Fish tank wave making device and wave making fish tank

By combining a vacuum cylinder and a vacuum pump, a surge is generated through suction and depressurization, which solves the problem of biological damage caused by propeller rotation, achieves flexible surge control and convenient cleaning, and meets diverse biological needs.

CN223541209UActive Publication Date: 2025-11-14SHENZHEN HAIRUI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423206728.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-11-14
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Existing aquarium wave generators create waves by rotating propellers, which can harm the organisms in the aquarium. Furthermore, the wave generation effect is difficult to adjust freely, failing to meet the diverse needs of different organisms for water flow and waves.

Method used

The system employs a combination of a vacuum cylinder, a vacuum pump, and a control unit. By controlling the vacuum pump to draw in and depressurize the air in the vacuum channel, a surge is created, which avoids harm to organisms. Precise surge control is achieved through a liquid level sensor and a main control board.

Benefits of technology

It achieves harmless surge generation, can adjust the surge size according to needs to meet the diverse needs of different organisms, and is easy to clean, preventing the growth of green algae.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fish tank wave making device and a wave making device, and the fish tank wave making device comprises a vacuum cylinder, a vacuum pump and a control unit, the vacuum cylinder is provided with a lower negative pressure opening, an upper negative pressure opening and a vacuum channel, the lower negative pressure opening is communicated with the upper negative pressure opening through the vacuum channel, and the vacuum cylinder is used for being installed in the fish tank so that the lower negative pressure opening can be located below the liquid level, and the upper negative pressure opening can be located above the liquid level; the vacuum pump is communicated with the upper negative pressure opening so as to suck air in the vacuum channel; the control unit comprises a main control board, the main control board is electrically connected with the vacuum pump, and the control unit is used for controlling the vacuum pump to suck air in the vacuum channel and then controlling the vacuum pump to release pressure, so that liquid in the fish tank is sucked upwards by the vacuum cylinder and then released and falls back to form surge. The fish tank wave making device does not damage fish tank organisms, and the wave making effect can be freely adjusted.
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Description

Technical Field

[0001] This utility model relates to the technical field of fish tanks and their accessories, and in particular to a wave-making device for fish tanks and a wave-making fish tank. Background Technology

[0002] In current aquarium designs, many use propellers to create waves to simulate natural water flow and surges. However, propellers generate tremendous noise when rotating at high speeds, severely impacting fish behavior and growth. Furthermore, the propeller blades rotate at extremely high speeds, and if aquarium creatures accidentally come into contact with the rotating blades, they can suffer serious physical injury. This injury is often fatal, especially for small fish and fragile organisms. Moreover, current propeller wave-generating systems often lack precise parameter adjustment capabilities, making it difficult for users to freely control the wave effect according to the needs and preferences of the aquarium's inhabitants. This results in wave effects that are often too simplistic and fail to meet the diverse needs of different organisms for water flow and surges. Utility Model Content

[0003] The main purpose of this invention is to propose a wave generator for aquariums, aiming to solve the technical problems that wave generators can harm aquarium organisms and make it difficult to freely adjust the wave generation effect.

[0004] To achieve the above objectives, the aquarium wave generator proposed in this utility model includes a vacuum cylinder, a vacuum pump, and a control unit:

[0005] The vacuum cylinder is provided with a lower negative pressure port, an upper negative pressure port and a vacuum channel. The vacuum channel connects the lower negative pressure port and the upper negative pressure port. The vacuum cylinder is used to install in the fish tank so that the lower negative pressure port is below the liquid surface and the upper negative pressure port is above the liquid surface.

[0006] The vacuum pump is connected to the upper negative pressure port to draw air from the vacuum channel;

[0007] The control unit includes a main control board, which is electrically connected to the vacuum pump. The control unit is used to control the vacuum pump to draw air from the vacuum channel and then control the vacuum pump to depressurize, so that the vacuum cylinder draws the liquid in the fish tank upward and then releases it back down to form a surge.

[0008] Optionally, the control unit further includes a liquid level sensor for detecting the liquid level in the vacuum channel. The main control board is electrically connected to the liquid level sensor to control the vacuum pump to stop pumping based on the liquid level in the vacuum channel.

[0009] Optionally, the aquarium wave generator further includes a connecting frame, which includes a connecting ring and a fixing seat. The connecting ring is fixedly sleeved on the vacuum cylinder, and the fixing seat is connected to the outer peripheral wall of the connecting ring. The fixing seat is used to fix the aquarium to the inner wall surface.

[0010] Optionally, the number of connecting brackets is two, and the two connecting brackets are spaced apart along the length direction of the vacuum cylinder.

[0011] Optionally, the connecting ring is located near the upper negative pressure port, and a support platform is provided on the outer peripheral wall of the connecting ring, with the vacuum pump mounted on the support platform.

[0012] Optionally, the connecting frame further includes a magnetic component installed in the fixing seat, and the aquarium wave generator further includes a magnetic suction seat for mounting on the outer wall of the aquarium. The fixing seat is positioned corresponding to the magnetic suction seat so that the magnetic suction seat can hold the fixing seat firmly to the inner wall of the aquarium.

[0013] Optionally, the control unit is sealed and installed inside the fixed base, and a wiring hole is provided in the connecting ring, with one end of the wiring hole penetrating the inner cavity of the fixed base.

[0014] Optionally, the aquarium wave generator further includes a sealing cap and a pipe connector. The sealing cap is located at the upper port of the vacuum cylinder, the upper negative pressure port is located at the sealing cap, the pipe connector is sealed to the sealing cap and connected to the upper negative pressure port, and the pipe connector is connected to the vacuum pump through a pipeline.

[0015] Optionally, the aquarium wave generator further includes a silencer connected to the vacuum pump.

[0016] This utility model also proposes a wave-making device, including a fish tank body and a fish tank wave-making device as described in any of the above embodiments. The fish tank wave-making device is installed in the fish tank body such that the lower negative pressure port of the fish tank wave-making device is located below the liquid surface, and the upper negative pressure port of the fish tank wave-making device is located above the liquid surface.

[0017] This aquarium wave generator includes a vacuum cylinder, a vacuum pump, and a control unit. The control unit controls the vacuum pump to draw air from the vacuum channel of the vacuum cylinder, and then controls the vacuum pump to depressurize, so that the liquid in the aquarium can be drawn upward from the lower negative pressure port of the vacuum cylinder into the vacuum channel and then released back down to form a wave surge. Therefore, this aquarium wave generator creates waves by drawing a vacuum, which, compared with the existing method of creating waves by rotating a propeller, will not harm the organisms in the aquarium. Moreover, the height of the liquid level can be adjusted as needed, so users can select the wave size according to actual needs and achieve free control of the wave generation effect. In addition, the vacuum column is relatively easy to clean, so it can promptly remove the green algae that grows. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the aquarium wave generator of this utility model;

[0020] Figure 2 for Figure 1 A cross-sectional view of the wave generator in the middle aquarium from one angle;

[0021] Figure 3 This is a structural schematic diagram of an embodiment of the wave-making fish tank of the present invention, wherein only the wall of the fish tank body is shown for fixing the wave-making device of the fish tank;

[0022] Figure 4 for Figure 3 A cross-sectional view of the structure from one angle;

[0023] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0024] Explanation of icon numbers:

[0025] label name label name label name 10 Vacuum cylinder 11 Lower negative pressure port 12 Upper negative pressure port 13 Vacuum Channel 20 vacuum pump 30 main control board 40 Connector 41 Connecting ring 42 Fixed base 43 support platform 44 Magnetic components 50 Magnetic base 411 Wiring Hole 61 Sealing cap 62 Pipe fittings 70 muffler

[0026] 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

[0027] 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.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This utility model proposes a wave-generating device for aquariums.

[0031] In the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the aquarium wave generator includes a vacuum cylinder 10, a vacuum pump 20, and a control unit. The vacuum cylinder 10 has a lower negative pressure port 11, an upper negative pressure port 12, and a vacuum channel 13. The vacuum channel 13 connects the lower negative pressure port 11 and the upper negative pressure port 12. The vacuum cylinder 10 is installed inside the aquarium so that the lower negative pressure port 11 is below the liquid surface and the upper negative pressure port 12 is above the liquid surface. The vacuum pump 20 is connected to the upper negative pressure port 12 to draw air from the vacuum channel 13. The control unit includes a main control board 30, which is electrically connected to the vacuum pump 20. The control unit controls the vacuum pump 20 to draw air from the vacuum channel 13 and then controls the vacuum pump 20 to depressurize, so that the vacuum cylinder 10 draws the liquid in the aquarium upward and then releases it back down to form a wave.

[0032] In this embodiment, the vacuum cylinder 10 is typically cylindrical to facilitate vacuum suction. The length and diameter of the vacuum cylinder 10 can be selected and designed according to actual needs, and are not specifically limited here. To enhance the wave-making effect, the lower negative pressure port 11 should be relatively large. Optionally, the lower end of the vacuum cylinder 10 is open to form the lower negative pressure port 11, and the inner cavity of the vacuum cylinder 10 forms the vacuum channel 13. The upper negative pressure port 12 of the vacuum cylinder 10 can be configured according to the specific structure of the suction end of the vacuum pump 20, and is not specifically limited here. Since the vacuum cylinder 10 is used for installation inside the fish tank, there are many ways to fix the vacuum cylinder 10 to the inner wall of the fish tank. For example, the vacuum cylinder 10 can be fixed to the inner wall of the fish tank by adhesive, magnetic attraction, hanging, etc. The method of fixing the vacuum cylinder 10 to the inner wall of the fish tank is not specifically limited here.

[0033] A vacuum pump 20 refers to a pump that uses mechanical, physical, chemical, or physicochemical methods to generate negative pressure (a pressure lower than atmospheric pressure) within the pump, thereby drawing gas molecules from the vacuum cylinder 10 and gradually achieving a vacuum state within the cylinder 10. The vacuum pump 20 can have various structures and forms, and different types and specifications can be selected and designed according to actual needs. Optionally, the vacuum pump 20 uses a diaphragm air pump. This diaphragm air pump has advantages such as small size, light weight, high installation efficiency, and energy saving. It is understood that the suction end of the vacuum pump 20 is connected to the upper negative pressure port 12 of the vacuum cylinder 10 and is sealed to the inner circumferential wall of the vacuum cylinder 10. Thus, when the lower negative pressure port 11 of the vacuum cylinder 10 is below the surface of the aquarium liquid and the vacuum pump 20 is not operating, the vacuum channel 13 will not contain liquid but will be filled with air.

[0034] The main control board 30 can be controlled externally via remote control, buttons, etc. This main control board 30 is electrically connected to the vacuum pump 20. Upon receiving a wave-generating activation signal, the main control board 30 can control the vacuum pump 20 to operate, drawing air from the vacuum channel 13 of the vacuum cylinder 10, creating negative pressure within the vacuum cylinder 10. Due to this pressure difference, the liquid in the aquarium is drawn into the vacuum channel 13, causing the water level inside the vacuum cylinder 10 to rise and the water level outside the vacuum cylinder 10 to fall. Once the water level inside the vacuum cylinder 10 reaches a preset position, the vacuum pump 20 is depressurized, causing the water level in the vacuum channel 13 to rapidly drop due to gravity, thus creating a wave surge. To enhance the wave-generating effect, the vacuum pump 20 can be kept pressurized for a preset time after the water level in the vacuum cylinder 10 reaches the preset position. The control unit can control and adjust the water level rise height in the vacuum channel 13 by controlling the operating time of the vacuum pump 20, thereby freely controlling the size of the wave surge. The working time, pressure holding time, and pressure release time of vacuum pump 20 can be designed according to actual needs, and no specific limitations are made here.

[0035] This aquarium wave generator includes a vacuum cylinder 10, a vacuum pump 20, and a control unit. The control unit controls the vacuum pump 20 to draw air from the vacuum channel 13 of the vacuum cylinder 10, and then controls the vacuum pump 20 to depressurize, so that the liquid in the aquarium can be drawn upward from the lower negative pressure port 11 of the vacuum cylinder 10 into the vacuum channel 13 and then released back down to form a wave surge. Therefore, this aquarium wave generator creates a wave surge by drawing a vacuum, which, compared with the existing method of creating a wave surge by rotating a propeller, will not harm the organisms in the aquarium. Moreover, the height of the liquid level can be adjusted as needed, so users can select the wave size according to actual needs and achieve free control of the wave generation effect. In addition, the vacuum column is relatively easy to clean, so it can promptly remove the green algae that grows.

[0036] In one embodiment, the control unit further includes a liquid level sensor for detecting the liquid level in the vacuum channel 13. The main control board 30 is electrically connected to the liquid level sensor to control the vacuum pump 20 to stop pumping based on the liquid level in the vacuum channel 13.

[0037] In this embodiment, the structure and type of the liquid level sensor can be varied. For example, it can be a float-type, capacitive, or other contact-type liquid level sensor, or a laser or radar-type liquid level sensor. The selection and design can be made according to actual needs, and the specific type of liquid level sensor is not limited here. This liquid level sensor can accurately detect the liquid level height within the vacuum channel 13. Thus, when the liquid level sensor detects that the liquid level in the vacuum channel 13 has risen to a preset height, it can promptly feed back a signal to the main control board 30, thereby enabling the control unit to accurately control the wave size.

[0038] In one embodiment, please refer to Figures 1 to 4 The aquarium wave generator also includes a connecting frame 40, which includes a connecting ring 41 and a fixing seat 42. The connecting ring 41 is fixedly sleeved on the vacuum cylinder 10, and the fixing seat 42 is connected to the outer peripheral wall of the connecting ring 41. The fixing seat 42 is used to fix the aquarium to the inner wall surface.

[0039] In this embodiment, the connecting ring 41 and the vacuum cylinder 10 can be integrally formed or separately formed. For ease of manufacturing, the connecting ring 41 and the vacuum cylinder 10 are typically separate. The connecting ring 41 and the vacuum cylinder 10 can then be fixedly connected by welding, bonding, interference fitting, or other methods. By setting the connecting ring 41 around the outer periphery of the vacuum cylinder 10, the installation stability of the vacuum cylinder 10 can be improved, effectively preventing the vacuum cylinder 10 from shaking. The fixing base 42 can be fixedly connected to the inner wall of the fish tank by bonding, hanging, magnetic attraction, or other methods. This allows the vacuum cylinder 10 to be fixed to the inner wall of the fish tank via the connecting bracket 40, making the fixing method simpler and faster. Furthermore, the fixing base 42 can adapt to the inner wall of the fish tank to ensure a reliable connection.

[0040] Furthermore, there are two connecting brackets 40, which are spaced apart along the length of the vacuum cylinder 10. In this way, both the upper and lower sides of the vacuum cylinder 10 are connected to the inner wall of the aquarium through the connecting brackets 40, which can further improve the connection stability between the vacuum cylinder 10 and the aquarium and effectively prevent the vacuum cylinder 10 from shaking during wave generation and affecting the wave generation effect.

[0041] In one embodiment, such as Figures 1 to 4 As shown, the connecting ring 41 is close to the upper negative pressure port 12, and the outer peripheral wall of the connecting ring 41 is provided with a support platform 43, on which the vacuum pump 20 is installed.

[0042] In this embodiment, by positioning the connecting ring 41 close to the upper negative pressure port 12 and installing the vacuum pump 20 on a support platform 43 on the connecting ring 41, the vacuum pump 20 and the aquarium do not need to be separately fixed, reducing the difficulty of assembling the aquarium wave generator and making the overall structure more compact. To improve structural strength, the support platform 43 and the connecting ring 41 can optionally be integrally formed. The vacuum pump 20 and the support platform 43 can be fixedly connected by methods such as bonding, welding, or snap-fitting.

[0043] In one embodiment, please refer to Figures 3 to 5 The connecting frame 40 also includes a magnetic component 44, which is installed in the fixing seat 42. The aquarium wave generator also includes a magnetic base 50, which is used to install on the outer wall of the aquarium. The position of the fixing seat 42 corresponds to the magnetic base 50, so that the magnetic base 50 can fix the fixing seat 42 to the inner wall of the aquarium.

[0044] In this embodiment, the magnetic component 44 can specifically be a magnetic plate, a magnetic ring, or multiple magnetic blocks. The magnetic component 44 can be fixedly installed in the fixing base 42 by means of embedding, bonding, etc. The magnetic base 50 can be fixedly connected to the outer wall of the fish tank by bonding. By setting the magnetic base 50 on the outer wall of the fish tank, the connecting frame 40 is equipped with the magnetic component 44. In this way, the connecting frame 40 does not need to be bonded to the inner wall of the fish tank, but is magnetically fixed to the inner wall of the fish tank by the magnetic base 50. This can effectively prevent the connecting frame 40 from falling off the inner wall of the fish tank due to the failure of glue after long-term immersion in water, thereby making the installation of the vacuum cylinder 10 in the fish tank more stable and reliable.

[0045] In one embodiment, such as Figure 4 and Figure 5As shown, the control unit is sealed and installed within the mounting base 42. A wiring hole 411 is provided within the connecting ring 41, with one end of the wiring hole 411 penetrating the inner cavity of the mounting base 42. This sealed installation of the control unit within the mounting base 42 prevents liquid from entering the mounting base 42 and causing control unit failure. Furthermore, the wiring hole 411 within the connecting ring 41 allows the connecting wires between the control unit and the vacuum pump 20 to be routed through the mounting base 42 and the connecting ring 41, preventing exposed wires and thus improving overall safety.

[0046] In one embodiment, please refer to Figures 1 to 4 The aquarium wave generator also includes a sealing cover 61 and a pipe connector 62. The sealing cover 61 is located at the upper port of the vacuum cylinder 10, and the upper negative pressure port 12 is located at the sealing cover 61. The pipe connector 62 is sealed to the sealing cover 61 and connected to the upper negative pressure port 12. The pipe connector 62 is connected to the vacuum pump 20 through a pipeline.

[0047] In this embodiment, the sealing cap 61 and the vacuum cylinder 10 can be sealed together using rubber rings, silicone rings, etc. Specifically, the upper end of the vacuum cylinder 10 is open, forming an upper port. This allows the sealing cap 61 and the vacuum cylinder 10 to be separate, with the sealing cap 61 covering the upper port of the vacuum cylinder 10, making it easier to clean the inside of the vacuum cylinder 10. In some embodiments, the sealing cap 61 and the vacuum cylinder 10 can also be integrally formed. The pipe connector 62 further facilitates the sealed connection between the pipeline and the sealing cap 61. Thus, the vacuum pump 20's suction end, pipeline, pipe connector 62, and sealing cap 61 are sealed together, preventing air leakage between the vacuum pump 20, pipeline, upper negative pressure port 12, and vacuum channel 13. Therefore, when the vacuum pump 20 is not working, and the vacuum cylinder 10 is placed in the fish tank with the upper negative pressure port 12 above the liquid surface and the lower negative pressure port 11 below the liquid surface, the vacuum channel 13 will not be filled with liquid but with air. When the vacuum pump 20 is working, it can draw air from the vacuum channel 13, thereby filling the vacuum channel 13 with liquid to create waves.

[0048] In one embodiment, such as Figure 1 and Figure 2 As shown, the aquarium wave generator also includes a silencer 70, which is connected to the vacuum pump 20. The silencer 70 can be of many types and can be selected according to actual needs; no specific limitation is made here. By connecting the silencer 70 to the vacuum pump 20, the silencer 70 can reduce the noise of the vacuum pump 20 during operation, thereby ensuring the comfort of the fish's living environment.

[0049] This utility model also proposes a wave-generating fish tank; please refer to [reference needed]. Figures 3 to 5The wave-making aquarium includes an aquarium body and a wave-making device. The specific structure of the wave-making device is as described in the above embodiments. The wave-making device is installed inside the aquarium body, such that the lower negative pressure port 11 of the wave-making device is located below the liquid surface, and the upper negative pressure port 12 of the wave-making device is located above the liquid surface. Since this wave-making device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0050] The shape of the aquarium body can vary, such as being cube, cuboid, or cylindrical, and can be selected and designed according to actual needs. There are also many ways to connect the wave generator to the inner wall of the aquarium body, such as adhesive bonding or magnetic fixation. When the aquarium body is cylindrical, the fixing base 42 of the wave generator should be designed with an arc shape that conforms to the inner wall of the aquarium body.

[0051] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wave generator for aquariums, characterized in that, include: A vacuum cylinder is provided with a lower negative pressure port, an upper negative pressure port and a vacuum channel. The vacuum channel connects the lower negative pressure port and the upper negative pressure port. The vacuum cylinder is used to install in a fish tank so that the lower negative pressure port is below the liquid surface and the upper negative pressure port is above the liquid surface. A vacuum pump, which is connected to the upper negative pressure port, to draw air from the vacuum channel; The control unit includes a main control board electrically connected to the vacuum pump. The control unit controls the vacuum pump to draw air from the vacuum channel and then controls the vacuum pump to depressurize, so that the vacuum cylinder draws the liquid in the aquarium upward and then releases it back down to form a surge.

2. The aquarium wave generator as described in claim 1, characterized in that, The control unit also includes a liquid level sensor for detecting the liquid level in the vacuum channel. The main control board is electrically connected to the liquid level sensor to control the vacuum pump to stop pumping based on the liquid level in the vacuum channel.

3. The aquarium wave generator as described in claim 1, characterized in that, The aquarium wave generator also includes a connecting frame, which includes a connecting ring and a fixing seat. The connecting ring is fixedly sleeved on the vacuum cylinder, and the fixing seat is connected to the outer peripheral wall of the connecting ring. The fixing seat is used to fix the aquarium to the inner wall surface.

4. The aquarium wave generator as described in claim 3, characterized in that, The number of connecting frames is two, and the two connecting frames are spaced apart along the length direction of the vacuum cylinder.

5. The aquarium wave generator as described in claim 3, characterized in that, The connecting ring is located near the upper negative pressure port, and a support platform is provided on the outer peripheral wall of the connecting ring. The vacuum pump is installed on the support platform.

6. The aquarium wave generator as described in claim 3, characterized in that, The connecting frame also includes a magnetic component, which is installed in the fixed base. The aquarium wave generator also includes a magnetic base, which is used to install on the outer wall of the aquarium. The fixed base is positioned corresponding to the magnetic base so that the magnetic base can hold the fixed base to the inner wall of the aquarium.

7. The aquarium wave generator as described in claim 3, characterized in that, The control unit is sealed and installed inside the fixed base. A wiring hole is provided inside the connecting ring, and one end of the wiring hole passes through the inner cavity of the fixed base.

8. The aquarium wave generator as described in any one of claims 1 to 7, characterized in that, The aquarium wave generator also includes a sealing cap and a pipe connector. The sealing cap is located at the upper port of the vacuum cylinder, the upper negative pressure port is located at the sealing cap, the pipe connector is sealed to the sealing cap and connected to the upper negative pressure port, and the pipe connector is connected to the vacuum pump through a pipeline.

9. The aquarium wave generator as described in any one of claims 1 to 7, characterized in that, The aquarium wave generator also includes a silencer, which is connected to the vacuum pump.

10. A wave-generating aquarium, characterized in that, The aquarium includes a fish tank body and a wave generator as described in any one of claims 1 to 9, wherein the wave generator is installed in the fish tank body such that the lower negative pressure port of the wave generator is located below the liquid surface and the upper negative pressure port of the wave generator is located above the liquid surface.