A concrete drainage pipe joint sealing structure

Abstract

This utility model discloses a sealing structure for the butt joint of concrete drainage pipes, relating to the field of drainage pipe connection technology. It includes a pipe, a threaded rod, a sealing plate, a connecting ring, a sealing gasket, a perforated slider, and grooves, rod grooves, and annular grooves formed on the pipe. The sealing plate is fitted onto the butt joint end of the pipe, with the inner sealing gasket conforming to the outer wall of the pipe. The perforated slider on the sealing gasket is embedded in the annular groove at the end of the pipe. The connecting ring is threadedly connected to the pipe and abuts against the sealing plate to fix the sealing assembly. The threaded rod passes through the perforated slider, can slide along the groove, and can be temporarily fixed by engaging the rod groove. When the two pipes are joined, the threaded rod locks in place to achieve a sealed connection. This structure, through multiple sealing mechanisms and a convenient fixing structure, solves the problems of poor sealing effect and inconvenient installation in traditional drainage pipe butt joints, improving the sealing performance and operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe connection technology, and in particular to a sealing structure for the butt joint of concrete drainage pipes. Background Technology

[0002] Concrete drainage pipes are widely used in municipal drainage, farmland irrigation, and other projects. The quality of their connection directly affects the stability and service life of the drainage system. Currently, when connecting concrete drainage pipes, simple rubber ring seals are used in conjunction with flanges for fixing, or the seal is directly achieved by pouring cement.

[0003] However, the above method has obvious drawbacks:

[0004] On the one hand, rubber rings are prone to aging and deformation due to long-term water erosion and temperature changes, resulting in a decrease in sealing effect and leakage; on the other hand, cement-cast seals are difficult to disassemble and repair, and have poor flexibility.

[0005] On the other hand, flange fixing requires precise alignment of bolt holes, which is difficult to adjust during installation, and the bolts are prone to corrosion and loosening, affecting the stability of the fixing; some structures lack convenient pre-fixing components, and the pipes are prone to displacement during docking, further reducing the reliability of the seal.

[0006] Therefore, there is an urgent need for a concrete drainage pipe butt sealing structure that provides stable sealing, is easy to install and disassemble, and has a reliable fixing structure, in order to solve the problems existing in the current technology. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a sealing structure for the connection of concrete drainage pipes, which solves the technical problems of poor sealing effect, inconvenient installation and disassembly, and unreliable fixing structure when connecting concrete drainage pipes.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A concrete drainage pipe butt sealing structure includes a pipe, a sealing plate is provided at one end of the pipe, an installation structure adapted to a connecting ring is provided on the sealing plate, and the connecting ring is connected to the sealing plate in cooperation.

[0010] It also includes two threaded rods, and the pipe has a sliding groove for the threaded rods to slide and a rod groove communicating with the sliding groove;

[0011] The sealing plate has a sealing gasket on its inner side, and the sealing gasket has a perforated slider on its inner side. The end of the pipe has an annular groove that matches the perforated slider.

[0012] Preferably, the sealing plate is an annular plate, and the inner side of the sealing plate is in contact with the outer wall of the end of the pipe.

[0013] Preferably, the inner side of the connecting ring is provided with an internal thread, and the outer wall of the end of the pipe is provided with an external thread that matches the internal thread, and the connecting ring and the pipe are connected by a thread.

[0014] Preferably, the chute extends axially along the pipe, the rod groove extends circumferentially along the pipe, and the rod groove is perpendicular to and connected to the chute.

[0015] Preferably, both ends of the threaded rod are provided with external threads, and the length of the threaded rod is greater than the axial length of the pipe.

[0016] Preferably, the sealing gasket is made of rubber, and the sealing gasket is bonded and fixed to the sealing plate.

[0017] Preferably, there are two perforated sliders, and the two perforated sliders are symmetrically distributed about the center of the sealing gasket. The cross-section of the annular groove is a rectangle adapted to the perforated sliders, and the perforated sliders can slide along the annular groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Excellent sealing performance: The sealing gasket on the inner side of the sealing plate fits tightly against the outer wall of the pipe, and the perforated slider is embedded in the annular groove at the end of the pipe to form a double sealing structure, which effectively prevents water leakage; the rubber sealing gasket has good elasticity and can adapt to the slight deformation when the pipe is connected, further improving the sealing stability.

[0020] Easy installation and disassembly: The threaded rod can slide along the groove and be inserted into the rod groove for temporary fixation, which facilitates quick alignment when two pipes are connected; the connecting ring is connected to the pipe by threads, and the sealing plate can be tightened or loosened by rotating it, without the need for complicated tools, which greatly reduces the difficulty of installation and subsequent maintenance.

[0021] Reliable fixed structure: The connecting ring continuously presses the sealing plate with the threaded action to prevent the sealing components from loosening; the two ends of the threaded rod are locked with nuts to firmly connect the two connecting pipes. With the circumferential limit of the rod groove, it prevents the pipes from shifting due to water flow impact or external force after docking, thus improving the overall structural stability.

[0022] Highly adaptable: The perforated slider can slide along the annular groove, allowing the sealing plate and gasket to be finely adjusted in position along the circumference of the pipe, accommodating minor misalignments during docking, ensuring that the sealing components are always tightly fitted to the outer wall of the pipe, and suitable for pipe docking needs in different installation environments. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is an overall structural diagram of the present invention;

[0025] Figure 2 This is a structural diagram of the pipeline in this utility model;

[0026] Figure 3 This is a structural diagram of the connecting ring in this utility model;

[0027] Figure 4 This is a structural diagram of the slider with holes in this utility model.

[0028] Legend: 1. Pipe; 2. Threaded rod; 3. Sealing plate; 4. Connecting ring; 5. Slide groove; 6. Rod groove; 7. Annular groove; 8. Sealing gasket; 9. Sliding block with hole. Detailed Implementation

[0029] This application provides a concrete drainage pipe connection sealing structure, which effectively solves the technical problems of poor sealing effect, inconvenient installation and disassembly, and unreliable fixing structure when connecting existing concrete drainage pipes.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the overall technical solution in this application embodiment is as follows:

[0032] To address the problems existing in the prior art, this utility model provides a sealing structure for the connection of concrete drainage pipes, aiming to solve the problems of poor sealing effect and inconvenient installation and disassembly when connecting existing concrete drainage pipes. By optimizing the sealing components and fixing components of the connection structure, the sealing performance and ease of operation of the drainage pipe connection are improved.

[0033] The concrete drainage pipe butt sealing structure of this embodiment includes a pipe 1, a threaded rod 2, a sealing plate 3, a connecting ring 4, a sealing gasket 8, and a perforated slider 9, and the pipe 1 is provided with a corresponding sliding groove 5, a rod groove 6, and an annular groove 7.

[0034] Pipe 1 is a tubular structure made of concrete, and its two ends are used to connect with another pipe 1. In order to achieve structural fit during connection, the outer wall of the connection end of pipe 1 is machined with external threads, and a sliding groove 5 and a rod groove 6 are opened on the outer wall near the connection end. The sliding groove 5 extends along the axial direction of pipe 1 and its length is slightly less than the distance from the connection end of pipe 1 to the middle, so as to allow the threaded rod 2 to slide along the axial direction of pipe 1.

[0035] The rod groove 6 extends circumferentially along the pipe 1 and is perpendicular to and connected to the slide groove 5 (one end of the rod groove 6 is connected to the end of the slide groove 5). Its length is 1 / 4 to 1 / 3 of the outer circumference of the pipe 1. It is used to allow the threaded rod 2 to rotate circumferentially along the pipe 1 and engage after the threaded rod 2 slides to the designated position, thereby achieving temporary fixation of the threaded rod 2.

[0036] The sealing plate 3 is a circular steel plate with an inner diameter that matches the outer diameter of the pipe 1, and can be fitted onto the outer wall of the connecting end of the pipe 1.

[0037] A sealing gasket 8 is bonded and fixed to the inner side of the sealing plate 3 (i.e. the side that contacts the outer wall of the pipe 1). The sealing gasket 8 is made of rubber and has a thickness of 3~5mm. Its inner diameter is the same as that of the sealing plate 3. When the sealing plate 3 is fitted onto the pipe 1, the sealing gasket 8 can fit tightly against the outer wall of the pipe 1, thus initially improving the sealing performance.

[0038] The inner side of the sealing gasket 8 (i.e. the side closest to the pipe 1) has two perforated sliders 9 integrally formed. The two perforated sliders 9 are symmetrically distributed about the center of the sealing gasket 8. The middle of the perforated slider 9 has a through hole for the threaded rod 2 to pass through, and the cross section of the perforated slider 9 is rectangular.

[0039] An annular groove 7 is provided at the end of the pipe 1. The annular groove 7 extends along the circumference of the pipe 1. Its cross-section is a rectangle that matches the perforated slider 9, and its depth is the same as the thickness of the perforated slider 9.

[0040] When the sealing plate 3 is fitted onto the pipe 1, the perforated slider 9 can be embedded in the annular groove 7 and can slide freely along the annular groove 7, thereby driving the sealing plate 3 and the sealing gasket 8 to make slight adjustments to their positions around the pipe 1.

[0041] The connecting ring 4 is an annular structure with internal threads machined on the inner side. Its inner diameter is adapted to the outer diameter of the mating end of the pipe 1, and its internal thread is matched with the external thread on the outer wall of the pipe 1.

[0042] The length of the connecting ring 4 is 5~8cm. After the sealing plate 3 is fitted onto the pipe 1, the connecting ring 4 is screwed from the non-butt end of the pipe 1 to the butt end until the end of the connecting ring 4 abuts against the outside of the sealing plate 3 (i.e. the side away from the butt end of the pipe 1). The sealing plate 3 and the sealing gasket 8 are pressed tightly onto the pipe 1 by the threaded engagement between the connecting ring 4 and the pipe 1, thus preventing the sealing components from loosening.

[0043] The threaded rod 2 is a long metal rod with external threads machined at both ends. Its length is 1.5 to 2 times the diameter of pipe 1 (greater than the axial butt joint length of a single pipe 1).

[0044] After the threaded rod 2 passes through the through hole of the slider 9, it can slide along the groove 5. When it slides to the designated position of the docking end of the pipe 1, the threaded rod 2 is rotated to make it lock into the rod groove 6. At this time, the two ends of the threaded rod 2 extend out of the two sides of the pipe 1, which makes it easy to align with the threaded rod 2 of another pipe 1 and lock it with a nut.

[0045] The installation process is as follows:

[0046] Place the sealing plate 3 on the mating end of the pipe 1, so that the perforated slider 9 on the inner side of the sealing gasket 8 is embedded in the annular groove 7, and adjust the position of the sealing plate 3 to ensure that the sealing gasket 8 fits tightly against the outer wall of the pipe 1.

[0047] Screw the connecting ring 4 into the non-butt end of the pipe 1 until the end of the connecting ring 4 abuts against the sealing plate 3 to complete the fixing of the sealing assembly;

[0048] Pass the threaded rod 2 through the through hole of the slider 9 with a hole, push the threaded rod 2 along the slide groove 5 towards the docking end of the pipe 1, and after reaching the preset position, rotate the threaded rod 2 to make it lock into the rod groove 6, thus completing the initial fixing of the threaded rod 2;

[0049] Repeat steps 1-3 above for the other pipe 1, then align the mating ends of the two pipes 1, adjust the threaded rods 2 of the two pipes 1 to align their ends, and lock the threaded rods 2 of the two pipes 1 with nuts. At this time, the mating ends of the two pipes 1 are tightly fitted under the action of the sealing gasket 8, achieving a sealed connection.

[0050] With the above structure, this utility model achieves initial sealing through the cooperation of sealing plate 3, sealing gasket 8 and annular groove 7, enhances the stability of the sealing assembly through connecting ring 4, and achieves rapid fixing during docking through threaded rod 2, sliding groove 5 and rod groove 6, thus improving the overall sealing performance and installation efficiency of concrete drainage pipe docking.

[0051] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A sealing structure for the butt joint of concrete drainage pipes, characterized in that, Includes a pipe (1), one end of which is provided with a sealing plate (3), and the sealing plate (3) is provided with an installation structure adapted to a connecting ring (4), and the connecting ring (4) is connected to the sealing plate (3). It also includes two threaded rods (2), and the pipe (1) is provided with a sliding groove (5) for the threaded rods (2) to slide and a rod groove (6) communicating with the sliding groove (5); The sealing plate (3) is provided with a sealing gasket (8) on its inner side, and a perforated slider (9) is provided on the inner side of the sealing gasket (8). The end of the pipe (1) is provided with an annular groove (7) that is compatible with the perforated slider (9).

2. The concrete drainage pipe butt sealing structure as described in claim 1, characterized in that, The sealing plate (3) is an annular plate, and the inner side of the sealing plate (3) is in contact with the outer wall of the end of the pipe (1).

3. The concrete drainage pipe butt sealing structure as described in claim 1, characterized in that, The inner side of the connecting ring (4) is provided with an internal thread, and the outer wall of the end of the pipe (1) is provided with an external thread that matches the internal thread. The connecting ring (4) and the pipe (1) are connected by a thread.

4. The concrete drainage pipe butt sealing structure as described in claim 1, characterized in that, The chute (5) extends axially along the pipe (1), the rod groove (6) extends circumferentially along the pipe (1), and the rod groove (6) is perpendicular to and connected to the chute (5).

5. The concrete drainage pipe butt sealing structure as described in claim 1, characterized in that, Both ends of the threaded rod (2) are provided with external threads, and the length of the threaded rod (2) is greater than the axial length of the pipe (1).

6. The concrete drainage pipe butt sealing structure as described in claim 1, characterized in that, The sealing gasket (8) is made of rubber and is bonded and fixed to the sealing plate (3).

7. The concrete drainage pipe butt sealing structure as described in claim 1, characterized in that, Two perforated sliders (9) are provided, and the two perforated sliders (9) are symmetrically distributed about the center of the sealing gasket (8).

8. The concrete drainage pipe butt sealing structure as described in claim 1, characterized in that, The cross-section of the annular groove (7) is a rectangle that is adapted to the perforated slider (9), and the perforated slider (9) can slide along the annular groove (7).

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