Cast-in-place pile guide pipe stopcock device

Abstract

The utility model discloses a cast-in-place pile guide pipe waterproof plug device which comprises a circular chuck, a gravity guide body and a hanging ring, the circular chuck is fixedly embedded in a discharging port in the bottom end of a hopper barrel, the diameter of the circular chuck is larger than the inner diameter of the discharging port in the bottom end of the hopper barrel, and the circular chuck is used for blocking the discharging port in the bottom end of the hopper barrel. A gravity guide body is fixed to the bottom end of the circular chuck, the gravity center of the gravity guide body and the gravity center of the circular chuck are both located on the axis of the hopper barrel, and the gravity guide body can guide the circular chuck in a suspended state in place and can enable the circular chuck to clamp the hopper barrel through the gravity of the gravity guide body. The utility model has the advantages of simple structure, simple production and manufacturing, simple and convenient construction process, low manufacturing and construction cost, and can be recycled and reused, the pile forming quality of the cast-in-place pile is ensured, the construction progress is greatly accelerated, and the construction cost can be effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place concrete pile construction, and particularly relates to a water isolation plug device for a cast-in-place pile conduit. Background Art

[0002] In the existing cast-in-place pile industry, underwater concrete pouring has always accounted for a very large proportion. During the construction process of underwater concrete, in addition to parameters such as concrete mix ratio, water content, and slump, how to avoid segregation, dispersion, etc. of the initial poured concrete after it enters water (or mud) through the conduit is the top priority for ensuring the pile body quality. When constructing the concrete pouring of a cast-in-place concrete pile at the construction site, a water isolation ball needs to be placed in advance at the upper port part of the conduit before pouring the concrete, so as to isolate and block the concrete from the mud in the pipe, thereby ensuring the concrete mix ratio and pouring quality. However, during the construction process of using a conventional water isolation ball, the concrete residue on the inner wall of the pipe is often not cleaned up in time, resulting in the water isolation ball being unable to be discharged normally or being damaged and deformed, thus unable to play an effective role in isolating and blocking the mud, which greatly affects the pile forming quality and construction progress of the cast-in-place pile. Content of the Utility Model

[0003] The purpose of the utility model is to provide a water isolation plug device for a cast-in-place pile conduit to solve the technical problems described in the background art.

[0004] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0005] A water isolation plug device for a cast-in-place pile conduit includes a circular chuck, a gravity guide body, and a lifting ring. The circular chuck is embedded at the discharge port at the bottom end of the hopper cylinder. The diameter of the circular chuck is larger than the inner diameter of the discharge port at the bottom end of the hopper cylinder, and is used to block the discharge port at the bottom end of the hopper cylinder. A lifting ring is fixed at the top end of the circular chuck, and a gravity guide body is fixed at the bottom end of the circular chuck. The center of gravity of the gravity guide body and the center of gravity of the circular chuck are both located on the axis of the hopper cylinder. The gravity guide body can guide the suspended circular chuck into place and can make the circular chuck tightly clamp the hopper cylinder through its own gravity.

[0006] Preferably, the gravity guide body is of an inverted conical structure, and the axis of the gravity guide body is collinear with the axis of the circular chuck.

[0007] Preferably, the gravity guide body includes a housing and a filler filled in the housing.

[0008] Preferably, the upper diameter of the gravity guide body is 1 - 2 cm smaller than the inner diameter of the conduit.

[0009] Preferably, a flexible sealing gasket is arranged on the outer edge of the circular chuck.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model sets a water stopper at the connection position between the conduit and the hopper barrel to seal the discharge port of the hopper barrel, isolates the concrete slurry in the hopper barrel from the mud in the conduit, and controls the water stopper through a lifting rope connected to a lifting ring. When the concrete in the hopper barrel reaches the initial concrete volume, a lifting machine is used to lift the water stopper through the lifting rope. The concrete in the hopper barrel flows rapidly along the conduit under the action of the pressure difference, and then the mud and groundwater in the conduit are quickly and effectively discharged, thereby ensuring the quality of the cast-in-place piles and greatly accelerating the construction progress.

[0012] 2. The utility model has a simple structure. The main body is made of steel with a certain strength by welding. The production is simple, the construction process is simple and convenient, the production and construction costs are low, and it can be recycled and reused. Under the premise of ensuring the construction quality, the construction cost can be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or other aspects and advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0014] Figure 1 It is a structural schematic diagram of a bored pile conduit water stopper device involved in the utility model;

[0015] Figure 2 The utility model is a structural schematic diagram of a bored pile conduit water stopper device in use state.

[0016] Figure numerals: 1. hopper barrel; 101. hopper straight barrel section; 102. hopper conical barrel section; 2. water stopper; 201. circular chuck; 202. gravity guide body; 203. lifting ring; 3. lifting rope; 4. catheter. DETAILED DESCRIPTION

[0017] Hereinafter, an embodiment of a bored pile conduit water stopper device of the utility model will be described with reference to the accompanying drawings. The embodiments recorded herein are specific embodiments of the utility model, which are used to illustrate the concept of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation mode of the utility model and the scope of the utility model. In addition to the embodiments recorded herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, which include technical solutions that adopt any obvious replacement and modification of the embodiments recorded herein.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "front", "rear", "left", "right", "top", "bottom", "upper", "lower", "inner", "outer", "horizontal", "vertical", "upright", "oblique", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] The drawings in this specification are schematic diagrams to assist in illustrating the concept of the present utility model, schematically showing the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structures of the components in the embodiments of the present utility model, the drawings are not drawn in the same proportion. The same reference numerals are used to represent the same parts.

[0020] The principles and features of the present utility model will be described below in conjunction with the drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model. The following is in conjunction with Figure 1-2 , and a further detailed description of the preferred embodiments of the present utility model is given as follows:

[0021] As Figure 1-2 shown, a preferred cast-in-place pile conduit water-stop plug device of the present utility model includes a circular chuck 201, a gravity guide 202 and a lifting ring 203. The circular chuck 201 is fixedly embedded at the discharge port at the bottom end of the hopper barrel 1. The diameter of the circular chuck 201 is larger than the inner diameter of the discharge port at the bottom end of the hopper barrel 1, and is used to block the discharge port at the bottom end of the hopper barrel 1. A lifting ring 203 is fixed to the top end of the circular chuck 201, and a gravity guide 202 is fixed to the bottom end of the circular chuck 201. The center of gravity of the gravity guide 202 and the center of gravity of the circular chuck 201 are both located on the axis of the hopper barrel 1. The gravity guide 202 can guide the suspended circular chuck 201 into place and can make the circular chuck 201 tightly clamp the hopper barrel 1 by its own gravity;

[0022] The circular chuck 201 is made of steel plate, and its thickness is at least 5 mm to ensure sufficient strength. Its diameter needs to be at least 50 mm larger than the diameter of the conduit 4 to ensure that it can effectively block the discharge port of the hopper barrel 1;

[0023] The lifting ring 203 is made of a round steel with a diameter of φ10 mm. The lifting ring 203 is welded and fixed to the middle of the top end of the circular chuck 201 to cooperate with the lifting rope 3 to control and adjust the position of the circular chuck 201;

[0024] Considering the advantages of the conical structure in gravity guidance, the gravity guide 202 should preferably be designed as an inverted conical structure, and the axis of the gravity guide 202 should be collinear with the axis of the circular chuck 201. Among them, the gravity guide 202 can be set in the form of an integral solid steel, or in the form of a steel hollow shell filled with internal counterweight filler. Considering the convenience of production and cost reduction, the gravity guide 202 should preferably be set in the structural form including a shell and the filler filled in the shell. The shell is made of steel plate, and its thickness is at least 5 mm to ensure that it has sufficient strength. The internal filler can be selected according to the actual situation on site. Preferably, concrete or other solid fillers are used to densely fill the inside of the steel shell of the gravity guide 202. When using concrete for filling, the concrete can be first poured into the fabricated gravity guide 202, and after the concrete solidifies, its upper opening can be welded and fixed to the circular chuck 201;

[0025] In order to ensure that the circular chuck 201 can better fit the hopper barrel 1 and prevent the circular chuck 201 from being skewed during the installation stage, the diameter of the upper opening of the gravity guide 202 should preferably be set to be 1-2 cm smaller than the inner diameter of the conduit 4. A larger-sized gravity guide 202 can better play its gravity guiding role and can also provide a greater gravity to clamp the bottom hopper body of the hopper barrel 1 by the circular chuck 201. Moreover, the gravity guide 202 with a size close to the inner diameter of the conduit 4 can minimize the skewing degree of the circular chuck 201 while ensuring that the gravity guide 202 can be placed into the conduit 4;

[0026] Since there will inevitably be a problem that residues are not cleaned up completely on the inner wall of the hopper barrel 1 and the circular chuck 201 after being used for a period of time, in order to ensure that the circular chuck 201 made of steel can effectively fit the side wall of the hopper barrel 1 to achieve sealing, a flexible sealing gasket should preferably be added around the outer edge of the circular chuck 201. The flexible sealing gasket can be made of rubber gasket. The flexible sealing gasket can adapt to the uneven pitted surface problem caused by the residues through its own extrusion deformation ability, so that there is no leakage gap between the circular chuck 201 and the wall surface of the hopper barrel 1.

[0027] During actual construction, first use a hoisting machine to hoist the hopper barrel 1 to the upper opening of the conduit 4 and connect and fix the two. The hopper barrel 1 includes a hopper straight barrel section 101 and a hopper conical barrel section 102 that are integrally connected from top to bottom. After installation, the discharge port at the lower opening of the hopper conical barrel section 102 is connected and locked to the upper opening of the conduit 4. Then, tie and fix the lifting rope 3 of the hoisting machine to the lifting ring 203 of the water-stop plug 2. Then, operate the hoisting machine to suspend and position the circular chuck 201 under the guidance of the gravity guiding body 202 and clamp it on the hopper conical barrel section 102 of the hopper barrel 1 near the discharge port. Due to the gravity of the gravity guiding body 202, the circular chuck 201 can be tightly attached to the inner wall of the hopper conical barrel section 102 to achieve sealing. Then, according to the initial pouring volume of the concrete, calculate the volume of concrete that should be stored in the hopper barrel 1. After the volume reaches the standard, lift the water-stop plug 2 away by the hoisting machine. The concrete will quickly flow down along the conduit 4 under its own gravity, thereby quickly and effectively discharging the slurry and groundwater in the conduit 4 and avoiding concrete segregation. Then continue to pour the subsequent concrete through the hopper barrel 1. During the concrete pouring process, the depth of the conduit 4 buried in the concrete should be 2 - 6m. It is strictly prohibited to lift the conduit 4 out of the concrete pouring surface. When the concrete pouring is completed, the over-pouring depth should be 0.8 - 1m.

[0028] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bored pile conduit water stopper device, characterized in that: The invention comprises a circular chuck (201), a gravity guide body (202) and a lifting ring (203); the circular chuck (201) is embedded at the discharge port at the bottom end of the hopper barrel (1); the diameter of the circular chuck (201) is larger than the inner diameter of the discharge port at the bottom end of the hopper barrel (1) and is used to block the discharge port at the bottom end of the hopper barrel (1); a lifting ring (203) is fixed at the top end of the circular chuck (201), and a gravity guide body (202) is fixed at the bottom end of the circular chuck (201); the center of gravity of the gravity guide body (202) and the center of gravity of the circular chuck (201) are both located on the axis of the hopper barrel (1); the gravity guide body (202) can guide the circular chuck (201) in a suspended state into position, and can clamp the circular chuck (201) to the hopper barrel (1) by its own gravity.

2. A bored pile conduit water stopper device according to claim 1, characterized in that: The gravity guide body (202) is an inverted cone-shaped structure, and the axis of the gravity guide body (202) is colinear with the axis of the circular chuck (201).

3. A bored pile conduit water stopper device according to claim 2, characterized in that: The gravity guide body (202) comprises an outer shell and a filler filled in the outer shell.

4. A bored pile conduit water stopper device according to claim 2, characterized in that: The upper diameter of the gravity guide body (202) is 1-2 cm smaller than the inner diameter of the catheter (4).

5. The bored pile conduit water stopper device according to claim 1, characterized in that: The outer edge of the circular chuck (201) is provided with a circle of flexible sealing pad.

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