Foundation pit side wall fat groove backfill grouting pipe assembly

Abstract

The utility model relates to the technical field of building construction discloses a kind of backfilling grouting pipe assembly of foundation pit side wall fertilizer groove, including a kind of backfilling grouting pipe assembly of foundation pit side wall fertilizer groove, including pipeline assembly, the outer wall of pipeline assembly is connected with connecting assembly with screw thread, the inner wall of pipeline assembly is connected with drill bit assembly with screw thread, the top outer wall of pipeline assembly is connected with grouting assembly with screw thread, the top outer wall of grouting assembly is connected with stirring assembly with sliding connection.The utility model in the present application, by rotating protruding screw thread is designed on the sleeve upper and lower side outer wall, and it is evenly provided with hole for out of grout on its surface four quarters, again set recessed thread on the inner wall of connecting block upper and lower, and set limit ring in connecting block inside, and flexible rubber material is sleeved on the outer surface of limit ring, to realize grouting uniform and sealing ring and fixed sleeve adopt screw thread connection or sleeve connection mode, the effect of being convenient to disassemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a grouting pipe assembly for backfilling trenches in foundation pit sidewalls. Background Technology

[0002] Grouting pipes are pipeline systems used to inject grout, such as cement grout or chemical grout, into strata, structures, or specific spaces. They are widely used in civil engineering, mining engineering, water conservancy engineering, tunnel engineering, foundation treatment, and other fields.

[0003] In the existing technology, the grouting pipe assembly for backfilling the side wall of some foundation pits is constructed by opening holes in the outer wall of the pipe and pre-embedding it in the rammed earth, leaving a hole at the top slightly higher than the foundation, and then using a mixer to mix cement and pour it into the grouting pipe opening.

[0004] However, in the existing technology, some foundation pit backfill grouting pipe assemblies are prone to grout leakage at the connection points, resulting in material waste. To address this issue, a foundation pit sidewall backfill grouting pipe assembly is proposed to solve the above problem. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a grouting pipe assembly for backfilling trenches in foundation pit sidewalls, aiming to improve the problems of easy grout leakage at the connection between the grouting pipe and the casing in the prior art, which leads to grout waste and insufficient grouting pressure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a grouting pipe assembly for backfilling trenches in foundation pit sidewalls, comprising a pipe assembly, a connecting assembly threaded to the outer wall of the pipe assembly, a drill bit assembly threaded to the inner wall of the pipe assembly, a grouting assembly threaded to the top outer wall of the pipe assembly, a mixing assembly slidably connected to the top outer wall of the grouting assembly, the connecting assembly comprising a sleeve b, a concave thread a fixedly connected to the inner wall of the sleeve b, a limiting ring fixedly connected to the inner wall of the sleeve b, and a sealing gasket slidably connected to the outer wall of the limiting ring;

[0007] As a further description of the above technical solution: the pipe assembly includes a sleeve a, and four slurry outlets a are designed around the sleeve a, and the slurry outlets a are designed to be elongated. Both ends of the outer wall of the sleeve a are fixedly connected with protruding threads.

[0008] As a further description of the above technical solution: the drill bit assembly includes a sleeve c, the inner wall of the sleeve c is designed with concave threads b, the bottom of the sleeve c is designed as a cone, and there are slurry outlets b on all four sides, the slurry outlets b being circular holes.

[0009] As a further description of the above technical solution: the grouting assembly includes a sleeve d, a feed port is fixedly connected to the left side of the sleeve d, the bottom of the inner wall of the sleeve d is designed with a concave thread c, and the top of the sleeve d is designed with a chamfer.

[0010] As a further description of the above technical solution: the stirring assembly includes a long connecting rod, a spiral blade is fixedly connected to the outer wall of the long connecting rod, a reducer is fixedly connected to the top of the long connecting rod, a motor is fixedly connected to the top of the reducer, and the outer shell of the reducer is designed with chamfers;

[0011] As a further description of the above technical solution: the bottom of the grouting assembly is threadedly connected to the top of the pipe assembly, the top of the connecting assembly is threadedly connected to the bottom of the pipe assembly, the top of the drill bit assembly is threadedly connected to the bottom of another pipe assembly, and pipe assemblies can be threadedly connected to both the top and bottom of the connecting assembly.

[0012] As a further description of the above technical solution: there may be multiple pipe assemblies, which are threadedly connected by the concave thread a inside the connecting assembly, and the sealing gasket is made of flexible rubber material.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, a rotating protruding thread is designed on the upper and lower outer walls of the sleeve, and holes are opened around its surface for grout discharge. Concave threads are set on the upper and lower inner walls of the connecting block, and a limiting ring is set inside the connecting block to prevent the connection from being unstable due to the threads being ground when the device is inserted into the foundation. Flexible rubber material is covered on the outer surface of the limiting ring, and multiple sleeves and connecting blocks are connected. The lower part of the sleeve is connected to it with a drill bit with the same protruding thread to press down the grouting pipe. This achieves uniform grouting and the sealing ring and the fixed sleeve are connected by threads or sleeves, which facilitates disassembly and maintenance.

[0015] 2. In this utility model, the motor is started and its operating speed is reduced by the reduction gear inside the reducer. Then, a long rod is connected, and a spiral blade rotates around the outer wall of the long rod. The rotation of the spiral blade stirs the cement entering the sleeve, thereby achieving uniform slurry output without sedimentation, improving the density and uniformity of the backfill soil, and reducing the risk of local settlement or voids. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a backfill grouting pipe assembly for the sidewall of a foundation pit, as proposed in this utility model.

[0017] Figure 2This is a schematic diagram of the pipe assembly of the backfill grouting pipe assembly for the foundation pit sidewall of the present invention.

[0018] Figure 3 This is a schematic diagram of the connection component of the backfill grouting pipe assembly for the foundation pit sidewall of the present invention.

[0019] Figure 4 A cross-sectional schematic diagram of the connection component of the backfill grouting pipe assembly for the foundation pit sidewall trench proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the drill bit assembly of a backfill grouting pipe assembly for the sidewall of a foundation pit, as proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the grouting assembly of a backfill grouting pipe assembly for the sidewall of a foundation pit, as proposed in this utility model.

[0022] Figure 7 This is a cross-sectional schematic diagram of a grouting assembly for backfilling a trench in a foundation pit, as proposed in this utility model.

[0023] Figure 8 This is a schematic diagram of the mixing assembly of a backfill grouting pipe assembly for the sidewall of a foundation pit, as proposed in this utility model.

[0024] Legend:

[0025] 1. Pipe assembly; 2. Connection assembly; 3. Drill bit assembly; 4. Grouting assembly; 5. Mixing assembly; 101. Sleeve a; 102. Grout outlet a; 103. Convex thread; 201. Sleeve b; 202. Concave thread a; 203. Limiting ring; 204. Sealing gasket; 301. Sleeve c; 302. Grout outlet b; 303. Concave thread b; 401. Sleeve d; 402. Feed inlet; 403. Concave thread c; 501. Long connecting rod; 502. Spiral blade; 503. Reducer; 504. Motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5, Figure 6 This utility model provides an embodiment of a grouting pipe assembly for backfilling trenches in foundation pits, comprising a pipe assembly 1, a connecting assembly 2 threadedly connected to the outer wall of the pipe assembly 1, a drill bit assembly 3 threadedly connected to the inner wall of the pipe assembly 1, a grouting assembly 4 threadedly connected to the top outer wall of the pipe assembly 1, and a mixing assembly 5 slidably connected to the top outer wall of the grouting assembly 4. The connecting assembly 2 includes a sleeve b201, a concave thread a202 fixedly connected to the inner wall of the sleeve b201, and a limiting ring 203 fixedly connected to the inner wall of the sleeve b201 to limit the forced displacement of the upper and lower sleeves b201 under pressure. A sealing gasket 204 slidably connected to the outer wall of the limiting ring 203 is made of flexible rubber material for sealing. The pipe assembly 1 includes a sleeve a101, a sleeve a10... The sleeve a101 has four grout outlets a102 on all four sides for grout discharge. The grout outlets a102 are designed to be elongated. The outer walls of the sleeve a101 are fixedly connected with protruding threads 103 at both ends. The drill bit assembly 3 includes a sleeve c301. The inner wall of the sleeve c301 is designed with concave threads b303. The bottom of the sleeve c301 is designed to be conical to facilitate pressing into the foundation. Grout outlets b302 are opened on all four sides. The grout outlets b302 are circular holes for grout discharge. The grouting assembly 4 includes a sleeve d401. The left side of the sleeve d401 is fixedly connected with a feed port 402. The bottom of the inner wall of the sleeve d401 is designed with concave threads c403. The top of the sleeve d401 is designed with a chamfer to prevent cuts to the operator, thereby effectively preventing grout leakage, improving grouting efficiency, and reducing construction costs.

[0028] Reference Figure 7 , Figure 8 The mixing assembly 5 includes a long connecting rod 501, with a spiral blade 502 fixedly connected to the outer wall of the long connecting rod 501. A reducer 503 is fixedly connected to the top of the long connecting rod 501, and a motor 504 is fixedly connected to the top of the reducer 503. The outer shell of the reducer 503 is designed with a chamfer. The bottom of the grouting assembly 4 is threadedly connected to the top of the pipe assembly 1, the top of the connecting assembly 2 is threadedly connected to the bottom of the pipe assembly 1, and the top of the drill bit assembly 3 is threadedly connected to the bottom of another pipe assembly 1. The pipe assembly 1 can be threadedly connected to both the top and bottom through the connecting assembly 2. There can be multiple pipe assemblies 1, which are threadedly connected through the concave thread a202 inside the connecting assembly 2. The sealing gasket 204 is made of flexible rubber material, which makes the grout evenly distributed in the circumferential direction, improves the compaction and uniformity of the backfill soil, and reduces the risk of local settlement or voids.

[0029] Working principle: The sleeve c301 in the drill bit assembly 3 is threadedly connected to the convex thread 103 at the bottom of the sleeve a101 in the first pipe assembly 1 through the concave thread b303 on its inner wall. The drill bit assembly 3 is drilled into the soil and the circular grout outlet b302 is used to initially release grout. Then, according to the depth of the trench, multiple pipe assemblies 1 are connected end to end through the sleeve b201 in the connecting assembly 2. When connecting, the concave thread a202 on the inner wall of the sleeve b201 is aligned with the convex thread 103 of the adjacent pipe assembly 1, and the threaded connection is achieved by rotation. At the same time, the limiting ring 203 and the flexible rubber sealing gasket 204 on the inner wall of the connecting assembly 2 ensure the connection is sealed.

[0030] After the pipeline assembly is completed, the sleeve d401 in the grouting component 4 is threadedly connected to the convex thread 103 on the top of the first pipeline component 1 through the concave thread c403 at the bottom of its inner wall. During grouting, the grout is injected from the inlet 402 of the grouting component 4 and is uniformly mixed under the action of the spiral blade 502 of the mixing component 5. Then, it is uniformly released into the soil of the backfilling trench through the long strip-shaped grout outlet a102 of the pipeline component 1 to achieve backfilling and reinforcement.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grouting pipe assembly for backfilling trenches in foundation pit sidewalls, comprising a pipe assembly (1), characterized in that: The outer wall of the pipe assembly (1) is threaded with a connecting assembly (2), the inner wall of the pipe assembly (1) is threaded with a drill assembly (3), the top outer wall of the pipe assembly (1) is threaded with a grouting assembly (4), the top outer wall of the grouting assembly (4) is slidably connected with a mixing assembly (5), the connecting assembly (2) includes a sleeve b (201), the inner wall of the sleeve b (201) is fixedly connected with a concave thread a (202), the inner wall of the sleeve b (201) is fixedly connected with a limiting ring (203), and the outer wall of the limiting ring (203) is slidably connected with a sealing gasket (204).

2. The grouting pipe assembly for backfilling trenches in foundation pit sidewalls according to claim 1, characterized in that: The pipe assembly (1) includes a sleeve a (101), and four slurry outlets a (102) are designed around the sleeve a (101). The slurry outlets a (102) are designed to be elongated. Both ends of the outer wall of the sleeve a (101) are fixedly connected with protruding threads (103).

3. The grouting pipe assembly for backfilling trenches in foundation pit sidewalls according to claim 1, characterized in that: The drill bit assembly (3) includes a sleeve c (301), the inner wall of which is designed with concave threads b (303), the bottom of which is designed as a cone, and slurry outlet b (302) is opened on all four sides, the slurry outlet b (302) being a circular hole.

4. The grouting pipe assembly for backfilling trenches in foundation pit sidewalls according to claim 1, characterized in that: The grouting assembly (4) includes a sleeve d (401), with a feed port (402) fixedly connected to the left side of the sleeve d (401). The bottom of the inner wall of the sleeve d (401) is designed with a concave thread c (403), and the top of the sleeve d (401) is designed with a chamfer.

5. The grouting pipe assembly for backfilling trenches in foundation pit sidewalls according to claim 1, characterized in that: The stirring assembly (5) includes a long connecting rod (501), a spiral blade (502) is fixedly connected to the outer wall of the long connecting rod (501), a reducer (503) is fixedly connected to the top of the long connecting rod (501), a motor (504) is fixedly connected to the top of the reducer (503), and the outer shell of the reducer (503) is designed with chamfers.

6. The grouting pipe assembly for backfilling trenches in foundation pit sidewalls according to claim 1, characterized in that: The bottom of the grouting assembly (4) is threaded to the top of the pipe assembly (1), the top of the connecting assembly (2) is threaded to the bottom of the pipe assembly (1), and the top of the drill bit assembly (3) is threaded to the bottom of another pipe assembly (1). The pipe assembly (1) can be threaded to both the top and bottom through the connecting assembly (2).

7. The grouting pipe assembly for backfilling trenches in foundation pit sidewalls according to claim 1, characterized in that: The pipe assembly (1) may be multiple and is threadedly connected by the concave thread a (202) inside the connecting assembly (2), and the sealing gasket (204) is made of flexible rubber material.

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