Anti-seepage device for water supply and drainage pipe in constructional engineering

Abstract

An anti-seepage device for a water supply and drainage pipe in constructional engineering is arranged between two water pipes and comprises an inner wall supporting piece arranged in the close ends of the two water pipes, the outer circle face of the inner wall supporting piece is matched with the inner walls of the water pipes, a sealing supporting ring coaxial with the inner wall supporting piece is arranged on the outer side of the inner wall supporting piece, and the sealing supporting ring and the inner wall supporting piece are integrally formed. The sealing supporting ring is located between the two water pipes, and the sealing supporting ring and the two water pipes are connected in a sealed mode through sealing assemblies. The two locking sleeves are respectively sleeved on one side of the end part of the corresponding water pipe, and the sealing gasket and the inner wall supporting piece are simultaneously arranged on the corresponding water pipe, so that the radial gasket is positioned between the end surface of the water pipe on one side and one end surface of the sealing supporting ring, and the inner sleeve is locked by the locking sleeves; the sealing washer is pressed on the outer walls of the water pipe and the sealing supporting ring through the inner sleeve, the gap between the water pipe and the sealing supporting ring and the gap between the water pipe and the sealing supporting ring are sealed, and the leakage phenomenon is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage pipes, in particular to a water-proof and anti-seepage device for water supply and drainage pipes in construction projects. Background Technique

[0002] Water supply and drainage pipes are pipe fittings used for transporting and discharging water. During building construction, water supply and drainage pipes need to be sealed and connected to prevent leakage between two adjacent pipes.

[0003] In the prior art, there is a structure for connecting two adjacent water pipes through a water-proof and anti-seepage device for water supply and drainage. This water-proof and anti-seepage device for water supply and drainage includes a plurality of extrusion ring blocks and a structure for supporting the extrusion ring blocks. By driving the two extrusion ring blocks to move towards each other, the waterproof rubber pad arranged outside the water pipe plays a role of extrusion and sealing. However, this anti-seepage device extrudes the waterproof rubber pad to the outer peripheral surface of the water pipe through the extrusion ring blocks. For water pipes made of plastic materials, when subjected to extrusion forces from different directions of multiple extrusion ring blocks, the phenomenon of uneven stress on the pipe wall will occur, and there is no support structure inside the water pipe. Improper operation will cause cracks or even bursting of the water pipe. Content of the Utility Model

[0004] To solve the technical problems existing in the above background technique, the utility model provides a water-proof and anti-seepage device for water supply and drainage pipes in construction projects.

[0005] The technical solution of the utility model is as follows:

[0006] A water-proof and anti-seepage device for water supply and drainage pipes in construction projects is arranged between two water pipes and includes an inner wall support member arranged inside the adjacent ends of the two water pipes. The outer cylindrical surface of the inner wall support member is adapted to the inner wall of the water pipe. A sealing support ring coaxial with the inner wall support member is arranged outside the inner wall support member. The sealing support ring is integrally formed with the inner wall support member and is located between the two water pipes. The joints of the sealing support ring with the two water pipes are both sealed and connected through a sealing component; a single sealing component includes a sealing gasket. The sealing gasket is of an annular structure. The sealing gasket is sleeved on the outer side surface of the water pipe and one end of the sealing support ring adjacent thereto and is locked through a locking member, playing a role of isolating and sealing the gap between the water pipe and the sealing support ring.

[0007] The inner wall support member is inserted into the two water pipes, which can not only support the inner walls of the two water pipes to prevent the water pipes from breaking due to increased external force during subsequent sealing connection of the two water pipes, but also play a role of pre-connecting the two water pipes to be connected, facilitating the next installation of the sealing component between the water pipe and the sealing support ring. The sealing component can be hermetically arranged around the outer walls of the water pipe and the sealing support ring, achieving the effect of sealed connection.

[0008] The specific structure of the above-mentioned locking member is that the locking member includes a locking sleeve and an inner sleeve. The inner sleeve is made of elastic-plastic material, is arranged on one side of the sealing support ring coaxially with it, and is sleeved outside the sealing washer. The locking sleeve is sleeved outside the inner sleeve and is locked and connected with it. The locking sleeve can squeeze the inner sleeve towards the sealing washer by rotation until the inner wall of the sealing washer is closely attached to the outer wall of the water pipe sealing support ring, realizing the sealed connection between the sealing washer, the water pipe and the sealing support ring.

[0009] Regarding the specific structure in which the locking sleeve and the inner sleeve can press the sealing washer tightly, the outer cylindrical surface of the inner sleeve and the inner cylindrical surface of the locking sleeve are tapered locking surfaces that match each other. The inner sleeve is threadedly connected to the locking sleeve. Since the inner sleeve is made of elastic-plastic material, the effect of locking the two can be achieved.

[0010] The above is to facilitate locking the inner sleeve on the outer wall of the sealing washer when tightening the locking sleeve. At least two long opening grooves are provided on the inner sleeve along the axial direction. When the locking sleeve is tightened, the inner sleeve will deform when the locking sleeve is tightened and be pressed inward by the locking sleeve, thereby pressing the sealing washer tightly.

[0011] To cooperate with the sealing washer to achieve a sealing effect on the two water pipes and the sealing support ring between them, a radial washer is provided between the end faces of the water pipe and its adjacent sealing support ring. The radial washer is connected to the inner wall of the sealing washer. The radial washer is used to prevent water seepage from occurring in the gap between the outer wall of the water pipe and the outer cylindrical surface of the inner wall support member.

[0012] To avoid obvious deformation of the sealing washer when it is sleeved on the water pipe and the sealing support ring, which affects its sealing effect, the outer diameters of the water pipe and the sealing support ring are set to be the same, and the adjacent surfaces of the water pipe and the sealing support ring are flat surfaces, which is convenient for the sealing washer to be sleeved on the water pipe and the sealing support ring, and for the radial washer to be arranged on the adjacent surface of the water pipe and the sealing support ring to achieve the sealing effect.

[0013] The outer diameter of the sealing support ring is consistent with the outer diameter of the water pipe, so as to facilitate the sealing washer to be sleeved on the sealing support ring and the water pipe in sequence, which is beneficial to the sealed connection. To facilitate the connection between the inner sleeve and the sealing support ring and not affect the insertion of the sealing washer between the sealing support ring and the inner sleeve, the inner diameter of the inner sleeve is set to be larger than the outer diameter of the sealing support ring. A support plate is provided outside the sealing support ring, and two inner sleeves are symmetrically arranged on the support plate for installing the inner sleeve.

[0014] To facilitate pressing the entire sealing washer tightly against the outer walls of the water pipe and the sealing support ring to achieve a sealing effect, the sealing washer is arranged inside the inner sleeve, and the length of the sealing washer is shorter than the length of the inner sleeve.

[0015] The length of the inner wall support should be greater than the length of the inner sleeve on each side, so that when the inner wall support presses the sealing washer inward against the inner sleeve, it can provide sufficient support area. For this purpose, the length of the inner sleeve 6 is set to be less than 1 / 2 of the length of the inner wall support 6.

[0016] The beneficial effects of the present utility model are as follows: The two locking sleeves are respectively sleeved on one side of the corresponding water pipe end. The sealing washer and the inner wall support are installed on the corresponding water pipe at the same time, so that the radial washer is located between one end face of the water pipe and one end face of the sealing support ring. The sealing washer is sleeved on the outer wall of the water pipe and can be inserted between the sealing support ring and the inner sleeve. The inner sleeve is locked by the locking sleeve, so that the inner sleeve presses the sealing washer against the outer walls of the water pipe and the sealing support ring, sealing the gaps between the water pipe and the sealing support ring, as well as between the water pipe and the sealing support ring, preventing leakage.

[0017] Through the threaded connection between the locking sleeve and the inner sleeve, the inner sleeve can press the sealing washer circumferentially, and the pressing force is relatively uniform. Together with the inner wall support, it can prevent the water pipe from cracking and developing cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings:

[0019] Figure 1 is a schematic structural diagram;

[0020] Figure 2 is Figure 1 an enlarged structural diagram at A in

[0021] Figure 3 is a schematic diagram of the internal part of the structure;

[0022] Figure 4 is Figure 3 an enlarged structural diagram at B in

[0023] Figure 5 is a schematic diagram of the structure of the inner wall support, the sealing support ring and the support plate;

[0024] Figure 6 is a schematic diagram of the structure of the sealing washer and the radial washer;

[0025] The components represented by the reference numerals in the drawings are:

[0026] 1. Water pipe; 2. Inner wall support; 3. Sealing support ring; 4. Sealing washer; 5. Radial washer; 6. Inner sleeve; 61. Open long groove; 7. Locking sleeve; 8. Support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Refer to a waterproof and seepage-proof device for building engineering water supply and drainage pipes shown in Fig. 1. It is arranged between two water pipes 1 and includes an inner wall support member 2. The inner wall support is of a cylindrical structure and is arranged inside the adjacent ends of the two water pipes 1. The outer circular surface of the inner wall support member 2 is adapted to the inner wall of the water pipe 1. A sealing support ring 3 coaxial with it is arranged outside the inner wall support member 2. The sealing support ring 3 is arranged at the middle position of the outer circular surface of the inner wall support member 2 and is located between the two water pipes 1. The joints of the sealing support ring 3 with the two water pipes 1 are both sealed and connected through a sealing assembly. Therefore, there are two sets of sealing assemblies arranged symmetrically.

[0028] Regarding the specific structure of the sealing assembly, a single sealing assembly includes a sealing gasket 4. The sealing gasket 4 is of an annular structure, and its cross-section is a horizontally arranged elongated structure. The sealing gasket 4 is sleeved on the outer circular surfaces of the water pipe 1 and the adjacent sealing support ring 3 and is locked through a locking member, which plays a role in isolating and sealing the gap between the water pipe 1 and the sealing support ring 3. In this embodiment, the sealing support ring 3 is of an annular structure, and the outer diameter of the sealing support ring 3 is consistent with the outer diameter of the water pipe 1, which is convenient for the sealing gasket 4 to be sleeved on the water pipe 1 and the sealing support ring 3, preventing the sealing gasket 4 from being excessively deformed due to different diameters of the water pipe 1 and the sealing support ring 3 and affecting the sealing of the sealing gasket 4.

[0029] Refer to Fig. 6. To cooperate with the sealing gasket 4 to achieve a sealing effect on the two water pipes 1 and the sealing support ring 3 therebetween, a radial gasket 5 is provided in the gap between the opposite surfaces of the water pipe 1 and the adjacent sealing support ring 3. The radial gasket 5 is arranged inside the sealing gasket 4 and is located in the middle of the sealing gasket 4. The outer wall of the radial gasket 5 is connected to the inner wall of the sealing gasket 4. The radial gasket 5 and the sealing gasket 4 are of an integrally formed structure. The specific structure of the integral formation of the radial gasket 5 and the sealing gasket 4 is that the cross-sections of the radial gasket 5 and the sealing gasket 4 are in a T-shaped configuration. The radial direction of the radial gasket 5 is consistent with the radial direction of the inner wall support member 2. The radial gasket 5 is used to prevent water seepage from occurring in the gap between the outer wall of the water pipe 1 and the outer circular surface of the inner wall support member 2.

[0030] Refer to Fig. 1 and Figure 2 shown in the figure. The specific structure of the above-mentioned locking member is that the locking member includes a locking sleeve 7 and an inner sleeve 6 arranged on one side of the sealing support ring 3. The inner sleeve 6 is made of an elastic-plastic material and is sleeved outside the sealing gasket 4 and is locked with the sealing gasket 4 through the locking sleeve 7. The locking sleeve 7 is threadedly connected to the inner sleeve 6. The outer circular surface of the inner sleeve 6 is provided with an external thread, and the inner circular surface of the locking sleeve 7 is provided with an internal thread adapted to the external thread. By tightening the locking sleeve 7, the inner circular surface of the inner sleeve 6 can be closely attached to the outer circular surface of the sealing gasket 4, realizing the sealed connection of the sealing gasket 4 between the water pipe 1 and the sealing support ring 3.

[0031] Refer to Figure 3 and Figure 4As shown in the figure, regarding the specific structure in which the locking sleeve 7 and the inner sleeve 6 can press the sealing gasket 4, the outer circumferential surface of the inner sleeve 6 has a tapered external thread, and the diameter of the tapered external thread increases towards the side close to the sealing support ring 3. A tapered internal thread adapted thereto is provided inside the locking sleeve 7. The above is to facilitate locking the inner sleeve 6 on the outer wall of the sealing gasket 4 when tightening the locking sleeve 7. The inner sleeve 6 is provided with at least two opening slots 61 along the axial direction. The width of the opening slots 61 has a negligible impact on the sealing of the sealing gasket 4. The two opening slots 61 are symmetrically arranged. The opening slots 61 extend from the end of the inner sleeve 6 away from the sealing support ring 3 towards the sealing support ring 3. The length of the opening slots 61 can be shorter than or equal to the length of the inner sleeve 6. When the locking sleeve 7 is tightened, the inner sleeve 6 will deform when the locking sleeve 7 is tightened and be pressed inward by the locking sleeve 7, thereby pressing the sealing gasket 4 tightly.

[0032] According to the above structure, the utility model has the following functions. Two locking sleeves 7 are respectively sleeved on one side of the end of the corresponding water pipe 1. The sealing gasket 4 and the inner wall support member 2 are installed on the corresponding water pipe 1 at the same time. A radial gasket 5 is installed between the end face of the corresponding water pipe 1 and one end face of the sealing support ring 3, and the other radial gasket 5 is also installed in the same way. The sealing gasket 4 is sleeved on the outer wall of the water pipe 1 and can be inserted between the sealing support ring 3 and the inner sleeve 6. The inner sleeve 6 is locked by the locking sleeve 7, so that the inner sleeve 6 presses the sealing gasket 4 against the outer walls of the water pipe 1 and the sealing support ring 3, sealing the gap between the water pipe 1 and the sealing support ring 3 and the gap between the water pipe 1 and the sealing support ring 3 to prevent leakage.

[0033] See Figure 2 and Figure 5 As shown in the figure, to avoid obvious deformation of the sealing gasket 4 when it is sleeved on the water pipe 1 and the sealing support ring 3, which affects its sealing effect, the outer diameters of the water pipe 1 and the sealing support ring 3 are set to be the same, and the adjacent surfaces of the water pipe 1 and the sealing support ring 3 are flat surfaces, which is convenient for the sealing gasket 4 to be sleeved on the water pipe 1 and the sealing support ring 3, and for the radial gasket 5 to be arranged on the adjacent surface of the water pipe 1 and the sealing support ring 3 to achieve the sealing effect.

[0034] The outer diameter of the sealing support ring 3 is consistent with the outer diameter of the water pipe 1, so that it is convenient for the sealing washer 4 to be sleeved on the sealing support ring 3 and the water pipe 1 in sequence, which is beneficial to the sealing connection. To facilitate the connection between the inner sleeve 6 and the sealing support ring 3 and not affect the insertion of the sealing washer 4 between the sealing support ring 3 and the inner sleeve 6, a support plate 8 is provided on the outer side of the sealing support ring 3. The support plate 8 in this embodiment is an annular support plate 8, and the support plate 8 is integrally formed with the sealing support ring 3. The length of the support plate 8 in the axial direction is less than the length of the sealing support ring 3. The two inner sleeves 6 are coaxially arranged and symmetrically arranged on the support plate 8. The axis of the inner sleeve 6 is coaxially arranged with the axis of the support plate 8, so that there is a certain gap between the inner wall of the inner sleeve 6 and the outer wall of the sealing support ring 3. The gap is used to accommodate the sealing washer 4. Just by rotating the locking sleeve 7, the sealing washer 4 can be pressed tightly through the inner sleeve 6.

[0035] To facilitate pressing the entire sealing washer 4 against the outer walls of the water pipe 1 and the sealing support ring 3 to achieve a sealing effect, the sealing washer 4 is arranged inside the inner sleeve 6, and the length of the sealing washer 4 is shorter than the length of the inner sleeve 6. Similarly, the length of the inner wall support member 2 should be greater than the length of each inner sleeve 6 on each side so that the inner wall support member 2 can provide sufficient support area when the inner sleeve 6 presses the sealing washer 4 inward. Therefore, the length of the inner sleeve 6 is less than 1 / 2 of the length of the inner wall support member 2, and the length of the part of the inner wall support member 2 on one side of the sealing support ring 3 is greater than the length of a single inner sleeve 6.

Claims

1. A water supply and drainage pipe anti-seepage device for a construction project, arranged between two water pipes (1), characterized in that: It comprises an inner wall support member (2), the outer circumferential surface of which is adapted to the inner wall of the water pipe (1), a sealing support ring (3) coaxial with the inner wall support member (2) is arranged on the outer side of the inner wall support member (2), and the sealing support ring (3) is located between the two water pipes (1), and the joints between the sealing support ring (3) and the two water pipes (1) are sealed and connected via a sealing assembly; A single sealing assembly comprises a sealing gasket (4), which is sleeved on the outer side of the water pipe (1) and one end of the sealing support ring (3) adjacent thereto, and is locked by a locking member.

2. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 1, characterized in that: The locking member comprises a locking sleeve (7) and an inner sleeve (6); the inner sleeve (6) is made of an elastic plastic material, is arranged on one side of the sealing support ring (3) and is coaxial therewith, and is sleeved outside the sealing gasket (4); the locking sleeve (7) can rotate to squeeze the inner sleeve (6) toward the sealing gasket (4) until the inner wall of the sealing gasket (4) is tightly attached to the outer wall of the sealing support ring (3) of the water pipe (1).

3. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 2, characterized in that: The outer circumferential surface of the inner sleeve (6) and the inner circumferential surface of the locking sleeve (7) are matched conical locking surfaces.

4. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 3, characterized in that: The inner sleeve (6) is provided with at least two open long grooves (61) along the axial direction.

5. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 1, characterized in that: A radial gasket (5) is provided between the water pipe (1) and the sealing support ring (3), and the radial gasket (5) is connected to the inner wall of the sealing gasket (4).

6. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 5, characterized in that: The water pipe (1) and the sealing support ring (3) have the same outer diameter, and the adjacent surfaces of the water pipe (1) and the sealing support ring (3) are planes.

7. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 2, characterized in that: A support plate (8) is provided on the outer side of the sealing support ring (3), and the two inner sleeves (6) are symmetrically arranged on the support plate (8).

8. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 2, characterized in that: The sealing gasket (4) is located inside the inner sleeve (6), and the length of the sealing gasket (4) is shorter than the length of the inner sleeve (6).

9. The anti-seepage device for water supply and drainage pipes in construction projects according to claim 2, characterized in that: The length of the inner sleeve (6) is shorter than 1 / 2 of the length of the inner wall support (2).

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