Water conservancy construction grouting device

Abstract

This utility model belongs to the field of grouting pipeline technology, specifically relating to a grouting device for hydraulic construction. It includes a straightening pipe, a cone fixed to the end of the straightening pipe, and a grout outlet hole on the outside of the straightening pipe. It also includes a plug inserted inside the cone; extension rods connected to the plug, with multiple extension rods arranged in a circular array around the central axis of the straightening pipe; a limiting ring penetrating the extension rods, with its end inserted into the grout outlet hole; a flared ring inside the straightening pipe, used to expand the multiple extension rods, with a ball joint fixed to its outside; the ball joint supports adjacent extension rods radially along the straightening pipe; a lifting ring is fixed inside the flared ring, horizontally offset from the grout outlet hole; and a protrusion is fixed to the edge of the extension rod away from the grout outlet hole. This utility model limits and fills the conical space while locking it using the grout outlet hole, with no obvious jamming during removal and placement, facilitating easy cleaning of the grouting device.

Description

Technical Field

[0001] This utility model belongs to the field of grouting pipeline technology, specifically relating to a grouting device for water conservancy construction. Background Technology

[0002] Cone grouting refers to the process of drilling holes with a drilling machine, then injecting a prepared clay grout into the spaces between soil and rock particles in the dam body under pressure. This allows the grout to spread, gel, and solidify, increasing soil strength, improving impermeability, and preventing dam deformation, cracking, collapse, and other defects. It is suitable for reinforcing old dams and provides good reinforcement for dams with various hidden dangers such as rodent and ant burrows, hidden ditches, cracks, and natural cavities.

[0003] During the grouting process, the metal pipe is inserted directly into the bottom of the channel, flows out from the side wall hole of the pipe body, and is lifted step by step. It works in conjunction with the grout stop plug to perform segmented grouting. For example, a search revealed a Chinese utility model grouting device for water conservancy construction with announcement number CN223202342U. It utilizes an annular air expansion bladder and a sleeve block for detachable connection. The whole split type is set by threaded detachment to prevent the grout from solidifying, adhering or accumulating, and improve the grout recycling rate.

[0004] During use, the conical part of the metal tube is blocked by an annular air bladder, which is removable by means of threaded locking. Since the threaded part is immersed in the slurry, small particles adhere to the threaded part and cause jamming, which may hinder the removal and placement of the annular air bladder and make it inconvenient to clean the conical part of the metal tube. Utility Model Content

[0005] The purpose of this invention is to provide a grouting device for hydraulic construction that can limit the filling of a conical space while locking it using the grout outlet. There is no obvious jamming during the loading and unloading process, which facilitates the easy cleaning of the grouting device.

[0006] The specific technical solution adopted by this utility model is as follows: A grouting device for hydraulic construction includes a straightening pipe, a cone fixed to the end of the straightening pipe, and a grout outlet hole opened on the outside of the straightening pipe, and further includes: A plug is inserted inside the cone. An extension rod is connected to the plug head, and multiple extension rods are arranged in a circular array around the central axis of the collimating tube; A limiting ring passes through the extension rod, and the end of the limiting ring is inserted into the slurry outlet hole; A flaring ring is disposed inside the collimating tube and is used to open up the plurality of extension rods.

[0007] As an optional solution, a ball joint is fixed to the outside of the flared ring; The ball joint supports the adjacent extension rod radially along the collimator.

[0008] As an optional solution, a lifting ring is fixed to the inner side of the flared ring; The lifting ring is horizontally offset from the slurry outlet.

[0009] As an alternative, a protrusion is fixed to the top edge of the extension rod away from the slurry outlet; The protrusion has an inner spherical groove in the middle that is adapted to the ball joint, and the inner spherical groove extends laterally through one end of the protrusion.

[0010] As an alternative, a gap is left between the inner spherical groove and the flared ring, and the edge of the inner spherical groove has rounded corners.

[0011] As an alternative, the ball joint includes a ball head and a joint rod that are integrally connected together; When the ball head is inserted into the inner spherical groove, it is used to lock the multiple extension rods along the axial direction of the collimating tube. The segment extends out of the inner spherical groove.

[0012] As an optional solution, a sealing ring that is interference-fitted with the cone is fitted on the outer side of the plug; The top of the plug has an embedded groove that connects to the bottom of the extension rod.

[0013] The technical effects achieved by this utility model are as follows: This invention, while limiting and filling the conical space, can be locked using the grout outlet hole, and can be hidden inside the collimation tube. The locked state can be released, thus making it easy to take out. It effectively prevents grout from accumulating in the conical space. The obstruction caused by the grout is negligible. There is no obvious jamming during the taking and putting process, which is conducive to the convenient cleaning of the grouting device.

[0014] When placing the flared ring, the present invention allows the hook to be used to hook the lifting ring and suspend it into the collimating tube, and the hook to tangentially pull the lifting ring to achieve forward or reverse rotation of the flared ring. There is no need to reach into the collimating tube to operate the flared ring, so that the ball joint enters the inner spherical groove from the opening and can support adjacent extension rods radially along the collimating tube, and conveniently open multiple extension rods. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the connection state of the hydraulic construction grouting device of this utility model; Figure 2 This is a schematic diagram of the structure of a single collimating tube of this utility model; Figure 3 This is a cross-sectional view of a single collimating tube of this utility model; Figure 4 This is a structural schematic diagram of the multiple extension rods of this utility model in the extended state; Figure 5 This is a schematic diagram of the structure of a single extension rod of this utility model; Figure 6 This is a schematic diagram of the plug head of this utility model; Figure 7 This is a top view of the flared ring of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Collimator; 2. Cone; 3. Slurry outlet; 4. Plug; 5. Sealing ring; 6. Inner groove; 7. Extension rod; 8. Limiting ring; 9. Protrusion; 10. Inner spherical groove; 11. Flared ring; 12. Ball joint; 13. Lifting ring. Detailed Implementation

[0017] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0018] like Figures 1-7 As shown, a grouting device for hydraulic construction includes a straightening pipe 1, a cone 2 fixed to the end of the straightening pipe 1, and a grout outlet 3 opened on the outside of the straightening pipe 1. During the construction of a hydraulic dam, a vertical hole is pre-drilled in the dam, and then a flexible hose is used to connect to the straightening pipe 1. Figure 1 As shown, three sections of straightening pipe 1 can be connected end-to-end with threads to form a longer grouting device. The cone 2 is inserted downwards into the drilled hole, and the pre-mixed filling grout from the grouting machine is drawn in by the grouting pump, flowing along... Figure 2 The slurry outlet 3 shown is pressurized and injected into the underground space.

[0019] This grouting device is suitable for some hydraulic construction equipment, such as: 3SNS-A model grouting pump, JRD-ZJ600D model high-speed slurry mixer, automatic grouting recorder, and several hoses. The automatic grouting recorder can record the flow rate and volume of the grout.

[0020] See attached document Figure 3 , Figure 4 and Figure 5 In this embodiment, the collimator 1 is also provided with a plug 4, a plurality of extension rods 7 hinged to the plug 4, a limiting ring 8 passing through the extension rods 7, and a flaring ring 11 for opening the plurality of extension rods 7. During operation, the plug 4 is inserted into the cone 2 to seal the cone 2 when injecting slurry, preventing slurry from entering the cone 2 and reducing the cleaning burden on the cone 2; In addition, multiple extension rods 7 are arranged in a circular array around the central axis of the collimating tube 1. The flared ring 11 is placed inside the collimating tube 1 to open up the multiple extension rods 7, which drives the end of the limiting ring 8 to be inserted into the slurry outlet 3, thereby playing a limiting role and locking the plug 4 and multiple extension rods 7 along the axial direction of the collimating tube 1. After grouting is completed, the grouting device can be pulled out, and the straightening tube 1 can be unscrewed in reverse along the thread. The straightening tube 1 does not need to be tightened with threads. The multiple extension rods 7 can be closed by hand after removing the flaring ring 11, which can release the locking state of the plug 4, thus making it easy to remove. This effectively prevents grout from accumulating in the cone 2. The obstruction caused by the grout is negligible. There is no obvious jamming during the removal and placement process, which is conducive to the convenient cleaning of the grouting device.

[0021] Meanwhile, a silicone sleeve is bonded to the outside of the limiting ring 8, which adheres to the inner wall of the slurry outlet 3 to provide protection and prevent the limiting ring 8, slurry, or gravel from abrading the inner wall of the slurry outlet 3.

[0022] See attached document Figure 4 and Figure 6 The plug 4 is fitted with a sealing ring 5 that is interference-fitted with the cone 2. When the plug 4 is inserted into the cone 2, the sealing ring 5 adheres to the wall, thus achieving full sealing of the internal space of the cone 2. The top of the plug 4 has an embedded groove 6 that connects to the bottom of the extension rod 7. To facilitate the movement of the extension rod 7, a hinge rod is rotatably installed in the embedded groove 6 via a sealed bearing to connect to the bottom of the extension rod 7, so that the extension rod 7 can rotate forward or backward relative to the hinge rod when it is pushed.

[0023] See attached document Figure 4 , Figure 5 and Figure 7 The top edge of the extension rod 7, away from the slurry outlet 3, is integrally milled with a protrusion 9; To facilitate the placement of the flared ring 11, this embodiment also provides an inner spherical groove 10 in the middle of the protrusion 9. When the central axis of the flared ring 11 coincides with the central axis of the collimator 1, the flared ring 11 is aligned with the inner spherical groove 10, and multiple extension rods 7 are radially extended.

[0024] See attached document Figure 5 and Figure 7 In this embodiment, a ball joint 12 adapted to the inner spherical groove 10 is welded to the outside of the flared ring 11. In addition, the inner spherical groove 10 forms an opening at one end of the protrusion 9, which facilitates the ball joint 12 to enter the inner spherical groove 10 from the opening. After the flared ring 11 is inserted, the ball joint 12 is first offset from the protrusion 9 along the axial direction of the collimator 1 so that it can fall smoothly into the interval of the protrusion 9. Then the flared ring 11 is rotated clockwise so that the ball joint 12 enters the inner spherical groove 10 from the opening. It can support the adjacent extension rod 7 radially along the collimator 1, and the slurry will not cause the flared ring 11 to twist. This can lock multiple extension rods 7 after the inner spherical groove 10 and the ball joint 12 are engaged. Conversely, reversing the flared ring 11 causes the ball joint 12 to disengage from the inner spherical groove 10, thus releasing the locked state.

[0025] See attached document Figure 4 and Figure 5 There is a gap between the inner spherical groove 10 and the flared ring 11 to facilitate the flared ring 11 to enter between multiple extension rods 7. The edge of the inner spherical groove 10 has rounded corners, and the friction surface is small when the inner spherical groove 10 contacts the ball joint 12, which facilitates smooth insertion into the ball joint 12.

[0026] See attached document Figure 7 The ball joint 12 includes an integrally connected ball head and joint rod. The diameter of the ball head is smaller than the inner diameter of the inner spherical groove 10, which facilitates smooth insertion. Among them, when the ball head is inserted into the inner spherical groove 10, it is used to lock multiple extension rods 7 along the axial direction of the collimating tube 1. In addition, the section rod extends out of the inner spherical groove 10, leaving a gap for the flared ring 11 to move, thus avoiding severe friction between the flared ring 11 and the protrusion 9.

[0027] See attached document Figure 7 A lifting ring 13 is fixed inside the flared ring 11. When the flared ring 11 is placed, the lifting ring 13 can be hooked with a hook to suspend and insert it into the collimation tube 1, and the lifting ring 13 can be pulled tangentially with a hook to realize the forward or reverse rotation of the flared ring 11 without having to reach into the collimation tube 1 to operate the flared ring 11. The lifting ring 13 is horizontally offset from the slurry outlet 3 to avoid blocking the slurry from entering the slurry outlet 3.

[0028] The working principle of this utility model is as follows: When working, a vertical hole is pre-drilled in the dam, and the plug 4 is inserted into the cone 2, which drives multiple extension rods 7 into the collimation tube 1.

[0029] At the same time, the hook can be used to hook the lifting ring 13 and suspend it into the collimating tube 1, and the hook can be used to tangentially pull the lifting ring 13 to realize the forward or reverse rotation of the flared ring 11. There is no need to reach into the collimating tube 1 to operate the flared ring 11. The ball joint 12 is first offset from the protrusion 9 along the axial direction of the collimating tube 1 so that it can fall smoothly into the interval of the protrusion 9.

[0030] Then, the flaring ring 11 is rotated forward so that the ball joint 12 enters the inner spherical groove 10 from the opening. This allows it to support the adjacent extension rods 7 radially along the collimator 1, while the slurry does not cause the flaring ring 11 to twist. It also drives the end of the limiting ring 8 to insert into the slurry outlet 3, which serves as a limiting action. This allows the inner spherical groove 10 and the ball joint 12 to engage and lock multiple extension rods 7.

[0031] Then, using a flexible hose to connect the collimating pipe 1, the three sections of collimating pipe 1 are threaded together to form a longer grouting device. The cone 2 is inserted downwards into the drilled hole, and the pre-mixed filling grout in the grouting machine is drawn in by the grouting pump, flowing along... Figure 2 The slurry outlet 3 shown is pressurized and injected into the underground space.

[0032] The above description is merely an optional embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional methods in the field.

Claims

1. A grouting device for hydraulic construction, comprising a straightening tube (1), a cone (2) fixed to the port of the straightening tube (1), and a grout outlet (3) opened on the outside of the straightening tube (1), characterized in that, Also includes: The plug (4) is inserted into the cone (2); An extension rod (7) is connected to the plug (4), and multiple extension rods (7) are arranged in a circular array around the central axis of the collimating tube (1); A limiting ring (8) passes through the extension rod (7), and the end of the limiting ring (8) is inserted into the slurry outlet (3). A flared ring (11) is disposed inside the collimating tube (1) and the flared ring (11) is used to open up the plurality of extension rods (7).

2. The grouting device for hydraulic construction according to claim 1, characterized in that: A ball joint (12) is fixed to the outside of the flared ring (11); The ball joint (12) supports the adjacent extension rod (7) radially along the collimator (1).

3. A grouting device for hydraulic construction according to claim 1, characterized in that: A lifting ring (13) is fixed inside the flared ring (11); The lifting ring (13) is horizontally offset from the slurry outlet (3).

4. A grouting device for hydraulic construction according to claim 2, characterized in that: The top edge of the extension rod (7) away from the slurry outlet (3) is fixed with a protrusion (9); The protrusion (9) has an inner spherical groove (10) in the middle that is adapted to the ball joint (12), and the inner spherical groove (10) extends laterally through one end of the protrusion (9).

5. A grouting device for hydraulic construction according to claim 4, characterized in that: There is a gap between the inner spherical groove (10) and the flared ring (11), and the edge of the inner spherical groove (10) has rounded corners.

6. A grouting device for hydraulic construction according to claim 4, characterized in that: The ball joint (12) includes a ball head and a joint rod that are integrally connected together; When the ball head is inserted into the inner spherical groove (10), it is used to lock the multiple extension rods (7) along the axial direction of the collimating tube (1). The segment extends out of the inner spherical groove (10).

7. A grouting device for hydraulic construction according to claim 1, characterized in that: The plug (4) is fitted with a sealing ring (5) that is interference-fitted with the cone (2) on the outside. The top of the plug (4) has an embedded groove (6) that connects to the bottom of the extension rod (7).

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