Building water supply and drainage pipeline connecting device
By introducing a combination structure of L-shaped clamps and limit rings and a liquid sensor alarm system into the connection device of building water supply and drainage pipes, the problems of easy loosening and leakage of bolt connections are solved, the stability and sealing performance are improved, work efficiency is increased and water resources are saved.
Patent Information
- Application Number
- CN202520242134.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In existing building water supply and drainage pipe connection devices, bolted connections are prone to loosening, resulting in unstable connections and easy leakage, and there is a lack of effective reinforcement mechanisms.
The system employs a combination structure of an L-shaped clamp and a limiting ring. A spring-driven fixing rod moves within the movable hole and engages with the clamping hole, thus securing the limiting ring and improving connection stability. Simultaneously, a liquid sensor and alarm are installed to detect leaks and provide timely alerts.
It improves the stability and sealing of pipe connections, avoids loosening of threaded rods and leakage, increases work efficiency and saves water resources.
Smart Images

Figure CN223924154U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe connection technology, specifically a building water supply and drainage pipe connection device. Background Technology
[0002] With the increasing number of buildings nowadays, water is essential for concrete mixing and other water needs during the construction process. Therefore, water supply and drainage pipes are of paramount importance in construction projects, and the connection of these pipes is of utmost importance.
[0003] The Chinese Patent Network discloses a building water supply and drainage pipe connection device, publication number CN221121336U. Although it solves the problem of complex structure and inconvenient connection of existing pipe connection devices, this prior art mainly uses bolts for connection. However, the bolt connection lacks corresponding reinforcement mechanism, which makes the bolts easy to loosen, thus affecting the overall connection stability.
[0004] Therefore, a connection device for building water supply and drainage pipes is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a connection device for building water supply and drainage pipes.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A building water supply and drainage pipe connection device, comprising:
[0008] First pipeline, second pipeline;
[0009] The outer walls of the first pipe and the second pipe are respectively fixed with a first flange and a second flange, and the outer walls of the first flange and the second flange are respectively provided with a first connection hole and a second connection hole;
[0010] A threaded rod is provided in the first connecting hole and the second connecting hole. A limit plate is fixed at one end of the threaded rod, and a limit ring is threadedly connected to the outer wall of the threaded rod.
[0011] The outer wall of the second flange is provided with a slot, and an L-shaped fastener is engaged in the slot;
[0012] The L-shaped clip abuts against the limiting ring.
[0013] Preferably, one end of the limiting plate abuts against the first flange, and one end of the limiting ring abuts against the second flange.
[0014] Preferably, the outer wall of the second flange is fixed with a first connecting lug, the outer wall of the L-shaped clip is fixed with a second connecting lug, the outer wall of the second connecting lug is provided with a locking hole, the outer wall of the first connecting lug is provided with a movable hole, a fixing rod is movably disposed in the movable hole, one end of the fixing rod is fixed with a connecting plate, and the other end of the fixing rod is engaged in the locking hole.
[0015] Preferably, a spring is provided on the outer wall of the fixing rod, one end of the spring is fixed to the connecting plate, and the other end of the spring is fixed to the first connecting lug.
[0016] Preferably, a sealing groove is provided at one end of the second flange, and a sealing ring located inside the sealing groove is installed at one end of the first flange.
[0017] Preferably, a placement groove is provided at one end of the second flange, and a liquid sensor located inside the placement groove is installed at one end of the first flange.
[0018] Preferably, a connector is installed on the outer wall of the second pipe, a power supply is installed on the top of the connector, a controller is installed on the top of the power supply, and an alarm is installed on the top of the controller. The power supply is electrically connected to the liquid sensor, the controller, and the alarm, respectively. The controller is electrically connected to the alarm, and the liquid sensor is electrically connected to the controller.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] This utility model secures the L-shaped clip by engaging it into the slot. A spring then drives a fixing rod to move within the movable hole. Once one end of the fixing rod is engaged in the slot, the L-shaped clip is fixed. Because the L-shaped clip abuts against the limiting ring, it limits the movement of the limiting ring, preventing the threaded rod and limiting ring from loosening. This improves the connection stability of the first flange, the second flange, and the first and second pipes. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This utility model Figure 1 A magnified structural diagram of A in the middle;
[0023] Figure 3 This is a schematic diagram of the connection structure between the first pipe and the second pipe in this utility model;
[0024] Figure 4 This is a schematic diagram of the second flange structure in this utility model.
[0025] In the diagram: 1. First pipe; 2. First flange; 3. Second pipe; 4. Second flange; 5. First connecting hole; 6. Second connecting hole; 7. Threaded rod; 8. Limiting plate; 9. Limiting ring; 10. Sealing groove; 11. Sealing ring; 12. Slot; 13. L-shaped clip; 14. First connecting ear; 15. Second connecting ear; 16. Slot; 17. Movable hole; 18. Fixing rod; 19. Connecting plate; 20. Spring; 21. Placement slot; 22. Liquid sensor; 23. Connecting seat; 24. Power supply; 25. Controller; 26. Alarm. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0028] Example 1:
[0029] Please see Figure 1-4This utility model provides a technical solution: To achieve the above objectives, this utility model provides the following technical solution: A building water supply and drainage pipe connection device, comprising: a first pipe 1 and a second pipe 3; a first flange 2 and a second flange 4 are respectively fixed to the outer walls of the first pipe 1 and the second pipe 3, and a first connecting hole 5 and a second connecting hole 6 are respectively opened on the outer walls of the first flange 2 and the second flange 4; a threaded rod 7 is provided in the first connecting hole 5 and the second connecting hole 6, a limit plate 8 is fixed to one end of the threaded rod 7, and a limit ring 9 is threadedly connected to the outer wall of the threaded rod 7; a groove 12 is opened on the outer wall of the second flange 4, and an L-shaped clamp 13 is clamped in the groove 12; the L-shaped clamp 13 abuts against the limit ring 9, and one end of the limit plate 8 is connected to... The first flange 2 abuts against the second flange 4, and one end of the limiting ring 9 abuts against the second flange 4. The outer wall of the second flange 4 is fixed with a first connecting lug 14. The outer wall of the L-shaped clip 13 is fixed with a second connecting lug 15. The outer wall of the second connecting lug 15 is provided with a locking hole 16. The outer wall of the first connecting lug 14 is provided with a movable hole 17. A fixing rod 18 is movably arranged in the movable hole 17. One end of the fixing rod 18 is fixed with a connecting plate 19. The other end of the fixing rod 18 is locked inside the locking hole 16. A spring 20 is provided on the outer wall of the fixing rod 18. One end of the spring 20 is fixed with the connecting plate 19. The other end of the spring 20 is fixed with the first connecting lug 14. One end of the second flange 4 is provided with a sealing groove 10. One end of the first flange 2 is installed with a sealing ring 11 located inside the sealing groove 10.
[0030] Specifically, this utility model involves engaging the L-shaped clip 13 into the slot 12, and then, under the action of the spring 20, driving the fixing rod 18 to move within the movable hole 17. Once one end of the fixing rod 18 is engaged into the slot 16, the L-shaped clip 13 can be fixed. Since the L-shaped clip 13 abuts against the limiting ring 9, the limiting ring 9 will be limited under the action of the L-shaped clip 13, thereby preventing the threaded rod 7 and the limiting ring 9 from loosening, and thus improving the connection stability of the first flange 2, the second flange 4, and the first pipe 1 and the second pipe 3.
[0031] With the cooperation of sealing ring 11 and sealing groove 10, the sealing performance of the connection between first flange 2, second flange 4 and first pipe 1 and second pipe 3 can be improved, and leakage can be avoided.
[0032] Example 2:
[0033] Please see Figure 1 , 34. This utility model provides a technical solution: a building water supply and drainage pipe connection device, wherein a placement groove 21 is provided at one end of the second flange 4, a liquid sensor 22 is installed at one end of the first flange 2 inside the placement groove 21, a connecting seat 23 is installed on the outer wall of the second pipe 3, a power supply 24 is installed on the top of the connecting seat 23, a controller 25 is installed on the top of the power supply 24, an alarm 26 is installed on the top of the controller 25, the power supply 24 is electrically connected to the liquid sensor 22, the controller 25, and the alarm 26 respectively, the controller 25 is electrically connected to the alarm 26, and the liquid sensor 22 is electrically connected to the controller 25.
[0034] Specifically, by installing a liquid sensor 22, if the liquid sensor 22 detects liquid, it indicates that a leak has occurred at the connection between the first flange 2, the second flange 4, and the first pipe 1 and the second pipe 3. At this time, the liquid sensor 22 will work with the controller 25 to activate the alarm 26. The alarm 26 will issue an alarm to warn the staff that a leak may have occurred. On the one hand, timely sealing of the connection between the first flange 2, the second flange 4, and the first pipe 1 and the second pipe 3 helps to improve overall work efficiency, and on the other hand, it also avoids the waste of water resources.
[0035] Working principle:
[0036] When connecting the first pipe 1, the second pipe 3, and the first flange 2 and the second flange 4, the worker first abuts the first pipe 1, the second pipe 3, and the first flange 2 and the second flange 4, then inserts the threaded rod 7 into the first connecting hole 5 and the second connecting hole 6. Next, the worker uses a tool to thread the limiting ring 9 onto the outer wall of the threaded rod 7. After one end of the limiting plate 8 abuts against the first flange 2 and one end of the limiting ring 9 abuts against the second flange 4, the first pipe 1, the second pipe 3, and the first flange 2 and the second flange 4 can be connected and fixed. With the cooperation of the sealing ring 11 and the sealing groove 10, the sealing performance of the connection between the first flange 2, the second flange 4, and the first pipe 1 and the second pipe 3 can be improved, preventing leakage. The worker then engages the L-shaped clip 13 into the slot 12. Subsequently, under the action of the spring 20, the fixing rod 18 moves within the movable hole 17. After one end of the fixing rod 18 is engaged into the slot 16, the L-shaped clip can be secured. The L-shaped clamp 13 is fixed in place. Since the L-shaped clamp 13 abuts against the limiting ring 9, the limiting ring 9 is limited by the action of the L-shaped clamp 13, thereby preventing the threaded rod 7 and the limiting ring 9 from loosening. This improves the connection stability of the first flange 2, the second flange 4, and the first pipe 1 and the second pipe 3. A liquid sensor 22 is installed. If the liquid sensor 22 detects liquid, it indicates that there is a leak at the connection of the first flange 2, the second flange 4, and the first pipe 1 and the second pipe 3. At this time, the liquid sensor 22 will work with the controller 25 to activate the alarm 26. The alarm 26 will sound an alarm to warn the staff that a leak may have occurred. On the one hand, timely sealing of the connection of the first flange 2, the second flange 4, and the first pipe 1 and the second pipe 3 helps to improve the overall work efficiency. On the other hand, it also avoids the waste of water resources. It should be noted that the first pipe 1 can be used as a water supply pipe or a drainage pipe, and the second pipe 3 can be used as an external main water outlet pipe.
[0037] In the description of this utility model, it should be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plumbing connection device for building water and sewer pipes, characterized in that The utility model relates to a kind of liquid level control device, including: First pipeline (1), second pipeline (3); First flange plate (2) is fixed respectively with the outer wall of the first pipeline (1), second flange plate (4) is fixed respectively with the outer wall of the second pipeline (3), first connecting hole (5) is opened respectively with the outer wall of the first flange plate (2), second connecting hole (6) is opened respectively with the outer wall of the second flange plate (4); Threaded rod (7) is arranged in the first connecting hole (5), second connecting hole (6), one end of the threaded rod (7) is fixed with limit plate (8), the outer wall of the threaded rod (7) is threadedly connected with limit ring (9); The outer wall of the second flange plate (4) is provided with a clamping groove (12), and the clamping groove (12) is provided with an L-shaped clamping piece (13); The L-shaped clamping piece (13) is in abutment with the limit ring (9).
2. A plumbing coupling device for building water and sewer pipes according to claim 1, characterized in that, One end of the limit plate (8) is in abutment with the first flange plate (2), and one end of the limit ring (9) is in abutment with the second flange plate (4).
3. A plumbing coupling device for building water and sewer pipes according to claim 1, characterized in that, The outer wall of the second flange plate (4) is fixed with a first connecting lug (14), the outer wall of the L-shaped clamping piece (13) is fixed with a second connecting lug (15), the outer wall of the second connecting lug (15) is provided with a clamping hole (16), the outer wall of the first connecting lug (14) is provided with a movable hole (17), a fixing rod (18) is movably arranged in the movable hole (17), one end of the fixing rod (18) is fixed with a connecting plate (19), the other end of the fixing rod (18) is clamped in the clamping hole (16).
4. A plumbing coupling device for building water and sewer pipes according to claim 3, characterized in that The outer wall of the fixing rod (18) is provided with a spring (20), one end of the spring (20) is fixed with the connecting plate (19), the other end of the spring (20) is fixed with the first connecting lug (14).
5. A plumbing coupling device for building water and sewer pipes according to claim 1, characterized in that, One end of the second flange plate (4) is provided with a sealing groove (10), and the first flange plate (2) is provided with a sealing ring (11) located in the sealing groove (10).
6. A plumbing device according to claim 1, wherein One end of the second flange plate (4) is provided with a placing groove (21), and the first flange plate (2) is provided with a liquid sensor (22) located in the placing groove (21).
7. A plumbing coupling device for building water and sewer pipes according to claim 1, characterized in that, The outer wall of the second pipeline (3) is provided with a connecting seat (23), the top of the connecting seat (23) is provided with a power supply (24), the top of the power supply (24) is provided with a controller (25), the top of the controller (25) is provided with an alarm (26), the power supply (24) is electrically connected with the liquid sensor (22), the controller (25) and the alarm (26) respectively, the controller (25) is electrically connected with the alarm (26), and the liquid sensor (22) is electrically connected with the controller (25).
Citation Information
Patent Citations
Building water supply and drainage pipeline connecting device
CN221121336U