Anti-return overflow drainage four-way pipe joint

Abstract

The utility model discloses an anti-return overflow drainage four-way pipe joint which comprises a pipe joint body, a through first inner hole is formed in the pipe joint body, and a first pipe connector and a second pipe connector which are communicated with the first inner hole are arranged at the two ends of the pipe joint body respectively. The pipe joint body is further provided with a first pipe joint and a second pipe joint which are communicated with the first inner hole, a non-return plug is installed at the position, close to the second pipe connector, in the pipe joint body and comprises a non-return plug body and a valve structure arranged on one side of the non-return plug body, and the inner diameter of the valve structure decreases progressively. The side, facing the second pipe connector, of the valve structure is provided with an opening capable of being opened and closed. The anti-return overflow drainage four-way pipe joint has good sealing performance and a reverse flow prevention function, and can effectively prevent sewage from returning, prevent odor of a sewer from returning and prevent mosquitoes from entering equipment; in addition, various types of pipe fittings can be connected, centralized drainage of the whole machine is achieved, and therefore the overall drainage efficiency, sanitation and safety of the direct drinking water equipment are guaranteed, and user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anti-returning drainage four-way pipe joint, belong to pipe joint technical field. BACKGROUND

[0002] With the improvement of living standards, people's concern for the quality and safety of daily drinking water is increasing. In schools, office buildings and other public areas, to meet the needs of people to obtain clean drinking water conveniently, the application of direct drinking water equipment becomes more and more widely. These devices not only improve the convenience of public life, but also become one of the important supporting facilities of modern public places.

[0003] However, the current widely used public direct drinking water equipment on the market has some shortcomings in drainage design. Specifically, the drainage system of most devices adopts a simple straight-through way of directly inserting the drainage pipe into the sewer pipe. Although this design meets the basic drainage needs to some extent, it can easily cause a series of problems. For example, due to the lack of effective water seal or backflow prevention device, when the water level in the sewer pipe rises or the pressure changes, sewage return overflow phenomenon is likely to occur, directly threatening the health and safety of direct drinking water equipment. In addition, the straight-through drainage pipe also easily allows the bad smell of the sewer to return to the inside of the direct drinking water equipment, causing the problem of return odor, not only affecting the user's experience, but also potentially threatening the user's health. At the same time, this design also cannot effectively block mosquitoes and other small insects from entering the inside of the direct drinking water equipment through the drainage pipe, increasing the risk of contamination inside the equipment.

[0004] In view of the above problems, there is an urgent need in the market for an anti-returning drainage four-way pipe joint that can solve the problems of sewage return overflow, return odor, and mosquito invasion at the same time. INVENTION CONTENTS

[0005] To solve the above problems, the utility model provides an anti-returning drainage four-way pipe joint. This anti-returning drainage four-way pipe joint not only has good sealing and backflow prevention functions, which can effectively prevent sewage return overflow, prevent sewer odor return, and prevent mosquitoes from entering the inside of the equipment. It also has a certain flexibility and versatility, can be connected to various types of pipe fittings, realize centralized drainage of the whole machine, and ensure the overall drainage efficiency and health and safety of direct drinking water equipment, improve user experience, and ensure drinking water safety.

[0006] The utility model provides a kind of anti-return drainage four-way pipe joint, including pipe joint body, first inner hole is provided with in the pipe joint body, the first inner hole is communicated with the first pipe interface and the second pipe interface of the two ends of the pipe joint body respectively, the pipe joint body is also provided with the first pipe joint and the second pipe joint of the first inner hole, the second pipe interface is installed with check plug in the pipe joint body close to the first inner hole, the check plug includes check plug body, and valve structure is arranged in the one side of the check plug body and inner diameter decreases, the side of the valve structure towards the second pipe interface is provided with the opening that can be opened and closed.

[0007] In an embodiment of the utility model, the valve structure includes two arc-shaped diaphragms, the two diaphragms are symmetrically arranged; one end of the two diaphragms is fixedly connected with the check plug body, and the other end of the two diaphragms is connected with each other and forms the opening.

[0008] In an embodiment of the utility model, the second inner hole is provided in the check plug, the first inner hole is communicated with the one end of the second inner hole away from the diaphragm, and the inner diameter of the one end of the second inner hole close to the diaphragm decreases.

[0009] In an embodiment of the utility model, the mounting groove is provided on the inner wall of the pipe joint body close to the second pipe interface, the one end of the check plug body away from the diaphragm is fixedly connected with the mounting boss, the outer diameter of the mounting boss is greater than the outer diameter of the check plug body, the mounting boss is embedded in the mounting groove, and is sealingly connected with the inner wall of the pipe joint body.

[0010] In an embodiment of the utility model, the outer wall of the pipe joint body is fixedly connected with the fixing ring, the fixing ring is fixedly connected with the fixing pipe, the outer wall of the pipe joint body is also sleeved with the mounting plate, and the mounting plate includes the third inner hole sleeved on the outer wall of the pipe joint body and the mounting hole butt-jointed with the fixing pipe.

[0011] In an embodiment of the utility model, the first pipe joint is connected with the wastewater electromagnetic valve in the water preparation system of the water supply equipment through pipeline, for discharging the wastewater generated when the water preparation system of the water supply equipment prepares water.

[0012] In an embodiment of the utility model, the second pipe joint is connected with the hot water tank drainage electromagnetic valve of the water supply equipment through pipeline, for discharging the stored water in the hot water tank.

[0013] In an embodiment of the utility model, the first pipe interface is connected with the water collecting disc below the water receiving part of the water supply equipment through pipeline, for discharging the water collected by the water collecting disc.

[0014] In one embodiment of this utility model, the second pipe interface is connected to the inlet of an external sewer pipe via a pipe, and is used to collect all the external drainage from inside the drinking water equipment and discharge it into the sewer pipe.

[0015] In one embodiment of this utility model, the outer wall of the pipe connector body near the first pipe interface is provided with a first groove, the outer wall of the first pipe connector is provided with a second groove, and the outer wall of the second pipe connector is provided with a plurality of third grooves.

[0016] This utility model has the following beneficial effects:

[0017] This utility model provides a backflow prevention drainage four-way pipe connector. Through a check plug with an openable and closable opening, it achieves centralized and smooth drainage of the entire unit while simultaneously providing excellent sealing and backflow prevention through the one-way channel structure of the check plug. This effectively prevents sewage backflow, sewer odors, and insects from entering the equipment. Furthermore, this backflow prevention drainage four-way pipe connector connects to different external drainage sections of the drinking water equipment via a first pipe connector, a second pipe connector, and a first pipe interface, and connects to the drain pipe via a second pipe interface. This allows the connector to accept various types of pipe fittings, offering strong adaptability, flexibility, and versatility. It enables centralized drainage of the entire unit, ensuring all external drainage from the drinking water equipment flows into the drain pipe, thereby ensuring the overall drainage efficiency and hygiene safety of the direct drinking water equipment, improving user experience, and guaranteeing drinking water safety. Attached Figure Description

[0018] Figure 1 A perspective view of the anti-backflow drainage four-way pipe joint provided for this utility model.

[0019] Figure 2 A perspective view of the pipe connector body provided by this utility model.

[0020] Figure 3 A cross-sectional view of the anti-backflow drainage four-way pipe joint provided by this utility model, excluding the mounting plate.

[0021] Figure 4 A perspective view of the check plug provided by this utility model.

[0022] In the diagram: 1. Pipe connector body; 11. First pipe interface; 111. First groove; 12. First pipe connector; 121. Second groove; 13. Second pipe connector; 131. Third groove; 14. Fixing ring; 141. Fixing pipe; 15. Second pipe interface; 16. Mounting groove; 17. First inner hole; 2. Check plug; 21. Opening; 22. Valve structure; 221. Diaphragm; 23. Check plug body; 24. Mounting boss; 25. Second inner hole; 3. Mounting plate; 31. Third inner hole; 32. Mounting hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are some but not all of the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the utility model.

[0024] In the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements or the interaction relationship of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0025] In the utility model, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a kind of anti-return drainage four-way pipe joint, including pipe joint body 1, first inner hole 17 is arranged in the pipe joint body 1, the first pipe interface 11 and second pipe interface 15 that the two ends of the pipe joint body 1 are respectively provided with and communicate the first inner hole 17, the pipe joint body 1 is also provided with the first pipe joint 12 and the second pipe joint 13 that communicate the first inner hole 17, the check plug 2 is installed in the pipe joint body 1 close to the second pipe interface 15, the check plug 2 includes check plug body 23 and the valve structure 22 of the inner diameter decreasing that is arranged in one side of the check plug body 23, the valve structure 22 is provided with the openable and closable opening 21 in the side towards the second pipe interface 15.

[0027] In some embodiments, the valve structure 22 comprises two arc-shaped diaphragms 221, which are symmetrically arranged; one end of each diaphragm 221 is fixedly connected to the check plug body 23, and the other end of each diaphragm 221 is connected to each other and forms the opening 21.

[0028] Preferably, the diaphragm 221 and the check plug body 23 can be an integral structure, and the materials thereof can be selected from silica gel.

[0029] In the present embodiment, the two arc-shaped diaphragms 221 are symmetrically arranged and one side is provided with an openable and closable opening 21. This structure design makes the check plug 2 a one-way channel structure. When the anti-backflow drainage four-way pipe joint drains water from the second pipe interface 15, the water flow extrudes the inner wall of the arc-shaped diaphragm 221, so that the two arc-shaped diaphragms 221 are opened, thereby opening the opening 21 to smoothly realize drainage. When the sewage pipe connected by the second pipe interface 15 backflows, the backflow water extrudes the outer wall of the arc-shaped diaphragm 221, so that the two arc-shaped diaphragms 221 are closed, thereby closing the opening 21 to prevent sewage from flowing in. Thus, the anti-backflow drainage four-way pipe joint realizes good sealing and backflow prevention functions through the check plug 2 with the openable and closable opening 21, while realizing the centralized and smooth drainage of the whole machine. It can effectively prevent sewage backflow, prevent sewer odor from returning, and prevent mosquitoes from entering the internal equipment.

[0030] Further, the check plug 2 is provided with a second inner hole 25, one end of the second inner hole 25 away from the diaphragm 221 is in communication with the first inner hole 17, and the inner diameter of the end of the second inner hole 25 close to the diaphragm 221 decreases.

[0031] Further, the inner wall of the pipe joint body 1 close to the second pipe interface 15 is provided with a mounting groove 16, one end of the check plug body 23 away from the diaphragm 221 is fixedly connected with a mounting boss 24, the outer diameter of the mounting boss 24 is greater than the outer diameter of the check plug body 23, the mounting boss 24 is embedded in the mounting groove 16, and is sealingly connected with the inner wall of the pipe joint body 1.

[0032] In the present embodiment, the check plug 2 is sealingly mounted in the mounting groove 16 of the pipe joint body 1 through the mounting boss 24. Since the mounting boss 24 is sealingly connected with the inner wall of the pipe joint body 1, the anti-backflow drainage four-way pipe joint has good sealing and backflow prevention functions, which avoids sewage flowing into the anti-backflow drainage four-way pipe joint from the gap between the outer wall of the check plug 2 and the inner wall of the pipe joint body 1, effectively prevents sewage backflow, prevents sewer odor from returning, and prevents mosquitoes from entering the internal equipment. The check plug body 23 and the mounting boss 24 can also be an integral structure.

[0033] In some embodiments, the outer wall of the pipe joint body 1 is fixedly connected with a fixing ring 14, the fixing ring 14 is fixedly connected with a fixing pipe 141, and the outer wall of the pipe joint body 1 is further sleeved with a mounting plate 3, the mounting plate 3 comprises a third inner hole 31 sleeved on the outer wall of the pipe joint body 1 and a mounting hole 32 in abutment with the fixing pipe 141.

[0034] In the embodiment, the fixing ring 14 and the mounting plate 3 are fixedly mounted together by using fasteners to pass through the fixing pipe 141 of the fixing ring 14 and the mounting hole 32 of the mounting plate 3, so that the entire anti-backflow drainage four-way pipe joint is fixedly mounted on the mounting plate 3, which is convenient and fast.

[0035] In some embodiments, the first pipe joint 12 is connected with a wastewater electromagnetic valve in a water preparation system of a water preparation device through a pipeline, and is used for draining wastewater generated when the water preparation system of the water preparation device prepares water.

[0036] In the embodiment, the first pipe joint 12 can be connected with the wastewater electromagnetic valve in the water preparation system of the water preparation device by using a pipeline made of polyethylene material.

[0037] In some embodiments, the second pipe joint 13 is connected with a hot water tank drainage electromagnetic valve of a water preparation device through a pipeline, and is used for draining stored water in the hot water tank.

[0038] In the embodiment, the second pipe joint 13 can be connected with the hot water tank drainage electromagnetic valve of the water preparation device by using a silica gel pipe.

[0039] In some embodiments, the first pipe interface 11 is connected with a water collecting disc below a water receiving part of a water preparation device through a pipeline, and is used for draining water collected by the water collecting disc.

[0040] In the embodiment, the first pipe interface 11 can be connected with the water collecting disc below the water receiving part of the water preparation device by using a plastic corrugated pipe.

[0041] In some embodiments, the second pipe interface 15 is connected with an inlet of an external sewer pipeline through a pipeline, and is used for collecting all external drainage water in the water preparation device to the sewer pipeline.

[0042] In the embodiment, the second pipe interface 15 can be connected with the inlet of the external sewer pipeline by using a plastic corrugated pipe.

[0043] Therefore, the anti-backflow drainage four-way pipe joint can be connected to various types of pipe fittings, has high adaptability, high flexibility, high versatility, can realize centralized drainage of the whole machine, can drain all external water of the water equipment into the sewer pipe, thereby ensuring the overall drainage efficiency and sanitary safety of the direct drinking water equipment, improving user experience, and ensuring drinking water safety.

[0044] Further, the outer wall of the pipe joint body 1 near the first pipe interface 11 is provided with a first groove 111, the outer wall of the first pipe joint 12 is provided with a second groove 121, and the outer wall of the second pipe joint 13 is provided with a plurality of third grooves 131.

[0045] In the embodiment, the first groove 111, the second groove 121, and the third groove 131 are used in cooperation with the clamp, the grooves are the positions where the clamp is tightened, and the grooves play a role in preventing the pipe from falling off. Specifically, when the pipe is sleeved on the outer wall of the first pipe interface 11, the first pipe joint 12, and the second pipe joint 13, the pipe is clamped in the groove by the clamp to prevent the pipe from falling off. Since the second pipe joint 13 is connected to the silica gel pipe, the silica gel pipe at the position of the second pipe joint 13 is more likely to fall off, and therefore a plurality of third grooves 131 are arranged on the outer wall of the second pipe joint 13 to increase the friction between the second pipe joint 13 and the silica gel pipe and to be fixed by the clamp being tightened, so that the clamp can clamp the silica gel pipe in the groove, and the anti-falling effect is further enhanced.

[0046] In summary, the anti-backflow drainage four-way pipe joint has good sealing performance and backflow prevention function, can effectively prevent sewage backflow, prevent sewer odor backflow, and prevent mosquitoes from entering the equipment interior, has certain flexibility and versatility, can be connected to various types of pipe fittings, realizes centralized drainage of the whole machine, thereby ensuring the overall drainage efficiency and sanitary safety of the direct drinking water equipment, improving user experience, and ensuring drinking water safety.

[0047] The principles and implementation modes of the utility model are described by applying specific embodiments in the present document, and the above embodiment description is only used to help understand the method and core idea of the utility model. It should be noted that, for ordinary skilled persons in the technical field, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A backflow resistant drain wye fitting, characterized by, The utility model provides a pipe joint, which comprises a pipe joint body (1) provided with a first through hole (17) therein, a first pipe joint (12) and a second pipe joint (13) communicating with the first through hole (17), a first pipe interface (11) and a second pipe interface (15) communicating with the first through hole (17) at two ends of the pipe joint body (1), and a check plug (2) mounted in the pipe joint body (1) near the second pipe interface (15).

2. A return resistant drainage four-way pipe joint according to claim 1, characterized in that The check plug (2) comprises a check plug body (23) and a valve structure (22) provided on one side of the check plug body (23) and decreasing in inner diameter.

3. A return-resistant drainage cross according to claim 2, characterized in that The valve structure (22) comprises two arc-shaped diaphragms (221) symmetrically arranged.

4. The anti-backflow drain four-way pipe joint according to claim 1, characterized in that, The check plug (2) is provided with a second through hole (25) therein, one end of the second through hole (25) away from the diaphragm (221) communicates with the first through hole (17), and the inner diameter of the second through hole (25) near the diaphragm (221) decreases.

5. The anti-backflow drain four-way pipe joint according to claim 1, characterized in that, The inner wall of the pipe joint body (1) is provided with a mounting groove (16) near the second pipe interface (15), one end of the check plug body (23) away from the diaphragm (221) is fixedly connected with a mounting boss (24), the outer diameter of the mounting boss (24) is greater than the outer diameter of the check plug body (23), the mounting boss (24) is embedded in the mounting groove (16), and the mounting boss (24) is in sealing connection with the inner wall of the pipe joint body (1).

6. A return-resistant drainage cross according to any one of claims 1-5, characterized in that The outer wall of the pipe joint body (1) is fixedly connected with a fixing ring (14), the fixing ring (14) is fixedly connected with a fixing pipe (141), the outer wall of the pipe joint body (1) is further sleeved with a mounting plate (3), and the mounting plate (3) comprises a third through hole (31) sleeved on the outer wall of the pipe joint body (1) and a mounting hole (32) in abutment with the fixing pipe (141).

7. A return-resistant drainage cross according to any one of claims 1-5, characterized in that The first pipe joint (12) is connected with a wastewater electromagnetic valve in a water preparation system of a water preparation device through a pipeline, and is used for discharging wastewater generated when water is prepared in the water preparation system.

8. A return resistant drainage tee according to any one of claims 1-5, characterized in that The second pipe joint (13) is connected with a hot water tank drainage electromagnetic valve of the water preparation device through a pipeline, and is used for discharging stored water in the hot water tank.

9. A return resistant drainage tee as defined in any one of claims 1-5, wherein, The first pipe interface (11) is connected with a water collecting disc below a water receiving part of the water preparation device through a pipeline, and is used for discharging water collected by the water collecting disc. The second pipe interface (15) is connected with an inlet of an external sewer pipeline through a pipeline, and is used for collecting all the external drainage water in the water preparation device and discharging the water into the sewer pipeline.

10. A return-resistant drainage cross according to any one of claims 1-5, characterized in that The outer wall of the pipe joint body (1) is provided with a first groove (111) near the first pipe interface (11), the outer wall of the first pipe joint (12) is provided with a second groove (121), and the outer wall of the second pipe joint (13) is provided with a plurality of third grooves (131).

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