A reverse flow prevention oxygenation gas pump for aquariums

Abstract

This utility model discloses an aquarium air pump that prevents backflow. By setting an air pump assembly and an air outlet channel inside the housing, and setting a one-way valve mounting seat and a one-way valve inside the air outlet channel, it effectively prevents water in the aquarium from flowing into the pump body from the first air outlet section. This solves the problem of water backflow caused by negative pressure when traditional air pumps stop working, thus improving safety. The one-way valve of this utility model adopts a T-shaped structure, including a soft rubber cover and a columnar connecting part connected to the soft rubber cover. The connecting part is connected to the one-way valve mounting seat. The soft rubber cover is located on the end face of the one-way valve mounting seat facing the second air outlet section. The end of the connecting part away from the soft rubber cover faces the first air outlet section. The soft rubber cover tightly covers the port of the air vent facing the second air outlet section, effectively improving the sealing and sensitivity of the one-way valve and ensuring the stability of the equipment during operation.

Description

Technical Field

[0001] This utility model relates to the field of aquarium oxygenation equipment, specifically to an aquarium oxygenation pump that prevents backflow. Background Technology

[0002] With the improvement of people's living standards and the pursuit of natural ecology, aquariums in homes have become not only homes for fish but also shared enjoyment for families. However, the water in which ornamental fish depend for survival cannot obtain enough oxygen from the natural environment, especially in aquariums or fish tanks. Due to limited space and high fish density, insufficient oxygen supply can easily occur, threatening the survival of the fish. To ensure that the fish do not die from lack of oxygen, an air pump is usually used to supply oxygen. By pressing air into the water, the oxygen in the air is fully contacted with the water, thereby increasing the oxygen content in the water. For example, an air pump disclosed in Chinese patent document CN215346547U includes a base, an air pump assembly consisting of an air pump device and a drive device installed in the base, and an air outlet. The air intake channel of the air pump device is connected to the outside air through a pipe, and the air outlet is connected to the air outlet channel of the air pump device, through which the intake air is discharged into the water.

[0003] When an air pump is placed below the level of the aquarium, a negative pressure will appear between the pump and its piping the moment it stops working. Water from the aquarium will then flow back into the pump via a siphon effect due to this negative pressure difference, potentially damaging internal components. Although similar products typically have a check valve A connected to the external air outlet (such as...) Figure 1 The design (as shown) is intended to prevent accidents, but this not only affects the appearance and structure of the oxygen pump but also causes inconvenience for users and is prone to danger due to forgetting to connect the check valve or the check valve falling off during use. Therefore, developing an oxygen pump that can prevent backflow without an external check valve is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The main purpose of this invention is to provide an aquarium air pump that prevents backflow, aiming to prevent backflow without the need for an external check valve.

[0005] This utility model proposes an aquarium air pump to prevent backflow, including a housing, an air pump assembly installed inside the housing, an air inlet component communicating with the air inlet end of the air pump assembly, and an air outlet channel communicating with the air outlet end of the air pump assembly. An air outlet component extends from the housing and communicates with the air outlet end of the air outlet channel. The air inlet component extends from the housing. A one-way valve fixing seat and a one-way valve are provided in the air outlet channel. The one-way valve fixing seat laterally blocks the air outlet channel to divide the air outlet channel into an air outlet section communicating with the air outlet end of the air pump assembly and an air outlet section communicating with the air outlet component.

[0006] The one-way valve mounting base is provided with a vent hole for connecting the first air outlet section and the second air outlet section. The one-way valve has a T-shaped structure, including a soft rubber cover and a columnar connecting part connected to the soft rubber cover. The one-way valve is connected to the one-way valve mounting base through the connecting part. The soft rubber cover is located on the end face of the one-way valve mounting base facing the second air outlet section. The end of the connecting part away from the soft rubber cover faces the first air outlet section. The soft rubber cover tightly covers the port of the vent hole facing the second air outlet section, blocking the communication between the first air outlet section and the second air outlet section. The air pump assembly draws in air from the outside through the air intake component and blows air into the first air outlet section. The blown air pushes the soft rubber cover away from the vent hole, so that the first air outlet section and the second air outlet section are connected. After the connection is established, the air enters the aquarium through the air outlet channel and the air outlet component to achieve the purpose of oxygenation.

[0007] When the air pump assembly stops working, and if no check valve is installed on the air outlet component, water in the aquarium will enter the air outlet channel from the air outlet component. The air outlet section is sealed off by the one-way valve and the one-way valve fixing seat to prevent water in the aquarium from flowing into the air pump assembly from the air outlet section.

[0008] Preferably, the soft rubber cap is in the form of a thin sheet.

[0009] Preferably, the surface of the soft rubber cap facing the second air outlet section is a convex arc-shaped surface.

[0010] Preferably, the one-way valve mounting seat has a through-hole for the one-way valve, the connecting part is installed through the one-way valve mounting hole, the connecting part has a shoulder, and the shoulder and the soft rubber cover respectively block the two ends of the one-way valve mounting hole.

[0011] Preferably, the air outlet channel includes a first air passage and a second air passage. The first air passage is disposed in the first housing, and the second air passage is disposed in the second housing. The first housing and the second housing are inserted and fixed together. The one-way valve fixing seat is installed in the first housing or the second housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model effectively prevents water in the aquarium from flowing into the pump body from the air outlet section by setting an air pump assembly and an air outlet channel inside the outer shell, and setting a one-way valve fixing seat and a one-way valve inside the air outlet channel. This solves the problem of water backflow caused by negative pressure when the traditional aerator pump stops working, and improves safety.

[0014] 2. No additional check valve is required, which improves the product's appearance and reduces the possibility of operational errors. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an existing oxygen pump.

[0016] Figure 2 This is a schematic diagram of the internal structure of the aquarium air pump with its outer casing open, used to prevent backflow in an embodiment of this utility model.

[0017] Figure 3 This is a cross-sectional view of the air outlet channel, air outlet component, one-way valve mounting base, and one-way valve of the aquarium air pump used to prevent backflow in an embodiment of this utility model.

[0018] Figure 4 for Figure 3 Enlarged view of section B.

[0019] Figure 5 This is a cross-sectional view of the aquarium air pump used to prevent backflow in an embodiment of the present invention when the one-way valve is open.

[0020] Figure 6 This is an exploded view of the one-way valve and one-way valve mounting base of the aquarium air pump used to prevent backflow in an embodiment of this utility model. Figure 1 .

[0021] Figure 7 This is an exploded view of the one-way valve and one-way valve mounting base of the aquarium air pump used to prevent backflow in an embodiment of this utility model. Figure 2 .

[0022] Figure 8 This is an assembly diagram of the one-way valve and the one-way valve mounting base of the aquarium air pump used to prevent backflow in an embodiment of this utility model.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals identify the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] Reference Figures 2 to 8 This utility model provides an aquarium air pump that prevents backflow, including a housing, an air pump assembly 1 installed inside the housing, an air intake component connected to the air intake end of the air pump assembly 1, and an air outlet channel connected to the air outlet end 11 of the air pump assembly 1. The air intake component is located inside an air intake pipe, and the air intake end of the air pump assembly 1 is connected to the air intake pipe, which is connected to the air outlet channel within the air intake pipe. An air outlet component 4 extends from the housing and is connected to the air outlet end of the air outlet channel; in this embodiment, the air outlet component 4 is an air outlet nozzle. The housing in this embodiment is made of ABS engineering plastic, which has good corrosion resistance and mechanical strength. In use, the air pump is placed in the aquarium, with the air intake pipe extending outside the aquarium and the air outlet component 4 extending into the water. The air pump assembly 1 draws in air from the outside through the air intake pipe and discharges air into the air outlet channel. The input air is transported to the air outlet component 4 through the air outlet channel, and the air outlet component 4 then delivers the air into the water, achieving the purpose of oxygenation.

[0028] The air outlet channel consists of a first air outlet channel and a second air outlet channel. The first air outlet channel is located inside the first housing 2, and the second air outlet channel is located inside the second housing 3. The first housing 2 is integrally formed and has a first horizontal air outlet structure that is horizontally arranged and connects to the air outlet end 11 of the air pump assembly, and a first vertical air outlet structure that is vertically arranged. The first horizontal air outlet structure and the first vertical air outlet structure are connected. The second housing 3 is integrally formed on the bottom surface inside the outer shell. The second housing 3 has a second horizontal air outlet structure that is horizontally arranged and connects to the air outlet component 4, and a second vertical air outlet structure that is vertically arranged. The second horizontal air outlet structure and the second vertical air outlet structure are connected. The upper end of the second vertical air outlet structure is inserted into the second vertical air outlet structure. A silicone ring is provided on the inner wall of the first vertical air outlet structure or the outer wall of the second vertical air outlet structure. The inner wall of the first vertical air outlet structure, the silicone ring, and the outer wall of the second vertical air outlet structure are tightly attached to each other, so that the first vertical air outlet structure and the second vertical air outlet structure are tightly connected and have good airtightness.

[0029] In other embodiments, the first vertical ventilation structure and the second vertical ventilation structure can also be connected by a threaded connection. That is, matching threads are provided on the inner wall of the first vertical ventilation structure and the outer wall of the second vertical ventilation structure, respectively. A sealing ring is provided on the inner wall of the first vertical ventilation structure, and a sealing gasket is provided on the top of the second vertical ventilation structure, with the sealing ring positioned above the threads. The upper end of the second vertical ventilation structure is inserted into the second vertical ventilation structure and connected by threads. After connection, the sealing gasket fits snugly against the lower end face of the sealing ring, ensuring good airtightness.

[0030] To prevent water backflow, a one-way valve mounting seat 5 and a one-way valve 6 are provided in the air outlet channel. The one-way valve mounting seat 5 laterally blocks the air outlet channel to divide the air outlet channel into an air outlet section 21 that communicates with the air outlet end 11 of the air pump assembly 1 and an air outlet section 31 that communicates with the air outlet component 4.

[0031] The one-way valve mounting base 5 is provided with multiple vent holes 51 for connecting the first air outlet 21 and the second air outlet 31. The one-way valve is made of silicone material and is elastic. The one-way valve has a T-shaped structure, including a soft rubber cover 61 and a columnar connecting part 62 connected to the soft rubber cover 61, with the connecting part 62 perpendicularly connected to the soft rubber cover 61. In this embodiment, the one-way valve mounting base 5 is installed inside the second housing 3.

[0032] A one-way valve mounting hole is provided through the one-way valve mounting base 5. A vent hole 51 is arranged around the one-way valve mounting hole. A connecting part 62 is installed through the one-way valve mounting hole. The upper end of the connecting part 62 faces the first outlet section 21, and the lower end of the connecting part 62 is connected to a soft rubber cover 61. The soft rubber cover 61 is located on the end face of the one-way valve mounting base 5 facing the second outlet section 31. The connecting part 62 has a shoulder 621. The shoulder 621 and the soft rubber cover 61 respectively block the two ends of the one-way valve mounting hole. The one-way valve 6 is connected to the one-way valve mounting base 5 through the connecting part 62. The soft rubber cover 61 tightly covers the port of the vent hole 51 facing the second outlet section 31, blocking the communication between the first outlet section 21 and the second outlet section 31, thereby closing the first outlet section 21. Air pump assembly 1 draws in air from the outside through the air intake component and discharges it to the first air outlet 21. The high-pressure gas pushes the soft rubber cover 61 away from the vent 51, connecting the first air outlet 21 with the second air outlet 31. After connection, air enters the water through the air outlet channel and air outlet component 4, achieving the purpose of oxygenation. The soft rubber cover 61 is thin and easily opened by the high-pressure airflow. When air pump assembly 1 stops blowing air, the soft rubber cover 61 returns to its original position under its own elasticity, tightly covering the port of vent 51 facing the second air outlet 31. The surface of the soft rubber cover 61 facing the second air outlet 31 is a convex arc-shaped surface, which makes it easy to return to its original position after being opened by the high-pressure airflow.

[0033] When the air pump assembly 1 stops working, and without a check valve on the air outlet component 4, water in the aquarium will flow back into the air outlet channel from the air outlet component 4. The check valve 6 and its mounting base 5, along with the soft rubber cap 61, seal the air outlet section, effectively preventing backflow of water from the air outlet section 21 into the air pump assembly 1. This solves the problem of water backflow caused by negative pressure when a traditional aerator pump stops working, improving safety. Therefore, there is no need to install an additional check valve, improving the product's appearance and reducing the possibility of operational errors.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An aquarium oxygenation air pump that prevents backflow, characterized by, The device includes a housing, an air pump assembly installed inside the housing, an air intake component communicating with the air intake end of the air pump assembly, and an air outlet channel communicating with the air outlet end of the air pump assembly. An air outlet component extends from the housing and communicates with the air outlet end of the air outlet channel. The air intake component extends from the housing. A one-way valve mounting seat and a one-way valve are provided in the air outlet channel. The one-way valve mounting seat laterally obstructs the air outlet channel to divide the air outlet channel into an air outlet section communicating with the air outlet end of the air pump assembly and an air outlet section communicating with the air outlet component. The one-way valve mounting base is provided with a vent hole for connecting the first air outlet section and the second air outlet section; the one-way valve has a T-shaped structure, including a soft rubber cover and a columnar connecting part connected to the soft rubber cover. The one-way valve is connected to the one-way valve mounting base through the connecting part. The soft rubber cover is located on the end face of the one-way valve mounting base facing the second air outlet section. The end of the connecting part away from the soft rubber cover faces the first air outlet section. The soft rubber cover tightly covers the port of the vent hole facing the second air outlet section, blocking the communication between the first air outlet section and the second air outlet section; the air pump assembly draws air from the outside through the air inlet component and blows air into the first air outlet section. The blown air pushes the soft rubber cover away from the vent hole, so that the first air outlet section and the second air outlet section are connected.

2. The reverse flow preventing aquarium aerating gas pump according to claim 1, wherein, The soft rubber cap is in the form of a thin sheet.

3. The reverse flow preventing aquarium aerating gas pump of claim 2, wherein, The surface of the soft rubber cap facing the second air outlet section is a convex arc-shaped surface.

4. The reverse flow preventing aquarium aerating gas pump according to claim 1 or 2 or 3, wherein, The one-way valve mounting base is provided with a through-hole for the one-way valve, and the connecting part is installed through the one-way valve mounting hole. The connecting part is provided with a shoulder, and the shoulder and the soft rubber cover respectively block the two ends of the one-way valve mounting hole.

5. The reverse flow preventing aquarium aerating gas pump according to claim 1 or 2 or 3, wherein, The air outlet channel includes a first air passage and a second air passage. The first air passage is disposed in the first housing, and the second air passage is disposed in the second housing. The first housing and the second housing are inserted and fixed together. The one-way valve fixing seat is installed in the first housing or the second housing.

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