A one-way filtering air exchange device for a drinking water tank

Abstract

This utility model discloses a one-way filtration and ventilation device for drinking water tanks, including a ventilation channel connected to the water tank, and a ventilation component installed within the ventilation channel; wherein, there are two ventilation channels, and the ventilation component includes a one-way inlet component and a one-way outlet component, respectively installed within the two ventilation channels; this utility model relates to the technical field of filtration and ventilation devices. This one-way filtration and ventilation device for drinking water tanks, by setting two independent ventilation channels, each equipped with a one-way inlet component and a one-way outlet component, precisely controls the one-way flow of gas: external atmosphere can only enter the water tank through the inlet channel, and internal gas can only be discharged through the outlet channel, effectively avoiding cross-contamination caused by bidirectional gas flow; simultaneously, the elastic rope provides closing elasticity to the baffle, which can automatically open and close according to the pressure difference between the inside and outside of the water tank, flexibly responding to pressure changes and ensuring that the water tank is always in a state of pressure balance.

Description

Technical Field

[0001] This utility model relates to the technical field of filtration and ventilation devices, specifically a one-way filtration and ventilation device for drinking water tanks. Background Technology

[0002] In the field of drinking water storage, water tanks are commonly used water storage devices, and the exchange of gases between their interior and exterior is one of the key factors affecting water quality. When the water level in the tank decreases, the internal air pressure drops, requiring the intake of external air to balance the pressure; when the water level increases or the water temperature changes, causing the internal air pressure to rise, the internal gases need to be released.

[0003] In the existing technology, some water tanks lack a one-way control structure for their ventilation devices, resulting in bidirectional gas flow. Unfiltered air from the outside (containing dust, microorganisms, odors and other impurities) can easily enter the water tank directly, contaminating the drinking water inside. Odor gases that may be generated inside the water tank due to changes in water quality may also remain, affecting the stability of water quality.

[0004] Therefore, this utility model provides a one-way filtration and ventilation device for drinking water tanks to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a one-way filtration and ventilation device for drinking water tanks, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a one-way filtration and ventilation device for drinking water tanks, including a ventilation channel connected to the water tank, wherein a ventilation component is provided in the ventilation channel;

[0007] The ventilation channel is provided in two places. The ventilation component includes an inlet one-way component and an outlet one-way component, which are respectively arranged in the two ventilation channels. The inlet one-way component allows external air to enter the drinking water tank through the inlet channel; the outlet one-way component allows the gas inside the drinking water tank to be discharged to the external atmosphere through the outlet channel.

[0008] Both the one-way air intake assembly and the one-way air outlet assembly include a mounting ring fixedly installed inside the ventilation assembly. The mounting ring is provided with a baffle that blocks its through portion. An elastic rope is also fixedly installed between the mounting ring and the baffle. The elastic rope is used to provide the baffle with an elastic force to close the ventilation channel.

[0009] The one-way filtration and ventilation device also includes a filter component installed on the one-way air intake assembly for filtering the gas entering the drinking water tank.

[0010] Preferably, one side of the baffle extends outward to form a protrusion, which extends into the interior of the mounting ring and fits against its inner wall.

[0011] Preferably, a plurality of ventilation holes I are provided through the baffle at the outer edge of the protrusion, and a plurality of ventilation holes II are provided through the edge of the baffle, wherein the ventilation holes I and the ventilation holes II are staggered.

[0012] Preferably, the one-way air intake assembly further includes a filter membrane disposed inside the mounting ring, and the elastic cord passes through the filter membrane and is disposed along its length. When the elastic cord is in its original length state, the filter membrane is wrinkled because its own length is greater than the original length of the elastic cord.

[0013] Preferably, the elastic rope is a rubber rope or an elastic fiber braided rope.

[0014] Preferably, the filter assembly consists of PP cotton and an ultrafiltration membrane, and is fixedly mounted on the inner wall of the mounting ring.

[0015] Beneficial effects

[0016] This invention provides a one-way filtration and ventilation device for drinking water tanks. Compared with the prior art, it has the following advantages:

[0017] (1) The drinking water tank unidirectional filtration and ventilation device is equipped with two independent ventilation channels, which are equipped with one-way air intake components and one-way air exhaust components respectively, to precisely control the one-way flow of gas: the external atmosphere can only enter the water tank through the air intake channel, and the internal gas can only be discharged through the air exhaust channel, which effectively avoids cross-contamination caused by bidirectional gas flow; at the same time, the elastic rope provides the closing elastic force for the baffle, which can automatically open and close according to the pressure difference between the inside and outside of the water tank, flexibly respond to the pressure change, and ensure that the water tank is always in a state of pressure balance, avoiding deformation or damage to the water tank due to abnormal pressure.

[0018] (2) The drinking water tank one-way filtration and ventilation device can perform preliminary filtration of incoming air by setting a filter component in the one-way air intake component, removing dust, large particulate impurities and some microorganisms; at the same time, it is combined with a pleated filter membrane to further enhance the filtration effect and effectively intercept fine particles, bacteria and other harmful substances; the synergistic effect of the multi-stage filtration structure significantly improves the cleanliness of the gas entering the water tank, reducing the risk of drinking water pollution from the source. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the ventilation channel of this utility model;

[0021] Figure 3 This is a disassembled schematic diagram of the ventilation component of this utility model;

[0022] Figure 4 This is a partial structural diagram of the ventilation component of this utility model.

[0023] In the diagram: 1-ventilation channel, 2-ventilation component, 3-mounting ring, 4-baffle, 5-elastic rope, 6-filter component, 7-protrusion, 8-ventilation hole one, 9-ventilation hole two, 10-filter membrane. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 This utility model provides a technical solution: a one-way filtration and ventilation device for drinking water tanks, including a ventilation channel 1 connected to the water tank, and a ventilation component 2 disposed within the ventilation channel 1. The ventilation channel 1 has two components, and the ventilation component 2 includes an inlet one-way component and an outlet one-way component, respectively disposed within the two ventilation channels 1, such that one ventilation channel 1 can only be used for air intake, and the other ventilation channel 1 can only be used for air exhaust. The inlet one-way component allows external air to enter the drinking water tank through the inlet channel; the outlet one-way component allows gas inside the drinking water tank to be discharged to the external atmosphere through the outlet channel. The one-way filtration and ventilation device also includes a filter component 6 disposed on the inlet one-way component for filtering the gas entering the drinking water tank, preventing external contamination of the water inside the tank.

[0026] To illustrate, the mounting ring 3 has an annular groove on the side near the baffle 4. The elastic rope 5 is fixedly installed between the inner wall of the annular groove and the baffle 4, and when the elastic rope 5 is at its original length, it is completely retracted into the annular groove.

[0027] Regarding the structural design of the baffle 4, the outer surface of the baffle 4 is fitted to the inner wall of the ventilation channel 1, thereby improving the stability of the baffle 4 during movement; a protrusion 7 extends outward from one side of the baffle 4, and the protrusion 7 extends into the interior of the mounting ring 3 and fits against its inner wall. Preferably, the baffle 4 and the protrusion 7 are made of rubber, thereby improving the sealing between them and the mounting ring 3; a plurality of ventilation holes 1 8 are provided through the baffle 4 at the outer edge of the protrusion 7, and a plurality of ventilation holes 2 9 are provided through the edge of the baffle 4, wherein the ventilation holes 1 8 and the ventilation holes 2 9 are staggered.

[0028] To explain, vent hole 8 is located between the inner surface of the mounting ring 3 and the filter membrane 10, and vent hole 9 is located on the outer side of the filter membrane 10, so as to ensure the sealing performance of the baffle 4 while also ensuring its ventilation effect.

[0029] The design scheme for the one-way air intake component includes a mounting ring 3 fixedly installed within the ventilation component 2. A baffle 4 is installed on the mounting ring 3 to block its through-passage portion. The baffle 4 is located on the side of the mounting ring 3 furthest from the external atmosphere. An elastic rope 5 is also fixedly installed between the mounting ring 3 and the baffle 4. The elasticity coefficient of the elastic rope 5 can be set according to requirements. The elastic rope 5 ensures that when no external force is applied, the baffle 4 is tightly fitted to one side of the mounting ring 3, guaranteeing the airtightness of the ventilation channel 1 at that location. When air intake is required, the air pressure pushes the baffle 4 to move away from the mounting ring 3, allowing the elastic rope 5 to release its tension. The elastic rope 5 is stretched, and the airflow enters through the gap between the baffle 4 and the mounting ring 3. The elastic rope 5 is used to provide the baffle 4 with the elastic force to close the ventilation channel 1. It also includes a filter membrane 10 set inside the mounting ring 3. The elastic rope 5 passes through the filter membrane 10 and is set along its length. When the elastic rope 5 is at its original length, the filter membrane 10 is wrinkled because its own length is greater than the original length of the elastic rope 5. The filter membrane 10 is also completely contained in the annular groove when the elastic rope 5 is at its original length. Through the setting of the filter plate 10, when the baffle 4 is moved by force, the elastic rope 5 is stretched. At this time, the filter membrane 10 unfolds and further filters the incoming airflow.

[0030] The design scheme for the one-way air outlet component includes a mounting ring 3 fixedly installed inside the ventilation component 2. A baffle 4 is installed on the mounting ring 3 to block its through part. The baffle 4 is positioned between the mounting ring 3 and the outside atmosphere, so that when air is discharged, the baffle 4 moves under force, creating a gap between it and the mounting ring 3 to allow airflow. An elastic rope 5 is also fixedly installed between the mounting ring 3 and the baffle 4. The elastic rope 5 is used to provide the baffle 4 with the elastic force to close the ventilation channel 1.

[0031] Regarding the material design of the elastic rope 5, the elastic rope 5 is a rubber rope or an elastic fiber braided rope.

[0032] Regarding the design of the filter component 6, the filter component 6 is composed of PP cotton and an ultrafiltration membrane, and is fixedly installed on the inner wall of the mounting ring 3. Through the installation of the filter component 6, the incoming airflow is initially filtered.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A one-way filtration and ventilation device for a drinking water tank, comprising a ventilation channel (1) connected to the water tank, characterized in that: The ventilation channel (1) is provided with a ventilation component (2); The ventilation channel (1) is provided in two places. The ventilation component (2) includes an inlet one-way component and an outlet one-way component, which are respectively provided in the two ventilation channels (1). The inlet one-way component allows the outside air to enter the drinking water tank through the inlet channel; the outlet one-way component allows the gas inside the drinking water tank to be discharged to the outside air through the outlet channel. Both the one-way air intake assembly and the one-way air outlet assembly include an installation ring (3) fixedly installed inside the ventilation assembly (2). The installation ring (3) is provided with a baffle (4) to block its through part. An elastic rope (5) is also fixedly installed between the installation ring (3) and the baffle (4). The elastic rope (5) is used to provide the baffle (4) with an elastic force to close the ventilation channel (1). The one-way filtration and ventilation device also includes a filter assembly (6) installed on the one-way air intake assembly for filtering the gas entering the drinking water tank.

2. The one-way filtration and ventilation device for a drinking water tank according to claim 1, characterized in that: One side of the baffle (4) extends outward to form a protrusion (7), which extends into the interior of the mounting ring (3) and fits against its inner wall.

3. The one-way filtration and ventilation device for a drinking water tank according to claim 2, characterized in that: Multiple ventilation holes 1 (8) are provided on the baffle (4) and at the outer edge of the protrusion (7), and multiple ventilation holes 2 (9) are provided at the edge of the baffle (4), wherein the ventilation holes 1 (8) and the ventilation holes 2 (9) are staggered.

4. The one-way filtration and ventilation device for a drinking water tank according to claim 1, characterized in that: The one-way air intake assembly also includes a filter membrane (10) disposed inside the mounting ring (3). The elastic rope (5) passes through the filter membrane (10) and is disposed along its length. When the elastic rope (5) is in its original length state, the filter membrane (10) is wrinkled because its own length is greater than the original length of the elastic rope (5).

5. A one-way filtration and ventilation device for a drinking water tank according to claim 1, characterized in that: The elastic rope (5) is a rubber rope or an elastic fiber braided rope.

6. The one-way filtration and ventilation device for a drinking water tank according to claim 1, characterized in that: The filter assembly (6) is composed of PP cotton and an ultrafiltration membrane, and is fixedly installed on the inner wall of the mounting ring (3).

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