CN215907442U - Self-sealing grouting pipe - Google Patents
Self-sealing grouting pipe Download PDFInfo
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- CN215907442U CN215907442U CN202122052399.6U CN202122052399U CN215907442U CN 215907442 U CN215907442 U CN 215907442U CN 202122052399 U CN202122052399 U CN 202122052399U CN 215907442 U CN215907442 U CN 215907442U
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- grouting
- grouting pipe
- pipe
- return baffle
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Abstract
The utility model discloses a self-closed grouting pipe, which comprises an inner grouting pipe and an outer grouting pipe, wherein the inner grouting pipe is connected with a grouting sleeve, the outer grouting pipe is coaxially connected with the inner grouting pipe, a non-return baffle plate with the diameter larger than the inner diameter of the inner grouting pipe is arranged in the outer grouting pipe, and the upper end of the non-return baffle plate is rotatably connected with the upper inner wall surface of the outer grouting pipe; when the grouting nozzle is inserted into the outer grouting pipe, the grouting nozzle pushes the non-return baffle to rotate towards the direction close to the upper inner wall surface, and the grouting nozzle is communicated with the inner grouting pipe; when the grouting nozzle is separated from the outer grouting pipe, the non-return baffle rotates towards the direction far away from the upper inner wall surface until the non-return baffle is perpendicular to the axis of the outer grouting pipe. Because the non-return baffle can carry out self-sealing to interior grout pipe, interior grout pipe shutoff is rapid, has avoided grouting material to leak effectively, has guaranteed slip casting construction quality, has reduced the whole activity duration and the cooperation manual work of slip casting construction simultaneously, has improved slip casting efficiency, has reduced the slip casting cost.
Description
Technical Field
The utility model relates to the technical field of grouting, in particular to a self-closed grouting pipe.
Background
In the assembly type building grouting construction, grouting materials are injected into a grouting sleeve through a grouting pipe under the pressure of a grouting pressure pump, and when the grouting nozzle of the grouting pressure pump is pulled out after the grouting construction is finished, a constructor is required to use a wooden plug or a rubber plug to block the grouting pipe. The diameter of the wooden plug or the rubber plug is slightly larger than the inner diameter of the grouting pipe, and the wooden plug or the rubber plug is hammered by a hammer and plugged into the grouting pipe.
Because a certain time is needed for pulling out the grouting nozzle to block the grouting pipe, the grouting material in the grouting pipe leaks out in the time, so that the grouting material in the grouting sleeve sinks, the cavity of the grouting sleeve is formed, and the joint performance of the grouting sleeve is reduced; meanwhile, the traditional wooden plug is mostly processed on the spot by constructors, the diameter of the wooden plug is possibly not matched with the inner diameter of the grouting pipe, and then the plugging is not tight, and the grouting material leaks outwards.
In summary, how to avoid the leakage of the grouting material and improve the grouting construction quality is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a self-sealing grouting pipe, in which a stop baffle can automatically seal an inner grouting pipe after a grouting nozzle is pulled out to prevent grouting from leaking, so as to greatly improve grouting construction quality.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a self-sealing grouting pipe comprises an inner grouting pipe and an outer grouting pipe, wherein the inner grouting pipe is used for being connected with a grouting sleeve, the outer grouting pipe is coaxially connected with the inner grouting pipe, a non-return baffle plate with the diameter larger than the inner diameter of the inner grouting pipe is arranged in the outer grouting pipe, and the upper end of the non-return baffle plate is rotatably connected with the upper inner wall surface of the outer grouting pipe;
when the grouting nozzle is inserted into the outer grouting pipe, the grouting nozzle pushes the non-return baffle to rotate towards the direction close to the upper inner wall surface, and the grouting nozzle is communicated with the inner grouting pipe;
when the grouting nozzle is separated from the outer grouting pipe, the non-return baffle rotates towards the direction far away from the upper inner wall surface until the non-return baffle is perpendicular to the axis of the outer grouting pipe.
Preferably, the upper inner wall surface of the outer grouting pipe is provided with a limiting piece for limiting the rotation angle of the check baffle.
Preferably, the limiting part comprises a limiting iron wire with two ends connected with the upper inner wall surface, and the diameter of the limiting iron wire is larger than or equal to 0.7 mm.
Preferably, the diameter of the non-return baffle is the average value of the inner diameter of the inner grouting pipe and the inner diameter of the outer grouting pipe.
Preferably, the diameter of the check baffle is smaller than the inner diameter of the outer grouting pipe by 2 mm.
Preferably, the check baffle comprises a thin steel plate having a thickness greater than or equal to 1 mm.
Preferably, the upper end of the non-return baffle is provided with a connecting iron wire, and two ends of the connecting iron wire are connected with the upper inner wall surface of the outer grouting pipe.
The self-sealing grouting pipe is connected to the grouting sleeve, when grouting starts, a constructor inserts the grouting nozzle into the outer grouting pipe, the grouting nozzle pushes the non-return baffle to rotate upwards so as to enable the grouting nozzle to be communicated with the inner grouting pipe, and grouting materials can be injected into the grouting sleeve through the inner grouting pipe; after grouting is completed, a constructor extracts the grouting nozzle from the outer grouting pipe, the non-return baffle rotates downwards under the action of self gravity and the pressure of grouting materials until the non-return baffle is perpendicular to the axis of the outer grouting pipe, the inner grouting pipe is sealed by the non-return baffle at the moment, and the grouting materials cannot leak out.
Therefore, after the grouting nozzle of the self-sealing grouting pipe is pulled out, the inner grouting pipe can be automatically sealed by the check baffle, compared with the traditional manual blockage, the inner grouting pipe is quickly blocked, grouting material is effectively prevented from leaking, a slurry cavity in the grouting sleeve is prevented, and grouting construction quality is guaranteed; the overall operation time of grouting construction is reduced, and the grouting efficiency is improved; required cooperation manual work when having reduced slip casting construction is favorable to reducing the cost of labor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a self-sealing grouting pipe according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1 in a front elevation direction;
fig. 3 is a schematic cross-sectional view of fig. 1 in a side view.
In fig. 1-3:
1 is an outer grouting pipe, 2 is an inner grouting pipe, 3 is a stop baffle, 4 is a limiting iron wire, and 5 is a connecting iron wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a self-sealing grouting pipe, and the stop baffle can automatically seal the inner grouting pipe after the grouting nozzle is pulled out to prevent grouting from leaking, so that the grouting construction quality is greatly improved.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a self-sealing grouting pipe according to an embodiment of the present invention; FIG. 2 is a schematic cross-sectional view of FIG. 1 in a front elevation direction; fig. 3 is a schematic cross-sectional view of fig. 1 in a side view.
The utility model provides a self-sealing grouting pipe, which comprises an inner grouting pipe 2 connected with a grouting sleeve and an outer grouting pipe 1 coaxially connected with the inner grouting pipe 2, wherein a non-return baffle 3 with the diameter larger than the inner diameter of the inner grouting pipe 2 is arranged in the outer grouting pipe 1, and the upper end of the non-return baffle 3 is rotatably connected with the upper inner wall surface of the outer grouting pipe 1; when the grouting nozzle is inserted into the outer grouting pipe 1, the grouting nozzle pushes the non-return baffle 3 to rotate towards the direction close to the upper inner wall surface, and the grouting nozzle is communicated with the inner grouting pipe 2; when the grouting nozzle is separated from the outer grouting pipe 1, the non-return baffle 3 rotates towards the direction far away from the upper inner wall surface until the non-return baffle 3 is vertical to the axis of the outer grouting pipe 1.
It should be noted that the upper inner wall surface of the outer grout pipe 1 refers to the inner surface of the semicircular surface of the outer grout pipe 1 higher than the horizontal surface passing through the axis when the self-sealing type grout pipe is upright as shown in fig. 1.
Wherein, the outer grouting pipe 1 is used for being inserted with a grouting nozzle; the inner grouting pipe 2 is connected to a grouting opening of the grouting sleeve, and the outer diameter of the inner grouting pipe 2 is determined according to the size of the grouting sleeve and the diameter of the grouting opening in the grouting sleeve.
The non-return baffle 3 is arranged in the outer grout pipe 1, and the non-return baffle 3 can rotate relatively in the outer grout pipe 1, so that the diameter of the non-return baffle 3 is smaller than the inner diameter of the outer grout pipe 1. And because the diameter of the non-return baffle 3 is larger than the inner diameter of the inner grouting pipe 2, the inner diameter of the outer grouting pipe 1 is d1, the inner diameter of the inner grouting pipe 2 is d2, and the diameter of the non-return baffle 3 is d3, the relationship between the three satisfies d1 > d3 > d 2.
Preferably, the diameter of the non-return baffle 3 may be set to be the average of the inner diameter of the inner grout pipe 2 and the inner diameter of the outer grout pipe 1.
It should be noted that, the change of the inner diameter of the outer grout pipe 1 and the inner grout pipe 2 is too large, which can lead to the stress concentration on the connecting surface of the two pipes on the one hand, and the gap between the two pipes is too large, which can increase the difficulty that the non-return baffle 3 prevents the grout from leaking.
Preferably, the diameter that can set up non return baffle 3 is less than the internal diameter 2mm of outer grout pipe 1, also is that the radius of outer grout pipe 1 is greater than the radius 2mm of interior grout pipe 2, and the gap of outer grout pipe 1 and interior grout pipe 2 is less, is convenient for block grout and leaks.
The upper end of the non-return baffle 3 is rotatably connected with the upper inner wall surface of the outer grouting pipe 1, and a rotary connecting piece for connecting the non-return baffle 3 and the upper inner wall surface can be arranged perpendicular to the axis of the outer grouting pipe 1, for example, the end surface of the non-return baffle 3 close to the inner grouting pipe 2 is connected with a steel wire, the other end of the steel wire is connected with the upper inner wall surface of the outer grouting pipe 1, and the steel wire is positioned in a vertical plane passing through the axis of the outer grouting pipe 1; it can also be arranged parallel to the axis of the outer grout pipe 1 as shown in figure 3.
Preferably, referring to fig. 3, the upper end of the non-return baffle 3 is provided with a connecting iron wire 5, and both ends of the connecting iron wire 5 are connected with the upper inner wall surface of the outer grout pipe 1.
Connect iron wire 5 along the string of a thread setting of non return baffle 3, and the both ends of connecting iron wire 5 all are connected with outer grout pipe 1's last internal face, compare in single-point or multiple spot and hang and connect, connect iron wire 5 and non return baffle 3 be connected, connect iron wire 5 and outer grout pipe 1's last internal face be connected all more stable, be favorable to reducing the atress of junction department.
It should be noted that, the connecting iron wire 5 not only bears the weight of the non-return baffle 3, but also twists when the non-return baffle 3 rotates, and in order to ensure the service life of the self-sealing grouting pipe, the connecting iron wire 5 should have good tensile strength and torsional strength.
The type and the material of connecting iron wire 5 are confirmed according to the needs of actual production, and is preferred, and connecting iron wire 5 can set up to the diameter of 0.7mm 22 # iron wire, and the material performance is better and the cost is lower.
In addition, a rigid connecting rod and the like can be adopted to connect the non-return baffle 3 and the outer grouting pipe 1, for example, one end of the rigid connecting rod can be connected with the non-return baffle 3, and the other end of the rigid connecting rod is connected with the outer grouting pipe 1 through a bearing or a cylindrical head.
When grouting begins, a constructor inserts a grouting nozzle into the outer grouting pipe 1, the grouting nozzle pushes the check baffle 3 to rotate upwards so as to enable the grouting nozzle to be communicated with the inner grouting pipe 2, and grouting materials can be injected into the grouting sleeve through the inner grouting pipe 2; after grouting, a constructor extracts a grouting nozzle from the inner part of the outer grouting pipe 1, the non-return baffle 3 rotates downwards under the action of self gravity and the pressure of grouting materials until the non-return baffle 3 is perpendicular to the axis of the outer grouting pipe 1, the inner grouting pipe 2 is sealed by the non-return baffle 3 at the moment, and the grouting materials cannot leak out.
In the embodiment, the inner grouting pipe 2 can be automatically sealed by the non-return baffle 3 after the grouting nozzle is pulled out, compared with the traditional manual blockage, the inner grouting pipe 2 is quickly blocked, the grouting material is effectively prevented from leaking, a slurry cavity in the grouting sleeve is further prevented, and the grouting construction quality is guaranteed; the overall operation time of grouting construction is reduced, and the grouting efficiency is improved; required cooperation manual work when having reduced slip casting construction is favorable to reducing the cost of labor.
Preferably, referring to fig. 1, the non-return baffle 3 is connected to an end of the outer grout pipe 1 away from the inner grout pipe 2, so as to facilitate the connection between the non-return baffle 3 and the outer grout pipe 1.
Preferably, the check baffle 3 comprises a thin steel plate, the thickness of the thin steel plate is greater than or equal to 1mm, and the thin steel plate has certain compressive strength, so that the thin steel plate is prevented from being damaged due to overlarge grouting pressure during grouting.
On the basis of the above embodiment, the upper inner wall surface of the outer grout pipe 1 is provided with a limiting member for limiting the rotation angle of the check baffle 3, so as to prevent the rotation angle of the check baffle 3 from being too large and prevent the time for sealing the inner grout pipe 2 from being too long.
Preferably, referring to fig. 3, the limiting member includes a limiting iron wire 4 having two ends connected to the upper inner wall surface, and the diameter of the limiting iron wire 4 is greater than or equal to 0.7mm, so as to prevent the limiting iron wire 4 from being damaged due to overlarge grouting pressure during grouting.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The self-sealing grouting pipe provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. The self-sealing grouting pipe is characterized by comprising an inner grouting pipe (2) connected with a grouting sleeve and an outer grouting pipe (1) coaxially connected with the inner grouting pipe (2), wherein a non-return baffle (3) with the diameter larger than the inner diameter of the inner grouting pipe (2) is arranged in the outer grouting pipe (1), and the upper end of the non-return baffle (3) is rotatably connected with the upper inner wall surface of the outer grouting pipe (1);
when the grouting nozzle is inserted into the outer grouting pipe (1), the grouting nozzle pushes the non-return baffle (3) to rotate towards the direction close to the upper inner wall surface, and the grouting nozzle is communicated with the inner grouting pipe (2);
when the grouting nozzle is separated from the outer grouting pipe (1), the non-return baffle (3) rotates towards the direction far away from the upper inner wall surface until the non-return baffle (3) is perpendicular to the axis of the outer grouting pipe (1).
2. The self-sealing grouting pipe of claim 1, characterized in that the upper inner wall surface of the outer grouting pipe (1) is provided with a limiting member for limiting the rotation angle of the non-return baffle (3).
3. The self-enclosed grouting pipe of claim 2, wherein the limiting member comprises a limiting iron wire (4) having both ends connected to the upper inner wall surface, and the diameter of the limiting iron wire (4) is greater than or equal to 0.7 mm.
4. Self-sealing grout pipe according to any of claims 1 to 3 characterized in that the diameter of said non-return flapper (3) is the average of the inner diameter of said inner grout pipe (2) and the inner diameter of said outer grout pipe (1).
5. Self-sealing grouting pipe according to claim 4, characterised in that the diameter of the non-return flapper (3) is less than the inner diameter of the outer grouting pipe (1) by 2 mm.
6. The self-sealing grout pipe according to any of claims 1 to 3 wherein said non-return flap (3) comprises a thin steel plate having a thickness greater than or equal to 1 mm.
7. The self-sealing grouting pipe according to any one of claims 1-3, characterised in that the upper end of the non-return baffle (3) is provided with a connecting iron wire (5), and the two ends of the connecting iron wire (5) are connected with the upper inner wall surface of the outer grouting pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122052399.6U CN215907442U (en) | 2021-08-27 | 2021-08-27 | Self-sealing grouting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122052399.6U CN215907442U (en) | 2021-08-27 | 2021-08-27 | Self-sealing grouting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215907442U true CN215907442U (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122052399.6U Active CN215907442U (en) | 2021-08-27 | 2021-08-27 | Self-sealing grouting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215907442U (en) |
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2021
- 2021-08-27 CN CN202122052399.6U patent/CN215907442U/en active Active
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