House building drainage pipeline

Abstract

The utility model discloses a house building drainage pipeline, which belongs to the technical field of drainage pipelines, and comprises a drainage main pipe, the side end of the drainage main pipe is communicated with a mounting branch pipe, and the port of the mounting branch pipe is provided with a drainage branch pipe; according to the utility model, the valve core is arranged in the drainage branch pipe of each household, when sewage is discharged, the sewage flows to the valve core through the drainage branch pipe, the valve plate at the bottom of the valve core is automatically opened due to gravity, and the valve plate rotates clockwise to drive the toothed plate to move, so that the spring is contracted, and the sewage continues to flow into the drainage main pipe to be discharged uniformly; after sewage is discharged, the valve plate is automatically closed through the springback mechanism, the area of the valve plate is larger than that of the opening of the side, close to the installation branch pipe, of the valve element, the opening part of the position of the valve element can be completely covered, the purpose of preventing sewage from flowing back into a room through the drainage branch pipe can be achieved, and the overall using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, and more particularly to a drainage pipe for a building. Background Art

[0002] As the name suggests, drainage pipes are pipes used for drainage, generally discharging domestic sewage and water accumulated on roofs. They refer to a system composed of pipes and their ancillary facilities that collect and discharge sewage, wastewater and rainwater. With the changes in today's security situation and people's changes in their concept of residential safety, as well as the continuous emergence of a large number of high-end residential houses with complete supporting facilities and beautiful environment, the wastewater in the house needs to be discharged through drainage pipes during the construction of high-end residential houses.

[0003] Current house building drainage pipes, such as the "A High-end Residential House Drainage Pipe" proposed in patent number 202222515160.2, include a pipe body, the interior of which is slidably connected to an annular scraper via a sliding assembly, and the interior of the annular scraper is snap-connected to a storage frame via a buckle, and the interior of the storage frame is snap-connected to an activated carbon filter. This high-end residential house drainage pipe filters and purifies sewage through an activated carbon filter to prevent discharge and environmental pollution. Long-term use of the activated carbon filter to absorb and filter impurities will cause blockage, so it needs to be replaced regularly. The limit rod is rotated and stretched so that the limit rod is stressed and squeezes the return spring. The return spring is stressed and drives the telescopic rod to contract and disengage from the limit slot. Then, the fixed plate is manually flipped to drive the limit rod to flip, so that the limit rod is quickly withdrawn, disengaging the storage frame from the slot of the annular scraper, allowing the activated carbon filter to be quickly disassembled and replaced, avoiding long-term clogging that affects the filtering performance.

[0004] The existing drainage pipes of residential buildings are equipped with filtering structures and the filters are regularly disassembled and cleaned. Although this can prevent the possibility of pipe blockage for a period of time to a certain extent, in actual use, as the pipes are used, small particles of stains in domestic sewage will gradually adhere to the inner wall of the pipes, forming silt, which will still cause pipe blockage. Residential sewage is discharged into the main pipe through the branch pipe. After the main pipe is blocked, the sewage discharged by the upper residents will flow into the room from the branch pipe of the lower residents. The existing drainage pipes cannot prevent sewage from flowing back into the room, which affects the use effect to a certain extent. Therefore, there is an urgent need to improve the technology of the drainage pipe structure of residential buildings to improve this equipment. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the present invention is to provide a drainage pipe for a building. When the drainage pipe for a building is used, a valve core is set in the drainage branch pipe of each household. When discharging sewage, the sewage flows to the valve core through the drainage branch pipe, and the valve plate at the bottom of the valve core automatically opens due to gravity, and the sewage continues to flow into the drainage main pipe for unified discharge. After the sewage is discharged, the valve plate automatically closes through the rebound mechanism, thereby preventing the sewage from flowing back into the room through the drainage branch pipe, thereby improving the overall use effect.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] A drainage pipe for a building comprises a drainage main pipe, a side end of the drainage main pipe is connected to an installation branch pipe, and a drainage branch pipe is provided at the end of the installation branch pipe, wherein:

[0010] The adjacent ends of the installation branch pipe and the drainage branch pipe are connected with flanges, and the installation branch pipe and the drainage branch pipe are limitedly installed through the flanges. A valve core is provided inside the drainage branch pipe, and the valve core is limited and fixed at the drainage branch pipe by a sealing installation mechanism;

[0011] A valve hole is provided inside the valve core, a connecting frame is fixed to one end of the valve core close to the mounting branch pipe, the outer end of the connecting frame is rotatably connected to a valve plate, the valve plate is located at an opening on one side of the valve core close to the mounting branch pipe, the area of ​​the valve plate is larger than the area of ​​the opening on one side of the valve core close to the mounting branch pipe, and the side end of the valve core automatically closes the valve plate through a rebound mechanism.

[0012] Preferably, the outer end of the drainage branch pipe is threadedly connected with a screw, the screw passes through the side wall of the drainage branch pipe and forms a threaded connection with the valve core, and a sealing ring is provided at the contact point between the valve core and the drainage branch pipe.

[0013] Preferably, the cross section of the valve hole is funnel-shaped, and the area of ​​the opening at one end of the valve hole away from the mounting branch pipe is larger than the area of ​​the opening at one end of the valve hole close to the mounting branch pipe.

[0014] Preferably, a spring groove is provided at one end of the valve core close to the connecting frame, a spring is fixedly connected to the inner wall of the spring groove, the other end of the spring is fixedly connected to a tooth plate, the end of the valve plate close to the tooth plate is arc-shaped, and the outer end of the arc-shaped valve plate is fixedly connected to teeth that engage with the tooth plate.

[0015] Preferably, the spring is made of stainless steel, and a wear-resistant layer is provided on the outer end of the spring.

[0016] Preferably, the cross-sections of the sealing ring and the drainage branch pipe are both circular, and the centers of the cross-sections of the drainage branch pipe, the valve core and the sealing ring coincide with each other.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The utility model provides a valve core in each household's drainage branch pipe. When sewage is discharged, the sewage flows to the valve core through the drainage branch pipe. The valve plate at the bottom of the valve core automatically opens due to gravity. The valve plate rotates clockwise to drive the tooth plate to move, thereby causing the spring to contract. The sewage continues to flow into the drainage main pipe for unified discharge. After the sewage is discharged, the valve plate automatically closes through the rebound mechanism. The area of ​​the valve plate is larger than the area of ​​the opening on the side of the valve core close to the installation branch pipe, which can completely cover the opening part of the valve core at this location, thereby achieving the purpose of preventing sewage from flowing back into the room through the drainage branch pipe, thereby improving the overall use effect.

[0020] (2) According to the present invention, the valve core can be placed in the drainage branch pipe first, and the valve core can be limited and installed in the drainage branch pipe by screws, and a sealing ring is provided at the contact point between the valve core and the drainage branch pipe, which can play a sealing role and prevent part of the sewage from flowing directly into the drainage branch pipe without passing through the valve core. When the sewage is discharged, the compressed spring drives the tooth plate to extend through the restoring elastic force, and the tooth plate can drive the valve plate to rotate back to its original position through the meshing connection formed by the teeth on the outer end of the valve plate, so that when the drainage pipe is blocked, the sewage will not flow back into the room through the drainage branch pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 3 For this utility model Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0024] 1. Drain main pipe; 2. Mounting branch pipe; 3. Drain branch pipe; 4. Flange; 5. Valve core; 6. Screws; 7. Valve hole; 8. Connecting frame; 9. Valve plate; 10. Spring groove; 11. Spring; 12. Tooth plate; 13. Gear; 14. Sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Example:

[0027] See also Figure 1-3 A drainage pipe for a building comprises a drainage main pipe 1, a side end of the drainage main pipe 1 is connected to an installation branch pipe 2, and a drainage branch pipe 3 is provided at the end of the installation branch pipe 2, wherein,

[0028] The adjacent ends of the installation branch pipe 2 and the drainage branch pipe 3 are connected with flanges 4, and the installation branch pipe 2 and the drainage branch pipe 3 are limited and installed by the flanges. A valve core 5 is provided inside the drainage branch pipe 3, and the valve core 5 is limited and fixed by a sealing installation mechanism at the drainage branch pipe 3;

[0029] A valve hole 7 is opened inside the valve core 5, and a connecting frame 8 is fixed to the end of the valve core 5 close to the mounting branch pipe 2. The outer end of the connecting frame 8 is rotatably connected to a valve plate 9. The valve plate 9 is located at the opening on one side of the valve core 5 close to the mounting branch pipe 2. The area of ​​the valve plate 9 is larger than the area of ​​the opening on the side of the valve core 5 close to the mounting branch pipe 2. The side end of the valve core 5 is automatically closed by a rebound mechanism.

[0030] By arranging a valve core 5 in the drainage branch pipe 3 of each household, when discharging sewage, the sewage flows to the valve core 5 through the drainage branch pipe 3, and the valve plate 9 at the bottom of the valve core 5 automatically opens due to gravity. The valve plate 9 rotates clockwise to drive the tooth plate 12 to move, thereby causing the spring 11 to contract, and the sewage continues to flow into the drainage main pipe 1 for unified discharge. After the sewage is discharged, the valve plate 9 automatically closes through the rebound mechanism, and the area of ​​the valve plate 9 is larger than the area of ​​the opening on the side of the valve core 5 close to the installation branch pipe 2, which can completely cover the opening part of the valve core 5 at this point, thereby achieving the purpose of preventing sewage from flowing back into the room through the drainage branch pipe 3, thereby improving the overall use effect.

[0031] See also Figure 1-2The outer end of the drainage branch pipe 3 is threadedly connected with a screw 6, which passes through the side wall of the drainage branch pipe 3 and forms a threaded connection with the valve core 5. A sealing ring 14 is provided at the contact point between the valve core 5 and the drainage branch pipe 3. The valve core 5 can be placed in the drainage branch pipe 3 first, and the valve core 5 is limited and installed in the drainage branch pipe 3 by the screw 6. A sealing ring 14 is provided at the contact point between the valve core 5 and the drainage branch pipe 3, which can play a sealing role to prevent some sewage from flowing directly in the drainage branch pipe 3 without passing through the valve core 5. The cross-section of the valve hole 7 is funnel-shaped, and the area of ​​the opening at the end of the valve hole 7 away from the installation branch pipe 2 is larger than the area of ​​the opening at the end of the valve hole 7 close to the installation branch pipe 2.

[0032] See also Figure 3 A spring groove 10 is provided at one end of the valve core 5 close to the connecting frame 8, a spring 11 is fixedly connected to the inner wall of the spring groove 10, and the other end of the spring 11 is fixedly connected to a tooth plate 12. The end of the valve plate 9 close to the tooth plate 12 is arc-shaped, and the outer end of the arc-shaped valve plate 9 is fixedly connected to a meshing tooth 13 that engages with the tooth plate 12.

[0033] See also Figure 2-3 The material of the spring 11 is stainless steel, and a wear-resistant layer is provided at the outer end of the spring 11. By setting the material of the spring 11 to stainless steel, the spring 11 can be prevented from rusting due to long-term use. By providing the wear-resistant layer, the wear resistance of the spring 11 is improved and the service life of the spring 11 is extended. The cross-sections of the sealing ring 14 and the drainage branch pipe 3 are both circular, and the centers of the cross-sections of the drainage branch pipe 3, the valve core 5 and the sealing ring 14 coincide with each other.

[0034] Working principle: When using this kind of drainage pipe for a building, first, place the valve core 5 into the drainage branch pipe 3, and use the screw 6 to limit the valve core 5 and install it in the drainage branch pipe 3. A sealing ring 14 is provided at the contact point between the valve core 5 and the drainage branch pipe 3, which can play a sealing role and prevent some sewage from flowing directly into the drainage branch pipe 3 without passing through the valve core 5.

[0035] When discharging sewage, sewage flows to the valve core 5 through the drainage branch pipe 3. The valve plate 9 at the bottom of the valve core 5 is automatically opened due to gravity. The valve plate 9 rotates clockwise to drive the tooth plate 12 to move, thereby contracting the spring 11, and the sewage continues to flow into the drainage main pipe 1 for unified discharge. After the sewage is discharged, the compressed spring 11 drives the tooth plate 12 to extend through the restoring elastic force. The tooth plate 12 can drive the valve plate 9 to rotate back to its original position for closing through the meshing connection formed with the teeth 13 at the outer end of the valve plate 9. The area of ​​the valve plate 9 is larger than the area of ​​the opening on the side of the valve core 5 close to the installation branch pipe 2, and can completely cover the opening part of the valve core 5 at this point, thereby preventing the sewage from flowing back into the room through the drainage branch pipe 3, thereby improving the overall use effect.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage pipe for a building, comprising a drainage main (1), characterized in that: The side end of the drainage main pipe (1) is connected to a mounting branch pipe (2), and a drainage branch pipe (3) is provided at the end of the mounting branch pipe (2), wherein: The adjacent ends of the installation branch pipe (2) and the drainage branch pipe (3) are both connected with flanges (4), and the installation branch pipe (2) and the drainage branch pipe (3) are installed for position limiting by means of the flanges. A valve core (5) is provided inside the drainage branch pipe (3), and the valve core (5) is fixed for position limiting by means of a sealing installation mechanism at the drainage branch pipe (3); A valve hole (7) is provided inside the valve core (5), a connecting frame (8) is fixed to one end of the valve core (5) close to the mounting branch pipe (2), and a valve plate (9) is rotatably connected to the outer end of the connecting frame (8), and the valve plate (9) is located at an opening on one side of the valve core (5) close to the mounting branch pipe (2). The area of ​​the valve plate (9) is larger than the area of ​​the opening on one side of the valve core (5) close to the mounting branch pipe (2). The side end of the valve core (5) automatically closes the valve plate (9) through a rebound mechanism. The rebound mechanism The valve core (5) comprises a spring groove (10), a spring (11), a tooth plate (12) and a tooth (13), wherein the valve core (5) is provided with a spring groove (10) at one end close to the connecting frame (8), a spring (11) is fixedly connected to the inner wall of the spring groove (10), and the other end of the spring (11) is fixedly connected to the tooth plate (12), and the end of the valve plate (9) close to the tooth plate (12) is in an arc shape, and the outer end of the arc shape of the valve plate (9) is fixedly connected to a tooth (13) meshing with the tooth plate (12).

2. A building drainage pipe according to claim 1, characterized in that: The sealing installation mechanism comprises a screw (6) and a sealing ring (14); the outer end of the drainage branch pipe (3) is threadedly connected to the screw (6); the screw (6) passes through the side wall of the drainage branch pipe (3) and forms a threaded connection with the valve core (5); a sealing ring (14) is provided at the contact point between the valve core (5) and the drainage branch pipe (3).

3. The drainage pipe for a building according to claim 1, characterized in that: The cross section of the valve hole (7) is funnel-shaped, and the area of ​​the opening at one end of the valve hole (7) away from the mounting branch pipe (2) is larger than the area of ​​the opening at one end of the valve hole (7) close to the mounting branch pipe (2).

4. A building drainage pipe according to claim 1, characterized in that: The material of the spring (11) is stainless steel, and the outer end of the spring (11) is provided with a wear-resistant layer.

5. The drainage pipe for a building according to claim 2, characterized in that: The cross-sections of the sealing ring (14) and the drainage branch pipe (3) are both circular, and the centers of the cross-sections of the drainage branch pipe (3), the valve core (5) and the sealing ring (14) coincide with each other.

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