Anti-siphon connecting piece for closestool

Abstract

The utility model relates to the technical field of bathroom equipment, in particular to an anti-siphon connecting piece for a closestool. The anti-siphon connecting piece for the closestool comprises a connecting piece main body which is used for connecting a water pump pipeline on a water storage tank and / or an upper flushing opening and / or a lower flushing opening of the closestool, and is characterized in that a water guide pipeline is arranged in the connecting piece main body, and an anti-siphon channel is arranged on the connecting piece main body; one end of the anti-siphon channel is communicated with the water guide pipeline, and the other end of the anti-siphon channel is communicated with outside air. The anti-siphon connecting piece is arranged in the water storage tank of the closestool, the upper flushing opening or the lower flushing opening of the closestool is communicated through the anti-siphon channel in the anti-siphon connecting piece, and air pressure balance between the upper flushing opening or the lower flushing opening and outside air is achieved, so that the anti-siphon effect is achieved.

Description

Technical Field

[0001] This application relates to the technical field of bathroom equipment, and more particularly to an anti-siphon connector for toilets. Background Technology

[0002] Commercially available jet siphon toilets have two flush nozzles: an upper nozzle that sprays water in a vortex-like downward flow, and a lower nozzle located in the water tank and aligned with the drain outlet. The water flow from the upper and lower nozzles is controlled by two independent solenoid valves. During flushing, the upper nozzle first sprays water to clean the tank walls, then stops flushing, while the lower nozzle sprays water to create a siphon effect, directly flushing waste into the drain outlet. After flushing, both the upper and lower flush pipes remain full due to atmospheric pressure, ready for the next cycle.

[0003] In traditional toilet flushing systems on the market, after flushing, the negative pressure in the flushing pipe may create a siphon effect, causing water in the storage chamber to be continuously drawn into the toilet bowl, resulting in water waste and even the risk of sewage, waste, and odor flowing back and contaminating the storage chamber, seriously affecting the use of the toilet. Utility Model Content

[0004] To address the technical problem that a siphon effect may occur in the flushing pipe due to negative pressure after flushing, causing water in the storage chamber to be continuously drawn into the toilet bowl, resulting in water waste and even the risk of sewage backflow contaminating the storage chamber, this utility model provides an anti-siphon connector for toilets.

[0005] Specifically, an anti-siphon connector for a toilet includes a connector body, which is used to connect the water pump pipe of the water storage tank and / or the upper flush port and / or lower flush port of the toilet. A water guide pipe is provided inside the connector body, and an anti-siphon channel is provided on the connector body. One end of the anti-siphon channel is connected to the water guide pipe, and the other end of the anti-siphon channel is connected to the outside air.

[0006] Furthermore, a cylindrical protrusion extends radially outward from the center of the connector body, and the anti-siphon channel is provided inside the cylindrical protrusion, the anti-siphon channel penetrating the cylindrical protrusion.

[0007] Furthermore, a limiting ring is provided on the outer wall of the connector body, protruding from the inside out, and the limiting ring is provided intermittently or continuously on the outer wall of the connector body.

[0008] Furthermore, a first barb is provided near the top of the connector body. The first barb protrudes outward from the outer wall of the connector body and is used for snap-fit ​​connection with the water pump pipe of the water storage tank.

[0009] Furthermore, an external thread is provided on the side near the limiting ring, and the main body of the connector is connected to the upper or lower flush port of the toilet through the external thread.

[0010] Furthermore, a cylindrical protrusion is provided above the limiting ring, and one or more sets of anti-siphon channels are provided, with all sets of anti-siphon channels located inside the cylindrical protrusion.

[0011] Furthermore, the multiple sets of anti-siphon channels are configured to be independent of each other or interconnected.

[0012] Furthermore, a positioning protrusion is provided on the main body of the connector, the positioning protrusion being provided outwardly from the outer surface of the main body of the connector.

[0013] Furthermore, the positioning protrusion is disposed between the limiting ring and the external thread, with one end of the positioning protrusion connected to the limiting ring and the other end of the positioning protrusion connected to the external thread.

[0014] Furthermore, one end of the water guide pipe is connected to the water pump pipe of the water storage tank, and the other end of the water guide pipe is connected to the upper or lower flush port of the toilet.

[0015] Furthermore, a contact plane is provided on the first barb, the contact plane being arranged along the direction of the water guide pipe. A guide portion is provided near the edge of the connector body on the contact plane, the guide portion gradually inclined from the edge of the contact plane towards the centerline of the water guide pipe. By providing a contact plane on the first barb, friction is increased, the sealing degree is improved, and the load-bearing pressure of the anti-siphon connector is increased when connecting the water pipe.

[0016] Furthermore, a clearance space is provided between the cylindrical protrusion and the limiting ring for the hose to be assembled on the outer surface of the cylindrical protrusion.

[0017] Furthermore, the length of the cylindrical protrusion is greater than the radial length of the limiting ring, facilitating hose assembly.

[0018] Furthermore, the water guide pipe is arranged axially inside the main body of the connector.

[0019] Compared to existing technologies, the beneficial effects of this utility model embodiment are as follows: An anti-siphon connector for a toilet includes a connector body, which is used to connect the water pump pipe of the water tank and / or the toilet's upper flush outlet and / or lower flush outlet. A water guide pipe is provided inside the connector body, and an anti-siphon channel is provided on the connector body. One end of the anti-siphon channel is connected to the water guide pipe, and the other end of the anti-siphon channel is connected to the outside air. By placing the anti-siphon connector in the toilet's water tank, the anti-siphon channel within the connector facilitates pressure balance between the toilet's upper flush outlet or lower flush outlet and the outside air, thus achieving an anti-siphon effect. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the anti-siphon connector according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a front view of the anti-siphon connector according to Embodiment 1 of this utility model;

[0022] Figure 3 This is a left view of the anti-siphon connector according to Embodiment 1 of this utility model;

[0023] Figure 4 This is a cross-sectional view of the anti-siphon connector of Embodiment 2 of this utility model;

[0024] Figure 5 This is a front view of the anti-siphon connector of Embodiment 2 of this utility model;

[0025] Figure 6 This is a left view of the anti-siphon connector of Embodiment 2 of this utility model;

[0026] Figure 7 This is a schematic diagram showing the installation status of the anti-siphon connector in Embodiment 1 and Embodiment 2 of this utility model.

[0027] Figure label:

[0028] 10-Connector body, 11-Cylindrical protrusion, 12-Limiting ring, 13-First barb, 14-External thread, 15-Positioning protrusion, 16-Second barb, 20-Water guide pipe, 30-Anti-siphon channel, 31-Ventilation hole. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0031] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0032] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0033] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0034] In the embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0036] Example 1:

[0037] Figure 1 This is a cross-sectional view of the anti-siphon connector according to Embodiment 1 of this utility model. Figure 2 This is a front view of the anti-siphon connector according to Embodiment 1 of this utility model. Figure 3 This is a left view of the anti-siphon connector according to Embodiment 1 of this utility model, with reference to... Figures 1 to 3An anti-siphon connector for a toilet includes a connector body 10, which connects the water pump pipe of the water tank to the toilet flush outlet. The connector body 10 has a water guide pipe 20 inside and an anti-siphon channel 30 on it. One end of the anti-siphon channel 30 is connected to the water guide pipe 20, and the other end is connected to the outside air to balance the air pressure between the toilet flush outlet and the outside air, thereby preventing the toilet flush outlet from generating a siphon effect.

[0038] Specifically, one end of the water guide pipe 20 is connected to the water pump pipe of the toilet tank, and the other end of the water guide pipe is connected to the flush port of the toilet, so that the water in the water pump pipe reaches the flush port of the toilet through the water guide pipe 20.

[0039] In some optional embodiments, a limiting ring 12 protruding from the inside to the outside is provided on the outer wall of the connector body 10. The limiting ring 12 is provided intermittently or continuously on the outer wall of the connector body 10. The limiting ring 12 is used to limit the connector body 10 to the toilet tank.

[0040] Furthermore, an external thread 14 is provided on the side near the limiting ring 12, and the main body 10 of the connector is connected to the flush port of the toilet through the external thread 14.

[0041] Specifically, a positioning protrusion 15 is provided on the main body 10 of the connector. The positioning protrusion 15 protrudes outward from the outer surface of the main body 10 of the connector and is located between the limiting ring 12 and the external thread 14. One end of the positioning protrusion 15 is connected to the limiting ring 12, and the other end of the positioning protrusion 15 is connected to the external thread 14. This facilitates the positioning of the main body 10 of the connector on the toilet tank.

[0042] In some optional embodiments, a cylindrical protrusion 11 extends radially outward from the middle of the connector body 10, above the limiting ring 12. One or more sets of anti-siphon channels 30 are provided, each set located within the cylindrical protrusion 11. The multiple sets of anti-siphon channels 30 are either independent of or interconnected with each other.

[0043] Preferably, a clearance space is provided between the cylindrical protrusion 11 and the limiting ring 12 for the hose to be assembled on the outer surface of the cylindrical protrusion 11. The length of the cylindrical protrusion 11 is greater than the radial length of the limiting ring 12. This facilitates the assembly of the hose.

[0044] Specifically, at least two vent holes 31 are provided at one end of the cylindrical protrusion 11 and on the side wall of the connector body 10. A hollow cylindrical cavity is provided inside the cylindrical protrusion 11. The hollow cylindrical cavity and the vent holes 31 form an anti-siphon channel 30. By providing at least two vent holes 31, the anti-siphon response efficiency of the anti-siphon connector is higher, and its anti-siphon effect on the toilet flush nozzle is better.

[0045] In some alternative embodiments, a first barb 13 is provided near the top of the connector body 10. The first barb 13 protrudes outward from the outer wall of the connector body 10 and is used to snap into the water pump pipe on the toilet tank to prevent the connector body 10 from detaching from the water pump pipe on the toilet tank when flushing.

[0046] In some alternative embodiments, a contact plane portion is provided on the first barb 13, the contact plane being positioned along the direction of the water guide pipe 20. A guide portion is provided near the edge of the connector body 10 on the contact plane portion, the guide portion gradually inclined from the edge of the contact plane portion toward the centerline of the water guide pipe 20. By providing a contact plane portion on the first barb 13, friction is increased, the sealing degree is improved, and the load-bearing pressure of the anti-siphon connector is increased when connecting the water pipe.

[0047] A second barb 16 is provided at the bottom of the connector body 10. A contact plane is provided on the second barb 16. The contact plane is provided along the direction of the water pipe 20. A guide is provided near the edge of the connector body 10 on the contact plane. The guide is gradually inclined from the edge of the contact plane toward the center line of the water pipe 20, so that the second barb 16 matches and connects with the toilet flush port.

[0048] In some alternative embodiments, the connector body 10 is cylindrical, and a water guide pipe 20 is provided axially inside the connector body 10. The connector body 10, the cylindrical protrusion 11, the limiting ring 12, and the first barb 13 are integrally formed.

[0049] Example 2:

[0050] Figure 4 This is a cross-sectional view of the anti-siphon connector of Embodiment 2 of this utility model. Figure 5 This is a front view of the anti-siphon connector of Embodiment 2 of this utility model. Figure 6 This is a left view of the anti-siphon connector of Embodiment 2 of this utility model, with reference to... Figures 1 to 6 The difference between Embodiment 2 and Embodiment 1 is that an external thread 14 is provided on the side near the limiting ring 12. A connector body 10 is provided along the direction of the water guide pipe 20, and is connected to the toilet flush port via the external thread 14. One end of the water guide pipe 20 is connected to the water pump pipe of the toilet tank, and the other end is connected to the toilet flush port, allowing water from the water pump pipe to reach the toilet flush port through the water guide pipe 20. The anti-siphon channel 30 connects the water guide pipe 20 to the outside air, ensuring pressure balance between the toilet flush port and the outside air, and preventing a siphon effect from occurring at the toilet flush port.

[0051] Figure 7These are schematic diagrams showing the installation status of the anti-siphon connectors in Embodiments 1 and 2 of this utility model, with reference to... Figure 7 In Embodiment 1, the anti-siphon connector 1 is connected to the water pump pipe on the toilet tank and the toilet's top flush outlet, respectively. In Embodiment 2, the anti-siphon connector 2 is connected to the water pump pipe on the toilet tank and the toilet's bottom flush outlet, respectively. The connector body has a water guide pipe inside and an anti-siphon channel on its body. One end of the anti-siphon channel is connected to the water guide pipe, and the other end is connected to the outside air. The anti-siphon connector is installed in the toilet tank. Through the anti-siphon channel, it balances the air pressure between the toilet's top flush outlet or bottom flush outlet and the outside air, thus preventing siphoning.

[0052] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An anti-siphon fitting for a toilet comprising a fitting body for connecting a water storage tank to a pump conduit and / or an upper bowl and / or a lower bowl of a toilet, characterised in that, The connecting piece body is internally provided with a water guide pipe, and the connecting piece body is provided with an anti-siphon channel, one end of the anti-siphon channel is communicated with the water guide pipe, and the other end of the anti-siphon channel is communicated with external air.

2. Anti-siphon fitting for a toilet according to claim 1, characterized in that The connecting piece body is internally provided with a water guide pipe, and the connecting piece body is provided with an anti-siphon channel, one end of the anti-siphon channel is communicated with the water guide pipe, and the other end of the anti-siphon channel is communicated with external air.

3. Anti-siphon fitting for a toilet according to claim 2, characterized in that The outer wall of the connecting piece body is provided with a limiting ring which protrudes from inside to outside, and the limiting ring is intermittently or continuously arranged on the outer wall of the connecting piece body.

4. Anti-siphon connection for a toilet according to any one of claims 1 to 3, characterized in that A first barb is arranged near the top end of the connecting piece body, and the first barb is arranged outwardly protruding from the outer wall of the connecting piece body.

5. An anti-siphon fitting for a toilet according to claim 3, characterised in that, An external thread is arranged on one side near the limiting ring, and the connecting piece body is connected with the upper flushing opening and / or the lower flushing opening of the closestool through the external thread.

6. An anti-siphon adapter for use with a toilet according to claim 3, wherein, The cylindrical protrusion is arranged above the limiting ring, and the anti-siphon channel is arranged in one or more groups, and the multiple groups of anti-siphon channels are arranged inside the cylindrical protrusion.

7. An anti-siphon fitting for a toilet according to claim 5, characterized in that A positioning protrusion is arranged on the connecting piece body, and the positioning protrusion is arranged outwardly protruding from the outer surface of the connecting piece body.

8. Anti-siphon fitting for a toilet according to claim 7, characterized in that The positioning protrusion is arranged between the limiting ring and the external thread, one end of the positioning protrusion is connected with the limiting ring, and the other end of the positioning protrusion is connected with the external thread.

9. Anti-siphon fitting for a toilet according to claim 1 or 2, characterized in that, One end of the water guide pipe is communicated with the water pump pipe of the water storage tank, and the other end of the water guide pipe is communicated with the upper flushing opening or the lower flushing opening of the closestool.

10. An anti-siphon fitting for a toilet according to claim 4, characterized in that, A contact flat portion is arranged on the first barb, the contact flat portion is arranged along the direction in which the water guide pipe extends, a guide portion is arranged near the edge of the connecting piece body at the contact flat portion, and the guide portion is arranged gradually inclined from the edge of the contact flat portion to the center line of the water guide pipe.

Images