An overflow silencing device

Abstract

This utility model relates to the field of water circulation devices, and more particularly to an overflow silencing device. The overflow silencing device is located at the inlet of a drain pipe and includes: a first chamber and a second chamber; wherein the first chamber includes: a first connecting part connecting the first chamber and the second chamber; an opening lower than the first connecting part for allowing liquid to enter the first chamber; and a second connecting part higher than the first connecting part for allowing air to enter the first chamber. This utility model's overflow silencing device, through a rational design of the dual-chamber structure and the positional relationship of each connecting part, achieves efficient silencing while ensuring smooth liquid flow, effectively solving the problems of high noise and unstable water level caused by fluctuating water flow during drainage in the overflow area of ​​an aquarium.

Description

Technical Field

[0001] This utility model relates to the field of water circulation devices, and in particular to an overflow silencing device. Background Technology

[0002] In the drainage system of aquariums such as home fish tanks, the overflow area is a crucial part for maintaining a stable water level, as it removes excess water through the drain pipe. However, the water flow in aquariums often fluctuates due to factors such as water changes and the starting and stopping of the filtration system, making precise control difficult. When water flows directly into the drain pipe, it carries a large amount of air, creating an air-liquid mixture. The air collides and breaks with the water inside the pipe, producing noticeable gurgling or impact noise, affecting the quietness of the indoor environment. On the other hand, the unstable water flow speed may cause excessive fluctuations in the overflow area's water level. If the water level is too high, it may overflow; if the water level is too low, it may increase the amount of air drawn into the drain pipe, further exacerbating the noise problem.

[0003] In existing technologies, the drain pipe of the aquarium overflow area is usually directly connected to the overflow area, lacking an effective buffer and flow stabilization structure. Some simple overflow devices attempt to reduce noise by simply increasing the pipe diameter or adding bends, but the effect is limited and cannot adapt to fluctuations in water flow. When the water flow is high, the water flow still generates noise due to the impact on the pipe, and the water level tends to rise rapidly; when the water flow is low, negative pressure can easily form in the drain pipe, causing air to be sucked in and generating siphon noise. In addition, these devices struggle to stabilize the water level in the overflow area, failing to ensure that the water level is always below or level with a specific position, and cannot provide sufficient capacity for water flows of varying volumes. As a result, the noise and stability issues during drainage have remained unresolved. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an overflow silencing device. Through the rational design of the dual-chamber structure and the positional relationship of each connecting part, it achieves efficient silencing while ensuring smooth liquid flow, effectively solving the problems of loud noise and unstable water level caused by fluctuating water flow during drainage in the overflow area of ​​the aquarium.

[0005] Therefore, the purpose of this utility model is to provide an overflow silencing device.

[0006] To achieve the purpose of this utility model, the technical solution of this utility model provides an overflow silencing device. The overflow silencing device is installed at the inlet of the drain pipe and includes: a first chamber and a second chamber; wherein, the first chamber includes: a first connecting part, which connects the first chamber and the second chamber; an opening, which is lower than the first connecting part and is used to allow liquid to enter the first chamber; and a second connecting part, which is higher than the first connecting part and is used to allow air to enter the first chamber through the second connecting part.

[0007] In one technical solution of this utility model, the first connecting part is fan-shaped.

[0008] In one technical solution of this utility model, the second chamber includes: a first pipe, the first end of the first pipe being connected to a first connecting part, the second end of the first pipe extending into a drain pipe, and a flow disturbance device being provided at the second end of the first pipe.

[0009] In one technical solution of this utility model, the second chamber includes a third connecting part, which is used for exhaust.

[0010] In one technical solution of this utility model, a backstop structure is provided at the third connecting part.

[0011] In one technical solution of this utility model, an installation groove is provided on the outer wall of the second cavity, and the anti-reverse structure is provided with an installation part. The installation groove and the installation part cooperate with each other to fix the anti-reverse structure.

[0012] In one technical solution of this utility model, the first pipeline further includes a third end, which is connected to the third connecting part.

[0013] In one technical solution of this utility model, the overflow silencing device further includes: a fixing member, which is sleeved on the first pipeline and used to fix the body of the overflow silencing device.

[0014] In one technical solution of this utility model, the fixing member is provided with a first sleeve, a second sleeve and a connecting part. The first sleeve and the second sleeve are connected by the connecting part. The first pipe is sleeved in the first sleeve and the second sleeve is sleeved in the drain pipe. The upper edge of the outer wall of the second sleeve is folded outward to form a positioning part.

[0015] In one technical solution of this utility model, the connecting part is in the shape of a spiral guide vane.

[0016] The technical solution provided by this utility model can achieve at least one of the following effects: (1) Stabilize the water level. By designing the opening of the first chamber to be lower than the first connecting part, the water level in the overflow area can be kept at a position lower than or level with the first connecting part, thus avoiding the problem of water overflow due to excessive water level. (2) Noise reduction: After the liquid enters the first chamber through the opening, it is buffered in the first chamber, which reduces the noise generated by the direct impact of the water flow on the water pipe; at the same time, the setting of the second connecting part provides an air replenishment channel for the device, avoiding negative pressure and siphon noise caused by insufficient air. (3) Adapting to flow rate changes, the cavity design of the first chamber can accommodate flow rate fluctuations within a certain range. When the water flow rate is low, excess water can be temporarily stored in the first chamber. When the water flow rate increases, the water in the first chamber can slowly flow into the second chamber through the first connecting part, ensuring the stability of drainage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0018] Figure 1 This is one of the structural schematic diagrams of the overflow silencing device of this utility model; Figure 2 This is one of the cross-sectional views of the structural schematic diagram of the overflow silencing device of this utility model; Figure 3 This is the second cross-sectional view of the structural schematic diagram of the overflow silencing device of this utility model; Figure 4 This is the third sectional view of the structural schematic diagram of the overflow silencing device of this utility model; Figure 5 This is the fourth sectional view of the structural schematic diagram of the overflow silencing device of this utility model; Figure 6 This is the fifth sectional view of the structural schematic diagram of the overflow silencing device of this utility model; Figure 7 This is the second schematic diagram of the overflow silencing device of this utility model; Figure 8 This is the sixth sectional view of the structural schematic diagram of the overflow silencing device of this utility model; Figure 9 This is the seventh sectional view of the structural schematic diagram of the overflow silencing device of this utility model; Figure 10 This is the third schematic diagram of the overflow silencing device of this utility model; Figure 11 This is the fourth schematic diagram of the overflow silencing device of this utility model; Figure 12 This is the fifth schematic diagram of the overflow silencing device of this utility model.

[0019] Explanation of reference numerals in the attached figures: 100. Overflow silencing device; 110. First chamber; 110a. Opening; 111. First connecting part; 112. Second connecting part; 120. Second chamber; 121. First pipeline; 122. Flushing device; 123. Third connecting part; 124. Anti-reverse structure; 125. Mounting groove; 130. Fixing member; 131. First sleeve; 132. Second sleeve; 133. Connecting part. Detailed Implementation

[0020] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The following reference Figures 1 to 12 The technical solutions of some embodiments of this utility model are described below.

[0025] An embodiment of this utility model provides an overflow silencing device 100, such as... Figures 1 to 12 As shown, the overflow silencing device 100 is installed at the inlet of the drain pipe 200. The overflow silencing device 100 includes: a first chamber 110 and a second chamber 120; wherein, the first chamber 110 includes: a first connecting part 111, which connects the first chamber 110 and the second chamber 120; an opening 110a, which is lower than the first connecting part 111 and is used to allow liquid to enter the first chamber 110; and a second connecting part 112, which is higher than the first connecting part 111 and is used to allow air to enter the first chamber 110 through the second connecting part 112.

[0026] The first chamber 110 provides a buffer space for the incoming liquid. With the opening 110a being lower than the first connecting part 111, the liquid needs to be filled to a certain height before flowing into the second chamber 120, which greatly slows down the initial flow velocity and reduces the noise generated by direct impact. The design of the second connecting part 112 being higher than the first connecting part 111 can replenish the air in the second chamber 120 in time, avoid water flow obstruction caused by negative pressure, and reduce eddy noise caused by gas-liquid mixing. The low position of the opening 110a ensures that no liquid residue flows in, and the first connecting part 111, as a dedicated channel, makes the liquid flow path clear and improves overflow stability.

[0027] In some embodiments of this application, such as Figure 8 As shown, the first connecting part 111 is fan-shaped.

[0028] The fan-shaped structure has a larger opening area, which increases the cross-sectional area between the first chamber 110 and the second chamber 120, allowing liquid to flow more smoothly from the first chamber 110 into the second chamber 120. Simultaneously, the arc-shaped edges of the fan guide the liquid, slowing its flow velocity and reducing noise generated by the liquid impacting the inner wall of the second chamber 120. The fan-shaped structure increases the cross-sectional area, reducing resistance to liquid flow and making the flow from the first chamber 110 to the second chamber 120 smoother, avoiding congestion. The guiding effect of the arc-shaped edges further slows the liquid flow velocity, reducing the force and frequency of the liquid impacting the inner wall of the second chamber 120, thus reducing impact noise. The fan-shaped diffusion structure causes the liquid to flow in a dispersed manner into the second chamber 120, avoiding turbulent flow caused by concentrated impacts and improving overall flow stability.

[0029] In some embodiments of this application, the second chamber 120 includes: a first pipe 121, the first end of the first pipe 121 being connected to the first connecting portion 111, the second end of the first pipe 121 extending into the drain pipe 200, and a flow disturbance device 122 being provided at the second end of the first pipe 121.

[0030] The first pipe 121 directly guides the liquid into the drain pipe 200, avoiding the risk of leakage caused by the liquid flowing freely in the second chamber 120 and improving the accuracy of the flow. The flow disturbance device 122 disperses the concentrated water flow into a dispersed state, greatly reducing the force of the liquid impacting the bottom or wall of the drain pipe 200, and reducing impact noise from the source. The dispersed water flow makes the liquid enter the drain pipe 200 more evenly, avoiding water flow turbulence caused by excessively high or low local flow velocity, ensuring a smooth drainage process and further increasing the air venting efficiency of the drain pipe 200.

[0031] In some embodiments of this application, the second chamber 120 includes a third connecting portion 123, which is used for venting.

[0032] For example, the third connecting part 123 is located at the top. The top location is designed to conform to the physical property of air rising, making exhaust more thorough and preventing residual air from affecting the operation of the device.

[0033] The third connecting part 123 promptly discharges the air accumulated in the second chamber 120 and the drain pipe 200, avoiding air resistance that hinders liquid flow and ensuring a continuous and smooth overflow process. Air accumulation can easily cause vibration and noise, and timely venting can eliminate such noise at its source and improve the overall noise reduction effect.

[0034] In some embodiments of this application, a backstop structure 124 is provided at the third connecting portion 123.

[0035] For example, such as Figure 12 As shown, the check valve 124 can be used as a check valve.

[0036] The third connecting part 123 is only used for air outlet, especially when the overflow silencer 100 is activated. At the same time, the backflow prevention structure 124 prevents external liquids and debris from entering the second chamber 120, avoiding blockage and wear of internal pipes or components, and extending the service life of the device.

[0037] In some embodiments of this application, such as Figure 7 As shown, the outer wall of the second chamber 120 is provided with an installation groove 125, and the anti-reverse structure 124 is provided with an installation part. The installation groove 125 and the installation part cooperate with each other to fix the anti-reverse structure 124.

[0038] For example, such as Figure 11 As shown, the anti-reverse structure 124 can be a respiratory membrane.

[0039] For example, the mounting section adopts a flexible snap-fit ​​structure. During installation, the flexible snap-fit ​​is inserted into the mounting groove 125 to fix the anti-reverse structure 124. During disassembly, it can be removed simply by pinching the flexible snap-fit. This detachable fixing method facilitates the installation, replacement, and maintenance of the anti-reverse structure 124, reducing the maintenance cost of the device.

[0040] The mounting part cooperates with the mounting slot 125 to prevent the anti-reverse structure 124 from loosening or falling off during exhaust or vibration, thus ensuring reliable use.

[0041] In some embodiments of this application, the first pipeline 121 further includes a third end, which is connected to the third connecting portion 123.

[0042] Specifically, liquid flows in from the first end of the first pipe 121 and flows out from the second end into the drain pipe 200. Air mixed in with the first pipe 121 or air accumulated in the second chamber 120 can be introduced into the third connecting part 123 through the third end of the first pipe 121, and then discharged through the check valve 124. This structural design simplifies the internal structure of the second chamber 120, eliminates the need for a separate air guide pipe, reduces the number of parts, lowers manufacturing costs, and allows for faster air discharge from the second chamber 120. The first pipe 121 has both flow guiding and air guiding functions, eliminating the need for a separate air guide pipe, reducing the number of parts, simplifying the internal structure, and lowering manufacturing and assembly costs. Air can be directly introduced into the third connecting part 123 through the first pipe 121, shortening the exhaust path and allowing for faster and more thorough air discharge from the chamber. The integrated functional design reduces the space occupied inside the second chamber 120, making the overall structure of the device more compact and adaptable to different installation scenarios.

[0043] In some embodiments of this application, such as Figure 9 As shown, the overflow silencing device 100 also includes a fixing member 130, which is sleeved on the first pipeline 121 and used to fix the body of the overflow silencing device 100.

[0044] In order to stably fix the overflow silencing device 100 at the opening of the drain pipe 200 and prevent the device from shaking or shifting during liquid flow, the overflow silencing device 100 also includes a fixing member 130, which is sleeved on the first pipe 121.

[0045] In some embodiments of this application, such as Figure 9As shown, the fastener 130 is provided with a first sleeve 131, a second sleeve 132 and a connecting part 133. The first sleeve 131 and the second sleeve 132 are connected by the connecting part 133. The first pipe 121 is fitted inside the first sleeve 131, and the second sleeve 132 is fitted inside the drain pipe 200. The upper edge of the outer wall of the second sleeve 132 is folded outward to form a positioning part.

[0046] The fastener 130 includes a first sleeve 131, a second sleeve 132, and a connecting part 133. Both the first sleeve 131 and the second sleeve 132 are hollow tubular structures, and they are integrally connected through the connecting part 133. The inner diameter of the first sleeve 131 matches the outer diameter of the first pipe 121, and the first pipe 121 is fitted inside the first sleeve 131, achieving a fixed connection through an interference fit. The outer diameter of the second sleeve 132 matches the inner diameter of the drain pipe 200, and the second sleeve 132 is fitted inside the drain pipe 200, also achieving a fixed connection through an interference fit. The upper edge of the outer wall of the second sleeve 132 is folded outward to form a positioning part. The positioning part has a ring-shaped plate structure. When the second sleeve 132 is inserted into the drain pipe 200, the positioning part fits against the end face of the drain pipe 200, positioning the installation position of the fastener 130 to ensure accurate installation. At the same time, it can also increase the contact area between the fastener 130 and the drain pipe 200 and improve the installation stability.

[0047] In some embodiments of this application, such as Figure 9 As shown, the connecting part 133 is in the shape of a spiral guide vane.

[0048] The connecting part 133 is in the shape of a spiral guide vane. One end of the spiral guide vane is fixedly connected to the outer wall of the first sleeve 131, and the other end is fixedly connected to the inner wall of the second sleeve 132. This spiral guide vane-shaped connecting part 133 can not only achieve a stable connection between the first sleeve 131 and the second sleeve 132, but also play a guiding role in the liquid flow process. When a small amount of liquid overflows from the gap between the second sleeve 132 and the drain pipe 200, the spiral guide vane can guide this liquid into the drain pipe 200. At the same time, the spiral structure can play a certain role in buffering and silencing the flowing liquid and air, further improving the overall noise reduction effect of the device.

[0049] In this embodiment, the overflow silencing device 100 operates as follows: When the liquid in the device reaches the overflow height, the liquid flows into the first chamber 110 through the opening 110a, where it is initially buffered and the flow speed is reduced; subsequently, the liquid flows into the first pipe 121 in the second chamber 120 through the fan-shaped first connecting part 111, and flows to its second end under the guiding effect of the first pipe 121; when the liquid flows out from the second end of the first pipe 121, it passes through the turbulence device 122. The turbulent flow effect disperses the liquid into the drain pipe 200, preventing impact noise. During the liquid flow, external air enters the second chamber 120 through the second connecting part 112 to balance the air pressure inside the chamber. The air accumulated in the second chamber 120 is then introduced into the third connecting part 123 through the third end of the first pipe 121 and discharged through the check valve 124. The fixing part 130 secures the device by using a double sleeve in conjunction with the positioning part. The spiral guide vanes assist in guiding the flow and silencing the liquid, achieving efficient silencing and stable overflow.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An overflow silencing device, wherein the overflow silencing device (100) is disposed at the inlet of a drain pipe (200), characterized in that, The overflow silencing device (100) includes: a first chamber (110) and a second chamber (120); The first chamber (110) includes: The first connecting part (111) connects the first chamber (110) and the second chamber (120). An opening (110a) is lower than the first connecting portion (111) and the opening (110a) is used to allow liquid to enter the first chamber (110). The second connecting part (112) is higher than the first connecting part (111) and is used to allow air to enter the first chamber (110) through the second connecting part (112).

2. The overflow silencing device according to claim 1, characterized in that, The first connecting part (111) is fan-shaped.

3. The overflow silencing device according to claim 1, characterized in that, The second chamber (120) includes: a first pipe (121), the first end of the first pipe (121) is connected to the first connecting part (111), the second end of the first pipe (121) extends into the drain pipe (200), and a flow disturbance device (122) is provided at the second end of the first pipe (121).

4. The overflow silencing device according to claim 3, characterized in that, The second chamber (120) includes a third connecting portion (123) for venting.

5. The overflow silencing device according to claim 4, characterized in that, A backstop structure (124) is provided at the third connecting part (123).

6. The overflow silencing device according to claim 5, characterized in that, The second chamber (120) has an installation groove (125) on its outer wall. The anti-reverse structure (124) has an installation part. The installation groove (125) and the installation part cooperate with each other to fix the anti-reverse structure (124).

7. The overflow silencing device according to claim 5, characterized in that, The first conduit (121) also includes a third end, which is connected to the third connecting part (123).

8. The overflow silencing device according to any one of claims 3 to 7, characterized in that, The overflow silencing device (100) further includes a fixing member (130), which is sleeved on the first pipeline (121) and used to fix the body of the overflow silencing device (100).

9. The overflow silencing device according to claim 8, characterized in that, The fastener (130) is provided with a first sleeve (131), a second sleeve (132) and a connecting part (133). The first sleeve (131) and the second sleeve (132) are connected through the connecting part (133). The first pipe (121) is sleeved inside the first sleeve (131), and the second sleeve (132) is sleeved inside the drain pipe (200). The upper edge of the outer wall of the second sleeve (132) is folded outward to form a positioning part.

10. The overflow silencing device according to claim 9, characterized in that, The connecting part (133) is in the shape of a spiral guide vane.

Images