Spliced cement pipe

Abstract

The utility model relates to the technical field of cement pipes, in particular to a splicing type cement pipe which comprises a cement pipe body, one end of the cement pipe body is provided with a flaring-shaped containing opening, the other end of the cement pipe body is an inserting opening with the outer side wall provided with two installation grooves, rubber rings are arranged in the two installation grooves in a sleeved mode, and the rubber rings are arranged in the two installation grooves in a sleeved mode. A containing opening is formed in the outer wall of the cement pipe body, a grouting opening is further formed in the containing opening, when the inserting openings of the two cement pipe bodies are inserted into the containing opening, a first grouting chamber is defined by the inner wall of the containing opening, the outer wall of the inserting opening and the two rubber rings, and the first grouting chamber communicates with the outside through the grouting opening. The first grouting chamber can be formed in the splicing position of the containing opening and the inserting opening of the cement pipe body after the cement pipe body is spliced, the first grouting chamber or the second grouting chamber is grouted, so that the first grouting chamber is filled with sealing concrete, and the sealing performance between the two cement pipes can be fully guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cement pipes, in particular to a spliced cement pipe. Background Art

[0002] The spliced cement pipe is used for the directional discharge of rainwater and is commonly used in the underground drainage system. Since the splicing method between the cement pipes is a rigid splicing, it is necessary to add rubber rings at the splicing joints of the cement pipes to seal the splicing joints, which also enables a flexible connection between the two cement pipes. In order to further ensure the sealing performance after the cement pipes are spliced, it is also necessary to apply sealing concrete between the cement pipes to further improve the sealing performance after the cement pipes are spliced. The problems existing in the prior art are that since the bottom of the cement pipe contacts the ground after splicing, when applying sealing concrete at the splicing joint of the cement pipe, the bottom is blocked by the ground and it is inconvenient to apply. Secondly, since the gap at the splicing joint of the cement pipe is small, the sealing concrete is not easy to penetrate, which easily leads to poor sealing performance at the splicing joint. Based on the above problems, it is necessary to design a spliced cement pipe to solve the above problems. Content of the Utility Model

[0003] The utility model provides a spliced cement pipe to solve the problems in the prior art that it is inconvenient to apply sealing concrete at the splicing joint of the cement pipe and the gap at the splicing joint of the cement pipe is small, the sealing concrete is not easy to penetrate, which easily leads to poor sealing performance at the splicing joint.

[0004] The technical problems solved by the utility model are realized by adopting the following technical solutions:

[0005] A spliced cement pipe includes a cement pipe body. One end of the cement pipe body is provided with a flared receiving port, and the other end of the cement pipe body is an insertion port with two installation grooves on the outer side wall. Rubber rings are sleeved inside both of the two installation grooves. A grouting port is also opened on the receiving port. When the insertion port of one cement pipe body is inserted into the receiving port of the other cement pipe body, a first grouting chamber is formed by enclosing the inner wall of the receiving port, the outer wall of the insertion port and the two rubber rings. The first grouting chamber is communicated with the outside through the grouting port.

[0006] Preferably, a slurry outlet is also opened on the receiving port, and the height of the grouting port is lower than the height of the slurry outlet.

[0007] Preferably, the first grouting chamber is deepened towards the inner side wall of the receiving port and the outer side wall of the insertion port to form a second grouting chamber.

[0008] Preferably, the position of the slurry outlet corresponds to the highest point of the circular cross-section of the receiving port.

[0009] Preferably, when the insertion port of one cement pipe body is inserted into the receiving port of the other cement pipe body, the two rubber rings are squeezed and deformed to block the gap between the insertion port and the receiving port.

[0010] Preferably, the inner wall diameter of the receiving port is larger than the outer wall diameter of the insertion port.

[0011] The beneficial effects of the present utility model are as follows: By providing two rubber rings, a first grouting chamber can be formed at the joint of the receiving port and the insertion port of the cement pipe body after the cement pipe bodies are spliced. By grouting into the first grouting chamber or the second grouting chamber, the sealing concrete can fill the first grouting chamber, which can fully ensure the sealing performance between the two cement pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 Structural schematic diagram of the prior art of the present utility model:

[0014] Figure 2 Cross-sectional schematic diagram of the prior art of the present utility model:

[0015] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram at A in:

[0016] Figure 4 Three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 5 Structural schematic diagram after splicing two cement pipe bodies of the present utility model;

[0018] Figure 6 For the present utility model Figure 5 Cross-sectional schematic diagram of;

[0019] Figure 7 For the present utility model Figure 6 Enlarged structural schematic diagram at B in;

[0020] Figure 8 Structural diagram of the second grouting chamber formed after splicing two cement pipe bodies of the present utility model;

[0021] Figure 9 For the present utility model Figure 8 Enlarged structural schematic diagram at C in.

[0022] In the figure, 1 is a cement pipe body; 2 is a receiving end; 3 is a stepped groove; 4 is a rubber ring; 5 is sealing concrete; 6 is an installation groove; 7 is a grouting port; 8 is a slurry outlet; 9 is a first grouting chamber; 10 is a second grouting chamber; 11 is an inserting end. Specific implementation mode

[0023] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0024] Refer to Figures 1 - 3 , which is the attached drawing of the prior art of the present utility model. The existing cement pipe body 1 is a cylindrical pipe body with a flared receiving port 2 at one end and an inserting port 11 with a stepped groove 3 at the other end. When splicing two cement pipe bodies 1, first, a rubber ring 4 is sleeved on the stepped groove 3 at the inserting end of one cement pipe body 1, and then the inserting end is aligned with the flared receiving port 2 of the other cement pipe body 1 and inserted. During the insertion process, the rubber ring 4 is blocked by the stepped groove 3 and will not slide, enabling the rubber ring 4 to perform the first layer of sealing between the outer wall of the inserting port 11 and the inner wall of the receiving port 2. Secondly, the sealing concrete 5 is smeared at the end of the flared receiving port 2 to perform the second layer of sealing at the end of the receiving port 2. The above is the splicing structure of the existing cement pipe body 1. As can be seen from the above, when the existing cement pipe body 1 uses the sealing concrete 5 to seal the end of the flared receiving port 2, since the bottom of the cement pipe body 1 is supported on the ground, the position near the ground at the bottom is not convenient for smearing due to the narrow space, which easily leads to poor smearing quality and affects the later sealing effect. At the same time, when the sealing concrete 5 seals the end of the receiving port 2, it is very difficult for the sealing concrete 5 to flow into the gap between the receiving port 2 and the inserting end, and it is easy to fall off later, affecting the sealing effect. Based on the above problems, the present utility model makes the following improvements to the cement pipe body 1 to improve the sealing performance of the existing cement pipe body 1.

[0025] As Figures 4 - 7As shown in the figure, the main difference between the cement pipe body 1 of the present utility model and the existing cement pipe body 1 is as follows. Firstly, two installation grooves 6 are provided at the insertion end of the cement pipe body 1 of the present utility model for installing the rubber ring 4, and there is a spacing between the two installation grooves 6. Secondly, a grouting port 7 is provided on the receiving port 2 of the present utility model. When two cement pipe bodies 1 are spliced together, the insertion end of one cement pipe body 1 is inserted into the receiving port 2 of the other cement pipe body 1. The two rubber rings 4, the inner wall of the receiving port 2 and the outer wall of the insertion port 11 enclose to form the first grouting chamber 9, and the first grouting chamber 9 is communicated with the outside through the grouting port 7 on the receiving port 2. Sealant concrete 5 is grouted into the interior of the grouting chamber through the grouting port 7, so that the interior of the first grouting chamber 9 is filled with sealant concrete 5, achieving the sealing of the splicing part of the two cement pipe bodies 1. The advantages of the present utility model adopting the above scheme compared with the prior art are that the use of two rubber rings 4 can achieve double-layer sealing at the splicing part, and the flexible connection effect between the two cement pipe bodies 1 is better. At the same time, the two rubber rings 4 cooperate with the receiving port 2 and the insertion port 11 to form the first grouting chamber 9, and the sealant concrete 5 is sealed by grouting. Compared with the existing external coating, it can better ensure the uniformity of the sealant concrete 5, and there is no problem of small space and inability to guarantee the coating quality. Moreover, the grouting method can ensure that the sealant concrete 5 is all in the gap between the receiving port 2 and the insertion port 11, is not easy to fall off, and further ensures the sealing effect.

[0026] Furthermore, a slurry outlet 8 is also provided on the receiving port 2. During grouting, the sealant concrete 5 slurry enters from the grouting port 7 and exhausts from the slurry outlet 8 to ensure the smoothness of grouting. In order to ensure that the slurry does not flow out from the slurry outlet 8 during grouting, the height of the slurry outlet 8 should be higher than the height of the grouting port 7.

[0027] Furthermore, in order to ensure that the interior of the first grouting chamber 9 is filled with slurry, the slurry outlet 8 should be arranged at the highest point of the cross-section of the receiving port 2, which also corresponds to the highest point of the first grouting chamber 9. When slurry is injected from the grouting port 7, due to the action of gravity, the liquid level of the slurry will gradually rise inside the first grouting chamber 9 until the sealant concrete 5 slurry flows out from the slurry outlet 8, indicating that the first grouting chamber 9 is filled with slurry, thus fully ensuring the sealing performance after the splicing of the cement pipe body 1.

[0028] Furthermore, as Figure 8 and Figure 9 shown, the first grouting chamber 9 is deepened towards the inner side wall of the receiving port 2 and the outer side wall of the insertion port 11 to form the second grouting chamber 10. After grouting into the second grouting chamber 10 through the grouting port 7, when the sealant concrete 5 solidifies inside the second grouting chamber 10, it can make the tensile strength of the two spliced cement pipe bodies 1 higher in the opposite direction of the axis, that is, the sealant concrete 5 solidified inside the second grouting chamber 10 can achieve the firm connection of the two cement pipe bodies 1.

[0029] Furthermore, when the insertion openings 11 of the two cement pipe bodies 1 are inserted into the receiving openings 2, the two rubber rings 4 are squeezed and deformed to seal the gap between the insertion openings 11 and the receiving openings 2, which can fully achieve the sealing of the first grouting chamber 9 and the second grouting chamber 10 and avoid the leakage of the sealing concrete 5 slurry during later grouting.

[0030] Furthermore, the inner wall diameter of the receiving opening 2 is larger than the outer wall diameter of the insertion opening 11, which enables the two cement pipe bodies 1 to be spliced with each other. The insertion opening 11 is more convenient to enter the interior of the receiving opening 2, and there is a gap between the insertion opening 11 and the receiving opening 2, ensuring that the first grouting chamber 9 or the second grouting chamber 10 can be formed.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A spliced ​​cement pipe, comprising a cement pipe body (1), one end of the cement pipe body (1) being provided with a flared receiving opening (2), characterized in that: The other end of the cement pipe body (1) is an insertion opening (11) with two installation grooves (6) provided on the outer wall. The two installation grooves (6) are both sleeved with rubber rings (4). The receiving opening (2) is also provided with a grouting opening (7). When the insertion openings (11) of the two cement pipe bodies (1) are inserted into the receiving opening (2), the inner wall of the receiving opening (2), the outer wall of the insertion opening (11) and the two rubber rings (4) are combined to form a first grouting chamber (9). The first grouting chamber (9) is connected to the outside through the grouting opening (7).

2. A spliced ​​cement pipe according to claim 1, characterized in that: The receiving port (2) is also provided with a slurry outlet (8), and the height of the grouting port (7) is lower than the height of the slurry outlet (8).

3. A spliced ​​cement pipe according to claim 1, characterized in that: The first grouting chamber (9) is deepened toward the inner side wall of the accommodating opening (2) and the outer side wall of the insertion opening (11) to form a second grouting chamber (10).

4. A spliced ​​cement pipe according to claim 2, characterized in that: The position of the slurry outlet (8) corresponds to the highest point of the circular cross-section of the receiving opening (2).

5. The spliced ​​cement pipe according to claim 1, characterized in that: When the insertion openings (11) and the receiving openings (2) of the two cement pipe bodies (1) are inserted into each other, the two rubber rings (4) are squeezed and deformed to seal the gap between the insertion openings (11) and the receiving openings (2).

6. The spliced ​​cement pipe according to claim 1, characterized in that: The inner wall diameter of the accommodating opening (2) is greater than the outer wall diameter of the insertion opening (11).

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