be transported unimpeded through the rigid grouting pipe, improving grout transport efficiency. After grouting is completed, the pressure can be released through the pressure port, allowing the flexible bladder to recover its deformation and be easily removed from the grouting conduit, further simplifying the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the grouting and sealing device involved in one embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the connection between the grouting and sealing device and the pressure device in one embodiment of this application.

[0019] Figure 3 This is a structural schematic diagram of the grouting device in use in one embodiment of this application. Detailed Implementation

[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0021] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0022] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Grouting is a commonly used construction method in tunnel engineering, mainly used to improve the stability of surrounding rock, prevent groundwater seepage, fill cavities, and reinforce foundations. To ensure grouting effectiveness, the traditional construction process involves directly inserting the grouting pipe into the grouting conduit 5, sealing the pipe opening with a sealant, and then removing the sealant and grouting pipe after grouting is complete. This process often suffers from sealant consumption and insufficient grout compaction due to insufficient pressure.

[0024] This utility model discloses a grouting and sealing device 10. Please refer to [reference needed]. Figures 1 to 3In some embodiments, the grouting sealing device 10 includes a rigid grouting pipe 1 and a sealing body 2. The rigid grouting pipe 1 passes through the sealing body 2, ensuring that the grouting site remains tightly sealed during the grouting process. The sealing body 2 has an annular flexible bladder 20, which is fitted onto the rigid grouting pipe 1. One end has a pressure port 21. When grouting is required, the grouting sealing device 10 is installed at the grouting conduit 5. Pressure is applied to the flexible bladder 20 through the pressure port 21, causing the flexible bladder 20 to expand and press against the grouting conduit 5, thus sealing the grouting conduit 5 during grouting. At this time, the grout can flow freely within the rigid grouting pipe 1, improving the grout flow efficiency. After grouting is completed, the pressure can be released through the pressure port 21, allowing the flexible bladder 20 to recover its deformation and be easily removed from the grouting conduit 5, further simplifying the operation.

[0025] Understandably, when the flexible bladder 20 expands through the gas or liquid entering via the pressurization port 21, the rigid grouting pipe 1 is also subjected to pressure. In some embodiments, the rigid grouting pipe 1 can be made of rigid materials with high rigidity and hardness, such as stainless steel or alloy steel, to avoid deformation of the rigid grouting pipe 1 under pressure, which would affect the stable flow of grout inside the rigid grouting pipe 1.

[0026] Furthermore, in order to better stabilize the rigid grouting pipe 1 within the sealing body 2, in some embodiments, the sealing body 2 further includes a first sealing cap 22 and a second sealing cap 23. The first sealing cap 22 and the second sealing cap 23 are respectively disposed at both ends of the flexible bladder 20. The rigid grouting pipe 1 passes through the first sealing cap 22 and the second sealing cap 23 respectively, so that the grouting sealing device 10 can be installed relatively stably within the grouting conduit 5. Moreover, the flexible bladder 20, the first sealing cap 22, and the second sealing cap 23 can be integrally formed, so that the grouting sealing device 10 can be easily removed as a whole when installing or disassembling the sealing body 2. This also simplifies the difficulty of grouting operation during tunnel construction and reduces its operation time cost.

[0027] In some embodiments, the grouting sealing device 10 further includes a pressure pipe 3 for injecting air and pressurizing the flexible bladder 20. The pressure pipe 3 passes through the second sealing cap 23 and is connected to the pressurization port 21. The pressure pipe 3 is stably installed on the pressurization port 21. The outlet of the pressure pipe 3 is located between the flexible bladder 20 and the rigid grouting pipe 1. When grouting is required, it ensures that the gas can smoothly pass through the pressure pipe 3 and the pressurization port 21 to pressurize the flexible bladder 20 so that the outer wall of the flexible bladder 20 abuts against the inner wall of the grouting conduit 5. This prevents the pressure pipe 3 from detaching from the pressurization port 21 due to excessive flow rate or the instability of the pressure pipe 3 when the gas passes through it, thereby affecting the sealing performance of the grouting sealing device 10 and the overall efficiency of the grouting operation during construction. After grouting is completed, the pressure pipe 3 is pulled out from the pressurization port 21 to release the pressure inside the flexible bladder 20. At this time, the outer wall of the flexible bladder 20 no longer abuts against the inner wall of the grouting conduit 5, and the grouting sealing device 10 can be easily removed from the grouting conduit, ensuring that the grouting sealing device 10 can be used multiple times and reducing the manufacturing cost of the entire grouting sealing device 10.

[0028] Understandably, in some embodiments, the rigid grouting pipe 1 includes a grouting nozzle 11, which passes through the first sealing cap 22, further stabilizing the rigid grouting pipe 1 on the sealing body 2. This prevents cement grout or other slurries from leaking from the connection between the grouting nozzle 11 and the first sealing cap 22 when they are sent into the grouting conduit 5 via the rigid grouting pipe 1, thus avoiding waste of slurry or blockage of the entire grouting sealing device 10. On the other hand, the grouting nozzle 11 has a certain guiding effect, allowing the slurry to enter the grouting pipe 5 smoothly, avoiding excessive flow rate during slurry transportation and splashing when entering the grouting conduit 5, which would affect the grouting efficiency.

[0029] Furthermore, the grouting nozzle 11 is designed in a conical shape. On the one hand, the conical design reduces air resistance during the grouting process, allowing the grout to flow out of the grouting pipe more smoothly. On the other hand, the conical design helps guide the grout to flow in a specific direction, preferentially delivering the grout into the interior of the grouting conduit 5, thereby improving the directionality and accuracy of the grouting.

[0030] The grouting nozzle 11 can be made of rigid metals such as stainless steel or alloy steel, or flexible materials such as rubber or plastic. When the grouting nozzle 11 is made of rigid metal, it can be integrally formed with the rigid grouting pipe 1 to further prevent grout from leaking from the connection between the grouting nozzle 11 and the rigid grouting pipe 1, thus avoiding unnecessary waste or blockage.

[0031] In some embodiments, the grouting and sealing device 10 further includes a pressure device 4 connected to the pressure port 21, which can increase the pressure inside the flexible bladder 20. The pressure device 4 enables the pressure inside the flexible bladder 20 to be increased or decreased at a relatively stable and controllable rate. On the one hand, this avoids damage to the flexible bladder 20 due to excessive pressure increase in a short period of time; on the other hand, it ensures the safety and overall working efficiency of the grouting and sealing device 10 during grouting.

[0032] Furthermore, the pressure device 4 includes a pressure gauge 41 and a hydraulic device 42. The hydraulic device 42 is used to continuously supply pressure to the sealing body 2. The pressure gauge 41 is installed at the end where the hydraulic device 42 and the pressure port 21 are connected. It is used to measure the pressure at the pressure port 21 or the outlet of the hydraulic device 42 in real time, and to adjust the pressure in the sealing body 2 in a timely manner according to the actual situation.

[0033] Understandably, the hydraulic device 42 can be a manual hydraulic pump. In some embodiments, the pressure device 4 also includes a pressure rod 43 connected to the hydraulic device 42. When pressurization is required, the pressure rod 43 is manually pressed to continuously increase the pressure inside the hydraulic device 42. The pressure inside the sealing body 2 increases and the flexible bladder 20 expands to abut against the grouting conduit 5, allowing the grout to flow relatively smoothly inside the rigid grouting pipe 1.

[0034] This utility model provides a grouting device, including any of the above-mentioned grouting sealing devices 10, grouting conduit 5, and grouting hose 6. The grouting conduit 5 includes a pipe body 51 and a pipe head 52. An overflow hole 53 is provided on the pipe body 51. The grouting sealing device 10 is located on the side of the pipe body 51 away from the pipe head 52. Grout is transported from one side of the pipe body 51 to the pipe head 52, and then released into the formation through the overflow hole 53. The grouting hose 6 connects the rigid grouting pipe 1 and an external grouting machine (not shown), and is used to transport the grout to the rigid grouting pipe 1 and then into the grouting conduit 5. At this time, the grout is dispersed into the formation through the overflow hole 53, ensuring the compactness of the grouting and ensuring the quality of the project.

[0035] Furthermore, multiple sets of overflow holes 53 are provided, and the overflow holes 53 are evenly distributed on the side wall of the pipe body 51, which expands the overflow range of the grout in the grouting pipe 5, accelerates the speed at which the grout disperses to the corresponding area of ​​the formation, and avoids the grout solidifying during the dispersion process due to the slow dispersion speed, which would lead to uneven grout dispersion and affect the overall stability of the entire area.

[0036] Understandably, the pipe head 52 is tapered, and the outer wall of the pipe head 52 is provided with external threads (not shown in the figure), which makes it easier for the grouting pipe 5 to extend into the formation and drill into the hole, thereby improving the efficiency of the entire grouting operation and reducing labor costs.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A grouting and sealing device, characterized in that, include: Rigid grouting pipe; The sealing body has a ring-shaped flexible bladder, which is sleeved on the rigid grouting pipe, and a pressurization port is formed at one end; The sealing body also includes a first sealing cap and a second sealing cap, which are respectively disposed at both ends of the flexible bladder, and the rigid grouting pipe passes through the first sealing cap and the second sealing cap respectively.

2. The grouting and sealing device as described in claim 1, characterized in that, Also includes: A pressure pipe passes through the second sealing cap and is connected to the pressurization port.

3. The grouting and sealing device as described in claim 1, characterized in that, Also includes: A pressure device, connected to the pressure port, can increase the pressure inside the flexible capsule.

4. The grouting and sealing device as described in claim 3, characterized in that, The pressure device includes a pressure gauge and a hydraulic device, with the pressure gauge installed at the end of the hydraulic device connected to the pressure port.

5. The grouting and sealing device as described in claim 4, characterized in that, The pressure device also includes a pressure rod, which is connected to the hydraulic equipment.

6. A grouting device, comprising the grouting and sealing device as described in any one of claims 1-5, characterized in that, Also includes: The grouting conduit includes a conduit body and a conduit head. The conduit body is provided with an overflow hole, and the grouting sealing device is located on the side of the conduit body away from the conduit head. Grouting hose, connected to the rigid grouting pipe and the external grouting machine.

7. The grouting device as described in claim 6, characterized in that, The overflow holes are provided in multiple sets and are evenly distributed on the side wall of the pipe.

8. The grouting device as described in claim 6, characterized in that, The pipe head is tapered, and external threads are provided on the outer wall of the pipe head.

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