Water inlet air inlet structure of pressure package

Abstract

The application discloses a water and air inlet structure of a pressure package, which comprises a fluid container, a Venturi nozzle, a baffle and a float. The fluid container is provided with a containing cavity, a water inlet channel and an air inlet channel. The containing cavity is provided with a fluid inlet, and the water inlet channel and the air inlet channel are communicated with the fluid inlet. An inner wall of the air inlet channel is formed with a limiting ring, and an air inlet is arranged in the ring. The Venturi nozzle is arranged at a position where the water inlet channel is communicated with the fluid inlet. The baffle is axially limitedly matched with the outside of the air inlet to movably seal the air inlet and not to be separated from the air inlet channel. The float is arranged at the inside of the air inlet, and a convex column is arranged at the top end of the float. The convex column movably penetrates the air inlet and abuts against the baffle. The float is lifted by the pressure in the fluid container until the air inlet is closed, and the convex column lifts the baffle to open the air inlet before the float closes the air inlet. The application can control the total amount of inhaled gas when water and air are supplemented, avoid the over-high air pressure in the pressure package, and thus reduce the water inlet and outlet noise and improve the user experience during use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure flushing system, in particular to a water and air inlet structure of a pressure tank. BACKGROUND

[0002] In normal state, the pressure flushing system is in a closed state as a whole, and a certain amount of pressure energy is accumulated in the pressure tank. When the user performs the flushing operation (such as pressing the opening valve), the pressure balance of the system is broken, first the drain port of the pressure tank is opened, then the accumulated pressure energy is released to push the water in the pressure tank out, thereby generating strong flushing force. Compared with the traditional flushing system which uses gravity potential energy for drainage flushing, the pressure flushing system can achieve more effective flushing with less water, and is not limited by water level height, and is more flexible and advantageous in space layout.

[0003] The pressure energy accumulated in the pressure tank (also referred to as pressure tank) is formed by replenishing air while replenishing water after drainage: after drainage, the pressure tank is replenished with water and air at the same time, the replenished gas is accumulated above the inside of the pressure tank, the replenished water is accumulated below the inside of the pressure tank and the water level is continuously raised, thereby compressing the gas to form pressure energy, when the air pressure in the pressure tank reaches a certain degree, the air replenishment channel is closed and the air replenishment is stopped; At this time, the pressure of the whole pressure flushing system also reaches balance, the water replenishment is stopped, and the whole system returns to normal state. It can be seen that the water and air inlet structure of the pressure tank is the key to control the water level and air volume of the pressure tank, and is also the difficulty in designing the pressure tank in the industry. The existing pressure tank has the problem of excessive air volume, which causes the water and air to be out of synchronization during drainage, and produces bubbles and noise at the end of drainage, affecting the flushing effect and user experience. SUMMARY

[0004] The purpose of the present application is to provide a water and air inlet structure of a pressure tank, which can control the total amount of gas inhaled during water and air replenishment, avoid excessive air pressure in the pressure tank, and reduce the water inlet and outlet noise and improve the user experience during use.

[0005] In order to achieve the above purpose, the solution of the present application is:

[0006] The water inlet and air inlet structure of a pressure bag comprises a fluid container, a Venturi nozzle, a baffle and a float; the fluid container is provided with a containing cavity, a water inlet channel and an air inlet channel; the containing cavity is provided with a fluid inlet, and the water inlet channel and the air inlet channel are both communicated to the fluid inlet; an inner wall of the air inlet channel is provided with a limiting ring, and an air inlet is arranged in the ring; the Venturi nozzle is arranged at the communication position of the water inlet channel and the fluid inlet; the baffle is axially limitedly matched outside the air inlet to movably seal the air inlet and cannot be separated from the air inlet channel; the float is arranged inside the air inlet, and a convex column is arranged at the top end of the float; the convex column movably penetrates the air inlet and abuts against the baffle; the float is lifted by the internal pressure of the fluid container until the air inlet is closed, and before the float closes the air inlet, the convex column abuts against and lifts the baffle to make the baffle open the air inlet.

[0007] The baffle is made of soft rubber material.

[0008] A lower surface of the baffle is provided with a ring of convex rings protruding towards the limiting ring.

[0009] An outer side of the air inlet is provided with a gas-permeable baffle part for axially limiting the baffle, the gas-permeable baffle part is a rubber block tightly fitted at the outer end of the air inlet channel, and a plurality of air passing holes are arranged on the rubber block.

[0010] Preferably, an upper surface of the baffle is a curved surface.

[0011] A first sealing ring is sleeved on the peripheral surface of the input end of the Venturi nozzle, and the Venturi nozzle is embedded in the output end of the water inlet channel.

[0012] An inner side of the air inlet is provided with a sealing inclined surface; a second sealing ring is sleeved on the peripheral surface of the convex column; and the second sealing ring abuts against the sealing inclined surface with the movement of the float.

[0013] The water inlet and air inlet structure of the pressure bag further comprises a spring arranged in the float; one end of the spring is embedded in the float, and the other end of the spring abuts against the inner end of the air inlet channel.

[0014] Preferably, the inner end of the air inlet channel is provided with a limiting column for sleeving the spring.

[0015] The fluid container comprises a shell and a cover; the shell is formed with the containing cavity and the fluid inlet thereof, and a mounting groove for assembling the cover, and the fluid inlet is arranged on the bottom wall of the mounting groove; the cover is formed with the water inlet channel and the air inlet channel, and a third sealing ring is arranged between the cover and the mounting groove.

[0016] By adopting the technical scheme, the application has the following technical effects:

[0017] By arranging the baffle outside the air inlet, when the fluid container starts to fill water in the initial stage, the negative pressure in the fluid container will make the baffle tightly adhere to the air inlet to generate a sealing effect, thereby avoiding the absorption of a large amount of gas in the initial stage of water filling when the fluid flow rate is relatively high, thereby controlling the total amount of inhaled gas when the pressure bag is filled with water and gas, avoiding the over-high air pressure in the pressure bag, avoiding the generation of a large amount of bubbles during subsequent water drainage, reducing noise, and further improving the flushing effect and user experience. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of a specific embodiment of the application;

[0019] Figure 2 is an exploded view of a specific embodiment of the application;

[0020] Figure 3 is a top view of a specific embodiment of the application;

[0021] Figure 4 is a sectional view of a specific embodiment of the application (A-A direction); Figure 3

[0022] Figure 5 is a structural schematic view of the initial stage of water filling of a specific embodiment of the application;

[0023] Figure 6 is a structural schematic view of the middle stage of water filling of a specific embodiment of the application;

[0024] Figure 7 is a structural schematic view of the final stage of water filling of a specific embodiment of the application;

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1----fluid container; 11---housing; 111--cavity; 112--fluid inlet; 113--mounting groove; 114--limiting column; 12---cover; 121--water inlet channel; 122--air inlet channel; 123--limiting ring; 124--air inlet; 125--sealing inclined surface;

[0027] 2----venturi nozzle;

[0028] 3----baffle; 31---convex ring; 32---curved surface;

[0029] 4----float; 41---convex column;

[0030] 5----air permeable baffle; 51---air passage hole;

[0031] ​6 - first seal ring;

[0032] 7 - second seal ring;

[0033] 8 - spring;

[0034] 9 - third seal ring. Embodiments

[0035] In order to further explain the technical solutions of the present application, the present application will be described in detail below through specific embodiments.

[0036] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope to be protected by the present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope to be protected by the present application.

[0038] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the purpose of simplifying the description of the embodiments of the present application, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0041] It should be noted that, in the description of the embodiments of the present application, unless specifically defined and limited, the terms "arrange", "install", "connect", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless specifically defined and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to 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. "Below", "below" and "below" of the first feature to 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.

[0043] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0044] In addition, the present application provides various specific examples of processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0045] Reference Figures 1 to 4 As shown, the present application discloses a water inlet and air inlet structure of a pressure bag, comprising a fluid container 1, a venturi nozzle 2, a baffle 3 and a float 4;

[0046] The fluid container 1 is provided with a cavity 111, a water inlet channel 121 and an air inlet channel 122; the cavity 111 is provided with a fluid inlet 112, and the water inlet channel 121 and the air inlet channel 122 are communicated from the outside of the fluid container 1 to the fluid inlet 112; the inner wall of the air inlet channel 122 is provided with a limiting ring 123, and the ring of the limiting ring 123 is an air inlet 124;

[0047] The venturi nozzle 2 is arranged at the communication between the water inlet channel 121 and the fluid inlet 112;

[0048] The baffle 3 is axially limitedly matched outside the air inlet 124 to movably seal the air inlet 124 and not to be separated from the air passage 122;

[0049] The float 4 is arranged inside the air inlet 124, and the top end of the float 4 is provided with a convex column 41 movably penetrating the air inlet 124 and abutting against the baffle 3; the float 4 is lifted by the pressure inside the fluid container 1 until the air inlet 124 is closed, and the convex column 41 abuts against and lifts the baffle 3 to open the air inlet 124 before the float 4 closes the air inlet 124.

[0050] The specific embodiments of the present application are shown as follows.

[0051] The baffle 3 is made of soft rubber material and can be deformed to a certain extent under the action of atmospheric pressure, more easily adheres to the outside of the air inlet 124 to achieve the purpose of sealing, and prevents the air from entering in the initial stage.

[0052] The lower surface of the baffle 3 is provided with a ring of convex rings 31 protruding towards the limiting ring 123, which can improve the sealing effect of the baffle 3: when the baffle 3 adheres to the limiting ring 123 under the action of atmospheric pressure, the middle part of the baffle 3 will deform into the convex ring 31, so that the convex ring 31 adheres more tightly to the limiting ring 123.

[0053] The limiting ring 123 can be integrally connected with the air passage 122, which has higher strength; or the limiting ring 123 can be a separate accessory produced and fixed in the air passage 122 in a tight fit or other detachable connection manner, to achieve the effect of detachable and easier production of parts.

[0054] The outside of the air inlet 124 is provided with a gas-permeable baffle for axially limiting the baffle 3. In the embodiment, the gas-permeable baffle 5 is a rubber block tightly fitted on the outside end of the air passage 122, and a plurality of gas passing holes 51 are arranged on the rubber block. The rubber block provided with the gas passing holes 51 not only has the limiting function of the baffle 3, but also enables the fluid container 1 to be connected to the atmosphere, and is more convenient to install. In addition, since the baffle 3 is usually made of soft material, the gas-permeable baffle 5 can also be a protruding part integrally formed on the side wall of the air passage 122, and the baffle 3 can be installed by being hard pressed into the protruding part.

[0055] Further, the upper surface of the baffle 3 is a curved surface 32 with a certain arc shape, which can reduce the contact area with the gas-permeable baffle 5, thereby avoiding the problem that the baffle 3 cannot be lowered again after being in contact with the gas-permeable baffle 5 (especially when the air inlet 124 may seep water).

[0056] The input end peripheral surface of the Venturi nozzle 2 is sleeved with a first sealing ring 6, and is embedded in the output end of the water inlet channel 121.

[0057] The inner side of the air inlet 124 is provided with a sealing slope 125; the peripheral surface of the convex column 41 is sleeved with a second sealing ring 7; the second sealing ring 7 abuts against the sealing slope 125 with the movement of the float 4, so as to improve the sealing effect of the float 4.

[0058] The spring 8 is arranged in the float 4; one end of the spring 8 is embedded in the float 4, and the other end abuts against the inner side end of the air inlet channel 122, such as a limiting column 114 for sleeving the spring 8. The float 4 is usually made of light material, and can be lifted under the action of the internal pressure of the pressure package; the spring 8 can provide an auxiliary thrust for lifting the float 4, so as to prevent the water seepage phenomenon when the pressure at both ends of the float is at a balance critical point.

[0059] The fluid container 1 includes a shell 11 and a cover 12; the shell 11 is formed with the above-mentioned cavity 111 and fluid inlet 112, and a mounting groove 113 for assembling the cover 12, and the fluid inlet 112 is arranged on the bottom wall of the mounting groove 113; the cover 12 is formed with the above-mentioned water inlet channel 121 and air inlet channel 122, and a third sealing ring 9 is arranged between the cover 12 and the mounting groove 113. By designing the fluid container 1 as two parts, the molding of parts and technical features is facilitated, and the assembly of the Venturi nozzle 2 and the float 4 is facilitated. Even, the shell 11 itself can be split into upper and lower shells for separate molding, and finally the upper and lower shells are welded into an integrated structure to obtain the shell 11. In the embodiment, the cover 12 is bolted on the top of the shell 11.

[0060] The working principle of the present application is as follows:

[0061] Referring to Figure 5 As shown in the initial stage of water inlet, due to the acceleration of the water flow by the Venturi nozzle 2, a negative pressure is generated near the fluid inlet 112, and the atmospheric pressure presses the flapper 3 towards the air inlet 124, so that the air inlet 124 is closed to limit the air intake of the fluid container 1.

[0062] Referring to Figure 6 As shown in the middle stage of water inlet, after the fluid container 1 is supplemented with a certain amount of water, the pressure inside the fluid container 1 gradually rises, the pressure lifts the float 4, the convex column 41 of the float 4 lifts the flapper 3 and opens the air inlet 124, at this time the fluid container 1 starts to intake air (referring to the dotted line direction of air intake in the figure);

[0063] Referring to Figure 7 As shown in the final stage of water inlet, after the fluid container 1 intakes air for a period of time, the float 4 blocks the inner side of the air inlet 124, and the air inlet 124 is closed again to limit the air intake of the fluid container 1.

[0064] It can be seen that the structure of the present application realizes that the fluid container 1 can only inhale air in the middle stage of water inflow to realize air supplement, and inhale air is limited in the initial stage of water inflow to avoid inhaling too much air in the whole water inflow process.

[0065] Through the above scheme, the present application sets the baffle 3 outside the air inlet 124, when the fluid container 1 starts the initial stage of water inflow, the negative pressure in the fluid container 1 will make the baffle 3 close to the air inlet 124 to generate a sealing effect, thereby avoiding inhaling a large amount of air in the initial stage of water inflow when the fluid flow rate is fast, thereby realizing control of the total amount of inhaled air when the pressure package is supplemented with water and air, avoiding that the air pressure in the pressure package is too high, avoiding that a large amount of air bubbles is generated in subsequent water drainage, reducing noise, and further improving flushing effect and user experience.

[0066] The above embodiments and drawings are not limited to the product form and style of the present application, and any appropriate changes or modifications made by those skilled in the art to the present application shall be considered as not departing from the patent scope of the present application.

Claims

1. A water inlet and air inlet structure of a pressure tank, characterized in that: comprising a fluid container, a Venturi nozzle, a baffle and a float; the fluid container is provided with a cavity, a water inlet channel and an air inlet channel; the cavity is provided with a fluid inlet, the water inlet channel and the air inlet channel are communicated to the fluid inlet; the inner wall of the air inlet channel is provided with a limiting ring, and the ring is an air inlet; the Venturi nozzle is arranged at the communication between the water inlet channel and the fluid inlet; the baffle is axially limited and fitted outside the air inlet to movably seal the air inlet and not to be separated from the air inlet channel; the float is arranged inside the air inlet, and the top end of the float is provided with a convex column; the convex column movably penetrates the air inlet and abuts against the baffle; the float is lifted by the internal pressure of the fluid container until the air inlet is closed, and before the float closes the air inlet, the convex column abuts against and lifts the baffle to open the air inlet.

2. The water inlet and air inlet structure of the pressure tank according to claim 1, characterized in that: the baffle is made of soft rubber material.

3. The water inlet and air inlet structure of the pressure tank according to claim 1, characterized in that: the lower surface of the baffle is provided with a ring of convex rings protruding towards the limiting ring.

4. The water inlet and air inlet structure of the pressure tank according to claim 1, characterized in that: the outside of the air inlet is provided with a gas-permeable baffle for axially limiting the baffle, the gas-permeable baffle is a rubber block tightly fitted at the outside end of the air inlet channel, and a plurality of air holes are arranged on the rubber block.

5. The water inlet and air inlet structure of the pressure tank according to claim 4, characterized in that: the upper surface of the baffle is a curved surface.

6. The water inlet and air inlet structure of the pressure tank according to claim 1, characterized in that: the input end of the Venturi nozzle is provided with a first sealing ring, and the first sealing ring is embedded in the output end of the water inlet channel.

7. The water inlet and air inlet structure of the pressure tank according to claim 1, characterized in that: the inside of the air inlet is provided with a sealing slope; the peripheral surface of the convex column is provided with a second sealing ring; and the second sealing ring abuts against the sealing slope with the movement of the float.

8. The water inlet and air inlet structure of the pressure tank according to claim 1, characterized in that: further comprising a spring arranged in the float; one end of the spring is embedded in the float, and the other end of the spring abuts against the inside end of the air inlet channel.

9. The water inlet and air inlet structure of the pressure tank according to claim 8, characterized in that: the inside end of the air inlet channel is provided with a limiting column for sleeving the spring.

10. The water inlet and air inlet structure of the pressure tank according to claim 1, characterized in that: the fluid container comprises a shell and a cover; the shell is formed with the cavity, the fluid inlet and a mounting groove for assembling the cover, and the fluid inlet is arranged on the bottom wall of the mounting groove; the cover is formed with the water inlet channel and the air inlet channel, and a third sealing ring is arranged between the cover and the mounting groove. ​

Images