A grouting auxiliary pipe for underground engineering plugging

Abstract

The utility model discloses an underground engineering leak stoppage is with grouting auxiliary pipe, including grouting auxiliary pipe, the grouting auxiliary pipe's grouting pipe mouth end is connected with grouting head main part, grouting head main part, grouting head main part includes fixed ring, is equipped with the connecting sleeve on the fixed ring, is used for with the connection of grouting auxiliary pipe, is seted up three groups of accommodation cavities in the connecting sleeve, each group of accommodation cavities all slide and set up the arc pressboard, and the inner wall of connecting sleeve still is equipped with friction pad. The utility model discloses through three groups of arc pressboard on connecting sleeve in the accommodation cavity movement, can make it with the outer wall of underground engineering leak stoppage is with grouting auxiliary pipe closely contact, cooperate the effect of friction pad, has improved the stability and sealing property that grouting head and underground engineering leak stoppage are connected with grouting auxiliary pipe, avoid the leakage of grout from the junction in the process of grouting, has guaranteed that grout can flow along the direction of grouting auxiliary pipe laying, simultaneously, grouting head can be repeatedly used, has saved the use cost.

Description

Technical Field

[0001] This utility model belongs to the field of underground engineering technology, and in particular relates to a grouting auxiliary pipe for sealing leaks in underground engineering. Background Technology

[0002] Grouting auxiliary pipes, also known as grouting pipes, pre-embedded grouting pipes, or systematic grouting pipes, are systems pre-installed in concrete construction joints, cracks, cold joints, or other weak points prone to leakage. Their core purpose is to provide a repeatable, precise, and high-pressure grouting channel after leakage occurs in underground engineering structures, thereby enabling effective subsequent leak sealing and reinforcement.

[0003] The spring-framed grouting pipe is a type of grouting auxiliary pipe. The inner side of the spring-framed grouting pipe is supported by a rigid spring frame, giving the grouting auxiliary pipe a certain degree of elasticity. During grouting, the grouting auxiliary pipe is used in conjunction with a disposable grouting head. Because the grouting auxiliary pipe is elastic, while the grouting head is mostly a tubular structure, the connection between the grouting head and the grouting auxiliary pipe is not tight enough. During grouting, the grout is prone to leaking from the connection point, and the grout cannot flow in the direction of the grouting auxiliary pipe's laying, resulting in poor performance. Therefore, based on actual usage, we have improved the above-mentioned existing technology. Utility Model Content

[0004] This utility model overcomes the shortcomings of the prior art and provides a grouting auxiliary pipe for sealing leaks in underground engineering, so as to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A grouting auxiliary pipe for sealing leaks in underground engineering includes a grouting auxiliary pipe, with a grouting head body connected to the grout inlet end of the grouting auxiliary pipe;

[0007] The grouting head body includes a fixing ring with a connecting sleeve for connecting to the grouting auxiliary pipe. The connecting sleeve has three sets of receiving cavities, each with a sliding arc-shaped pressure plate, and the inner wall of the connecting sleeve is also provided with a friction pad.

[0008] In a preferred embodiment of this utility model, the connecting sleeve is threaded with three sets of threaded parts, each set of threaded parts extending into the receiving cavity.

[0009] In a preferred embodiment of this utility model, a knob is fixedly connected to the end of each threaded component away from the arc-shaped pressure plate, and a bearing seat is provided at the end of the threaded component away from the knob, and the bearing seat is connected to the arc-shaped pressure plate.

[0010] In a preferred embodiment of this utility model, a pipe sleeve is fixedly connected to the end of the fixing ring away from the connecting sleeve, for connection with the grouting pipe on the grouting pump.

[0011] In a preferred embodiment of this utility model, the inner wall of the pipe opening of the sleeve is provided with an internal thread section, and the internal thread section is threadedly connected to the grouting pipe of the grouting pump.

[0012] In a preferred embodiment of this utility model, the outer side of the grouting auxiliary pipe is a nylon mesh, the inner side of the grouting auxiliary pipe is a steel spring support frame, and a non-woven filter cloth layer is provided between the steel spring support frame and the nylon mesh.

[0013] In a preferred embodiment of this utility model, the inner diameter of the connecting sleeve is slightly larger than the outer diameter of the grouting auxiliary pipe, and the inner diameter of the sleeve is equal to the inner diameter of the grouting auxiliary pipe.

[0014] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0015] This invention, through the rotation of three sets of knobs on the connecting sleeve, can drive the arc-shaped pressure plate on the threaded part to move within the receiving cavity, so that the three sets of arc-shaped pressure plates make close contact with the outer wall of the grouting auxiliary pipe for underground engineering leak sealing. Combined with the effect of the friction pad, it improves the stability and sealing of the connection between the grouting head and the grouting auxiliary pipe for underground engineering leak sealing, avoids grout leakage from the connection during the grouting process, and ensures that the grout can flow along the direction of the grouting auxiliary pipe. At the same time, the grouting head can be reused, saving usage costs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the grouting head according to a preferred embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the other side of the grouting head body according to a preferred embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of the side structure of the connecting sleeve according to a preferred embodiment of the present invention.

[0021] In the diagram: 10, grouting auxiliary pipe; 20, grouting head body; 201, fixing ring; 202, connecting sleeve; 203, friction pad; 204, arc-shaped pressure plate; 205, threaded part; 206, knob; 207, pipe sleeve; 208, internal thread section; 209, receiving cavity; 210, bearing seat. Detailed Implementation

[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0023] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] Please refer to Figure 1-4 This embodiment of the present invention provides a grouting auxiliary pipe for sealing leaks in underground engineering, including a grouting auxiliary pipe 10. The inlet end of the grouting auxiliary pipe 10 is connected to a grouting head body 20. The inner layer of the grouting auxiliary pipe 10 is a high-strength steel wire spring, serving as a supporting framework to ensure that the pipe is not flattened after being covered by concrete, maintaining a circular channel. The middle layer is a non-woven filter cloth wrapped around the spring, which acts as a "one-way valve," allowing grout to seep out during grouting while preventing... External concrete particles intrusion causes blockage. The outer layer is a nylon mesh, which wraps the spring and filter cloth together to form a complete pipe. Its working principle is as follows: Pre-embedding: Before pouring concrete, it is fixed to the steel bar at the construction joint with a fixing clamp. Grouting: When leakage occurs, the grouting needle is inserted into the grouting pipe, and the high-pressure grouting pump pressurizes the grout into the pipe. Overflow: When the grout pressure reaches a certain value, it will push open the non-woven filter mesh and seep out evenly from the pipe wall, filling the gaps and voids inside the concrete to achieve the purpose of stopping water.

[0025] In this embodiment, the grouting head body 20 includes a fixing ring 201, and a connecting sleeve 202 is provided on the fixing ring 201 for connecting with the grouting auxiliary pipe 10. The connecting sleeve 202 has three sets of receiving cavities 209, and each set of receiving cavities 209 has an arc-shaped pressure plate 204 slidably arranged in it. The inner wall of the connecting sleeve 202 is also provided with a friction pad 203. The three sets of arc-shaped pressure plates 204 are arc-shaped plates with high friction. The arc-shaped clamps 204 in the three sets of receiving cavities 209 move to make them in close contact with the grouting auxiliary pipe 10. With the friction pad 203, the stability and sealing of the connection between the grouting head body 20 and the underground engineering leak-stopping grouting auxiliary pipe 10 can be improved, avoiding grout leakage from the connection during the grouting process and ensuring that the grout can flow along the direction of the grouting auxiliary pipe. At the same time, the grouting head can be reused, saving usage costs.

[0026] Furthermore, the connecting sleeve 202 is threaded with three sets of threaded parts 205, each set of threaded parts 205 extending into the receiving cavity 209. Each set of threaded parts 205 has a knob 206 fixedly connected to the end away from the arc-shaped pressure plate 204. The end of the threaded part 205 away from the knob 206 is provided with a bearing seat 210, and the bearing seat 210 is connected to the arc-shaped pressure plate 204. The rotation of the knob 206 can drive the threaded part 205 to move, thereby moving the arc-shaped pressure plate 204 and making it in close contact with the outer wall of the grouting auxiliary pipe 10.

[0027] In this embodiment, a sleeve 207 is fixedly connected to the end of the fixing ring 201 away from the connecting sleeve 202 for connection with the grouting pump. The inner wall of the sleeve 207 has an internal thread section 208, which is threaded to the grouting pump. The internal thread section 208 facilitates connection with the external grouting pump. The inner side of the sleeve 207 extends into the connecting sleeve 202. After rotating the knob 206 to move the arc-shaped pressure plate 204 down, the grouting auxiliary pipe 10 can be pressed tightly, thus achieving a tight installation between the grouting head body 20 and the grouting auxiliary pipe 10 with the sleeve 207.

[0028] Furthermore, the outer side of the grouting auxiliary pipe 10 is a nylon mesh, the inner side of the grouting auxiliary pipe 10 is a steel spring support frame, and a non-woven filter cloth layer is provided between the steel spring support frame and the nylon mesh. The inner diameter of the connecting sleeve 202 is slightly larger than the outer diameter of the grouting auxiliary pipe 10, and the inner diameter of the sleeve 207 is equal to the inner diameter of the grouting auxiliary pipe 10.

[0029] In this embodiment, when the grouting auxiliary pipe for underground engineering leak sealing is actually used, the connecting sleeve 202 of the grouting head body 20 is fitted onto the outer wall of the grouting auxiliary pipe 10 for underground engineering leak sealing. Then, the three sets of knobs 206 are rotated to move the threaded part 205 in the receiving cavity 209, so that the arc-shaped pressure plate 204 moves and contacts the outer wall of the grouting auxiliary pipe 10. With the help of the friction pad 203, the sealing performance of the contact with the grouting auxiliary pipe 10 is improved. Then, the grout delivery pipe of the external grouting pump is threadedly connected to the internal thread section 208 opened on the inner wall of the sleeve 207 to prevent the grout from leaking from the connection during the grouting process. This ensures that the grout can flow along the direction of the grouting auxiliary pipe. At the same time, the grouting head body 20 can be reused, saving the cost of use.

[0030] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0031] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0032] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0033] In summary, the above detailed description is intended to be exemplary rather than limiting, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. A grouting auxiliary pipe for sealing leaks in underground engineering, comprising a grouting auxiliary pipe (10), characterized in that, The grouting auxiliary pipe (10) is connected to the grouting head body (20) at the grouting inlet end; The grouting head body (20) includes a fixing ring (201) and a connecting sleeve (202) for connecting with the grouting auxiliary pipe (10). The connecting sleeve (202) has three sets of receiving cavities (209) inside, and each set of receiving cavities (209) has an arc-shaped pressure plate (204) slidably arranged inside. The inner wall of the connecting sleeve (202) is also provided with a friction pad (203).

2. The grouting auxiliary pipe for sealing leaks in underground engineering according to claim 1, characterized in that, The connecting sleeve (202) is threaded with three sets of threaded parts (205), each set of threaded parts (205) extending into the receiving cavity (209).

3. The grouting auxiliary pipe for sealing leaks in underground engineering according to claim 2, characterized in that, Each threaded component (205) has a knob (206) fixedly connected to the end away from the arc-shaped pressure plate (204). The end of the threaded component (205) away from the knob (206) is provided with a bearing seat (210), and the bearing seat (210) is connected to the arc-shaped pressure plate (204).

4. The grouting auxiliary pipe for sealing leaks in underground engineering according to claim 1, characterized in that, The end of the fixing ring (201) away from the connecting sleeve (202) is fixedly connected to a pipe sleeve (207) for connection with the grouting pipe on the grouting pump.

5. The grouting auxiliary tube for underground work leak stoppage according to claim 4, characterized by, The inner wall of the pipe opening of the sleeve (207) is provided with an internal thread section (208), and the internal thread section (208) is threadedly connected to the grouting pump's grout delivery pipe.

6. The grouting auxiliary tube for underground work leak stoppage according to claim 1, characterized by, The outer side of the grouting auxiliary pipe (10) is a nylon mesh, and the inner side of the grouting auxiliary pipe (10) is a steel spring support frame, and a non-woven filter cloth layer is provided between the steel spring support frame and the nylon mesh.

7. The grouting auxiliary pipe for sealing leaks in underground engineering according to claim 4, characterized in that, The inner diameter of the connecting sleeve (202) is slightly larger than the outer diameter of the grouting auxiliary pipe (10), and the inner diameter of the sleeve (207) is equal to the inner diameter of the grouting auxiliary pipe (10).

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