Pipeline connecting device for water supply and drainage

Abstract

The utility model provides a water supply and drainage pipeline connecting device which comprises a water distribution pipe, a plurality of pipe joints are installed on the outer surface of the water distribution pipe at equal intervals, first flanges are installed at the ends, away from the water distribution pipe, of the pipe joints, and valves are arranged on the sides, away from the pipe joints, of the first flanges. A first flange is installed on the liquid inlet of the valve, a second flange is installed on the liquid outlet of the valve, two semicircular arc-shaped rings are installed between the first flange and the second flanges, screws are installed in the middles of the arc-shaped side faces of the two arc-shaped rings, and a limiting plate is arranged on the side, away from the pipe connector, of the water distribution pipe. The screw rod penetrates through the limiting plate and is in threaded connection with a nut, the pipe joint is sleeved with a semicircular sleeve which is connected with the pipe joint, one end of the semicircular sleeve is attached to the water distribution pipe, the screw rod is sleeved with a connecting plate, and the screw rod penetrates through the connecting plate.

Description

Technical Field

[0001] This utility model is a pipe connection device for water supply and drainage, belonging to the field of water supply and drainage. Background Technology

[0002] In water supply and drainage systems, pipe connection devices are crucial components for ensuring smooth and safe water flow. Often, a main water supply pipe is divided into multiple branch pipes. This requires installing a distribution pipe with multiple fittings between the main supply pipe and the branch pipes. The distribution pipe has the same diameter as the main supply pipe, while the branch pipes have smaller diameters. Therefore, when not all branch pipes are open, the water pressure flowing into them increases, causing the welded joints between the fittings and the distribution pipe to experience significant reaction forces. This can easily lead to weld breakage at the joints. Therefore, a pipe connection device for water supply and drainage systems is needed to prevent weld breakage at the joints. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pipe connection device for water supply and drainage to solve the problems mentioned in the background art. This utility model prevents the weld joint between the pipe joint and the water distribution pipe from opening.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a water supply and drainage pipe connection device, comprising a water distribution pipe, one end of which is closed, and multiple pipe joints evenly spaced on the outer surface of the water distribution pipe. A first flange is installed at the end of each pipe joint away from the water distribution pipe, and a valve is provided on the side of the first flange away from the pipe joint. A second flange is installed on both the inlet and outlet of the valve. The second flange on the inlet of the valve is connected to the first flange by multiple sets of bolts. Two semi-circular arc-shaped rings are installed between the first and second flanges. A screw is installed at the center of the arc-shaped side of each of the two arc-shaped rings. The screw is arranged along the length of the pipe joint. A limiting plate is provided on the side of the water distribution pipe away from the pipe joint. The screw passes through the limiting plate and is threaded with a nut. Interconnected semi-circular sleeves are fitted on the pipe joints, one end of which is in contact with the water distribution pipe. A connecting plate is fitted on the screw, and the screw passes through the connecting plate.

[0005] Furthermore, a circular hole is provided on one side of the connecting plate away from the semi-circular sleeve, and the screw passes through the circular hole.

[0006] Furthermore, both ends of the limiting plate are provided with through holes, the end of the screw away from the arc-shaped ring passes through the through hole, and the nut is set on the side of the limiting plate away from the water distribution pipe.

[0007] Furthermore, a semi-circular retainer is installed at the center of the side of the limiting plate facing the water distribution pipe, and the retainer is engaged with the water distribution pipe.

[0008] Furthermore, the side of the limiting plate facing the sleeve is connected and fixed with two symmetrically arranged stiffening plates, and the end of the stiffening plate away from the limiting plate is connected and fixed to the sleeve.

[0009] Furthermore, an ear plate is fixedly connected to the middle of the arc-shaped side of the arc ring, and a threaded sleeve is installed on one side of the ear plate. One end of the screw is threadedly connected to the threaded sleeve.

[0010] Furthermore, sealing rings are provided on both sides of the arc-shaped ring, and the two sealing rings respectively contact the corresponding first flange and second flange.

[0011] Furthermore, the open end of the water distribution pipe is fitted with a third flange that is fixed to the water distribution pipe, and the diameter of the water distribution pipe is larger than the diameter of the pipe joint.

[0012] Furthermore, two connecting ears are fixedly connected to the arc-shaped surface of the semicircular sleeve, and the connecting ear on one semicircular sleeve is connected to the corresponding connecting ear on the other semicircular sleeve by bolts.

[0013] The beneficial effects of this utility model are:

[0014] 1. When the arc ring is installed between the first flange and the second flange, and the first flange and the second flange are connected by bolts, the arc ring is restricted between the first flange and the second flange. There is no need to use other bolts to restrict the position of the arc ring, thus reducing the number of bolts used.

[0015] 2. Install two interconnected semi-circular sleeves on the pipe joint, and make the screw pass through the connecting plate and the limiting plate. Connect one end of the screw to the arc ring, and screw the nut on the other end of the screw. This completes the restriction of the relative position between the limiting plate and the water distribution pipe. At this time, the reaction force caused by the narrowing of the water flow channel on the welded part of the pipe joint and the water distribution pipe is dispersed by the structure formed by the arc ring, semi-circular sleeve, screw and limiting plate, etc., to prevent the welded part of the pipe joint and the water distribution pipe from opening. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a water supply and drainage pipe connection device according to the present invention;

[0018] Figure 2 This is another perspective view of a pipe connection device for water supply and drainage according to the present invention;

[0019] Figure 3 This is an assembly diagram of the arc ring, screw, limiting plate and semi-circular sleeve in a water supply and drainage pipe connection device of this utility model;

[0020] Figure 4 This is an exploded view of the arc-shaped ring, semi-circular sleeve, and limiting plate in a water supply and drainage pipe connection device of this utility model.

[0021] In the diagram: 1-Water distribution pipe, 2-Pipe fitting, 3-First flange, 4-Third flange, 5-Valve, 6-Second flange, 7-Connecting plate, 8-Semi-circular sleeve, 9-Screw, 10-Nut, 11-Limiting plate, 12-Firming plate, 13-Flange, 14-Sealing ring, 15-Connecting ear, 16-Arc ring, 17-Threaded sleeve, 18-Ear plate, 19-Round hole, 20-Through hole. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a water supply and drainage pipe connection device, including a water distribution pipe 1, one end of which is closed, and a third flange 4 fixedly connected to the open end of the water distribution pipe 1. Multiple pipe joints 2 are equidistantly installed on the outer surface of the water distribution pipe 1, wherein the diameter of the water distribution pipe 1 is larger than the diameter of the pipe joints 2. A first flange 3 is installed at the end of the pipe joint 2 away from the water distribution pipe 1. A valve 5 is provided on the side of the first flange 3 away from the pipe joint 2. A second flange 6 is installed on both the inlet and outlet of the valve 5, so that the second flange 6 on the inlet of the valve 5 is connected to the first flange 3 by multiple sets of bolts, completing the assembly of the valve 5 and the water distribution pipe 1. By controlling the opening and closing of the valve 5 on different pipe joints 2, the flow of water in the corresponding branch pipes can be easily controlled.

[0024] See Figures 1-4Two semi-circular arc-shaped rings 16 are installed between the first flange 3 and the second flange 6. A lug plate 18 is fixed to the middle of the arc-shaped side of the arc-shaped ring 16. A threaded sleeve 17 is installed on one side of the lug plate 18, so that one end of the screw 9 arranged along the length direction of the pipe joint 2 is threaded into the threaded sleeve 17, thus completing the assembly of the screw 9 and the arc-shaped ring 16. Both sides of the arc-shaped ring 16 are provided with sealing rings 14. After the first flange 3 and the second flange 6 are assembled, the two sealing rings 14 contact the corresponding first flange 3 and second flange 6 respectively to improve the sealing performance. When the arc-shaped ring 16 is installed between the first flange 3 and the second flange 6 and the first flange 3 and the second flange 6 are connected by bolts, the arc-shaped ring 16 is restricted between the first flange 3 and the second flange 6, and there is no need to use other bolts to restrict the position of the arc-shaped ring 16, thus reducing the number of bolts used.

[0025] See Figures 1-4 A limiting plate 11 is provided on the side of the water distribution pipe 1 away from the pipe connector 2. A screw 9 passes through the limiting plate 11 and is threaded with a nut 10. Both ends of the limiting plate 11 have through holes 20. The end of the screw 9 away from the arc-shaped ring 16 passes through the through hole 20. The nut 10 is located on the side of the limiting plate 11 away from the water distribution pipe 1. Interconnected semi-circular sleeves 8 are fitted on the pipe connector 2. One end of the semi-circular sleeve 8 is in contact with the water distribution pipe 1. Two connecting ears 15 are fixedly connected to the arc-shaped surface of the semi-circular sleeve 8. The connecting ears 15 on one semi-circular sleeve 8 are connected to the corresponding connecting ears 15 on the other semi-circular sleeve 8 by bolts, completing the connection between the two semi-circular sleeves 8. The screw 9 is fitted with... A connecting plate 7 is provided, with a circular hole 19 on one side of the connecting plate 7 away from the semi-circular sleeve 8. A screw 9 passes through the circular hole 19. Two interconnected semi-circular sleeves 8 are installed on the pipe joint 2, and the screw 9 passes through the connecting plate 7 and the limiting plate 11. One end of the screw 9 is connected to the arc ring 16, and a nut 10 is screwed on the other end of the screw 9, thereby limiting the relative position of the limiting plate 11 and the water distribution pipe 1. At this time, the reaction force caused by the narrowing of the water flow channel on the welded part of the pipe joint 2 and the water distribution pipe 1 is dispersed by the structure formed by the arc ring 16, the semi-circular sleeve 8, the screw 9 and the limiting plate 11, thus preventing the weld from breaking at the welded part of the pipe joint 2 and the water distribution pipe 1.

[0026] See Figures 1-4 A semi-circular retaining sleeve 13 is installed in the middle of the side of the limiting plate 11 facing the water distribution pipe 1. Two symmetrically arranged stiffening plates 12 are connected and fixed to the side of the limiting plate 11 facing the retaining sleeve 13. The end of the stiffening plate 12 away from the limiting plate 11 is connected and fixed to the retaining sleeve 13. The stiffening plate 12 increases the connection range between the retaining sleeve 13 and the limiting plate 11, so that the retaining sleeve 13 is locked on the water distribution pipe 1, thereby increasing the contact range between the limiting plate 11 and the water distribution pipe 1.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plumbing connection device for water supply and drainage, comprising a water distribution pipe (1), characterized in that: The water distribution pipe (1) is closed at one end, a plurality of pipe joints (2) are equidistantly arranged on the outer surface of the water distribution pipe (1), a first flange (3) is arranged at the end of the pipe joint (2) away from the water distribution pipe (1), a valve (5) is arranged on the side of the first flange (3) away from the pipe joint (2), a second flange (6) is arranged on the liquid inlet of the valve (5) and the liquid outlet of the valve (5), the second flange (6) on the liquid inlet of the valve (5) is connected to the first flange (3) through a plurality of bolts, two semicircular arc rings (16) are arranged between the first flange (3) and the second flange (6), a screw rod (9) is arranged at the middle position of the arc side of each of the two arc rings (16), the screw rod (9) is arranged along the length direction of the pipe joint (2), a limiting plate (11) is arranged on the side of the water distribution pipe (1) away from the pipe joint (2), the screw rod (9) penetrates the limiting plate (11) and is threadedly connected with a nut (10), a semicircular sleeve (8) is arranged on the pipe joint (2) and connected to each other, one end of the semicircular sleeve (8) is attached to the water distribution pipe (1), a connecting plate (7) is arranged on the screw rod (9), and the screw rod (9) penetrates the connecting plate (7).

2. The plumbing coupling device of claim 1, wherein: The connecting plate (7) is provided with a circular hole (19) on one side away from the semicircular sleeve (8), and the screw rod (9) penetrates the circular hole (19).

3. The plumbing coupling according to Claim 1, wherein: Both ends of the limiting plate (11) are provided with through holes (20), one end of the screw rod (9) away from the arc ring (16) penetrates the through hole (20), and the nut (10) is arranged on the side of the limiting plate (11) away from the water distribution pipe (1).

4. The plumbing coupling according to Claim 3, wherein: The middle position of the side of the limiting plate (11) facing the water distribution pipe (1) is provided with a semicircular clamping sleeve (13), and the clamping sleeve (13) is clamped on the water distribution pipe (1).

5. The plumbing coupling according to Claim 4, wherein: The side of the limiting plate (11) facing the clamping sleeve (13) is fixedly connected with two symmetrically arranged rib plates (12), one end of the rib plate (12) away from the limiting plate (11) is fixedly connected with the clamping sleeve (13).

6. The plumbing coupling according to Claim 1, wherein: The arc ring (16) is fixedly connected with an ear plate (18) at the middle position of the arc side, a threaded sleeve (17) is arranged on one side of the ear plate (18), and one end of the screw rod (9) is threadedly connected in the threaded sleeve (17).

7. The plumbing coupling according to Claim 1, wherein: Both sides of the arc ring (16) are provided with sealing rings (14), and the two sealing rings (14) are respectively in contact with the corresponding first flange (3) and second flange (6).

8. The plumbing coupling according to Claim 1, wherein: The opening end of the water distribution pipe (1) is provided with a third flange (4) connected with the water distribution pipe (1), and the diameter of the water distribution pipe (1) is greater than the diameter of the pipe joint (2).

9. The plumbing coupling according to Claim 1, wherein: The semicircular sleeve (8) is fixedly connected with two connecting ears (15) on the arc surface, and the connecting ears (15) on one semicircular sleeve (8) are connected with the corresponding connecting ears (15) on the other semicircular sleeve (8) through bolts.

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