Underground water pipeline connector

Abstract

The utility model relates to the field of underground water pipelines, and discloses an underground water pipeline connector which comprises a pipeline joint, a first pipeline is arranged in the pipeline joint, a second pipeline is in threaded connection with an end opening of the first pipeline, a fixing flange is fixedly connected to the outer wall of the pipeline joint, a connecting flange is fixedly connected to the outer wall of the first pipeline, and the connecting flange is fixedly connected to the outer wall of the second pipeline. The inner wall of the connecting flange is in threaded connection with a bolt, an annular notch is formed in the inner wall of the pipeline connector, and the inner wall of the annular notch is fixedly connected with an annular heating pipe. According to the utility model, by arranging the fixing flanges, the connecting flanges, the bolts and other structures, protection is provided when the underground pipelines are spliced pairwise, and meanwhile, relative heating is carried out on the weakest joint of the underground pipelines in a cold region, so that huge pressure generated at the joint due to freezing expansion of a water body is avoided, and the service life of the underground pipelines is prolonged. And the use stability of the underground pipeline in the cold area is improved while the sealing performance is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of underground water pipeline, especially underground water pipeline connector. BACKGROUND

[0002] Underground water pipeline is an important part of urban infrastructure, mainly used for collecting, transporting and processing various types of wastewater, such as domestic sewage, rainwater, etc., and is an important means to protect urban environmental health, prevent waterlogging and pollution spread.

[0003] Through the search, China patent publication No. CN218031886U discloses an anticorrosion connecting node of underground water pipeline component, which uses an inner connecting pipe and two layers of anticorrosion coating to shield and cover the connecting node of the two pipelines at the inner layer, uses an outer anticorrosion coating and a heat shrink tape to shield and cover the connecting node of the two pipelines at the outer layer, and covers the edge generated by the heat shrink tape through an H-shaped edge sealing heat shrink tape to prevent water vapor from entering the heat shrink tape through the gap, causing the heat shrink tape to fail, and then an asphalt layer is brushed to provide outer protection.

[0004] In the above technical solution, the anticorrosion layer is provided on the inner and outer sides of the pipeline connecting node to improve the protection of the pipeline connection, but the interface of the underground pipeline is the weakest area in the entire system. In some cold regions, the underground pipeline lacks the function of preventing freezing at the connection, and water freezing causes the pipeline to rupture and block, thereby reducing the stability of the underground pipeline. Therefore, an underground water pipeline connector is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides an underground water pipeline connector, which aims to improve the problem that the underground water pipeline connector in the prior art lacks the function of preventing freezing at the interface of the underground pipeline, causing the weakest interface to freeze and cause rupture or blockage.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an underground water pipeline connector, comprising a pipeline joint, an inner part of the pipeline joint is provided with a pipeline one, a port of the pipeline one is threadedly connected with a pipeline two, an outer wall of the pipeline joint is fixedly connected with a fixed flange, an outer wall of the pipeline one is fixedly connected with a connecting flange, an inner wall of the connecting flange is threadedly connected with a bolt, an inner wall of the pipeline joint is provided with an annular notch, an inner wall of the annular notch is fixedly connected with an annular heating pipe, an inner wall of the center of the pipeline joint is provided with an embedded groove, an inner wall of the embedded groove is fixedly connected with a sealing ring, and an outer wall of the pipeline joint is provided with a heat preservation assembly.

[0007] Further description of the above technical scheme:

[0008] The outer wall of the bolt is threadedly connected with the inner wall of the fixing flange, and the side wall of the fixing flange is in abutment with the side wall of the connecting flange.

[0009] As a further description of the above technical solution:

[0010] The sealing ring is sleeved on the outer wall of one end of the pipeline I adjacent to the pipeline II.

[0011] As a further description of the above technical solution:

[0012] The heat preservation assembly comprises a heat preservation layer, and the outer wall of the heat preservation layer is fixedly connected with a heat insulation plate.

[0013] As a further description of the above technical solution:

[0014] The surface of the heat preservation layer is fixedly connected with the outer surface of the pipeline joint.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the heat insulation plate is fixedly connected with an extension rod, the outer wall of the extension rod is sleeved with a spring, and the end of the spring is fixedly connected with a buffer plate.

[0017] As a further description of the above technical solution:

[0018] The movable end of the extension rod is fixedly connected with the inner surface of the buffer plate.

[0019] As a further description of the above technical solution:

[0020] The buffer plate is an annular plate in a shape smaller than a semicircle.

[0021] The utility model has the advantages of the following:

[0022] 1、 the utility model discloses a fixed flange, connecting flange, bolt, annular slot, annular heating pipe, embedding slot, sealing ring and heat preservation assembly are cooperated with each other, and when two-by-two splicing is carried out to the underground pipeline, protection is provided, and the weakest interface of the underground pipeline is heated relatively in cold regions, so that the ice expansion of water body is avoided to cause great pressure at the interface, the stability of the underground pipeline in cold regions is improved while the sealing property is guaranteed.

[0023] 2、 the utility model discloses an extension rod, spring and buffer plate are arranged, and the underground pipeline can be used to cope with complex geological environment or external impact, compensate geological subsidence or thermal expansion and cold contraction, inhibit vibration and fatigue damage, and prolong the service life of the underground pipeline. DRAWINGS

[0024] Figure 1A main body structure side view schematic diagram of a kind of underground water pipeline connector is proposed in the utility model;

[0025] Figure 2 A main body structure partial separation side view schematic diagram of a kind of underground water pipeline connector is proposed in the utility model;

[0026] Figure 3 A pipeline joint structure section view schematic diagram of a kind of underground water pipeline connector is proposed in the utility model;

[0027] Figure 4 A kind of underground water pipeline connector of the utility model is proposed; Figure 3 A area in A enlargish schematic diagram;

[0028] Figure 5 A pipeline joint structure side view schematic diagram of a kind of underground water pipeline connector is proposed in the utility model.

[0029] Legend:

[0030] 1, pipeline one;2, pipeline two;3, pipeline joint;4, fixed flange;5, connecting flange;6, bolt;7, annular notch;8, annular heating pipe;9, embedded slot;10, sealing ring;11, heat preservation layer;12, heat insulation plate;13, telescopic rod;14, spring;15, buffer plate. Specific embodiments

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0032] Refer to Figures 1-3The utility model provides an underground water pipeline connector, including pipeline joint 3, the inside of pipeline joint 3 is provided with pipeline one 1, the port of pipeline one 1 is screw thread connection has pipeline two 2, pipeline joint 3 can cover the joint of pipeline one 1 with pipeline two 2, the outer wall of pipeline joint 3 is fixedly connected with fixed flange 4, the outer wall of pipeline one 1 is fixedly connected with connecting flange 5, the lateral wall of fixed flange 4 and the lateral wall of connecting flange 5 are in accord, the inner wall of connecting flange 5 is screw thread connection has bolt 6, the outer wall of bolt 6 and the inner wall of fixed flange 4 are screw thread connection, through fixed flange 4 and connecting flange 5 can make the interface of pipeline one 1 with pipeline two 2 be at the center of pipeline joint 3, the inner wall of pipeline joint 3 is seted up with annular slot 7, the inner wall of annular slot 7 is fixedly connected with annular heating pipe 8, annular heating pipe 8 is provided with several groups with annular slot 7, and equidistantly distributed at the both sides of pipeline joint 3, the guide of annular heating pipe 8 is through pipeline joint 3 for power supply, the inner wall of the center of pipeline joint 3 is seted up with embedding groove 9, the inner wall of embedding groove 9 is fixedly connected with sealing ring 10, sealing ring 10 is set on the outer wall of the one end of pipeline one 1 and pipeline two 2 adjacent, sealing ring 10 inner surface is provided with antiskid line, when pipeline one 1 and pipeline two 2 enter the inside of pipeline joint 3, sealing ring 10 is extruded and can be tightly attached with pipeline interface.

[0033] Referring to Figures 3-5 The outer wall of pipeline joint 3 is provided with a heat preservation assembly, which comprises a heat preservation layer 11 and a heat insulation plate 12. The heat preservation layer 11 is made of polyurethane foam or rock wool, which can reduce heat loss. The surface of the heat preservation layer 11 is fixedly connected with the outer surface of the pipeline joint 3. The heat preservation layer 11 can reduce the heat loss of the annular heating pipe 8 after being turned on. The outer wall of the heat preservation layer 11 is fixedly connected with the heat insulation plate 12, which can prevent the heat source from being transmitted to the outside of the pipeline joint 3.

[0034] Referring to Figures 1-3 The outer wall of the heat insulation plate 12 is fixedly connected with an extension rod 13, the movable end of the extension rod 13 is fixedly connected with the inner surface of a buffer plate 15, the outer wall of the extension rod 13 is sleeved with a spring 14, the end of the spring 14 is fixedly connected with the buffer plate 15, the buffer plate 15 is an annular plate with a semicircular shape, and the buffer plate 15 can reduce the impact on the pipeline joint 3 when the pipeline joint 3 is in the ground and encounters ground collapse, through the extension and contraction performance of the extension rod 13 and the spring 14.

[0035] Working principle: the pipeline one 1 and pipeline two 2 are inserted into the two ends of the pipe joint 3 respectively, rotate the pipeline one 1 to make it gradually connected with the pipeline two 2, when the connecting flange 5 and the fixed flange 4 are in the state of close contact, the two groups of pipelines complete splicing, rotate the whole pipeline, ensure that the flange holes of the connecting flange 5 and the fixed flange 4 are in the state of alignment, then fix them in turn through the multiple groups of bolts 6, at this time the sealing ring 10 is close to the interface of the pipeline one 1 and the pipeline two 2, ensure the sealing degree of the interface, when the cold weather, multiple groups of annular heating pipes 8 are opened to heat the pipe joint 3, the ice body expands when the water freezes in cold weather, the ice body expansion will produce great pressure on the pipe wall and the joint, the pipeline interface is the weak link of the pipeline system, avoid the influence of water freezing on the pipeline connection, at the same time, the rubber sealing ring 10 will harden and shrink under low temperature, which will cause the joint gap to increase, the external groundwater seeps in and freezes, further expand the gap, ensure the stability of the underground pipeline connection.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A groundwater pipe connector, comprising a pipe joint (3), wherein a pipe first (1) is disposed inside the pipe joint (3), and a pipe second (2) is threadedly connected to the port of the pipe first (1), characterized in that: The outer wall of the pipe joint (3) is fixedly connected to a fixed flange (4), the outer wall of the pipe (1) is fixedly connected to a connecting flange (5), the inner wall of the connecting flange (5) is threaded with a bolt (6), the inner wall of the pipe joint (3) is provided with an annular groove (7), the inner wall of the annular groove (7) is fixedly connected to an annular heating tube (8), the inner wall of the center of the pipe joint (3) is provided with an embedded groove (9), the inner wall of the embedded groove (9) is fixedly connected to a sealing ring (10), and the outer wall of the pipe joint (3) is provided with a heat insulation component.

2. The underground water pipe connector according to claim 1, characterized in that: The outer wall of the bolt (6) is threaded to the inner wall of the fixed flange (4), and the side wall of the fixed flange (4) is in contact with the side wall of the connecting flange (5).

3. The underground water pipe connector according to claim 1, characterized in that: The sealing ring (10) is fitted onto the outer wall of the end of pipe one (1) adjacent to pipe two (2).

4. A groundwater pipe connector according to claim 1, characterized in that: The insulation component includes an insulation layer (11), and an insulation board (12) is fixedly connected to the outer wall of the insulation layer (11).

5. A groundwater pipe connector according to claim 4, characterized in that: The surface of the insulation layer (11) is fixedly connected to the outer surface of the pipe joint (3).

6. A groundwater pipe connector according to claim 4, characterized in that: The outer wall of the heat insulation plate (12) is fixedly connected to a telescopic rod (13), and a spring (14) is sleeved on the outer wall of the telescopic rod (13). A buffer plate (15) is fixedly connected to the end of the spring (14).

7. A groundwater pipe connector according to claim 6, characterized in that: The movable end of the telescopic rod (13) is fixedly connected to the inner surface of the buffer plate (15).

8. A groundwater pipe connector according to claim 6, characterized in that: The buffer plate (15) is an annular plate with a shape smaller than a semicircle.

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