Pollution discharge non-return structure and closestool

Abstract

The utility model discloses a pollution discharge non-return structure and a closestool, which realize an efficient and stable non-return function and are particularly suitable for the closestool. The blowdown non-return structure is arranged in a blowdown pipe and comprises a supporting pipe and a non-return sleeve, and the non-return sleeve is made of a soft material; the supporting pipe is arranged at the inlet end of the blow-off pipe, a plurality of supporting parts are arranged at the outlet end of the supporting pipe, and a hollowed-out receding notch is formed between every two adjacent supporting parts; the first end of the non-return sleeve wraps the circumferential surface of the supporting pipe, deformation parts are arranged at the positions corresponding to the receding notches, and the end parts of the deformation parts are enclosed at the second end of the non-return sleeve to form a sewage draining exit capable of being opened and closed; in a normal state, the deformation parts are sunken in the corresponding receding notches, and the drain outlets are in a closed state.

Description

TECHNICAL FIELD

[0001] The utility model belongs to closestool technical field, especially point to a kind of sewage check valve structure and closestool. BACKGROUND

[0002] Closestool is a kind of sanitary facility, mainly used for discharging sewage, usually installed in bathroom or bathroom. Closestool removes the excrement of human body through flushing system, keeps sanitary and clean. Usually, closestool needs to be matched with anti-siphon, check valve and other designs to prevent sewage backflow, so that sewage pipe has the function of check / anti-reverse.

[0003] In prior art, closestool in building can realize anti-siphon function by using water trap pipe behind closestool sewage pipe, but similar structure is not suitable for simple closestool used in recreational vehicle, yacht and other occasions. Among them, closestool in yacht is easily affected by sea water pressure when discharging sewage, and it is very likely to produce reverse flow phenomenon. At the same time, because the sewage discharged by closestool may contain toilet paper, fiber and other things that are easy to entangle with spring, spring type check valve is also not suitable. Therefore, it is necessary to specially design simple, stable and effective sewage check valve structure for these simple closestools. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of sewage check valve structure and closestool, solve the problems existing in prior art, realize efficient and stable check function, especially suitable for closestool.

[0005] In order to achieve the above purpose, one of the solutions of the utility model is:

[0006] A sewage check valve structure is arranged in sewage pipe, comprising support pipe and check sleeve, the check sleeve is made of soft material;The support pipe is arranged at the inlet end of the sewage pipe, the outlet end of the support pipe is provided with a plurality of support parts, and the adjacent support parts are provided with a hollow gap;The first end of the check sleeve is covered on the peripheral surface of the support pipe, and the position corresponding to each gap is provided with a deformation part, and the end of each deformation part is enclosed to form an openable sewage outlet at the second end of the check sleeve;In normal state, the deformation part is recessed in the corresponding gap, and the sewage outlet is in closed state.

[0007] The gap is V-shaped gap in the end surface of the support pipe, and each gap is arranged at equal angle interval around the axis of the support pipe.

[0008] Preferably, the deformation part comprises two symmetrical and integrally connected membrane flaps, the first end of the two membrane flaps is connected to the tip of the V-shaped gap, and the second end of the two membrane flaps is also V-shaped and connected to the membrane flap of other deformation part to enclose the sewage outlet.

[0009] Preferably, the second ends of the membrane flaps are each provided with a thickened edge.

[0010] The second solution of the utility model is:

[0011] A toilet, the sewage check valve structure is applied to.

[0012] The toilet comprises a bowl, a sewage base, an adapter seat and a pump, the sewage base is communicatively installed at the bottom of the bowl, the adapter seat is butted against the sewage base to form a sewage cavity, and a water inlet cavity is arranged in the adapter seat, the sewage pipe is connected with the sewage base to realize communication with the sewage cavity, the inlet end of the water inlet cavity is communicated with a water source, and the outlet end is communicated with the water inlet of the bowl, and the pump is used for providing power to realize water inlet and sewage discharge.

[0013] Preferably, a step is arranged at the position where the sewage base is connected with the sewage pipe, the first end of the check valve sleeve is radially protruded to form a limiting ring, and the end face of the sewage pipe is used to press and fix the limiting ring at the step.

[0014] Preferably, the sewage cavity and the water inlet cavity are coaxially arranged, a rotating shaft is arranged between the sewage cavity and the water inlet cavity in a dynamic sealing mode, two impellers are installed on the rotating shaft and located in the sewage cavity and the water inlet cavity respectively, and the rotating shaft is driven by the pump.

[0015] Preferably, the outlet end of the water inlet cavity is communicated with the water inlet of the bowl through a pipeline.

[0016] Preferably, the surface cover of the pump is provided with an outer shell.

[0017] After the above technical scheme is adopted, the utility model has the following technical effects:

[0018] The utility model discloses a supporting pipe is arranged in the sewage pipe to keep the shape of the check valve sleeve, especially the supporting part of the supporting pipe can fix the shape of the second end of the check valve sleeve, and the stable opening and closing of the sewage outlet are ensured, when the sewage pipe normally discharges sewage, the deformed part recessed in the gap can be extruded by the sewage to open outward, so that the sewage outlet is opened, and when the sewage pipe generates a reverse flow, the deformed part is reset by the sewage of the reverse flow, at this time, the supporting part can keep the shape of the check valve sleeve, which can ensure that the sewage outlet is closed to realize the check function, and can also ensure that the sewage outlet can be normally opened in the subsequent use, so that the stability of the toilet function is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the sewage check valve structure of the utility model embodiment;

[0020] Figure 2 It is the toilet of the utility model embodiment Figure 1 ;

[0021] Figure 3 The toilet of the embodiment of the utility model Figure 2 ;

[0022] Figure 4 The toilet cross section of the embodiment of the utility model Figure 1 ;

[0023] Figure 2 The toilet cross section of the embodiment of the utility model in the collective dormitory Figure 1 ;

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1 - drain pipe;2 - support pipe;21 - support part;22 - let gap;3 - check sleeve;31 - deformation part;311, 311' - membrane flap;312 - thickened edge;32 - drain port;33 - limiting ring;4 - bowl;41 - water inlet;5 - drain base;51 - step;6 - adapter seat;7 - pump;8 - rotating shaft;9 - impeller;10 - pipeline;20 - shell;a - drain cavity;b - water inlet cavity. DETAILED DESCRIPTION

[0026] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0027] Reference Figures 2-5 The utility model discloses a drain check structure, which is arranged in a drain pipe 1 and comprises a support pipe 2 and a check sleeve 3, wherein the check sleeve 3 is made of soft material.

[0028] The support pipe 2 is arranged at the inlet end of the drain pipe 1, and the outlet end of the support pipe 2 is provided with a plurality of support parts 21, and a hollow let gap 22 is arranged between adjacent support parts 21.

[0029] The first end of the check sleeve 3 is wrapped around the circumferential surface of the support pipe 2, and a deformation part 31 is arranged at the position corresponding to each let gap 22, and the end part of each deformation part 31 is enclosed to form a closable drain port 32 at the second end of the check sleeve 3.

[0030] By the above scheme, the utility model discloses a support pipe 2 for keeping the shape of check valve 3 is arranged in the sewage pipe 1, especially the support of support pipe 2 21 can fix the shape of the second end of check valve 3, guarantee the stable opening and closing of sewage outlet 32, when sewage pipe 1 normal sewage, dirt can extrude the deformation part 31 recessed in the accommodation gap 22 and make it outwardly open, to this open sewage outlet, and when sewage pipe 1 generates reverse flow phenomenon, deformation part 31 is extruded by the dirt of reverse flow and resets, at this time, the support of support pipe 2 21 can keep the shape of check valve 3, can guarantee to make sewage outlet 32 close and realize check function, also can guarantee that subsequent use sewage outlet 32 can also open normally, thereby realize the stability of closestool function.

[0031] The following shows the specific embodiment of the above sewage check structure.

[0032] The above soft material can be soft glue, film and other materials that can be deformed under stress.

[0033] The above accommodation gap 22 is a V-shaped gap in the end face of support pipe 2, and each accommodation gap 22 is arranged at equal angles around the axis of support pipe 2.

[0034] Further, the above deformation part 31 includes left-right symmetrical and integrally connected membrane flaps 311, 311', the first ends of the two membrane flaps 311, 311' are connected to the tip of the V-shaped gap, and the second ends of the two membrane flaps 311, 311' are also V-shaped and connected to the membrane flaps of other deformation parts to form the above-mentioned sewage outlet 32.

[0035] Secondly, the second end of the above-mentioned membrane flap 311 is provided with a thickened edge 312 for ensuring the shape stability of the sewage outlet 32.

[0036] Reference ​ As shown in the drawings, the utility model also discloses a closestool, which applies the above-mentioned sewage check structure, and thus has the same technical effects.

[0037] The following shows the specific embodiment of the above closestool.

[0038] The above closestool includes a toilet bowl 4, a sewage base 5, an adapter seat 6 and a pump 7; the sewage base 5 is communicatively installed at the bottom of the toilet bowl 4; the adapter seat 6 is butted against the sewage base 5 to form a sewage cavity a, and the adapter seat 6 is provided with a water inlet cavity b; the sewage pipe 2 is connected with the sewage base 5 to realize communication with the sewage cavity a, the inlet end of the water inlet cavity b is communicated with a water source, and the outlet end is communicated with the water inlet 41 of the toilet bowl 4; the pump 7 is used for providing power to realize water inlet and sewage.

[0039] In some embodiments of the toilet, the sewage base 5 is provided with a step 51 at the position where the sewage pipe 2 is connected; the first end of the check sleeve 3 is radially protruded to form a limiting ring 33; the end surface of the sewage pipe 2 is pressed against the limiting ring 33 at the step 51 to fix the check sleeve 3. In this embodiment, the sewage pipe 2 is fixed to the sewage base 5 by screws.

[0040] In some embodiments of the toilet, the sewage cavity a and the water inlet cavity b are coaxially arranged, and a rotating shaft 8 is arranged between the two cavities in dynamic sealing manner; two impellers 9, 9' are arranged on the rotating shaft 8 and located in the sewage cavity a and the water inlet cavity b respectively; the rotating shaft 8 is driven by the pump 7. Thus, only one pump 9 is used to simultaneously realize the power output of water inlet and sewage, save energy, and the structure of the toilet is simpler.

[0041] In some embodiments of the toilet, the outlet end of the water inlet cavity b is connected to the water inlet of the bowl 4 through a pipeline 10.

[0042] In some embodiments of the toilet, the surface cover of the pump 7 is provided with a shell 20.

[0043] The above embodiments and drawings are not limited to the product shape and style of the utility model, and any ordinary skilled person in the art can make appropriate changes or modifications, which should be considered as not departing from the scope of the utility model.

Claims

1. A sewage backflow prevention structure, installed inside a sewage pipe, characterized in that: It includes a support tube and a check sleeve, the check sleeve being made of a soft material; The support pipe is located at the inlet end of the sewage pipe, and the outlet end of the support pipe is provided with several support parts, with hollow clearance notches provided between adjacent support parts. The first end of the check sleeve covers the circumference of the support tube, and a deformable part is provided at the position corresponding to each clearance notch. The ends of each deformable part are surrounded by the second end of the check sleeve to form an openable and closable drain port. Under normal conditions, the deformable part is recessed in the corresponding clearance notch, and the drain port is in a closed state.

2. The backflow prevention structure as described in claim 1, characterized in that: The clearance notch is a V-shaped notch cut out of the end face of the support tube, and the clearance notches are arranged at equal angular intervals around the axis of the support tube.

3. The backflow prevention structure as described in claim 2, characterized in that: The deformable portion includes symmetrical and integrally connected membrane flaps. The first ends of the two membrane flaps are connected to the tip of the V-shaped notch, and the second ends of both are also V-shaped and connected to the membrane flaps of other deformable portions to enclose and form the sewage outlet.

4. The backflow prevention structure as described in claim 3, characterized in that: The second end of each flap is provided with a thickened edge.

5. A toilet, characterized in that... The drain check structure as described in any one of claims 1 to 4 is applied.

6. The toilet as described in claim 5, characterized in that: The toilet includes a bowl, a drain base, an adapter, and a pump; the drain base is installed at the bottom of the bowl; the adapter is connected to the drain base to form a drain chamber, and the adapter has a water inlet chamber; the drain pipe is connected to the drain base to communicate with the drain chamber, the inlet of the water inlet chamber is connected to a water source, and its outlet is connected to the water inlet of the bowl; the pump provides power to achieve water intake and sewage discharge.

7. The toilet as described in claim 6, characterized in that: The drain base has a step at the location where the drain pipe is connected; the first end of the check sleeve protrudes radially to form a limiting ring; the end face of the drain pipe presses and fixes the limiting ring at the step.

8. The toilet as described in claim 6, characterized in that: The sewage discharge chamber and the water inlet chamber are coaxially arranged, and a rotating shaft is dynamically sealed between them. Two impellers are installed on the rotating shaft, and the two impellers are located in the sewage discharge chamber and the water inlet chamber, respectively. The rotating shaft is driven by the pump.

9. The toilet as described in claim 6, characterized in that: The outlet of the water inlet chamber is connected to the water inlet of the toilet bowl via a pipe.

10. The toilet as described in claim 6, characterized in that: The pump's surface is covered with an outer shell.

Images