A same-floor drainage pipe system with anti-overflow function

Abstract

The present invention discloses a same-floor drainage pipe system with an anti-backflow function, comprising a drainage riser, a same-floor merger, a horizontal branch pipe, an anti-backflow component, an error correction hose and a side wall floor drain connected in sequence, wherein the anti-backflow component and the error correction hose are arranged horizontally, and the axis height of the anti-backflow component is lower than the horizontal axis height of the side wall floor drain; the anti-backflow component comprises an inflow end pipe, an anti-backflow plate and a discharge end pipe, the inflow end pipe and the discharge end pipe are sealed and connected, the anti-backflow plate is arranged between the inflow end pipe and the discharge end pipe, the inflow end pipe is provided with an inclined step surface, the upper end of the step surface is inclined to the direction of the inflow end pipe, the upper end of the anti-backflow plate is hinged with the inflow end pipe, and the anti-backflow plate is tightly fitted on the step surface under the action of gravity. The present invention provides a same-floor drainage pipe system with an anti-backflow function, which solves the problem of low space height occupied by the drainage pipe without lowering the plate, achieves the purpose of no backflow and no odor, and has smooth drainage.

Description

Technical Field

[0001] The invention relates to the technical field of building decoration, and in particular to a same-floor drainage pipeline system with an anti-overflow function. Background Art

[0002] Prefabricated decoration refers to the decoration method of assembling and installing factory-produced parts on site without using cement or other dry construction methods. It mainly includes dry construction floor (ground), integrated kitchen, integrated bathroom, pipeline and structure separation, etc. It has the characteristics of environmental protection and energy saving, short construction period, decoration materials and pipelines do not damage the main structure, and it is convenient for later replacement and maintenance. In recent years, under the strong promotion of national policies, prefabricated decoration has become more and more popular.

[0003] At present, prefabricated decoration is generally used in small-sized affordable housing, public rental housing, hotels and other projects. Especially in hotel projects, the frequency of decoration is very high, generally about 5 years to renovate, and the time requirement for decoration is also high. Short construction period can be put into operation earlier, bringing more benefits; and in order to improve the utilization rate of floor height, generally adopt non-drop floor design, pipeline system generally still adopts traditional through-floor interlayer drainage pipeline system, waterproofing adopts traditional coating wet operation. If the prefabricated method is adopted and the waterproof chassis is used as the bathroom waterproofing measure, it cannot fully achieve the purpose of dry construction to facilitate installation and disassembly and good sealing effect. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a same-floor drainage pipe system with an anti-overflow function, which solves the problem of low space occupied by the drainage pipe without lowering the floor, achieves the purpose of no overflow and no odor, and ensures smooth drainage.

[0005] A further object of the present invention is to avoid the situation where sewage slowly flows back due to long-term blockage in the drainage riser or the same-level merger.

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

[0007] A same-floor drainage pipe system with an anti-backflow function comprises a drainage riser, a same-floor merger, a horizontal branch pipe, an anti-backflow component, a correction hose and a side wall floor drain which are connected in sequence, wherein the anti-backflow component and the correction hose are arranged transversely, and the axial height of the anti-backflow component is lower than the transverse axis height of the side wall floor drain; the anti-backflow component comprises an inlet end pipe, an anti-backflow plate and a discharge end pipe, the inlet end pipe and the discharge end pipe are sealed and connected, the anti-backflow plate is arranged between the inlet end pipe and the discharge end pipe, an inclined step surface is provided on the inlet end pipe, the upper end of the step surface is inclined towards the direction of the inlet end pipe, the upper end of the anti-backflow plate is hinged to the inlet end pipe, and the anti-backflow plate fits tightly on the step surface under the action of gravity.

[0008] In the above technical solution, the same-layer combiner has a common water seal integrated in the same-layer combiner, and there are no less than lateral branch pipe interfaces, each of which is connected to the same-layer combiner. The water flow of the lateral branch pipe enters the drainage riser after passing through the water seal, and each lateral branch pipe can be freely rotated to adjust the direction; the anti-backflow component is connected to the lateral branch pipe, between the same-layer combiner and the error correction hose. The anti-backflow plate inside the anti-backflow component closes the pipeline under the action of gravity through the rotating shaft. When draining, the anti-backflow plate opens under the action of flowing water. When there is water backflow in the lateral branch pipe, the anti-backflow plate closes the pipeline; the side wall floor drain is connected to the lateral branch pipe through the error correction hose to ensure the connection of the side wall floor drain with a higher elevation than the lateral branch pipe and the misalignment connection between the side wall floor drain and the lateral branch pipe interface caused by assembly error in the horizontal direction. The existing conventional pipes are set under the waterproof chassis. In this solution, the drainage pipe runs along the side of the waterproof chassis, thereby saving space height; in this application solution, when multiple waterproof chassis need to be set, the drainage collection pipe can be set along the gap between two adjacent waterproof chassis to further optimize the space occupation. The above technical solution solves the problem of low space height occupied by the drainage pipe without lowering the floor, achieves the purpose of no overflow and no odor, and has smooth drainage.

[0009] Preferably, the angle between the step surface and the axis of the inflow end pipe is 10°-60°. The structure ensures that the anti-return plate can be opened and closed under the dual effects of gravity and water flow.

[0010] Preferably, the inlet end pipe and the outlet end pipe are bonded together by glue to form a whole, forming a larger rectangular tubular cavity in the middle, and the two ends of the rectangular tubular cavity have circular interfaces. The structure can make the opening angle of the anti-backflow plate and the flow rate of the anti-backflow component close to a linear correlation, and the circular interfaces at both ends are convenient for connection with the horizontal branch pipe and the error correction hose.

[0011] Preferably, a hinge hole structure is provided at the upper end of the step surface, and the hinge hole structure is a non-enclosed circular hole structure with an upper opening. The structure can ensure the stability of the hinge structure and facilitate the insertion of the hinge pin structure of the anti-return plate.

[0012] Preferably, the anti-return plate is provided with a sealing surface, the sealing surface is fitted with the step surface, and a hinge pin structure is provided at the upper portion of the anti-return plate, the hinge pin structure is fitted with the hinge hole structure. The structure can ensure the sealing effect of the anti-return plate.

[0013] Preferably, a floating block is provided on the side of the anti-return plate close to the discharge end pipe, the floating block is slidably connected to the anti-return plate, an insert plate is provided on the upper end of the floating block, a hinge hole structure is provided on the step surface, a limiting block is fixed on the hinge hole structure, when the floating block floats, the insert plate is located between the limiting block and the anti-return plate, and the insert plate is in contact with the limiting block.

[0014] When water flows back in the horizontal branch pipe and accumulates for a long time, if there is no water on the side of the inflow end pipe, the anti-return plate can ensure a good sealing effect under the action of its own gravity and water pressure. If water flows into the side of the inflow end pipe at this time, the pressure on the anti-return plate is reduced, and the anti-return plate sealing will fail under the disturbance of the water flow. The sewage on the side of the discharge end pipe will slowly penetrate into the inflow end pipe, resulting in the failure of the backflow function. In the above technical scheme, by setting a floating block structure, when the water level in the discharge end pipe rises, the floating block can drive the insertion plate to rise, insert between the limit block and the anti-return plate, and limit the rotation of the anti-return plate. At this time, even if water flows into and accumulates on one side of the inflow end pipe, the anti-return plate will not open. Only after the water level of the discharge end pipe drops, the floating block falls, and the anti-return plate can rotate freely. Thereby avoiding the situation where the sewage slowly flows back due to long-term blockage in the drainage riser or the same-layer merger. The total buoyancy of the floating block and the anti-return plate is less than the total gravity of the anti-return plate and the floating block.

[0015] Preferably, the upper end of the contact surface between the insert plate and the limit block is inclined toward the anti-return plate. The structure can generate a pressing force when the insert plate is inserted between the limit block and the anti-return plate, so that the anti-return plate presses the step surface to ensure the sealing effect.

[0016] Preferably, the floating block is arranged on the upper part of the anti-return plate.

[0017] The beneficial effects of the present invention are: (1) it solves the problem of low space occupied by drainage pipes without lowering the floor, achieves the purpose of no overflow and no odor, and ensures smooth drainage; (2) it avoids the situation where long-term blockage in the drainage riser or the same-level merger causes slow backflow of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is the structural explosion diagram of the anti-overflow component;

[0020] Figure 3 It is a schematic diagram of the structure of the waterproof chassis;

[0021] Figure 4 It is a structural schematic diagram of Example 2.

[0022] In the figure: drainage riser 1, same-layer merger 2, horizontal branch pipe 3, anti-backflow component 4, inlet end pipe 4.1, anti-backflow plate 4.2, discharge end pipe 4.3, step surface 4.4, hinge hole structure 4.5, hinge pin structure 4.6, float block 4.7, insert plate 4.8, limit block 4.9, contact surface 4.10, error correction hose 5, side wall floor drain 6, waterproof chassis 7, flat bottom surface 7.1, flange 7.2, rectangular pit 7.3. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1:

[0025] like Figure 1 As shown, a same-floor drainage pipe system with an anti-backflow function comprises a drainage riser 1, a same-floor combiner 2, a lateral branch pipe 3, an anti-backflow component 4, a correction hose 5, a side wall floor drain 6 and a waterproof chassis 7 which are connected in sequence, wherein the anti-backflow component 4 and the correction hose 5 are arranged transversely, and the axial height of the anti-backflow component 4 is lower than the transverse axial height of the side wall floor drain 6; the same-floor combiner 2 has a common water seal integrated in the same-floor combiner 2, and the lateral branch pipe 3 has at least one interface, each of which is respectively connected to the same-floor combiner 2, and the water flow of the lateral branch pipe 3 enters the drainage riser 1 after passing through the water seal, and each lateral branch pipe 3 can be freely rotated to adjust the direction; the anti-backflow component 4 is connected to the lateral branch pipe 3, and is located between the same-floor combiner 2 and the correction hose 5. The anti-backflow plate 4.2 inside the anti-backflow component 4 closes the pipe under the action of gravity through the rotating shaft. When draining, the anti-backflow plate 4.2 opens under the action of flowing water. When water flows back in the horizontal branch pipe 3, the anti-backflow plate 4.2 closes the pipe; the side wall floor drain 6 is connected to the horizontal branch pipe 3 through the error correction hose 5 to ensure that the side wall floor drain 6 is connected at a higher elevation than the horizontal branch pipe 3 and that the side wall floor drain 6 and the horizontal branch pipe 3 are misaligned in the horizontal direction due to assembly errors. Figure 3 As shown, the waterproof chassis 7 includes a flat bottom surface 7.1 and a flange 7.2 that is turned up along the periphery, the flange 7.2 is perpendicular to the flat bottom surface 7.1, and a downwardly protruding rectangular pit 7.3 is provided at the intersection of the flange 7.2 and the flat bottom surface 7.1, one side of the rectangular pit 7.3 coincides with the flange 7.2, and the side wall floor drain 6 is arranged at the position of the rectangular pit 7.3 and clamps the side.

[0026] like Figure 2As shown, the anti-backflow component 4 includes an inlet end pipe 4.1, an anti-backflow plate 4.2 and a discharge end pipe 4.3. The inlet end pipe 4.1 and the discharge end pipe 4.3 are bonded together by glue to form a whole, forming a larger rectangular tubular cavity in the middle, and the two ends of the rectangular tubular cavity have circular interfaces. The anti-backflow plate 4.2 is arranged between the inlet end pipe 4.1 and the discharge end pipe 4.3. The inlet end pipe 4.1 is provided with an inclined step surface 4.4, and the upper end of the step surface 4.4 is inclined to the direction of the inlet end pipe 4.1. The upper end of the anti-backflow plate 4.2 is hinged to the inlet end pipe 4.1. The anti-backflow plate 4.2 is provided with a sealing surface, and the sealing surface is adapted to fit the step surface 4.4. Under the action of gravity, the anti-backflow plate 4.2 is tightly fitted on the step surface 4.4. The vertical plane where the axis of the inlet end pipe 4.1 is located is perpendicular to the step surface 4.4. The angle between the step surface 4.4 and the axis of the inlet end pipe 4.1 is 10°-60°. The upper end of the step surface 4.4 is provided with two hinge hole structures 4.5, which are symmetrically distributed and are non-enclosed circular hole structures with upper openings. The upper part of the anti-return plate 4.2 is provided with a hinge pin structure 4.6, which is adapted to the hinge hole structure 4.5.

[0027] In the above technical scheme, the anti-return plate 4.2 inside the anti-return part 4 closes the pipeline under the action of gravity through the rotating shaft, and the anti-return plate 4.2 opens under the action of running water during drainage. When there is water backflow in the horizontal branch pipe 3, the anti-return plate 4.2 closes the pipeline; the side wall floor drain 6 is connected to the horizontal branch pipe 3 through the error correction hose 5 to ensure that the side wall floor drain 6 is connected at a higher elevation than the horizontal branch pipe 3 and the side wall floor drain 6 and the horizontal branch pipe 3 interface are misaligned in the horizontal direction due to assembly error. The above technical scheme solves the problem of low space occupied by the drainage pipeline without lowering the plate, achieves the purpose of no overflow and no odor, and drains smoothly. A waterproof chassis 7 is also used to solve the problem of misalignment adjustment during the installation of the pipeline system and the waterproof chassis 7, facilitate construction, and the problem of repeatable disassembly and connection between the pipeline and the waterproof chassis 7, thereby achieving the purpose of assembled dry construction in a true sense.

[0028] Embodiment 2:

[0029] like Figure 4As shown, on the basis of Example 1, a floating block 4.7 is provided on one side of the anti-return plate 4.2 close to the discharge end pipe 4.3, and the floating block 4.7 is arranged on the upper half of the anti-return plate 4.2. The floating block 4.7 is slidably connected with the anti-return plate 4.2, and an insert plate 4.8 is provided on the upper end of the floating block 4.7, and a hinge hole structure 4.5 is provided on the step surface 4.4, and a limit block 4.9 is fixed on the hinge hole structure 4.5. When the floating block 4.7 floats, the insert plate 4.8 is located between the limit block 4.9 and the anti-return plate 4.2, and the insert plate 4.8 contacts the limit block 4.9. The upper end of the contact surface 4.10 between the insert plate 4.8 and the limit block 4.9 is inclined toward the side of the anti-return plate 4.2. The total buoyancy of the floating block 4.7 and the anti-return plate 4.2 is less than the total gravity of the anti-return plate 4.2 and the floating block 4.7.

[0030] When water flows back in the horizontal branch pipe 3 and accumulates for a long time, if there is no water on the side of the inflow end pipe 4.1, the anti-return plate 4.2 can ensure a good sealing effect under the action of its own gravity and water pressure. If water flows into the side of the inflow end pipe 4.1 at this time, the pressure on the anti-return plate 4.2 is reduced, and the anti-return plate 4.2 will fail to seal under the disturbance of the water flow, and the sewage on the side of the discharge end pipe 4.3 will slowly penetrate into the inflow end pipe 4.1, resulting in failure of the backflow function. In the above technical scheme, by setting the floating block 4.7 structure, when the water level in the discharge end pipe 4.3 rises, the floating block 4.7 can drive the insertion plate 4.8 to rise, insert between the limit block 4.9 and the anti-return plate 4.2, and limit the rotation of the anti-return plate 4.2. At this time, even if water flows into and accumulates on the side of the inflow end pipe 4.1, the anti-return plate 4.2 will not open. Only when the water level of the discharge end pipe 4.3 drops, the floating block 4.7 falls, and the anti-return plate 4.2 can rotate freely. This avoids the situation where the sewage slowly flows back due to long-term blockage in the drainage riser 1 or the same-layer merger 2.

[0031] The beneficial effects of the present invention are: (1) it solves the problem of low space occupied by drainage pipes without lowering the floor, achieves the purpose of no overflow and no odor, and ensures smooth drainage; (2) it avoids the situation where the drainage riser 1 or the same-level merger 2 is blocked for a long time, resulting in slow backflow of sewage.

Claims

1. A same-floor drainage pipe system with anti-overflow function, characterized in that: It includes a drainage riser, a same-floor merger, a horizontal branch pipe, an anti-backflow component, an error correction hose and a side wall floor drain that are connected in sequence. The anti-backflow component and the error correction hose are arranged horizontally, and the axis height of the anti-backflow component is lower than the horizontal axis height of the side wall floor drain; the anti-backflow component includes an inlet end pipe, an anti-backflow plate and a discharge end pipe, the inlet end pipe and the discharge end pipe are sealed and connected, the anti-backflow plate is arranged between the inlet end pipe and the discharge end pipe, the inlet end pipe is provided with an inclined step surface, the upper end of the step surface is inclined to the direction of the inlet end pipe, the upper end of the anti-backflow plate is hinged with the inlet end pipe, and the anti-backflow plate is tightly fitted on the step surface under the action of gravity; A floating block is provided on one side of the anti-return plate close to the discharge end pipe. The floating block is slidably connected to the anti-return plate. An insert plate is provided on the upper end of the floating block. A hinge pin structure is provided on the step surface. A limit block is fixed on the hinge pin structure. When the floating block floats, the insert plate is located between the limit block and the anti-return plate, and the insert plate contacts the limit block.

2. A same-floor drainage pipe system with anti-overflow function as claimed in claim 1, characterized in that: The total buoyancy of the floating block and the anti-return plate is less than the total gravity of the anti-return plate and the floating block.

3. A same-floor drainage pipe system with anti-overflow function as claimed in claim 1, characterized in that: The included angle between the step surface and the axis of the inflow end pipe is 10°-60°.

4. A same-floor drainage pipe system with anti-overflow function as claimed in claim 1, characterized in that: The inlet end pipe and the outlet end pipe are bonded together by glue to form a whole, forming a rectangular tubular cavity in the middle, and both ends of the rectangular tubular cavity have circular interfaces.

5. A same-floor drainage pipe system with anti-overflow function as claimed in claim 1, 2, 3 or 4, characterized in that: A hinge pin structure is provided at the upper end of the step surface, and the hinge pin structure is a non-closed circular hole structure with an upper opening.

6. A same-floor drainage pipe system with anti-overflow function as claimed in claim 5, characterized in that: The anti-return plate is provided with a sealing surface, which is adapted to fit with the step surface; a hinge pin structure is provided on the upper portion of the anti-return plate, which is adapted to fit with the hinge pin structure.

7. A same-floor drainage pipe system with anti-overflow function as claimed in claim 1, characterized in that: The upper end of the contact surface between the insert plate and the limit block is inclined toward the anti-return plate.

8. A same-floor drainage pipe system with anti-overflow function as claimed in claim 1, characterized in that: The floating block is arranged on the upper part of the anti-return plate.

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