Anti-backflow sewer pipeline structure

Abstract

The utility model discloses an anti-backflow sewer pipeline structure which comprises a multi-way pipeline, the multi-way pipeline comprises at least two communicated water conveying pipelines, water inlets correspondingly communicated with the water conveying pipelines and a centralized water outlet communicated with the water conveying pipelines, and a one-way valve is installed in each water conveying pipeline. Therefore, each water conveying pipeline can realize relatively independent one-way drainage, the water conveying pipelines do not influence each other, and independent anti-backflow basin returning is realized. The one-way valve comprises a valve body with two open ends and a valve cover hinged to the rear port of the valve body, the axial direction of the valve body is the same as the axial direction of the corresponding water conveying pipeline, and the valve body is horizontally placed; the valve cover inclines relative to the axial direction of the water conveying pipeline and covers the rear port of the valve body in an inclined state under the action of gravity, a pressure mechanism is not needed to press the valve cover to enable the valve cover to cover the rear port of the valve body, and the structure is simpler.

Description

Technical Field

[0001] The utility model relates to the field of sewer pipes, in particular to a sewer pipe structure for preventing backflow. Background Art

[0002] The sink is a necessary water vessel for the kitchen, which can be divided into single basin, double basin and multiple basins. The drain as a sink accessory is one of the main accessories of building drainage, and its components mainly include a drain head and a drain pipe. In order to prevent odor and sewage backflow, the prior art is to install a one-way valve (one-way guide valve) in the pipeline. For example, the utility model patent document with patent number CN202120957896.8 and the name of a multifunctional water outlet head discloses that an odor-proof inner core with a one-way valve is set in the water outlet head to achieve odor prevention. When connecting double-basin or multi-basin utensils, a multi-way pipeline is required to connect. The multi-way pipeline is connected to the utensils through multiple water pipes. The one-way valve is set in the centralized water outlet section. The water pipes are interconnected. If the water outlet section is blocked, the sewage in one basin will be conducted to another basin, affecting each other. How to achieve independent drainage of multiple water pipes and prevent backflow is the technical problem to be solved by the utility model.

[0003] In addition, the existing one-way valve is vertically installed in a vertical pipe, and the valve cover of the one-way valve is sealed by a torsion spring or other pressure mechanism. How to make the structure of the one-way valve simpler is also a technical problem that the utility model further approaches. Utility Model Content

[0004] The main purpose of the utility model is to provide a sewer pipe structure to prevent backflow, aiming to achieve independent drainage and backflow prevention of multiple water delivery pipes.

[0005] The utility model proposes a sewer pipe structure to prevent backflow, comprising a multi-way pipe, wherein the multi-way pipe comprises at least two interconnected water delivery pipes, water inlets respectively corresponding to the water delivery pipes and a centralized water outlet connected to the water delivery pipes, and a one-way valve is installed in each of the water delivery pipes.

[0006] Preferably, the water pipeline is laid flat, and the one-way valve comprises a valve body with openings at both ends and a valve cover hinged on the rear port of the valve body, the axial direction of the valve body is the same as the axial direction of the corresponding water pipeline, and the valve cover is arranged in an inclined state to cover the rear port of the valve body, and the valve cover is inclined relative to the axial direction of the water pipeline.

[0007] Preferably, the rear port of the valve body is arranged to be inclined with the lower end extending forward.

[0008] Preferably, the edge of the valve cover is wrapped with a sealing rubber ring.

[0009] Preferably, two water pipelines are provided, and the two water pipelines are connected at an acute angle.

[0010] Preferably, the centralized water outlet is arranged at the end of one of the water delivery pipelines.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a sewer pipe structure for preventing backflow, in which a one-way valve is installed in each water pipe, so that each water pipe can discharge water in a relatively independent one-way manner without affecting each other, thus realizing independent backflow prevention.

[0013] The water supply pipeline is laid flat, and the one-way valve includes a valve body with openings at both ends and a valve cover hinged at the rear port of the valve body. The axial direction of the valve body is the same as the axial direction of the corresponding water supply pipeline and is laid flat; the valve cover is inclined relative to the axial direction of the water supply pipeline, and is sealed on the rear port of the valve body in an inclined state under the action of gravity. No pressure mechanism is required to press the valve cover to make it seal on the rear port of the valve body, and the structure is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic structural diagram of a sewer pipe structure for preventing backflow.

[0015] Figure 2 The utility model is a structural assembly diagram of a sewer pipe structure for preventing backflow.

[0016] Figure 3 It is a top view of the anti-backflow sewer pipe structure of the utility model.

[0017] Figure 4 This is a state diagram of the two water delivery pipes of the anti-backflow sewer pipe structure of the utility model when water is not flowing.

[0018] Figure 5 This is a state diagram of the first water delivery pipeline of the anti-backflow sewer pipeline structure of the utility model when water is flowing.

[0019] Figure 6 This is a state diagram of the second water delivery pipe of the anti-backflow sewer pipe structure of the utility model when water is flowing.

[0020] Figure 7 This is a state diagram of the two water pipes of the anti-backflow sewer pipe structure of the utility model when water is flowing.

[0021] Figure 8 The utility model is an assembly diagram of the anti-backflow sewer pipe structure.

[0022] Fig. 9 This is a usage status diagram of the anti-backflow sewer pipe structure of the utility model.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout identify the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] Reference Figures 1 to 9 The embodiment of the utility model provides a backflow prevention sewer pipe structure, including a multi-way pipe, the multi-way pipe includes two connected water pipes 1, 2, water inlets 11, 12 respectively connected to the water pipes 1, 2, and a centralized water outlet 3 connected to the water pipes 1, 2. Figure 1 As shown, the two water pipelines 1 and 2 are connected at an acute angle a, the centralized water outlet 3 is arranged at the end of the first water pipeline 1, the first water inlet 11 is vertically connected to the front end of the first water pipeline 1, the second water inlet 21 is located at the front end of the second water pipeline 2, and the second water pipeline 2 is connected with two overflow interfaces 22. Figure 8 , 9 As shown, the second water inlet 21 is connected to the L-shaped water pipe.

[0028] One-way valves 4 are installed in the first water pipeline 1 and the second water pipeline 2, respectively. The first water pipeline 1 and the second water pipeline 2 are placed horizontally, and the one-way valve 4 includes a valve body 41 with openings at both ends and a valve cover 42 hinged to the rear port of the valve body 41. The axial direction of the valve body 41 is the same as the axial direction of the corresponding water pipeline, and the rear port of the valve body 41 is inclined with the lower end extending forward. The valve cover 42 is inclined relative to the axial direction of the corresponding water pipeline, and is sealed on the rear port of the valve body 41 in an inclined state under the action of gravity. No pressure mechanism is required to press the valve cover 42 to make it seal on the rear port of the valve body 41, and the structure is simpler.

[0029] The edge of the valve cover 42 is wrapped with a sealing rubber ring, which is used to increase the sealing performance when the valve cover 42 is covered on the rear port of the valve body 41.

[0030] like Figure 4 As shown, when no water enters the water inlets 11 and 21 of the first water pipeline 1 and the second water pipeline 2, the one-way valves 4 inside are in a closed state under the action of gravity, and the water pouring back from the centralized water outlet 3 cannot flow into the first water pipeline 1 and the second water pipeline 2 because the valve cover 4 is closed.

[0031] like Figure 5 As shown, water is discharged into the first water pipeline 1 from the water inlet 11, and no water enters the water inlet 21 of the second water pipeline 2. The one-way valve 4 inside the first water pipeline 1 is in an open state under the impact of water, and the one-way valve 4 inside the second water pipeline 2 is in a closed state, so that the first water pipeline 1 can drain water independently and cannot flow back into the second water pipeline 2, and they do not affect each other.

[0032] like Figure 6 As shown, water is discharged into the second water pipeline 2 from the water inlet 21, and no water enters the water inlet 11 of the first water pipeline 1. The one-way valve 4 inside the second water pipeline 2 is in an open state under the impact of water, and the one-way valve 4 inside the first water pipeline 1 is in a closed state, so that the second water pipeline 2 can drain water independently and cannot flow back into the first water pipeline 1, and they do not affect each other.

[0033] like Figure 7 As shown, water is discharged into the first water pipeline 1 and the second water pipeline 2 from the water inlet, and the one-way valves 4 inside the first water pipeline 1 and the second water pipeline 2 are both in an open state under the impact of water, thereby achieving drainage of the first water pipeline 1 and the second water pipeline 2.

[0034] The utility model provides a sewer pipe structure for preventing backflow, in which a one-way valve is installed in each water pipe, so that each water pipe can discharge water in a relatively independent one-way manner without affecting each other, thus realizing independent backflow prevention.

[0035] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A sewer pipe structure for preventing backflow, comprising a multi-pass pipe, characterized in that: The multi-channel pipeline includes two interconnected water pipelines, water inlets respectively connected to the water pipelines and a centralized water outlet connected to the water pipelines, the two water pipelines are connected at an acute angle, and the centralized water outlet is arranged at the end of one of the water pipelines; The water delivery pipelines are laid flat, and a one-way valve is installed in each of the water delivery pipelines; The one-way valve includes a valve body with openings at both ends and a valve cover hinged on the rear port of the valve body. The axial direction of the valve body is the same as the axial direction of the corresponding water pipeline. The valve cover is arranged on the rear port of the valve body in an inclined state, and the valve cover is inclined relative to the axial direction of the water pipeline.

2. The anti-backflow sewer pipe structure according to claim 1, characterized in that: The rear port of the valve body is arranged in an inclined manner with the lower end extending forward.

3. The anti-backflow sewer pipe structure according to claim 2, characterized in that: The edge of the valve cover is wrapped with a sealing rubber ring.

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