Foundation backfill grouting pipe

Abstract

The invention discloses a foundation backfill grouting pipe which comprises a pipe body, the pipe body is provided with two opposite ends, and a plurality of grout outlet holes are formed in the pipe wall of the pipe body; the non-return plate is provided with a first side and a second side which are opposite to each other, the first side of the non-return plate is rotatably installed on the hole wall of the grout outlet hole through a hinge shaft, and a torsional spring used for twisting the non-return plate to enable the non-return plate to block the grout outlet hole is installed between the hinge shaft and the hole wall of the grout outlet hole; the counterweight conical head is coaxially connected to one end of the pipe body; and the rotating piece is used for mounting a slurry conveying pipeline of the grouting device and is coaxially connected to the other end of the pipe body. The foundation backfill grouting pipe solves the problem that grouting holes of a traditional foundation backfill grouting pipe are prone to being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a foundation backfill grouting pipe. Background Art

[0002] In the process of foundation backfill reinforcement, the grouting method is often used to inject cement slurry into the cracks of the soil layer. Grouting pipes are needed to inject cement slurry into the foundation so that the cement slurry flows, diffuses, fills, and consolidates in the cracks of the soil layer to form a stone body with certain strength and low permeability, so as to improve the bearing capacity and stability of the foundation. However, during the use of traditional grouting pipes, the grouting holes are easily blocked by mud blocks, resulting in uneven grouting, which affects the reinforcement effect. Summary of the invention

[0003] In order to overcome the defects of the prior art, a foundation backfill grouting pipe is provided to solve the problem that the grouting holes of the traditional foundation backfill grouting pipe are easily blocked.

[0004] In order to achieve the above object, a foundation backfill grouting pipe is provided, comprising:

[0005] A pipe body, wherein the pipe body has two opposite ends, and a pipe wall of the pipe body is provided with a plurality of slurry outlet holes;

[0006] A check plate, the check plate having a first side and a second side opposite to each other, the first side of the check plate being rotatably mounted on the hole wall of the pulp outlet hole through a hinge shaft, and a torsion spring for twisting the check plate so that the check plate blocks the pulp outlet hole is installed between the hinge shaft and the hole wall of the pulp outlet hole;

[0007] A counterweight cone head coaxially connected to one end of the tube body;

[0008] The rotating member used for installing the slurry conveying pipeline of the grouting device is coaxially connected to the other end of the pipe body.

[0009] Furthermore, a check plate is respectively provided on the hole walls on the opposite sides of the slurry outlet hole, and the two check plates at the slurry outlet hole block the slurry outlet hole.

[0010] Furthermore, both ends of the hinge shaft are rotatably connected to the hole wall, the torsion spring is movably sleeved on the hinge shaft, one end of the torsion spring is connected to the hole wall, and the other end of the torsion spring is installed on the check plate.

[0011] Furthermore, a transmission plate is connected to the first side of the check plate, and the other end of the torsion spring is connected to the transmission plate.

[0012] Furthermore, the rotating member is a rotary joint.

[0013] The beneficial effect of the present invention is that the foundation backfill grouting pipe of the present invention uses a check plate to block the grouting hole to prevent blockage and backflow, effectively solving the problem that the grouting hole of the traditional grouting pipe is easily blocked by mud blocks, and improving the grouting efficiency and uniformity.

[0014] The foundation backfill grouting pipe of the present invention rotates the pipe body through the rotating member to improve the fluidity of the slurry in the grouting bucket, prevents the clogging of the grouting hole, ensures the stability and continuity of the grouting process, and prolongs the service life of the grouting pipe.

[0015] The foundation backfill grouting pipe of the present invention has a counterweight cone head welded at the lower end of the pipe body, which can increase the deadweight of the foundation backfill grouting pipe and ensure that the foundation backfill grouting pipe remains stable during operation. In particular, during the grouting process, the foundation soil layer may be disturbed by the grouting pressure, and the counterweight cone head can effectively resist such disturbance, prevent the foundation backfill grouting pipe from tilting or moving, and ensure that the pipe body is always in the correct position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 It is a schematic structural diagram of a foundation backfill grouting pipe according to an embodiment of the present invention.

[0018] Figure 2 It is a partially enlarged schematic diagram of a foundation backfill grouting pipe according to an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the structure of the check plate according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] Reference Figures 1 to 3 As shown, the present invention provides a foundation backfill grouting pipe, comprising: a pipe body 1, a check plate 2, a counterweight cone head 3, and a rotating member 4.

[0023] In this embodiment, the pipe body 1 has two opposite ends. Both ends of the pipe body are open ends. The pipe wall of the pipe body 1 is provided with a plurality of slurry outlet holes 10. The plurality of slurry outlet holes are arranged in a matrix or plum blossom shape.

[0024] The check plate 2 has a first side and a second side opposite to each other. The first side of the check plate 2 is rotatably mounted on the hole wall of the slurry outlet hole 10 through a hinge shaft 21. A torsion spring 22 is installed between the hinge shaft 21 and the hole wall of the slurry outlet hole 10. The torsion spring 22 is used to twist the check plate 2 so that the check plate 2 blocks the slurry outlet hole 10, thereby preventing the external slurry or debris of the pipe body from entering the interior of the pipe body through the slurry outlet hole.

[0025] As a preferred embodiment, a check plate 2 is respectively disposed on the hole walls on opposite sides of the slurry outlet hole 10 of the pipe body. The two check plates 2 at the slurry outlet hole 10 block the slurry outlet hole 10.

[0026] See also Figure 3 As described above, both ends of the hinge shaft 21 are rotatably connected to the hole wall. The torsion spring 22 is movably sleeved on the hinge shaft 21. One end of the torsion spring 22 is connected to the hole wall. The other end of the torsion spring 22 is installed on the check plate 2.

[0027] As a preferred embodiment, a transmission plate 23 is connected to the first side of the check plate 2 , and the other end of the torsion spring 22 is connected to the transmission plate 23 .

[0028] The counterweight cone head 3 is coaxially connected to one end of the pipe body 1 .

[0029] In this embodiment, the counterweight cone head is in an inverted cone shape, and the outer diameter of the top of the counterweight cone head is adapted to the outer diameter of the pipe body.

[0030] The rotating member 4 is coaxially connected to the other end of the pipe body 1. The rotating member 4 is used to install the slurry conveying pipeline of the grouting device.

[0031] As a preferred embodiment, the rotating member 4 is a rotary joint.

[0032] The improved foundation backfill grouting pipe of the present invention is intended to solve the problem of grouting hole blockage in the prior art and to improve the effect and efficiency of foundation reinforcement. In the prior art, when a grouting pipe is used for cement grouting, since a plurality of grouting holes are provided on the pipe wall, in the early or late stage of grouting, when the grouting pipe is located at a low slurry discharge pressure of the grouting hole, the mud blocks inside the foundation are easy to reversely seep into the grouting pipe through the grouting holes, causing blockage and affecting subsequent grouting operations. In addition, during the process of inserting the grouting pipe into the soil layer, the mud blocks in the soil layer are easy to enter the pipe through the grouting holes, causing blockage of the grouting pipe and affecting its use. Similarly, when the grouting pipe is taken out after the grouting is completed, the cement slurry in the soil layer is also easy to flow back, affecting the grouting effect.

[0033] The foundation backfill grouting pipe of the present invention has a counterweight cone head welded at the lower end of the pipe body, which can increase the deadweight of the foundation backfill grouting pipe and ensure that the foundation backfill grouting pipe remains stable during operation. In particular, during the grouting process, the foundation soil layer may be disturbed by the grouting pressure, and the counterweight cone head can effectively resist such disturbance, prevent the foundation backfill grouting pipe from tilting or moving, and ensure that the pipe body is always in the correct position.

[0034] The inner wall of the pipe body is equipped with a check plate through a hinge shaft, and the check plate is welded with a torsion spring through a transmission plate. Figure 1 When the pressure inside the grouting pipe is increased (as shown by the arrow line in the figure), the check plate and the torsion spring can be pushed outward to swing, allowing the slurry to flow out. When the grouting pressure is low, the torsion spring can reset the check plate through its own torque force to prevent the grouting from flowing back.

[0035] The upper end of the pipe body is connected with a rotating member, which can drive the pipe body to rotate. The rotating member drives the foundation backfill grouting pipe to rotate, which helps prevent the grouting hole from being blocked. The rotating movement of the foundation backfill grouting pipe can drive soil particles and mud blocks away from the grouting hole, reducing the chance of them entering the grouting pipe. In addition, the rotating movement can also generate a certain centrifugal force during the grouting process, preventing cement slurry from accumulating around the grouting hole, thereby keeping the grouting hole unobstructed.

[0036] The foundation backfill grouting pipe of the present invention shields the grouting hole by a check plate to prevent blockage and backflow, effectively solves the problem that the grouting hole of the traditional grouting pipe is easily blocked by mud blocks, and improves the grouting efficiency and uniformity.

[0037] The foundation backfill grouting pipe of the present invention rotates the pipe body through the rotating member to improve the fluidity of the slurry in the grouting bucket, prevents the clogging of the grouting hole, ensures the stability and continuity of the grouting process, and prolongs the service life of the grouting pipe.

[0038] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A foundation backfill grouting pipe, characterized in that: include: A pipe body, wherein the pipe body has two opposite ends, and a pipe wall of the pipe body is provided with a plurality of slurry outlet holes; A check plate, the check plate having a first side and a second side opposite to each other, the first side of the check plate being rotatably mounted on the hole wall of the pulp outlet hole through a hinge shaft, and a torsion spring for twisting the check plate so that the check plate blocks the pulp outlet hole is installed between the hinge shaft and the hole wall of the pulp outlet hole; A counterweight cone head coaxially connected to one end of the tube body; The rotating member used for installing the slurry conveying pipeline of the grouting device is coaxially connected to the other end of the pipe body.

2. The foundation backfill grouting pipe according to claim 1, characterized in that: A check plate is respectively arranged on the hole walls on the opposite sides of the slurry outlet hole, and the two check plates at the slurry outlet hole block the slurry outlet hole.

3. The foundation backfill grouting pipe according to claim 2, characterized in that: Both ends of the hinge shaft are rotatably connected to the hole wall, the torsion spring is movably sleeved on the hinge shaft, one end of the torsion spring is connected to the hole wall, and the other end of the torsion spring is installed on the check plate.

4. The foundation backfill grouting pipe according to claim 3, characterized in that: A transmission plate is connected to a first side of the check plate, and the other end of the torsion spring is connected to the transmission plate.

5. The foundation backfill grouting pipe according to claim 1, characterized in that: The rotating member is a rotary joint.

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