Leakage-proof device for water supply and drainage pipeline

Abstract

The utility model is suitable for the technical field of water supply and drainage pipelines, and provides a water supply and drainage pipeline leakage-proof device which comprises a flange pipe, a pressure relief pipe and a pressure relief pipe. The pressure relief set is arranged in the pressure relief pipe, the pressure relief set comprises a main plate sliding in the pressure relief pipe, a pressure relief piece rotationally connected to the main plate and pressure relief holes formed in the main plate and the pressure relief piece respectively, the positions of the two pressure relief holes coincide, the pressure relief piece is arranged at the output end of a driving part, and the driving part drives the pressure relief piece to rotate; the drainage pipe has the advantages that the buffering pressure relief function of the first echelon is achieved through the long rod and the main elastic piece, the flow dividing function can be achieved through the driving piece and the pressure relief piece, water in the flange pipe can be divided, the water pressure in the drainage pipe is reduced, and the problem that due to the fact that the water pressure in the pipeline is too large, the pipeline leaks or the connecting position is burst open is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage pipelines, in particular to a leakage prevention device for water supply and drainage pipelines. Background Art

[0002] Water supply and drainage generally refers to the urban water supply system and drainage system. The existing multiple water supply and drainage pipes are prone to leakage when connected, especially after blockage. Due to the increase in water pressure in the drainage pipes, leakage is likely to occur. If the water pressure in the drainage pipes is too high, it will also cause the pipes to crack and be damaged, affecting their use.

[0003] A Chinese patent with patent publication number CN221121317U discloses a water supply and drainage anti-leakage structure, including a connecting pipe for connecting adjacent water supply and drainage pipes, annular plug-in plates are integrally formed at both ends of the connecting pipe, and an annular plug-in groove is provided at the end of the two adjacent water supply and drainage pipes close to each other, which is plugged into and cooperates with the annular plug-in plate. An annular mounting groove is provided at the intersection between the inner wall of the water supply and drainage pipe and the end of the water supply and drainage pipe, and an annular sealing gasket is provided in the annular mounting groove to cooperate with the annular mounting groove. A retaining mechanism for enhancing the connection stability between the water supply and drainage pipe and the connecting pipe is commonly installed on the two adjacent water supply and drainage pipes; the above leakage structure cannot solve the problem of leakage caused by contact of the coach due to high pressure in the pipeline.

[0004] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0005] In response to the above-mentioned defects, the purpose of the present utility model is to provide a water supply and drainage pipe leakage prevention device, which can achieve segmented pressure relief. The first stage provides a buffer space to realize the pressure relief function. The second stage diverts the water in the flange pipe to reduce the water pressure inside the drainage pipe, thereby solving the problem of pipe leakage or connection rupture caused by excessive water pressure in the pipe.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a water supply and drainage pipe leakage prevention device, including: a flange pipe, on which a pressure relief pipe is provided; a pressure relief group arranged in the pressure relief pipe, the pressure relief group including a main board sliding in the pressure relief pipe, a pressure relief plate rotatably connected to the main board, and pressure relief holes respectively arranged on the main board and the pressure relief plate, the positions of the two pressure relief holes coincide, the pressure relief plate is arranged at the output end of the driving member, and the driving member drives the pressure relief plate to rotate.

[0007] According to the water supply and drainage pipe leakage prevention device of the present invention, a long rod is fixedly connected to the main board, a main elastic member is provided on the outer shell of the long rod, the long rod is slidably connected to the fixed block, and the fixed block is fixed to the pressure relief pipe.

[0008] According to the water supply and drainage pipe leakage prevention device of the present invention, an inner rod is provided on the main board, a pressure relief plate is rotatably connected to the inner rod, a sealing ring is provided between the pressure relief plate and the main board, an abutment is rotatably connected to the main board, and the abutment abuts against the pressure relief plate.

[0009] According to the water supply and drainage pipe leakage prevention device of the present invention, a rotating rod is fixedly connected to the pressure relief plate, the rotating rod is arranged in the sleeve, and a secondary elastic member is provided between the sleeve and the rotating rod, and the rotating rod is arranged at the output end of the driving member.

[0010] According to the water supply and drainage pipe leakage prevention device of the present invention, the driving member is configured as a fixing pin, one end of the fixing pin passes through a sleeve and is disposed in an arc groove, and the arc groove is disposed on the rotating rod.

[0011] According to the water supply and drainage pipe leakage prevention device of the present invention, a limiting rod is provided at the end of the sleeve, the limiting rod is slidably connected to the baffle, and the baffle is fixed to the pressure relief pipe.

[0012] The utility model provides a leakage prevention device for water supply and drainage pipes, comprising: a flange pipe, on which a pressure relief pipe is provided to realize a pressure relief and diversion function; a pressure relief group arranged in the pressure relief pipe, the pressure relief group comprising a main board sliding in the pressure relief pipe, a pressure relief plate rotatably connected to the main board, and pressure relief holes respectively arranged on the main board and the pressure relief plate, the positions of the two pressure relief holes coincide, and when the two pressure relief holes coincide, a diversion function can be realized, the pressure relief plate is arranged at the output end of the driving member, and the driving member drives the pressure relief plate to rotate; the beneficial effects of the utility model: the first-echelon buffering pressure relief function is realized by the long rod and the main elastic member, the diversion function can be realized by the driving member and the pressure relief plate, the water in the flange pipe can be diverted, the water pressure inside the drainage pipe is reduced, and the problem of pipe leakage or connection being washed away caused by excessive water pressure in the pipe is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This utility model Figure 1 A schematic diagram of the partially enlarged structure of the middle part;

[0015] Figure 3 This is a schematic structural diagram of the pressure relief group of the utility model;

[0016] Figure 4 This is a schematic diagram of the flange pipe structure of the utility model;

[0017] In the figure, 1-flange pipe, 2-pressure relief pipe, 21-fixed block, 22-baffle, 3-main board, 31-sealing ring, 32-abutment, 33-inner rod, 34-long rod, 35-main elastic part, 4-pressure relief plate, 41-rotating rod, 42-arc groove, 5-pressure relief hole, 6-secondary elastic part, 7-sleeve, 71-limiting rod, 8-fixing pin. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] See also Figures 1 to 4 The utility model provides a leakage-proof device for water supply and drainage pipes, which comprises: a flange pipe 1, a pressure relief pipe 2 being provided on the flange pipe 1; a pressure relief group arranged in the pressure relief pipe 2, the pressure relief group comprising a main board 3 sliding in the pressure relief pipe 2, a pressure relief plate 4 rotatably connected to the main board 3, and pressure relief holes 5 respectively arranged on the main board 3 and the pressure relief plate 4, the positions of the two pressure relief holes 5 coincide, and the pressure relief plate 4 is arranged at the output end of the driving member, and the driving member drives the pressure relief plate 4 to rotate; the beneficial effects of the utility model: the first-tier buffering pressure relief function is realized by the long rod 34 and the main elastic member 35, and the diversion function can be realized by the driving member and the pressure relief plate 4, which can divert the water in the flange pipe 1, reduce the water pressure inside the drain pipe, and solve the problem of pipe leakage or connection bursting caused by excessive water pressure in the pipe.

[0020] See also Figures 1 to 4 Preferably, a long rod 34 is fixed to the main board 3 of the utility model, and a main elastic member 35 is provided on the outer cover of the long rod 34. The long rod 34 is slidably connected to the fixed block 21, and the fixed block 21 is fixed to the pressure relief pipe 2 to ensure stable movement of the supporting main rod.

[0021] See also Figures 1 to 4 In addition, an inner rod 33 is provided on the main board 3 of the present invention, and a pressure relief plate 4 is rotatably connected to the inner rod 33. A sealing ring 31 is provided between the pressure relief plate 4 and the main board 3. An abutment 32 is rotatably connected to the main board 3, and the abutment 32 abuts against the pressure relief plate 4. The sealing ring 31 has a sealing effect. When the two pressure relief holes 5 do not overlap, the main board 3 can ensure that the liquid in the flange pipe 1 does not flow in the pressure relief pipe 2, thereby avoiding pressure relief.

[0022] See also Figures 1 to 4Furthermore, a rotating rod 41 is fixed to the pressure relief plate 4 of the present invention, and the rotating rod 41 is arranged in the sleeve 7, and a secondary elastic member 6 is provided between the sleeve 7 and the rotating rod 41. The rotating rod 41 is arranged at the output end of the driving member. When the moving distance of the rotating rod 41 reaches the maximum value, the pressure relief holes 5 on the main board 3 and the pressure relief plate 4 completely overlap.

[0023] See also Figures 1 to 4 , better, the driving member of the present invention is set as a fixing pin 8, one end of the fixing pin 8 passes through the sleeve 7 and is arranged in the arc groove 42, the arc groove 42 is provided on the rotating rod 41, and the arc groove 42 is set in a spiral shape to ensure that the fixing pin 8 can drive the rotating rod 41 to rotate when sliding in the arc groove 42; a limiting rod 71 is provided at the end of the sleeve 7, and the limiting rod 71 is slidably connected to the baffle 22, and the baffle 22 is fixed to the pressure relief pipe 2, and the limiting rod 71 is set in a square shape to ensure that the limiting rod 71 can only slide axially relative to the baffle 22 and cannot rotate radially, thereby ensuring that the sleeve 7 does not rotate when the rotating rod 41 rotates, and the baffle 22 is provided with a circular hole for accommodating the long rod 34 to pass through, so as to avoid interference between the baffle 22 and the long rod 34.

[0024] Working principle: Under normal pressure state, the main elastic member 35 and the secondary elastic member 6 are both in a naturally stretched state, and the top of the sleeve 7 is set at a distance from the baffle 22. When the water pressure in the flange pipe 1 is too large, the main board 3 is squeezed to move toward the baffle 22, and the main elastic member 35 is forced to shrink. At this time, the movement of the main board 3 provides a buffer space, which has a certain pressure relief effect; when the water pressure in the flange pipe 1 reaches the second stage, the main board 3 continues to move, the sleeve 7 abuts against the baffle 22, and the rotating rod 41 continues to move in the sleeve 7. The secondary elastic member 6 is compressed, and the fixing pin 8 slides in the arc groove 42, driving the rotating rod 41 to rotate, thereby driving the pressure relief hole 5 on the pressure relief plate 4 to coincide with the pressure relief hole 5 on the main board 3, realizing the diversion and pressure relief functions. After the water pressure is reduced, the secondary elastic member 6 and the main elastic member 35 can drive the pressure relief plate 4 and the main board 3 to reset.

[0025] In summary, the utility model provides a leakage prevention device for water supply and drainage pipes, comprising: a flange pipe, on which a pressure relief pipe is provided; a pressure relief group arranged in the pressure relief pipe, the pressure relief group comprising a main board sliding in the pressure relief pipe, a pressure relief plate rotatably connected to the main board, and pressure relief holes respectively arranged on the main board and the pressure relief plate, the positions of the two pressure relief holes coincide, the pressure relief plate is arranged at the output end of the driving member, and the driving member drives the pressure relief plate to rotate; the beneficial effects of the utility model: the buffering pressure relief function of the first echelon is realized by the long rod and the main elastic member, the diversion function can be realized by the driving member and the pressure relief plate, the water in the flange pipe can be diverted, the water pressure inside the drainage pipe is reduced, and the problem of pipe leakage or connection being washed away caused by excessive water pressure in the pipe is solved.

[0026] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A water supply and drainage pipeline leakage prevention device, characterized in that: include: A flange pipe, wherein the flange pipe is provided with a pressure relief pipe; A pressure relief group is arranged in the pressure relief pipe, and the pressure relief group includes a main board sliding in the pressure relief pipe, a pressure relief plate rotatably connected to the main board, and pressure relief holes respectively arranged on the main board and the pressure relief plate, and the positions of the two pressure relief holes coincide. The pressure relief plate is arranged at the output end of the driving member, and the driving member drives the pressure relief plate to rotate.

2. The water supply and drainage pipe leakage prevention device according to claim 1, characterized in that: A long rod is fixedly connected to the main board, a main elastic member is provided on the outer shell of the long rod, the long rod is slidably connected to the fixed block, and the fixed block is fixedly connected to the pressure relief pipe.

3. The water supply and drainage pipe leakage prevention device according to claim 1, characterized in that: An inner rod is provided on the main board, a pressure relief plate is rotatably connected to the inner rod, a sealing ring is provided between the pressure relief plate and the main board, an abutment is rotatably connected to the main board, and the abutment abuts against the pressure relief plate.

4. The water supply and drainage pipe leakage prevention device according to claim 3, characterized in that: A rotating rod is fixedly connected to the pressure relief plate. The rotating rod is arranged in the sleeve, and a secondary elastic member is provided between the sleeve and the rotating rod. The rotating rod is arranged at the output end of the driving member.

5. The water supply and drainage pipe leakage prevention device according to claim 4, characterized in that: The driving member is configured as a fixing pin, one end of which passes through a sleeve and is arranged in an arc groove, and the arc groove is arranged on the rotating rod.

6. The water supply and drainage pipe leakage prevention device according to claim 5, characterized in that: A limiting rod is provided at the end of the sleeve. The limiting rod is slidably connected to the baffle, and the baffle is fixed to the pressure relief pipe.

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