Anti-seepage water-stopping casing and construction method thereof

Abstract

The present invention provides an anti-seepage and water-stopping sleeve, belonging to the technical field of construction engineering. The anti-seepage and water-stopping sleeve comprises a sleeve body arranged in a wall, first thread grooves are provided on both sides of the circumferential inner wall of the sleeve body, a sealing plug and a first irrigation tube are respectively threadedly connected on both sides of the sleeve body, the sealing plug is used for sealing the sleeve body, and the first irrigation tube is used for irrigation of non-shrinkage mortar; a connecting groove is provided in the first irrigation tube, a second connecting groove is provided on the side wall of the connecting groove, a second thread groove is provided on the circumferential inner wall of the connecting groove, a second irrigation tube is threadedly connected on the circumferential inner wall of the connecting groove, an irrigation block is fixedly connected to the side end of the second irrigation tube, the irrigation block and the first connecting groove are provided in the second irrigation tube, which can not only meet the requirements of water stopping and anti-seepage, but also save construction costs; recycled plastics are reused, resources are saved, and environmental protection is beneficial.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to an anti-seepage water-stopping casing. Background Art

[0002] Waterproof casing is also called wall casing, wall pipe, and flexible waterproof casing is generally suitable for structures where pipes pass through walls and are subject to vibration or have strict waterproofing requirements. Waterproof casing is divided into rigid waterproof casing and flexible waterproof casing. The two are mainly used in different places. Flexible waterproof casing is mainly used in places with high requirements such as civil defense walls and pools. Rigid waterproof casing is generally used in basements and other locations where pipes need to pass through pipes.

[0003] Waterstop sleeves are widely used in underground exterior wall construction and are tightly combined with concrete to achieve the purpose of anti-seepage and water-stopping. However, waterstop screws cannot be recycled or reused. In view of this situation, an anti-seepage waterstop sleeve is invented. When the existing waterstop sleeve is filled with non-shrinkage mortar, a large amount of outflow will occur when filling the non-shrinkage mortar due to the horizontal placement of the sleeve, making it difficult to fill the sleeve. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-seepage water-stopping sleeve, aiming to solve the problem that the water-stopping sleeves in the prior art are widely used in underground exterior wall construction and are tightly combined with concrete to achieve the purpose of anti-seepage and water-stopping. However, the water-stopping screws cannot be recycled or reused. In view of this situation, an anti-seepage water-stopping sleeve is invented. When the existing water-stopping sleeve is filled with non-shrinkage mortar, due to the horizontal placement of the sleeve, a large amount of outward seepage will occur when filling the non-shrinkage mortar, making it difficult to fill the sleeve.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A seepage-proof water-stopping sleeve comprises a sleeve body arranged in a wall, first thread grooves are provided on both sides of the circumferential inner wall of the sleeve body, a sealing plug and a first irrigation tube are respectively threadedly connected on both sides of the sleeve body, the sealing plug is used to seal the sleeve body, and the first irrigation tube is used to inject non-shrinkage mortar; a connecting groove is provided in the first irrigation tube, a second communicating groove is provided on the side wall of the connecting groove, a second thread groove is provided on the circumferential inner wall of the connecting groove, a second irrigation tube is threadedly connected on the circumferential inner wall of the connecting groove, an irrigation block is fixedly connected to the side end of the second irrigation tube, a first communicating groove is provided in the irrigation block and the second irrigation tube, the first communicating groove and the second communicating groove are connected, a sealing ring is provided in the second communicating groove, the sealing ring is used to maintain the sealing of the second irrigation tube when the second irrigation tube is not threadedly connected to the connecting groove, a first elastic component is provided in the second communicating groove, and the first elastic component is used to drive the sealing ring for sealing.

[0007] As a preferred solution of the present invention, a second gap plate is fixedly connected in the second connecting groove, a connecting rod is slidably connected in the second gap plate, one end of the connecting rod is fixedly connected to a sealing plate, the other end of the connecting rod is fixedly connected to an I-shaped ring, and the sealing ring is fixedly connected to the circumferential surface of the I-shaped ring.

[0008] As a preferred solution of the present invention, the first elastic component includes a sliding cylinder fixedly connected to the side end of the second gap plate, the connecting rod is slidably connected in the sliding cylinder, a circular plate is slidably connected in the sliding cylinder, the circular plate is slidably connected to the circumferential surface of the connecting rod, the side end of the circular plate is fixedly connected to a second spring, the second spring is fixedly connected to the side end of the second gap plate, and the second spring is sleeved on the circumferential surface of the connecting rod.

[0009] As a preferred solution of the present invention, the side end of the I-shaped ring is fixedly connected to the second extrusion head, the circumferential inner wall of the first connecting groove is fixedly connected to the first gap plate, the side end of the first gap plate is fixedly connected to the connecting column, and the side end of the connecting column is fixedly connected to the first extrusion head.

[0010] As a preferred solution of the present invention, a sealing groove is provided on the side wall of the connecting groove and on one end of the infusion block close to the connecting groove, and sealing gaskets are fixedly connected in the two sealing grooves.

[0011] As a preferred solution of the present invention, the side end of the first infusion tube is fixedly connected with a second threaded head.

[0012] As a preferred solution of the present invention, a first threaded head is fixedly connected to the side end of the sealing plug.

[0013] As a preferred solution of the present invention, a trapezoidal groove is provided at a side end of the sealing plug, and a plastic weld is welded between the trapezoidal groove and the inner wall of the sleeve body.

[0014] As a preferred solution of the present invention, filling grooves are provided at both ends of the sleeve body.

[0015] An anti-seepage water-stopping casing and a construction method thereof, comprising the following steps:

[0016] S1: Preparation of raw materials: This device can be prepared using recycled plastics according to the specifications and sizes of the casing body and the sealing plug to make the casing body and the matching sealing plug. The inner diameter of the casing body is 2mm larger than the diameter of the tension screw, and the length of the casing body is 5mm thinner than the outer wall;

[0017] S2: Casing installation: When installing the formwork, rubber washers are installed at both ends of the casing body. Pass the tension screw through the casing body and the rubber washers, and tighten the nuts on the tension screw to make sure there is no gap between the casing and the formwork to prevent leakage.

[0018] S3: Concrete pouring: pouring concrete in layers;

[0019] S4: Dismantle the mold: loosen the nut, take out the tension screw, remove the template, and take out the rubber gasket;

[0020] S5: Casing plugging: Install a sealing plug at one end of the casing body, then fill the casing body with non-shrinkage mortar, use a wrench to turn the second threaded head to drive the first infusion tube to be threadedly connected to the inner wall of the casing body, then align the second infusion tube with the connecting groove and insert it, rotate the second infusion tube to make the second infusion tube and the connecting groove threadedly connected, the two second extrusion heads contact each other, and squeeze the second spring and the first extrusion head to both sides respectively, so that the two I-shaped rings drive the two sealing rings to release the seal of the first connecting groove and the second connecting groove, the connecting rod moves with the I-shaped ring, and the connecting rod drives the sealing plate to release the seal between the casing body and the second connecting groove, at this time, the non-shrinkage mortar can be poured into the casing body through the first connecting groove, and after the non-shrinkage mortar in the casing body is initially solidified, the plug is installed on the other end of the casing.

[0021] S6: Welding: Use special welding equipment to seal the casing and the plug, and apply waterproof mortar: Apply waterproof mortar to the sealing part of the plug for sealing and protection, and finally apply waterproof mortar to the filling slot for sealing and protection.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In this device: two threaded grooves on the inner wall of the casing body are used to install the sealing plug, and the threaded grooves on the casing body match the threaded grooves on the surface of the first irrigation tube used to inject the non-shrinkage mortar, which is not only convenient for sealing the casing body, but also convenient for installing the first irrigation tube. The first irrigation tube can be disassembled through threaded connection and can be reused, which improves the use efficiency and can effectively protect the environment.

[0024] 2. In this device: The sleeve body and sealing plug in this device are made of recycled waste plastics and then processed. According to the specifications of the sleeve body and the plug, a plastic water-stop sleeve body and a matching plastic plug are made, which can not only meet the requirements of water-stopping and anti-seepage, but also save construction costs; the recycled plastics are reused, which saves resources and is beneficial to environmental protection.

[0025] 3. In this device: the outside of the casing body is provided with a plastic water-stopping ring, and the casing body is tightly combined with the concrete, so that the outside of the casing body plays a water-stopping role; the inside of the casing body is grouting, plugging and sealing welding, so that the inside of the casing body plays a water-stopping role.

[0026] 4. In the device: When the device is threadedly connected to the connecting groove through the second infusion tube, the two extrusion heads are in contact, the first extrusion head squeezes the second extrusion head to drive the connecting rod and the circular plate to squeeze the first spring, so that the sealing ring releases the seal of the second connecting groove, which can ensure that there will be no large amount of outward penetration when filling the non-shrinkage mortar, which is convenient for filling the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 A first partial cross-sectional view of an anti-seepage water-stopping casing proposed by the present invention;

[0029] Figure 2 A first stereoscopic diagram of an anti-seepage water-stopping casing proposed by the present invention;

[0030] Figure 3 A second partial cross-sectional view of an anti-seepage water-stopping casing proposed by the present invention;

[0031] Figure 4 A third partial cross-sectional view of an anti-seepage water-stopping casing proposed by the present invention;

[0032] Figure 5 A fourth partial cross-sectional view of an anti-seepage water-stopping casing proposed by the present invention;

[0033] Figure 6A first partial stereoscopic view of an anti-seepage water-stopping casing proposed by the present invention;

[0034] Figure 7 A second stereoscopic view of an anti-seepage water-stopping casing proposed by the present invention;

[0035] Figure 8 A fifth partial cross-sectional view of an anti-seepage water-stopping casing provided by the present invention;

[0036] Fig. 9 A cross-sectional view of an anti-seepage and water-stopping casing proposed by the present invention after casing plugging is completed;

[0037] Fig.10 The present invention provides an anti-seepage water-stopping casing Fig. 9 A partial enlarged view of point A in the middle.

[0038] In the figure: 1. sleeve body; 2. sealing plug; 201. first threaded head; 202. plastic weld; 203. trapezoidal groove; 3. first infusion tube; 301. second threaded head; 4. infusion block; 401. first connecting groove; 402. second infusion tube; 403. first gap plate; 404. first extrusion head; 405. connecting column; 406. connecting groove; 5. sealing plate; 501. second connecting groove; 502. connecting rod; 503. second gap plate; 504. second spring; 6. second extrusion head; 601. sealing ring; 602. I-shaped ring; 7. slide cylinder; 701. round plate; 8. sealing groove; 801. sealing pad; 9. filling groove; 10. tension screw. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1-10 The present invention provides the following technical solutions:

[0042] An anti-seepage water-stopping sleeve comprises a sleeve body 1 arranged in a wall, both sides of the inner wall of the sleeve body 1 are provided with a first thread groove, and both sides of the sleeve body 1 are threadedly connected with sealing plugs 2 and the first infusion tube 3, the sealing plug 2 is used to seal the sleeve body 1, and the first infusion tube 3 is used to infuse non-shrinkage mortar; a connecting groove 406 is provided in the first infusion tube 3, a second communicating groove 501 is provided on the side wall of the connecting groove 406, a second threaded groove is provided on the circumferential inner wall of the connecting groove 406, and the second infusion tube 402 is threadedly connected to the circumferential inner wall of the connecting groove 406, and the side end of the second infusion tube 402 is fixedly connected with the infusion block 4, the infusion block 4 and the second infusion tube 402 are provided with a first communicating groove 401, the first communicating groove 401 and the second communicating groove 501 are connected, a sealing ring 601 is provided in the second communicating groove 501, the sealing ring 601 is used to maintain the sealing of the second communicating groove 501 when the second infusion tube 402 is not threadedly connected to the connecting groove 406, and a first elastic component is provided in the second communicating groove 501, and the first elastic component is used to drive the sealing ring 601 for sealing.

[0043] In a specific embodiment of the present invention, before pouring the non-shrinkage mortar, the device Figure 8 and Fig. 9 As shown, the tension screw 10 needs to bear the lateral pressure of the concrete and other loads to ensure that the spacing between the inner and outer templates can meet the design requirements. The first pouring pipe 3 cooperates with the pouring block 4 and the second pouring pipe 402 to pour non-shrinkage mortar into the casing body 1. After the pouring, the casing body 1 is as shown in FIG. Fig.10 shown.

[0044] For details, please refer to Figure 1 A second gap plate 503 is fixedly connected in the second connecting groove 501, a connecting rod 502 is slidably connected in the second gap plate 503, one end of the connecting rod 502 is fixedly connected to a sealing plate 5, the other end of the connecting rod 502 is fixedly connected to an I-shaped ring 602, and the sealing ring 601 is fixedly connected to the circumferential surface of the I-shaped ring 602.

[0045] In this embodiment, the second connecting groove 501 is sealed by the sealing plate 5 and the sealing ring 601 .

[0046] For details, please refer to Figure 1 The first elastic component includes a slide cylinder 7 fixedly connected to the side end of the second gap plate 503, the connecting rod 502 is slidably connected in the slide cylinder 7, a circular plate 701 is slidably connected in the slide cylinder 7, the circular plate 701 is slidably connected to the circumferential surface of the connecting rod 502, the side end of the circular plate 701 is fixedly connected to the second spring 504, the second spring 504 is fixedly connected to the side end of the second gap plate 503, and the second spring 504 is sleeved on the circumferential surface of the connecting rod 502.

[0047] In this embodiment: one side of the second connecting groove 501 can be sealed by the sealing ring 601, and the other side of the second connecting groove 501 can be sealed by the sealing plate 5. After being squeezed, the second spring 504 drives the sealing ring 601 and the sealing plate 5 to release the seals on both sides of the second connecting groove 501. The slide tube 7 can protect the second spring 504 to prevent mud from entering the slide tube 7 and affecting the use of the second spring 504.

[0048] For details, please refer to Figure 4 and Figure 5 The side end of the I-shaped ring 602 is fixedly connected to the second extrusion head 6, the circumferential inner wall of the first connecting groove 401 is fixedly connected to the first gap plate 403, the side end of the first gap plate 403 is fixedly connected to the connecting column 405, and the side end of the connecting column 405 is fixedly connected to the first extrusion head 404.

[0049] In this embodiment, when the second infusion tube 402 is not threadedly connected to the connection groove 406, the two second extrusion heads 6 are respectively driven by the elasticity of the second spring 504 and the first extrusion head 404 to protrude out of the first communication groove 401 and the second communication groove 501. Through the mutual extrusion of the two, the two sealing rings 601 release the sealing of the first communication groove 401 and the second communication groove 501.

[0050] For details, please refer to Figure 4 A sealing groove 8 is formed on the side wall of the connecting groove 406 and on one end of the infusion block 4 close to the connecting groove 406 , and a sealing gasket 801 is fixedly connected in both sealing grooves 8 .

[0051] In this embodiment, in order to prevent a gap from being formed between the second infusion tube 402 and the connecting groove 406 , a sealing gasket 801 is provided in two sealing grooves 8 to reinforce the seal between the second infusion tube 402 and the connecting groove 406 .

[0052] For details, please refer to Figure 3 , Figure 4 and Figure 5 The side end of the first infusion tube 3 is fixedly connected with a second threaded head 301 .

[0053] In this embodiment, the first infusion tube 3 can be screwed into the inner wall of the casing body 1 by means of the second thread head 301 .

[0054] For details, please refer to Fig.10 The side end of the sealing plug 2 is fixedly connected with a first thread head 201.

[0055] In this embodiment, it is convenient to use a wrench to twist the sealing plug 2, thereby ensuring the tightness of the seal.

[0056] For details, please refer to Fig.10A trapezoidal groove 203 is formed at the side end of the sealing plug 2 , and a plastic weld 202 is welded between the trapezoidal groove 203 and the inner wall of the sleeve body 1 .

[0057] In this embodiment, the trapezoidal groove 203 is a trapezoidal increasing groove, and a special welding device is used to seal the sleeve body 1 and the sealing plug 2 to form a plastic weld 202.

[0058] For details, please refer to Figure 3 and Figure 8 Filling grooves 9 are provided at both ends of the sleeve body 1.

[0059] In this embodiment, the filling groove 9 is used to fill the waterproof mortar to stop the inside of the casing.

[0060] An anti-seepage water-stopping casing and a construction method thereof, comprising the following steps:

[0061] S1: Preparation of raw materials: The device can be prepared using recycled plastics according to the specifications of the casing body 1 and the sealing plug 2 to make the casing body 1 and the matching sealing plug 2. The inner diameter of the casing body 1 is 2 mm larger than the diameter of the tension screw 10, and the length of the casing body 1 is 5 mm thinner than the outer wall;

[0062] S2: Casing installation: When installing the formwork, rubber washers are provided at both ends of the casing body 1. The tension screw 10 is passed through the casing body 1 and the rubber washers, and the nuts on the tension screw 10 are tightened to make sure there is no gap between the casing and the formwork to prevent leakage.

[0063] S3: Concrete pouring: pouring concrete in layers;

[0064] S4: Demolding: loosen the nut, take out the tension screw 10, remove the template, and take out the rubber gasket;

[0065] S5: Casing plugging: Install the sealing plug 2 at one end of the casing body 1, then fill the casing body 1 with non-shrinkage mortar, rotate the second threaded head 301 with a wrench to drive the first irrigation tube 3 to be threadedly connected to the inner wall of the casing body 1, then align the second irrigation tube 402 with the connecting groove 406 and insert it, rotate the second irrigation tube 402 so that the second irrigation tube 402 and the connecting groove 406 are threadedly connected, the first extrusion head 404 and the second extrusion head 6 are in contact, the extrusion circular plate 7 drives the second spring 504, so that the I-shaped ring 602 drives the sealing ring 601 to release the seal of the second connecting groove 501, the connecting rod 502 moves with the I-shaped ring 602, and the connecting rod 502 drives the sealing plate 5 to release the seal between the casing body 1 and the second connecting groove 501, at this time, the non-shrinkage mortar can be poured into the casing body 1 through the first connecting groove 401, and after the non-shrinkage mortar in the casing body 1 is initially solidified, the plug is installed at the other end of the casing.

[0066] S6: Welding: Use special welding equipment to seal the sleeve and the plug, and apply waterproof mortar: Apply waterproof mortar to the sealing part of the plug for sealing and protection, and finally apply waterproof mortar to the filling groove 9 for sealing and protection.

[0067] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-seepage and water-stopping casing, comprising a casing body (1) arranged in a wall, Features: A first thread groove is provided on both sides of the circumferential inner wall of the casing body (1), and a sealing plug (2) and a first irrigation tube (3) are respectively threadedly connected on both sides of the casing body (1), wherein the sealing plug (2) is used to seal the casing body (1), and the first irrigation tube (3) is used to inject non-shrinkage mortar; A connecting groove (406) is provided in the first infusion tube (3), a second connecting groove (501) is provided on the side wall of the connecting groove (406), a second threaded groove is provided on the circumferential inner wall of the connecting groove (406), a second infusion tube (402) is threadedly connected to the circumferential inner wall of the connecting groove (406), an infusion block (4) is fixedly connected to the side end of the second infusion tube (402), a first connecting groove (401) is provided in the infusion block (4) and the second infusion tube (402), the first connecting groove (401) and the second connecting groove (501) are connected, a sealing ring (601) is provided in the second connecting groove (501), the sealing ring (601) is used to keep the second connecting groove (501) sealed when the second infusion tube (402) is not threadedly connected to the connecting groove (406), a first elastic component is provided in the second connecting groove (501), the first elastic component is used to drive the sealing ring (601) to seal; The second connecting groove (501) is fixedly connected to a second gap plate (503), the second gap plate (503) is slidably connected to a connecting rod (502), one end of the connecting rod (502) is fixedly connected to a sealing plate (5), the other end of the connecting rod (502) is fixedly connected to an I-shaped ring (602), and the sealing ring (601) is fixedly connected to the circumferential surface of the I-shaped ring (602); the first elastic component includes a side member fixedly connected to the second gap plate (503); The sliding cylinder (7) is provided at one end of the connecting rod (502), the connecting rod (502) is slidably connected in the sliding cylinder (7), a circular plate (701) is slidably connected in the sliding cylinder (7), the circular plate (701) is fixedly sleeved on the circumferential surface of the connecting rod (502), a second spring (504) is fixedly connected to the side end of the circular plate (701), the second spring (504) is fixedly connected to the side end of the second gap plate (503), and the second spring (504) is sleeved on the circumferential surface of the connecting rod (502).

2. The anti-seepage waterproof casing according to claim 1, Features: The side end of the I-shaped ring (602) is fixedly connected to the second extrusion head (6), the circumferential inner wall of the first connecting groove (401) is fixedly connected to the first gap plate (403), the side end of the first gap plate (403) is fixedly connected to the connecting column (405), and the side end of the connecting column (405) is fixedly connected to the first extrusion head (404).

3. The anti-seepage waterproof casing according to claim 2, Features: The side wall of the connecting groove (406) and one end of the infusion block (4) close to the connecting groove (406) are both provided with sealing grooves (8), and sealing pads (801) are fixedly connected in the two sealing grooves (8).

4. The anti-seepage waterproof casing according to claim 3, Features: A second threaded head (301) is fixedly connected to the side end of the first infusion tube (3).

5. The anti-seepage waterproof casing according to claim 4, Features: A first threaded head (201) is fixedly connected to the side end of the sealing plug (2).

6. The anti-seepage waterproof casing according to claim 5, Features: A trapezoidal groove (203) is formed at the side end of the sealing plug (2), and a plastic weld (202) is welded between the trapezoidal groove (203) and the inner wall of the sleeve body (1).

7. The method for using the anti-seepage water-stopping casing according to claim 6, It is characterized in that The steps include: S1: preparing raw materials: using recycled plastics to prepare the sleeve body (1) and the sealing plug (2) according to the specifications and dimensions, the sleeve body (1) and the matching sealing plug (2) are manufactured, the inner diameter of the sleeve body (1) is 2 mm larger than the diameter of the tension screw (10), and the length of the sleeve body (1) is 5 mm thinner than the outer wall; S2: Casing installation: When the formwork is installed, rubber washers are provided at both ends of the casing body (1), the tension screw (10) is passed through the casing body (1) and the rubber washers, and the nuts on the tension screw (10) are tightened to ensure that there is no gap between the casing body (1) and the formwork to prevent slurry leakage; S3: Concrete pouring: pouring concrete in layers; S4: Demolding: loosen the nut, take out the tension screw (10), remove the mold, and take out the rubber gasket; S5: Casing plugging: A sealing plug (2) is installed at one end of the casing body (1), and then non-shrinkage mortar is filled into the casing body (1). The second threaded head (301) is rotated by a wrench to drive the first infusion tube (3) to be threadedly connected to the inner wall of the casing body (1). Then, the second infusion tube (402) is aligned with the connection groove (406) and inserted. The second infusion tube (402) is rotated so that the second infusion tube (402) and the connection groove (406) are threadedly connected. The first extrusion head (404) contacts the second extrusion head (6), and the extrusion tube (404) is extruded. The second spring (504) is compressed, so that the I-shaped ring (602) drives the sealing ring (601) to release the seal on the second connecting groove (501), and the connecting rod (502) moves along with the I-shaped ring (602). The connecting rod (502) drives the sealing plate (5) to release the seal between the second connecting groove (501). At this time, the non-shrinkage mortar can be poured into the casing body (1) through the first connecting groove (401). After the non-shrinkage mortar in the casing body (1) is initially solidified, a plug is installed on the other end of the casing body (1); S6: Welding: Use special welding equipment to seal the casing body (1) and the plug, and apply waterproof mortar: Apply waterproof mortar to the sealing welding of the plug to seal and protect it. Finally, apply waterproof mortar to the filling grooves (9) opened at both ends of the casing body (1) to seal and protect it.

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