An overflow system to isolate air

Abstract

The present invention discloses an overflow system for isolating air, comprising an overflow cap and a float. The overflow cap comprises a drainage part and a water inlet part fixed above the drainage part, and a drainage channel is arranged inside the drainage part. The water inlet part is an annular support body, the bottom of which is fixed on the outer wall surface of the drainage part, and a water inlet is provided on the side of the annular support body. The inner wall surface of the annular support body is enclosed to form an accommodating space, and the float is arranged in the accommodating space and can move up and down, and the bottom of the float is sealed with the top of the drainage channel. A limiting structure for limiting the travel of the float is provided on the top of the annular support body. Under normal circumstances, the float is sealed with the drainage channel due to the action of gravity, isolating the drainage port of the drainage valve from the outside air, and the outside air cannot enter the drainage port. The drainage port is almost in a full pipe water state, and the drainage speed is greatly improved through the siphon effect; when the water level overflows the float to a certain height, the float floats up and opens the drainage channel to achieve overflow.

Description

Technical Field

[0001] The invention relates to the field of bathrooms, and in particular to an overflow system for isolating air. Background Art

[0002] In the prior art, the overflow pipe on the side of the toilet drain valve is connected to the drain port at the bottom of the drain valve. In the normal water-stopping state, the outside air is connected to the drain port of the drain valve base through the overflow pipe. When overflow occurs, water flows from the overflow pipe to the drain port of the drain valve base and enters the toilet pipe. When the drain valve is opened, water flows out through the drain port of the drain valve base. During normal use, since the drain port of the drain valve base is connected to the outside air through the overflow pipe channel, negative pressure will be generated in the drain channel when draining. Under the action of the outside atmospheric pressure, air will be mixed into the drain port of the drain valve base, so that the drain channel is not in a full pipe water state, thereby reducing the drainage speed. Summary of the invention

[0003] In view of the above problems, an object of the present invention is to provide an air-isolating overflow system, which can isolate external air from entering the drain port of the drain valve, thereby accelerating the drainage speed of the drain valve.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] An overflow system for isolating air includes an overflow cap and a float. The overflow cap includes a drainage portion and a water inlet portion fixed above the drainage portion. The drainage portion is provided with a drainage channel that passes through from top to bottom. The water inlet portion is an annular support body, the bottom of which is fixed on the outer wall of the drainage portion, and the side of the annular support body is provided with a water inlet for communicating with the drainage channel. The inner wall surface of the annular support body encloses a containing space, the float is provided in the containing space and can move up and down, and the bottom of the float is sealed and matched with the top of the drainage channel. The top of the annular support body is provided with a limiting structure for limiting the floating stroke of the float.

[0006] Furthermore, the annular support body includes a plurality of guide ribs evenly arranged along the circumference of the outer wall surface of the drainage portion and a fixing ring fixed on the top of the guide ribs, and the limiting structure is fixed on the inner wall surface of the fixing ring.

[0007] Preferably, in order to increase the size of the accommodating space so that a larger float can be placed inside the accommodating space to ensure that the float can better seal the top of the drainage channel, the bottom of the guide rib is fixedly connected to the outer wall of the drainage part through a connecting part.

[0008] Preferably, in order to enable the bottom of the floating body to fit tightly with the top of the drainage channel to achieve an optimal sealing effect, the connection portion is located lower than the top end surface of the drainage portion.

[0009] Furthermore, the limiting structure includes a plurality of semicircular limiting bosses evenly arranged along the circumference of the inner wall surface of the fixing ring.

[0010] Among them, the outer wall surface of the floating body is provided with a plurality of paving grooves adapted to the shape of the limiting bosses at positions corresponding to the limiting bosses, and the paving grooves penetrate the floating body from top to bottom.

[0011] Furthermore, a guide pipe for connecting the water supply pipe and the drainage channel is fixedly provided on the side wall of the drainage part.

[0012] Furthermore, the guide pipe is bent upward inside the drainage channel to form a water storage branch pipe, and a water supply elbow joint is detachably installed on the top of the water storage branch pipe, and the water outlet of the water supply elbow joint is tilted downward. When the overflow system is replenished with water, a water storage bay is formed between the water supply elbow joint, the water storage branch pipe, the guide pipe and the water supply pipe, and the water stored in the water storage bay can isolate the outside air from entering the overflow port.

[0013] In one embodiment, the float is a solid float.

[0014] In another embodiment, the float is a pontoon, the top or bottom of the pontoon is open and the other end is closed, a sealing gasket mounting portion is fixedly provided at the bottom of the pontoon, and a sealing gasket for sealingly cooperating with the top of the drainage channel is fixedly installed on the sealing gasket mounting portion.

[0015] The present invention has the following beneficial effects:

[0016] 1. Under normal circumstances, the float cooperates with the water inlet pipe seal due to gravity, isolating the drain outlet of the drain valve from the outside air, and the outside air cannot enter the drain outlet. The drain outlet is almost full of water, and the drainage speed is greatly increased through the siphon effect. When the water level exceeds a certain height of the float, the float floats up and opens the drainage channel to achieve overflow.

[0017] 2. By arranging a guide pipe, a water storage branch pipe and a detachable water supply elbow joint on the side of the drainage part, when the overflow valve is replenished with water, a water storage bay is formed between the water supply elbow joint, the water storage branch pipe, the guide pipe and the water supply pipe. The water stored in the water storage bay can isolate the outside air from entering the overflow port, thereby preventing the air from running into the drain port of the drain valve and causing the drainage speed to decrease. At the same time, the water supply elbow joint can have different inner diameter specifications to achieve different water supply rates. The water supply elbow joint with a suitable inner diameter can be selected according to the amount of water replenishment in the toilet. The outlet of the water supply elbow joint is tilted downward to prevent the float from being washed away when the replenishment water flow is too large, thereby causing the seal to fail. At the same time, the existence of the water supply elbow joint can make the water storage effect of the water storage bay better.

[0018] 3. By setting a limiting boss on the inner wall of the fixing ring and a clearance groove on the outer wall of the floating body, the floating body is installed in the accommodating space through the clearance groove and then rotated to a certain angle. When the floating body floats up, the limiting boss can limit the floating body to prevent the floating body from falling off from the accommodating space during transportation or assembly of the product.

[0019] 4. The overflow system of the present invention can be installed in the overflow pipe of the drain valve to achieve the functions of isolating air and overflowing, or it can be installed separately at the bottom of the water tank to achieve the functions of overflowing and replenishing water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the overflow system of Example 1.

[0021] Figure 2 for Figure 1 Exploded view of parts.

[0022] Figure 3 Schematic diagram of the internal structure of the overflow system of Example 1.

[0023] Figure 4 The working principle diagram of the overflow system of the first embodiment, wherein Figure 4 a is a schematic diagram of the solid float when it is closed. Figure 4 b is a schematic diagram of the solid float being opened.

[0024] Figure 5 Schematic diagram of the overflow system of Example 1 when installed on the overflow pipe of the drain valve Figure 1 .

[0025] Figure 6 Schematic diagram of the overflow system of Example 1 when installed on the overflow pipe of the drain valve Figure 2 .

[0026] Figure 7 Schematic diagram of the overflow system of Example 1 when it is installed alone at the bottom of the water tank Figure 1 .

[0027] Figure 8 The overflow system of Example 1 is installed alone at the bottom of the water tank. Figure 2 .

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the overflow system of Example 2.

[0029] Fig.10 for Fig. 9 Exploded view of parts.

[0030] Fig.11 Schematic diagram of the internal structure of the overflow system of Example 2.

[0031] Fig.12 It is a schematic diagram of the three-dimensional structure of the overflow system of Example 3.

[0032] Fig.13 for Fig.12 Exploded view of parts.

[0033] Fig.14 Schematic diagram of the internal structure of the overflow system of Example 3.

[0034] Fig.15 This is a schematic diagram of the structure of the buoy.

[0035] Fig.16 Another structural schematic diagram of the buoy is shown in FIG.

[0036] Fig.17 for Fig.16 Schematic diagram of the cross-sectional structure.

[0037] Fig.18 It is a schematic diagram of the three-dimensional structure of the overflow system of Example 4.

[0038] Fig.19 for Fig.18 Exploded view of parts.

[0039] Fig. 20 Schematic diagram of the internal structure of the overflow system of Example 4.

[0040] Explanation of the main component symbols: 1. Overflow cap; 10. Accommodating space; 100. Water inlet; 101. Guide rib; 102. Fixing ring; 103. Connecting part; 104. Limiting boss; 105. Guide pipe; 106. Water storage branch pipe; 107. Water supply elbow joint; 11. Drainage part; 110. Drainage channel; 12. Water inlet part; 21. Solid float; 210. Make way groove; 22. Float; 220. Installation part; 221. Make way groove; 3. Water inlet valve; 30. Water supply pipe; 4. Drainage valve; 40. Overflow pipe; 5. Water tank; 6. Sealing pad. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0042] Embodiment 1

[0043] like Figure 1-3 As shown, an overflow system for isolating air includes an overflow cap 1 and a float. The float in this embodiment is a solid float 21. The overflow cap 1 includes a drainage portion 11 and a water inlet portion 12 fixed above the drainage portion 11. The drainage portion 11 is provided with a drainage channel 110 that passes through from top to bottom. The water inlet portion 12 is an annular support body, the bottom of which is fixed on the outer wall surface of the drainage portion 11, and the side of the annular support body is provided with a water inlet 100 for communicating with the drainage channel 110. The inner wall surface of the annular support body encloses a containing space 10. The solid float 21 is arranged in the containing space 10 and can move up and down. The bottom of the solid float 21 is sealed and matched with the top of the drainage channel 110. A limiting structure for limiting the floating stroke of the solid float 21 is provided at the top of the annular support body.

[0044] The annular support body includes a plurality of guide ribs 101 evenly arranged along the circumference of the outer wall of the drainage portion 11 and a fixing ring 102 fixed to the top of the guide ribs 101. The bottom of the guide ribs 101 is fixedly connected to the outer wall of the drainage portion 11 through a connecting portion 103. The position of the connecting portion 103 is lower than the top end surface of the drainage portion 11. The guide ribs 101, the connecting portion 103, the fixing ring 102 and the drainage portion 11 are an integrally formed structure.

[0045] The limiting structure is fixed on the inner wall surface of the fixing ring 102, and the limiting structure includes a plurality of semicircular limiting bosses 104 uniformly arranged along the circumference of the inner wall surface of the fixing ring 102. The outer wall surface of the solid float 21 is provided with a plurality of clearance grooves 210 matching the shape of the limiting bosses 104 at positions corresponding to the plurality of limiting bosses 104, and the clearance grooves 210 penetrate the solid float 21 from top to bottom. When installing the solid float 21, first align the clearance grooves 210 on the solid float 21 with the limiting bosses 104, install the solid float 21 into the accommodating space 10, and then rotate it by a certain angle, so that when the solid float 21 floats, the limiting bosses 104 can limit it.

[0046] A guide pipe 105 for connecting the water supply pipe 30 and the drainage channel 110 is fixedly provided on the side wall of the drainage part 11. The guide pipe 105 is bent upward inside the drainage channel 110 to form a water storage branch pipe 106, and a water supply elbow joint 107 is detachably installed on the top of the water storage branch pipe 106, and the water outlet of the water supply elbow joint 107 is tilted downward. When the overflow system is replenished with water, a water storage bay is formed between the water supply elbow joint 107, the water storage branch pipe 106, the guide pipe 105 and the water supply pipe 30, and the water stored in the water storage bay can isolate the outside air from entering the overflow port.

[0047] like Figure 4 The figure shows the working principle of the overflow system of this embodiment. Under normal circumstances, the solid float 21 is in a closed state due to gravity. The bottom of the solid float 21 is sealed with the top of the drainage channel 110, isolating the drainage port of the drainage valve from the outside air. At the same time, due to gravity, the solid float 21 is in a closed state. Figure 4 a. When the water level rises and overflows the solid float 21 to a certain height, the solid float 21 begins to float and separates from the top sealing surface of the drainage channel 110, and the water flows into the overflow port to overflow. Figure 4 b.

[0048] like Figure 5 , Figure 6 The figure shows a schematic diagram of the overflow system of this embodiment when it is installed on the overflow pipe 40 of the drain valve 4. In the initial state, the solid float 21 is in a closed state due to gravity. When the water inlet valve 3 is working, there are two streams of water, one is injected into the water tank 5, and the other is injected into the overflow pipe 40 through the water supply pipe 30, and enters the toilet pipe through the valve base drain port to realize the "water supply" function. When the water inlet valve 3 does not stop water and continues to take in water, the water tank 5 will overflow. When the water level of the water tank 5 rises and overflows the solid float 21 to a certain height, the solid float 21 begins to float up, and water flows from the overflow port into the overflow pipe 40, and the water flows to the toilet pipe through the valve base drain port to realize overflow.

[0049] like Figure 7 , Figure 8 The figure shows a schematic diagram of the overflow system of this embodiment when it is installed alone at the bottom of the water tank 5. The overflow channel is no longer provided on the side wall of the drain outlet of the drain valve base. In the initial state, the solid float 21 is in a closed state due to gravity. When the water inlet valve 3 is working, there are two streams of water, one of which is injected into the water tank 5, and the other is injected into the overflow pipe 40 through the water supply pipe 30, and enters the toilet pipe through the drain outlet of the valve base to realize the "water supply" function. When the water inlet valve 3 does not stop water and continues to take in water, the water tank 5 will overflow. When the water level of the water tank 5 rises and overflows the solid float 21 to a certain height, the solid float 21 begins to float up, and the water flows from the overflow outlet into the overflow pipe 40, and the water flows to the toilet pipe through the overflow pipe 40 to realize overflow.

[0050] Embodiment 2

[0051] like Figure 9-11 As shown, the difference between this embodiment and the first embodiment is that the side of the drainage portion 11 is not provided with a guide pipe 105, and the drainage channel 110 is not provided with a water storage branch pipe 106 and a water supply elbow joint 107. The rest of the structure and principle of this embodiment are the same as those of the first embodiment.

[0052] Embodiment 3

[0053] like Figure 12-17 As shown, the difference between this embodiment and the first embodiment is that the floating body is a buoy 22, and the buoy 22 can be a top opening structure (such as Fig.15 ), or a bottom-opening structure (such as Fig.16 , Fig.17 ). A sealing pad installation part 220 is fixedly provided at the bottom, and a sealing pad 6 for sealing with the top of the drainage channel 110 is fixedly installed on the sealing pad 220 installation part. The buoy 22 is arranged in the accommodating space 10 and can move up and down. The outer wall surface of the buoy 22 is provided with a plurality of paving grooves 221 matching the shape of the limiting bosses 104 at positions corresponding to the limiting bosses 104, and the paving grooves 221 pass through the buoy 22 from top to bottom. The rest of the structure of this embodiment is the same as that of the first embodiment.

[0054] When installing the buoy 22, first align the respective clearance grooves 221 on the buoy 22 with the limiting bosses 104, install the buoy 22 into the accommodating space 10, and then rotate it by a certain angle so that the limiting bosses 104 can limit the buoy 22 when it floats up.

[0055] Under normal circumstances, the float 22 is in a closed state due to gravity, and the sealing pad 6 installed at the bottom of the float 22 is sealed with the top of the drainage channel 110 to isolate the drainage port of the drain valve from the outside air. At the same time, due to gravity, the float 22 is in a closed state. When the water level rises and overflows the float 22 to a certain height, the float 22 begins to float and the sealing pad 6 is separated from the sealing surface at the top of the drainage channel 110, and water flows into the overflow port to overflow. The overflow system of this embodiment can be installed on the overflow pipe 40 of the drain valve 4, or it can be installed separately at the bottom of the water tank 5. The principle is the same as that of the first embodiment.

[0056] Embodiment 4

[0057] like Figure 18-20 As shown, the difference between this embodiment and the third embodiment is that the side of the drainage portion 11 is not provided with a guide pipe 105, and the drainage channel 110 is not provided with a water storage branch pipe 106 and a water supply elbow joint 107. The rest of the structure and principle of this embodiment are the same as those of the third embodiment.

[0058] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An overflow system for isolating air, characterized in that: The invention comprises an overflow cap and a float, wherein the overflow cap comprises a drainage portion and a water inlet portion fixedly arranged above the drainage portion, a drainage channel which passes through the drainage portion from top to bottom is arranged inside the drainage portion, the water inlet portion is an annular support body, the bottom of the annular support body is fixedly arranged on the outer wall surface of the drainage portion, a water inlet which is connected to the drainage channel is arranged on the side of the annular support body, the inner wall surface of the annular support body is surrounded to form an accommodating space, the float is arranged in the accommodating space and can move up and down, the bottom of the float is sealed with the top of the drainage channel, and a limiting structure which is used to limit the floating stroke of the float is arranged on the top of the annular support body; the annular support body comprises a plurality of guide ribs which are evenly arranged along the circumference of the outer wall surface of the drainage portion and a fixing ring which is fixedly arranged on the top of the guide ribs, and the limiting structure is fixed on the inner wall surface of the fixing ring; A guide pipe for connecting the water supply pipe and the drainage channel is fixedly provided on the side wall of the drainage part; The guide pipe is bent upward inside the drainage channel to form a water storage branch pipe, and a water supply elbow joint is detachably installed on the top of the water storage branch pipe, and the water outlet of the water supply elbow joint is arranged to be inclined downward.

2. An air-isolating overflow system as claimed in claim 1, characterized in that: The bottom of the guide rib is fixedly connected to the outer wall surface of the drainage part through a connecting part.

3. An air-isolating overflow system as claimed in claim 2, characterized in that: The connection portion is located lower than the top end surface of the drainage portion.

4. An air-isolating overflow system as claimed in claim 1, characterized in that: The limiting structure comprises a plurality of semicircular limiting bosses uniformly arranged along the circumference of the inner wall surface of the fixing ring.

5. An air-isolating overflow system as claimed in claim 4, characterized in that: A plurality of clearance grooves matching the shapes of the limiting bosses are formed on the outer wall surface of the floating body at positions corresponding to the limiting bosses, and the clearance grooves penetrate the floating body from top to bottom.

6. An air-isolating overflow system according to any one of claims 1 to 5, characterized in that: The floating body is a solid float.

7. An air-isolating overflow system according to any one of claims 1 to 5, characterized in that: The float is a pontoon, the top or bottom of the pontoon is open and the other end is closed, a sealing pad installation portion is fixedly provided at the bottom of the pontoon, and a sealing pad for sealingly cooperating with the top of the drainage channel is fixedly installed on the sealing pad installation portion.

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