A full-face grouting pipe and mounting structure

Abstract

The utility model discloses a full -section grouting pipe, including guide slurry pipe and shower nozzle, the surface of guide slurry pipe is equipped with a plurality of screw holes, and is equipped with the conveying pipe in guide slurry pipe, and the shower nozzle includes upper seat body and lower seat body, the top of upper seat body is provided with the outer thread of adaptation with screw hole, and lower seat body is connected with upper seat body through the thread, and lower seat body is installed on the conveying pipe, and the middle part of upper seat body is provided with the limit sleeve, and the middle part of lower seat body is provided with the flow guide sleeve. The utility model discloses a screw hole is arranged on the surface of guide slurry pipe, utilizes the installation cavity that constitutes between upper seat body and screw hole, combines the design of upper seat body, lower seat body and spring, when conveying pipe imports high pressure slurry inwards, and spring is contracted under the action force, thereby makes the shower nozzle outwardly stretch, to realize quick grouting, fundamentally avoids the technical problem that the shower nozzle of full -section grouting pipe is blocked due to external force during the installation process, and influences its grouting effect.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a full-section grouting pipe and its installation structure. Background Technology

[0002] In concrete construction, the treatment of construction joints is crucial to ensuring the structural integrity and waterproofing performance. Traditionally, methods such as pre-embedded rubber waterstops and waterstop steel plates are commonly used. The former relies on its own property of expanding when exposed to water to fill the gaps, while the latter blocks water flow by extending the seepage path. The effectiveness of these methods is greatly affected by the accuracy of installation and the quality of concrete pouring. Once deviations or quality defects occur, effective repairs are difficult to make later.

[0003] To address the aforementioned issues, grouting pipe technology has gradually gained application. This technology involves applying grout, which penetrates and fills the tiny voids and cracks within construction joints, thereby forming a dense waterproof layer inside the structure. This method significantly improves the reliability and durability of waterproofing treatment for construction joints, and is particularly suitable for critical areas such as underground engineering projects with high waterproofing requirements. However, existing grouting pipes often require pre-embedded installation and have complex structures. Furthermore, the lack of a pressure adaptive mechanism between the nozzle and the pipe body frequently leads to problems such as a small grout diffusion radius when the grouting pressure is insufficient, and soil splitting around the pipe when the pressure is too high, severely affecting the uniformity and reliability of grouting.

[0004] To address the above technical challenges, there is an urgent need to propose a new type of full-section grouting pipe and its installation structure. Utility Model Content

[0005] This utility model provides a full-section grouting pipe and its installation structure to solve the problems of easy clogging of grouting pipe nozzles and poor grouting effect in the prior art.

[0006] According to one aspect of the present invention, a full-section grouting pipe is provided, comprising a grout guide pipe and a nozzle. The surface of the grout guide pipe is provided with multiple threaded holes, and a conveying pipe is provided inside the grout guide pipe. The nozzle comprises an upper body and a lower body. The top of the upper body is provided with an external thread adapted to the threaded holes, and the lower body is threadedly connected to the upper body. The lower body is mounted on the conveying pipe. A limiting sleeve is provided in the middle of the upper body, and a flow guide sleeve is provided in the middle of the lower body. A sliding sleeve with a limiting edge is fitted on the flow guide sleeve. A spring is press-fitted between the limiting edge and the limiting sleeve. A nozzle is installed inside the limiting sleeve, and the nozzle is threadedly connected to the sliding sleeve.

[0007] Based on the above scheme, preferably, the top of the upper seat is provided with a countersunk groove, so that when the spring is in the extended state, the top of the injection head is flush with the outer edge of the slurry guide pipe.

[0008] Based on the above scheme, preferably, the outer edge of the conveying pipe protrudes outward to form an installation edge, the installation edge is provided with a grouting hole communicating with the conveying pipe, the installation edge is provided with an external thread, the bottom of the lower seat protrudes outward to form a connecting edge, the connecting edge is arranged opposite to the installation edge and connected by a locking nut.

[0009] Based on the above scheme, preferably, the middle part of the limiting sleeve extends downward to form a flange that intermittently presses against the sliding sleeve.

[0010] This utility model also provides an installation structure for installing the full-section grouting pipe as described above. The structure is characterized by including a grouting conduit and a connector. The full-section grouting pipe is connected to the grouting conduit through the connector, and water-swellable sealing strips are provided on both sides of the full-section grouting pipe.

[0011] Based on the above scheme, a preferred embodiment further includes a fixing sleeve, wherein multiple fixing sleeves are installed at intervals on the full-section grouting pipe, and the outer circumference of the fixing sleeve extends outward to form an mounting plate, which is fixed to the concrete by expansion screws.

[0012] This utility model discloses a full-section grouting pipe and its installation structure. By setting screw holes on the surface of the grouting pipe, an installation cavity is formed between the upper seat and the screw holes. Combined with the design of the upper seat, lower seat, and spring, when high-pressure slurry is introduced into the delivery pipe, the spring is compressed by the force, thereby causing the nozzle to extend outward to achieve rapid grouting. This can fundamentally avoid the technical problem of the nozzle of the full-section grouting pipe being blocked due to external forces during the installation process, thus affecting the grouting effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the installation structure of a full-section grouting pipe according to the present invention; Figure 2 This is a perspective view of the grout guide pipe of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of part A; Figure 4 This is a cross-sectional view of the installation of the grout guide pipe of this utility model; Figure 5 For the present utility model Figure 4Enlarged view of the first state in section B; Figure 6 For the present utility model Figure 4 The second state diagram is enlarged from part B.

[0014] Explanation of icon numbers: 12. Grout guide pipe; 12. Conveying pipe; 121. Installation edge; 21. Nozzle; 21. Upper seat; 211. External thread; 212. Limiting sleeve; 213. Countersunk groove; 214. Flange; 22. Lower seat body; 221. Flow guide sleeve; 222. Connecting flange; 23. Sliding sleeve; 231. Limiting edge; 24. Spring; 25. Spray head; 26. Tighten the lock nut; 3. Grouting conduit; 4. Connector; 5. Water-stopping rubber strips; 6. Fixing sleeve; 61. Mounting plate; 62. Expansion screw. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0016] Please see Figure 2 , Figure 3 As shown, a full-section grouting pipe of this utility model includes a grouting pipe 1 and a nozzle 2.

[0017] The surface of the grout guide pipe 1 of this utility model is provided with multiple screw holes, and the grout guide pipe 11 is provided with a conveying pipe 12. The conveying pipe 12 injects high-pressure mud into the nozzle 2 through the pump body.

[0018] The nozzle 2 of this utility model includes an upper body 21 and a lower body 22. The top of the upper body 21 is provided with an external thread 211 that is compatible with the screw hole. In order to facilitate installation and positioning, a step is provided on the lower side of the external thread 211 of the upper body 21 for limiting installation.

[0019] In this invention, the lower seat 22 and the upper seat 21 are connected by threads. The lower seat 22 is mounted on the conveying pipe 12. A limiting sleeve 212 is provided in the middle of the upper seat 21, and a guide sleeve 221 is provided in the middle of the lower seat 22. A sliding sleeve 23 with a limiting edge 231 is fitted on the guide sleeve 221, and a spring 24 is press-fitted between the limiting edge 231 and the limiting sleeve 212. A spray head 25 is installed inside the limiting sleeve 212, and the spray head 25 is connected to the sliding sleeve 23 by threads.

[0020] The upper seat 21 of this utility model is provided with a countersunk groove 213 at the top. When the spring 24 is in the extended state, the top of the injection head 25 is flush with the outer edge of the grout guide pipe 1, which can effectively prevent the injection head 25 from being damaged or blocked in the non-grouting state.

[0021] In other words, when there is no mud in the delivery pipe 12, the spring 24 is in an extended state, and the injection head 25 is housed in the countersunk groove 213. When high-pressure mud is being delivered into the delivery pipe 12, the spring 24 is compressed by an outward force, causing the injection head 25 to pop outward, thus achieving its automatic grouting purpose. For details, please refer to [link to specific structural description]. Figure 4 , Figure 5 and Figure 6 As shown.

[0022] For a more detailed explanation of the technical solution of this utility model, please refer to [link / reference needed]. Figure 3 As shown, the outer edge of the conveying pipe 12 of this utility model protrudes outward to form an mounting edge 121. The mounting edge 121 is provided with a grouting hole communicating with the conveying pipe 12, and the mounting edge 121 is provided with an external thread. The bottom of the lower seat 22 protrudes outward to form a connecting edge 222. The connecting edge 222 is arranged opposite to the mounting edge 121 and connected by a locking nut 26 to ensure a firm connection.

[0023] The middle part of the limiting sleeve 212 extends downward to form a flange 214. The flange 214 intermittently presses against the sliding sleeve 23, further restricting the movement stroke of the sliding sleeve 23 and improving the stability of the movement of the spray head 25.

[0024] like Figure 1 As shown, the installation structure of this utility model includes a grouting conduit 3 and a connector 4. The full-section grouting pipe is connected to the grouting conduit 3 through the connector 4. Water-swellable sealing strips 5 are provided on both sides of the full-section grouting pipe to enhance the waterproof effect. Multiple fixing sleeves 6 are installed on the grouting pipe 1 at intervals. The outer circumference of the fixing sleeve 6 extends outward to form an installation plate 61. The installation plate 61 is fixed to the concrete by expansion screws 62 to ensure that the grouting pipe is firmly installed.

[0025] Compared with existing technologies, the grouting nozzle of this invention must have an automatic opening and closing function. In the non-grouting state, it should be flush with the pipe wall to avoid damage from external forces. During grouting, it should automatically push out and open under the pressure of the grout. This invention provides a full-section grouting pipe with a reasonable structure, simple operation, and high reliability. The pipe and its installation structure fundamentally solve the problems of easy clogging, complex installation, and poor grouting effect of traditional grouting pipes, thus improving the overall quality and efficiency of grouting reinforcement and waterproofing in underground engineering.

[0026] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A full-section grouting pipe, characterized in that, The device includes a grout guide pipe and a nozzle. The surface of the grout guide pipe is provided with multiple screw holes, and a delivery pipe is provided inside the grout guide pipe. The nozzle includes an upper body and a lower body. The top of the upper body is provided with an external thread adapted to the screw holes, and the lower body is threadedly connected to the upper body. The lower body is mounted on the delivery pipe. A limiting sleeve is provided in the middle of the upper body, and a flow guide sleeve is provided in the middle of the lower body. A sliding sleeve with a limiting edge is fitted on the flow guide sleeve. A spring is press-fitted between the limiting edge and the limiting sleeve. A nozzle is installed inside the limiting sleeve, and the nozzle is threadedly connected to the sliding sleeve.

2. The full-section grouting pipe as described in claim 1, characterized in that, The upper seat is provided with a countersunk groove at the top. When the spring is in the extended state, the top of the injection head is flush with the outer edge of the slurry pipe.

3. A full-section grouting pipe as described in claim 1, characterized in that, The outer edge of the conveying pipe protrudes outward to form an installation edge. The installation edge is provided with a grouting hole that communicates with the conveying pipe. The installation edge is provided with an external thread. The bottom of the lower seat protrudes outward to form a connecting edge. The connecting edge is arranged opposite to the installation edge and connected by a locking nut.

4. A full-section grouting pipe as described in claim 1, characterized in that, The middle part of the limiting sleeve extends downward to form a flange that intermittently presses against the sliding sleeve.

5. An installation structure for installing a full-section grouting pipe as described in any one of claims 1-4, characterized in that, It includes a grouting conduit and a connector. The full-section grouting pipe is connected to the grouting conduit through the connector, and water-swellable sealing strips are provided on both sides of the full-section grouting pipe.

6. The installation structure as described in claim 5, characterized in that, It also includes a fixing sleeve, which is a plurality of spaced-apart grouting pipes installed on the full-section grouting pipe. The outer circumference of the fixing sleeve extends outward to form an mounting plate, which is fixed to the concrete by expansion screws.

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