A sewage anti-siphon structure

Abstract

The present invention discloses a sewage anti-siphon structure, comprising a main body, on which a water inlet pipe, a water passing pipe and a drain pipe are arranged in sequence in the direction of water flow; the water outlet end of the water inlet pipe is communicated with the water inlet end of the water passing pipe; the water outlet end of the water passing pipe is connected with the water inlet end of the drain pipe; the aperture of the water inlet end of the water passing pipe is larger than that of the water outlet end, the water outlet end of the water passing pipe is plugged into the water inlet end of the drain pipe, and the aperture of the water outlet end of the water passing pipe is smaller than that of the water inlet end of the drain pipe; an air intake channel is arranged between the water passing pipe and the drain pipe, and the structure can effectively reduce the noise generated when sewage is discharged.

Description

Technical Field

[0001] The invention relates to a sewage anti-siphon structure. Background Art

[0002] In current life, people use water purification equipment in the kitchen, such as a matching RO machine and a water purification faucet. After the water is filtered by the RO machine, it is divided into two streams, one of which flows to the water purification faucet for us to use, and the other is sewage, which needs to be discharged. During use, the sewage water flow in the prior art will be sprayed and impacted back and forth in the water containing cavity between the drain pipe and the jet pipe to form turbulence, resulting in high noise and poor sewage discharge effect. Summary of the invention

[0003] In order to solve the above technical problems, the object of the present invention is to provide a sewage anti-siphon structure.

[0004] The present invention is achieved through the following technical solutions:

[0005] A sewage anti-siphon structure comprises a main body, on which a water inlet pipe, a water passing pipe and a drain pipe are sequentially arranged in the direction of water flow;

[0006] The water outlet end of the water inlet pipe is connected to the water inlet end of the water pipe; the water outlet end of the water pipe is connected to the water inlet end of the drain pipe;

[0007] The aperture of the water inlet end of the water pipe is larger than that of the water outlet end, the water outlet end of the water pipe is plugged into the water inlet end of the drain pipe, and the aperture of the water outlet end of the water pipe is smaller than that of the water inlet end of the drain pipe;

[0008] An air intake passage is arranged between the water pipe and the drain pipe.

[0009] In the embodiment of the present invention, the water pipe is provided with a speed-increasing section whose aperture gradually decreases along the water flow direction.

[0010] In the embodiment of the present invention, the water pipe is further provided with a horizontal flow section with the same aperture, and the speed-up section is located at the front end of the water flow of the horizontal flow section.

[0011] In the embodiment of the present invention, the aperture of the water outlet end of the water pipe is 0.25 to 0.5 times the aperture of the water inlet end of the drain pipe.

[0012] In the embodiment of the present invention, a shell is further included, the body is arranged in the shell, a cavity is formed between the shell and the body, the cavity can be connected with the air outside the shell, and the cavity is connected with the air inlet passage.

[0013] In the embodiment of the present invention, an air inlet is provided on the shell, and the air inlet is communicated with the cavity.

[0014] In the embodiment of the present invention, an air inlet nozzle is provided at the air inlet, and an outlet of the air inlet nozzle faces the air inlet channel.

[0015] In the embodiment of the present invention, a flange is provided around the air inlet nozzle, the flange is clamped between the shell and the body, the flange is provided with a clamping portion protruding toward the body, and the body is provided with a groove matching the clamping portion.

[0016] The sewage anti-siphon structure of the present invention has the following beneficial effects:

[0017] 1. Without increasing other costs, the existing structural defects can be effectively improved and the noise during sewage discharge can be reduced. The noise of the existing structure exceeds 80dB, while the noise generated by the structure of the present invention is less than 50dB;

[0018] 2. Through the direct connection between the water pipe and the drainage pipe, the existing need to set up an additional water chamber is improved, the occupied space required for the design is reduced, and the efficiency of sewage discharge is also increased. The existing structure is only 2.16L / min under a pressure of 60psi, while the structure of the present invention can reach 3.04L / min;

[0019] 3. The existing structure had the problem of water splashing to the outside, causing pollution and other safety hazards. After the improvement, there was no water splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This invention is a schematic diagram Figure 1 .

[0022] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0023] Figure 3 This invention is a schematic diagram Figure 2 .

[0024] Figure 4 yes Figure 3 A magnified schematic diagram of point B in the middle.

[0025] Figure 5 It is a partial schematic diagram of the main body in the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of 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. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. 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.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] Referring to the attached drawings of the specification, a sewage anti-siphon structure includes a body 10, on which an inlet pipe 11, a water pipe 12, and a drain pipe 13 are arranged in sequence in the direction of water flow; the sewage filtered from the purification equipment passes through the water pipe from the inlet pipe flow channel and is finally discharged from the drain pipe, which can be directly connected to the sewer. The outlet end of the inlet pipe is connected to the inlet end of the water pipe; the outlet end of the water pipe is connected to the inlet end of the drain pipe; the aperture of the inlet end of the water pipe is larger than the aperture of the outlet end, the outlet end of the water pipe is plugged into the inlet end of the drain pipe, and the aperture of the outlet end of the water pipe is smaller than the aperture of the inlet end of the drain pipe; an air intake channel 14 is arranged between the water pipe and the drain pipe; in the present invention, the aperture of the outlet end of the water pipe can be the smallest, and it is directly connected to the drain pipe, and the sewage does not pass through the water holding chamber in the prior art, but is directly discharged, which effectively improves the drainage efficiency and avoids the noise generated when the sewage impacts the side wall of the water holding chamber.

[0032] In a preferred embodiment of the present invention, the water pipe is provided with a speed-increasing section 121 whose aperture gradually decreases along the water flow direction. The water pipe is also provided with a horizontal flow section 122 with the same aperture, and the speed-increasing section is located at the front end of the water flow of the horizontal flow section, that is, as the aperture of the sewage flowing through the water pipe decreases, the speed of sewage discharge also increases accordingly.

[0033] When the present invention is in use, the aperture of the water outlet end of the water pipe is 0.25 to 0.5 times the aperture of the water inlet end of the drain pipe, preferably 1 / 4, 1 / 3, or 1 / 2 times.

[0034] Referring to the attached drawings of the specification, during the use of the present invention, a horizontal section 20 is formed between the water inlet pipe and the water pipe. Sewage enters from the lower end of the water inlet pipe and flows upward to the horizontal section, then flows from the horizontal section to the water inlet end of the drainage section, then begins to flow downward to the drainage pipe for discharge. The water outlet end of the water pipe is located lower than the water inlet end of the drainage pipe. In one embodiment, the aperture at the water outlet end of the water pipe is the smallest, and the flow rate of the sewage there is the largest, which will form a negative pressure, so that air is sucked from the air inlet channel. The air entering flows along the drainage pipe, accelerating the discharge of sewage, thereby achieving the purpose of anti-siphoning. Similarly, the height (capacity) of the horizontal section can be increased, which can improve the ability to handle fluids and increase the discharge flow.

[0035] More specifically, the present invention also includes a shell 30, the body is arranged in the shell, a cavity 40 is formed between the shell and the body, the cavity is not used for and no sewage will flow into, the cavity can be connected to the air outside the shell, and the cavity is connected to the air inlet channel.

[0036] Preferably, the housing is provided with an air inlet 31, which is in communication with the cavity. The air inlet is provided with an air inlet nozzle 40, the outlet of which faces the air inlet channel, so that the air entering the cavity can be guided to improve the drainage efficiency.

[0037] More specifically, a flange 41 is provided around the air inlet nozzle, the flange is clamped between the shell and the body, a clamping portion 42 protruding toward the body is provided on the flange, and a groove 15 matching with the clamping portion is provided on the body.

[0038] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not depart from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A sewage anti-siphon structure, comprising a body, It is characterized in that The main body is provided with a water inlet pipe, a water flow pipe and a drain pipe in sequence in the direction of water flow; The water outlet end of the water inlet pipe is connected to the water inlet end of the water pipe; the water outlet end of the water pipe is connected to the water inlet end of the drain pipe; The aperture of the water inlet end of the water pipe is larger than that of the water outlet end, the water outlet end of the water pipe is plugged into the water inlet end of the drain pipe, and the aperture of the water outlet end of the water pipe is smaller than that of the water inlet end of the drain pipe; An air intake passage is provided between the water pipe and the drain pipe; The water pipe is provided with a speed-increasing section whose aperture gradually decreases along the water flow direction; The water pipe is also provided with a horizontal flow section with the same aperture, and the speed-up section is located at the front end of the water flow of the horizontal flow section.

2. A sewage anti-siphon structure according to claim 1, It is characterized in that The aperture of the water outlet end of the water pipe is 0.25 to 0.5 times the aperture of the water inlet end of the drain pipe.

3. A sewage anti-siphon structure according to claim 2, It is characterized in that It also includes a shell, the body is arranged in the shell, a cavity is formed between the shell and the body, the cavity can be connected with the air outside the shell, and the cavity is connected with the air inlet channel.

4. A sewage anti-siphon structure according to claim 3, It is characterized in that The shell is provided with an air inlet, which is communicated with the cavity.

5. A sewage anti-siphon structure according to claim 4, It is characterized in that An air inlet nozzle is arranged at the air inlet, and an outlet of the air inlet nozzle faces the air inlet passage.

6. A sewage anti-siphon structure according to claim 5, It is characterized in that A flange is arranged around the air inlet nozzle, the flange is clamped between the shell and the body, a clamping portion protruding toward the body is arranged on the flange, and a groove matching with the clamping portion is arranged on the body.

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