Leakage-proof device for tap water supply pipeline of underground road

Abstract

The utility model discloses a leakage-proof device for a tap water supply pipeline of an underground road, which relates to the technical field of tap water supply pipes, comprises a tap water pipe I and a tap water pipe II, and is characterized in that an electromagnetic three-way valve is additionally arranged on the tap water pipe I, and a water outlet above the electromagnetic three-way valve is connected with the upper part of the tap water pipe II through an auxiliary flow guide pipe; an electromagnetic valve is additionally arranged on the first tap water pipe, an electromagnetic valve is additionally arranged on the second tap water pipe, the first tap water pipe and the second tap water pipe are connected through a leakage-proof assembly, and a detection assembly is arranged below the leakage-proof assembly through a fixing rod. Tap water directly passes through the communicating port of the air bag and does not need to pass through the connecting position during flow guiding, the electromagnetic three-way valve and the electromagnetic valve can be automatically operated through the controller when the liquid level sensor detects leakage of the connecting position, the tap water jumps over the connecting position and directly enters the next pipeline, and the temporary emergency effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tap water supply pipes, in particular to a leakage prevention device for underground road tap water supply pipes. Background Art

[0002] The water supply pipe leak prevention device is designed to prevent the water supply pipe from leaking. The working principles and functions of this type of device are different, but they are all designed to ensure the safety of the pipeline system and the effective use of water resources.

[0003] Reference may be made to an existing document regarding a leak-proof device for a tap water supply pipe (CN218326672U). The reference document fixes the first water pipe and the second water pipe to the fixed pipe, docks the first water pipe and the second water pipe through the fixed pipe, and fixes the fixed pipe to the first water pipe and the fixed pipe to the second water pipe through an arc plate and a limit strip, thereby facilitating docking of the tap water supply pipes.

[0004] Pipeline joints are prone to leakage, especially when using pipes of different materials or specifications for connection. Pipes are generally connected by flange connections. Loose nuts or loose connections will cause leakage at the joints. In order to improve the sealing of the joints, sealing rings are usually added. However, sealing rings are prone to aging and therefore need to be replaced frequently. Therefore, when leakage occurs at the joint, in order to reduce leakage, the pipeline is generally closed and waited for maintenance, which will affect normal diversion. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the prior art and to propose a leak-proof device for underground road tap water supply pipes. The utility model inflates the airbag in the leak-proof component so that the airbag abuts the inner wall of the connecting end of the first and second tap water pipes after expansion. When the tap water is diverted, it directly passes through the connecting port of the airbag without passing through the connection. When the liquid level sensor detects a leak at the connection, the controller automatically operates the electromagnetic three-way valve and the electromagnetic valve, allowing the tap water to skip the connection and directly enter the next pipe, thus playing a temporary emergency role.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A leakage prevention device for an underground road tap water supply pipeline comprises: a first water pipe and a second water pipe, the first water pipe is additionally provided with an electromagnetic three-way valve, the upper water outlet of the electromagnetic three-way valve is connected to the upper part of the second water pipe via an auxiliary guide pipe, the second water pipe is additionally provided with an electromagnetic valve, the first water pipe and the second water pipe are connected via a leakage prevention assembly, and a detection assembly is provided below the leakage prevention assembly via a fixing rod.

[0008] The utility model is further configured as a leak-proof component comprising: a main duct, which is fixed on the inner side of the fixing rod; and a butt-joint pipe, which is integrally connected to both ends of the main duct.

[0009] The utility model is further configured as a leak-proof component and also includes: an air bag, which is arranged inside the docking pipe and partially arranged inside the water pipe 1 and the water pipe 2. After the air bag is inflated, a connecting port is provided in the center, and an inflation tube is integrally provided above the air bag.

[0010] The utility model is further configured such that an inflation port is opened above the butt-jointing pipe, the inflation tube is fixed in the inflation port, and the inflation port is closed by a threaded sealing cover.

[0011] The utility model is further configured such that the two butt-joint pipes are flange-connected to the first water pipe and the second water pipe respectively.

[0012] The utility model is further configured such that the detection component includes: a support base fixed below the fixing rod, two detection slots are provided above the support base, and liquid level sensors are installed in the detection slots.

[0013] The utility model is further configured such that a controller is connected to the front end of the support base, the controller is electrically connected to the electromagnetic three-way valve and the electromagnetic valve, and is signal-connected to the liquid level sensor.

[0014] The beneficial effects of the utility model are:

[0015] 1. The water supply pipe leakage prevention device is connected between the water pipe 1 and the water pipe 2 through a leakage prevention component. The air bag in the leakage prevention component is inflated. After the air bag expands, it will abut the inner wall of the connection between the water pipe 1 and the water pipe 2 to achieve a sealing effect. During the diversion process, the tap water passes through the connecting port in the center of the air bag without directly passing through the flange connection, so that the instability of the connection is not easy to affect the normal diversion, thereby reducing the occurrence of leakage.

[0016] 2. When the airbag of the tap water supply pipe leakage prevention device fails or cannot effectively prevent leakage, the liquid level sensor in the detection component will detect the leakage amount at the connection. When the preset value is reached, the controller will turn the electromagnetic three-way valve and close the electromagnetic valve, so that the tap water will directly enter the tap water pipe 2 through the auxiliary diversion pipe. Skipping the connection for diversion can play an emergency role, reducing leakage while ensuring normal diversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an underground road tap water supply pipeline leakage prevention device proposed by the utility model;

[0018] Figure 2This is a schematic diagram of the water pipe structure of an underground road water supply pipeline leakage prevention device proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the anti-leakage component of an anti-leakage device for underground road tap water supply pipelines proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a detection component of an underground road tap water supply pipeline leakage prevention device proposed by the utility model.

[0021] In the figure: 1. Support base; 2. Main guide pipe; 3. Water pipe 1; 4. Water pipe 2; 5. Solenoid three-way valve; 6. Auxiliary guide pipe; 7. Butt joint; 8. Air bag; 9. Connecting port; 10. Inflation pipe; 11. Inflation port; 12. Sealing cover; 13. Detection tank; 14. Fixing rod; 15. Liquid level sensor; 16. Controller; 17. Solenoid valve. DETAILED DESCRIPTION

[0022] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0023] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0025] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0026] Reference Figure 1-4A leakage prevention device for an underground road tap water supply pipeline includes: a leakage prevention component and a detection component. The leakage prevention component connects the tap water pipe 1 3 and the tap water pipe 2 4. The detection component is located below the connection between the tap water pipe 1 3 and the tap water pipe 2 4 and is used to detect the leakage amount at the connection.

[0027] For details, please refer to Figure 2 , an electromagnetic three-way valve 5 is installed on the water pipe 1 3, and an electromagnetic valve 17 is installed on the water pipe 2 4. During daily use, the electromagnetic three-way valve 5 flows from port A to port B, and the electromagnetic valve 17 is in a normally open state.

[0028] Furthermore, an auxiliary guide pipe 6 is integrally connected above the water pipe 2 4 . The auxiliary guide pipe 6 is located on one side of the solenoid valve 17 , and the other end of the auxiliary guide pipe 6 is welded to the upper C port of the solenoid three-way valve 5 .

[0029] For details, please refer to Figure 3 The leakage-proof component includes a main draft pipe 2 and two docking pipes 7. The two docking pipes 7 have the same inner diameter as the main draft pipe 2, and the same inner diameter as the water pipe 1 3 and the water pipe 2 4. The two docking pipes 7 are integrally connected to the two ends of the main draft pipe 2, and the two docking pipes 7 are flange-connected to the ends of the water pipe 1 3 and the water pipe 2 4.

[0030] At the same time, an airbag 8 is provided in the butt joint tube 7. The middle part of the airbag 8 is hollow after expansion. A hard inflation tube 10 is provided above the airbag 8. The inflation tube 10 is fixed in the inflation port 11 opened above the butt joint tube 7.

[0031] In this embodiment, when connecting the leak-proof component, remove the sealing cover 12 above the inflation port 11. The sealing cover 12 and the inflation port 11 are threadedly connected for easy assembly and disassembly. Connect the external air pump to the inflation tube 10 to inflate the airbag 8. After the airbag 8 is filled with air, it takes on a cylindrical shape in the center. The airbag 8 can be tightly attached to the inner wall of the connecting end of the water pipe 1 3 and the water pipe 2 4, and at the same time, it can be tightly attached to the inner wall of the two butt joints 7. The connection is sealed so that the liquid is conducted backward through the connecting port 9 in the center of the airbag 8.

[0032] This design eliminates the need for the flow to pass directly through the flange connection during the diversion process, thus reducing the impact of unstable flange connections.

[0033] Furthermore, a fixing rod 14 is fixed to the outside of the main duct 2 , and the detection assembly is connected to the bottom of the fixing rod 14 .

[0034] Specifically, such as Figure 4As shown, the detection component includes a support base 1, a liquid level sensor 15 and a controller 16. The support base 1 can support the leak-proof component. Two detection slots 13 are provided above the support base 1. Liquid level sensors 15 are installed in the detection slots 13. The controller 16 is arranged in front of the support base 1.

[0035] Furthermore, the controller 16 has a built-in A / D converter that can be used to perform analog-to-digital conversion on the signal of the liquid level sensor 15, while the built-in central processing unit processes the data.

[0036] In this embodiment, a certain liquid level value is preset by the controller 16. When the leakage reaches the position of the liquid level sensor 15, the liquid level sensor 15 transmits a signal to the controller 16. The controller 16 automatically operates the electromagnetic three-way valve 5 and the electromagnetic valve 17. The electromagnetic three-way valve 5 begins to turn and flow from port A to port C. The electromagnetic valve 17 is closed at the same time, so that the tap water will not pass through the leaking connection, reducing leakage. At the same time, the tap water is directly diverted to the tap water pipe 2 4 through the auxiliary diversion pipe 6, which can play an emergency role and ensure normal diversion.

[0037] Working principle: When using the present invention, the water pipe 1 3 and the water pipe 2 4 are connected through a leak-proof component, and the air bag 8 in the leak-proof component is inflated. After the air bag 8 expands, it will abut the inner wall of the connection between the water pipe 1 3 and the water pipe 2 4 to achieve a sealing effect. During the diversion process, the tap water passes through the connecting port 9 in the center of the air bag 8, and does not need to pass directly through the flange connection, so that the instability of the connection is not easy to affect the normal diversion, and the occurrence of leakage is reduced. When the air bag 8 fails or cannot effectively prevent leakage, the liquid level sensor 15 in the detection component will detect the leakage amount at the connection. When the preset value is reached, the controller 16 will turn the electromagnetic three-way valve 5 and close the electromagnetic valve 17, so that the tap water enters the water pipe 2 4 directly through the auxiliary diversion pipe 6. Skipping the connection for diversion can play an emergency role, while reducing leakage and ensuring normal diversion.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A leakage prevention device for underground road tap water supply pipeline, comprising: The first water pipe (3) and the second water pipe (4) are characterized in that the first water pipe (3) is additionally provided with an electromagnetic three-way valve (5), the upper water outlet of the electromagnetic three-way valve (5) is connected to the upper part of the second water pipe (4) through an auxiliary guide pipe (6), the second water pipe (4) is additionally provided with an electromagnetic valve (17), the first water pipe (3) and the second water pipe (4) are connected through a leak-proof component, and a detection component is provided below the leak-proof component through a fixing rod (14).

2. The underground road tap water supply pipeline leakage prevention device according to claim 1, characterized in that: The leak-proof components include: a main flow pipe (2) fixed on the inner side of the fixing rod (14); The butt-jointing pipes (7) are integrally connected to both ends of the main flow pipe (2).

3. The underground road tap water supply pipeline leakage prevention device according to claim 2, characterized in that: The leak-proof components also include: The airbag (8) is arranged inside the butt joint (7) and partially arranged inside the water pipe 1 (3) and the water pipe 2 (4). After the airbag (8) is inflated, a communication port (9) is provided at the center. An inflation tube (10) is integrally provided above the airbag (8).

4. The underground road tap water supply pipeline leakage prevention device according to claim 3, characterized in that: An inflation port (11) is provided above each of the butt joint pipes (7), each of the inflation pipes (10) is fixed in the inflation port (11), and the inflation port (11) is sealed by a threaded sealing cover (12).

5. The underground road tap water supply pipeline leakage prevention device according to claim 2, characterized in that: The two butt-joint pipes (7) are flange-connected to the first water pipe (3) and the second water pipe (4) respectively.

6. The underground road tap water supply pipeline leakage prevention device according to claim 1, characterized in that: The detection components include: A support base (1) is fixed below the fixed rod (14), and two detection slots (13) are provided above the support base (1), and liquid level sensors (15) are installed in each of the detection slots (13).

7. The underground road tap water supply pipeline leakage prevention device according to claim 6, characterized in that: The front end of the support base (1) is connected to a controller (16), and the controller (16) is electrically connected to the electromagnetic three-way valve (5) and the electromagnetic valve (17), and is signal-connected to the liquid level sensor (15).

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