Adjustable automatic water adding device for fish tank
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-08-11
AI Technical Summary
[0004]然而,现有自动加水装置在加水高度调节的便捷性上存在明显不足:
[0019]This invention can monitor the water level in the aquarium in real time using a water level monitor and automatically add water when the water level is lower than the set height. By installing different numbers of extension rods in the monitoring and adjustment device and sliding to adjust the height of the extension rod's main section, the water level monitoring height can be adjusted over a wide range and with relatively high precision to adapt to the water inlet height monitoring in different usage scenarios. Moreover, the monitoring height adjustment is very convenient, which improves the ease of use and applicability of the automatic water filling device for aquariums and reduces the user's operating costs.
Smart Images

Figure CN224611617U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of automatic water filling technology for fish tanks, specifically an adjustable automatic water filling device for fish tanks. Background Technology
[0002] In homes, offices, and aquariums, fish tanks serve as important platforms for viewing and ecological aquaculture. The stability of their water levels directly impacts the living environment of aquatic organisms and the overall aesthetics of the tank. To prevent water level drops caused by evaporation or improper water changes, automatic water filling devices have gradually become a common feature in aquarium equipment.
[0003] In existing technologies, automatic water filling devices for aquariums typically achieve water level monitoring and automatic water replenishment through float switches, level sensors, or mechanical triggering mechanisms. For example, some devices utilize the buoyancy of a float as the water level changes to trigger the opening or closing of a valve in the water inlet pipe. When the water level is below a preset height, the float falls, causing the valve to open and initiating water replenishment; when the water level reaches the preset height, the float rises, pushing the valve to close and stopping water replenishment.
[0004] However, existing automatic water filling devices have significant shortcomings in terms of the convenience of adjusting the water level:
[0005] For float-type mechanical adjustment structures, the preset water level height is usually set by fixing brackets, screws, or clips. Adjustment requires manual disassembly of the brackets, rotation of screws, or adjustment of the clip positions, which is cumbersome and inefficient.
[0006] Some devices have limited water level adjustment range and cannot be adapted to aquariums of different sizes and with different aquatic organism breeding needs (such as the significant difference in water level requirements between shallow-water turtle tanks and deep-water tropical fish tanks). They have poor versatility, and users need to purchase devices with the corresponding adjustment range separately according to the aquarium specifications, which increases the cost of use.
[0007] Therefore, in response to the problems of cumbersome operation and poor versatility in the existing automatic water filling devices for aquariums, it is important to develop an automatic water filling device that is simple in structure, easy to operate, and can quickly adjust the water level. This is an important requirement for improving the user experience of aquarium equipment. Utility Model Content
[0008] To address the shortcomings of existing technologies, this utility model provides an adjustable automatic water filling device for aquariums. It can monitor the water level in real time through a water level monitor and automatically add water when the water level is lower than the set height. The monitoring and adjustment device can adapt to the water inlet height monitoring in different usage scenarios, and the monitoring height adjustment is very convenient, thus improving the ease of use and applicability of the automatic water filling device for aquariums.
[0009] To achieve the above objectives, this utility model employs the following technical solution:
[0010] An adjustable automatic water filling device for a fish tank includes a housing and a top cover. The top cover is fixedly installed on the top of the housing. A monitoring and adjustment device is provided in the housing. A sinking cavity is provided on one side of the housing. A water filling drive device is fixedly installed in the sinking cavity. A control module is also provided in the sinking cavity. A water level monitor is inserted into the bottom of the monitoring and adjustment device.
[0011] The monitoring and adjustment device includes an extension rod mother section. The housing is divided into an extension rod sliding cavity by a partition. The extension rod mother section is slidably installed in the extension rod sliding cavity. Several extension rods are sequentially connected to the lower end of the extension rod mother section. A water level monitor is installed at the bottom of the extension rod.
[0012] The extension rod mother section and the extension rod are provided with several limiting grooves at equal intervals. The bottom of the housing is provided with a fixing plate. The fixing plate is provided with a limiting protrusion on the side facing the extension rod mother section. The limiting protrusion is adapted to the limiting groove.
[0013] The water filling drive device includes a drive motor and a water pump. The water pump is located below the drive motor, and the drive motor drives the water pump to work. The water pump is connected to a pumping pipe and a water filling pipe. The pumping pipe is fixedly connected to the water inlet, which is located at the bottom of the sinking chamber. The water inlet is connected to a water source through a water pipe, and the water filling pipe is connected to the water inlet, which is located at the bottom of the housing.
[0014] The bottom of the sinking cavity is equipped with a power supply interface, which is connected to the control module via a wire.
[0015] A partition is fixedly installed at the bottom of the shell on the side of the sinking cavity. There is an installation gap between the partition and the side wall of the sinking cavity. A threaded fixing rod is installed on the partition by threads. An adjustment cap is provided at the end of the threaded fixing rod away from the installation gap.
[0016] The housing is provided with a connecting column, the bottom of the top cover is provided with a bolt seat, the connecting column is installed with a bolt, the bolt is connected to the bolt seat by a thread, and the top cover is fixedly connected to the housing by the connecting column, the bolt seat and the connected bolt.
[0017] The extension rod has a connection slot on each side. The connection slots of the two extension rods are connected together and a connector is slidably inserted into them. Several extension rods are fixedly connected together through the connection slots and connectors.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This invention can monitor the water level in the aquarium in real time using a water level monitor and automatically add water when the water level is lower than the set height. By installing different numbers of extension rods in the monitoring and adjustment device and sliding to adjust the height of the extension rod's main section, the water level monitoring height can be adjusted over a wide range and with relatively high precision to adapt to the water inlet height monitoring in different usage scenarios. Moreover, the monitoring height adjustment is very convenient, which improves the ease of use and applicability of the automatic water filling device for aquariums and reduces the user's operating costs. Attached Figure Description
[0020] Figure 1 This is a first-person view structural diagram of the entire utility model;
[0021] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure when one extension rod of this utility model is installed;
[0023] Figure 4 This is a schematic diagram of the internal structure of the casing of this utility model;
[0024] Figure 5 This is a schematic diagram of the internal structure of some parts of the housing of this utility model;
[0025] Figure 6 This is a schematic diagram of part of the monitoring and adjustment device of this utility model;
[0026] Figure 7 This is a schematic diagram of the fixing plate and limiting protrusion structure of this utility model.
[0027] The following are the reference numerals in the attached diagram: 1. Housing; 2. Top cover; 11. Monitoring and adjustment device; 12. Sinking cavity; 13. Water filling drive device; 14. Control module; 15. Water level monitor; 50. Installation gap; 51. Partition plate; 52. Threaded fixing rod; 53. Adjusting cap; 61. Connecting column; 62. Bolt seat; 110. Extension rod sliding cavity; 111. Extension rod female section; 112. Extension rod; 116. Limiting groove; 117. Fixing plate; 118. Limiting protrusion; 120. Power supply interface; 131. Water filling pipe; 132. Water inlet; 133. Water injection port; 1121. Connecting slot; 1122. Connector. Detailed Implementation
[0028] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0029] Combined with appendix Figures 1-7 An adjustable automatic water filling device for a fish tank includes a housing 1 and a top cover 2. The top cover 2 is fixedly installed on the top of the housing 1. A monitoring and adjustment device 11 is provided in the housing 1. A sinking cavity 12 is provided on one side of the housing 1. A water filling drive device 13 is fixedly installed in the sinking cavity 12. A control module 14 is also provided in the sinking cavity 12. A water level monitor 15 is inserted into the bottom of the monitoring and adjustment device 11. The water filling drive device 13 is fixedly installed at the bottom of the sinking cavity 12 by several bolts. The control module 14 is fixedly installed in the housing 1 by bolts. The water level monitor 15 is a photoelectric liquid level sensor. Several partitions are provided in the housing 1. The partitions are provided with water filling pipe limiting grooves to limit the position of the water filling pipe. The bottom of the top cover 2 is also provided with corresponding partitions and limiting grooves. The control module 14 is a control circuit board. The control module 14 is electrically connected to the power supply interface 120, the drive motor and the water level monitor 15 through wires. It can automatically control the operation of the water filling drive device 13 according to the monitoring signal of the water level monitor 15. The control module 14 can also adjust and set different water filling times for each water filling.
[0030] The monitoring and adjustment device 11 includes an extension rod mother section 111. An extension rod sliding cavity 110 is separated from the housing 1 by a partition. The extension rod mother section 111 is slidably installed in the extension rod sliding cavity 110. A plurality of extension rods 112 are sequentially connected to the lower end of the extension rod mother section 111. A water level monitor 15 is installed at the bottom of each extension rod 112. The top of the extension rod mother section 111 has a sliding contact end adapted to the extension rod sliding cavity 110, which also serves to prevent the extension rod mother section 111 from detaching from the housing 1. A power cable slot is provided on the partition of the extension rod sliding cavity 110 for the power cable to pass through. By installing different numbers of extension rods 112, the water filling height can be significantly adjusted. By adjusting the sliding of the extension rod mother section 111, the water inlet monitoring height can be adjusted relatively precisely.
[0031] The extension rod mother section 111 and the extension rod 112 are provided with a plurality of limiting grooves 116 at equal intervals. The bottom of the housing 1 is provided with a fixing plate 117. The fixing plate 117 has a limiting protrusion 118 on the side facing the extension rod mother section 111. The limiting protrusion 118 is adapted to the limiting groove 116. Through the cooperation of the limiting protrusion 118 and the limiting groove 116, the height can be locked relatively precisely when the extension rod mother section 111 is slidably adjusted. This allows for relatively precise adjustment of the height of the water level monitor 15 compared to different numbers of extension rods 112, thereby achieving relatively precise adjustment of the water inlet height.
[0032] The water filling drive device 13 includes a drive motor and a water pump. The water pump is located below the drive motor and drives the water pump to operate. The water pump is connected to a suction pipe and a water filling pipe 131. The suction pipe is fixedly connected to a water inlet 132, which is located at the bottom of the sinking cavity 12. The water inlet 132 is connected to a water source through a water pipe. The water filling pipe 131 is connected to a water inlet 133, which is located at the bottom of the housing 1. Water enters the device from the water inlet 132 under the action of the water pump. After entering the water pump from the suction pipe, the water is discharged from the water filling pipe 131 and finally added to the fish tank through the water inlet 133.
[0033] The bottom of the sunken cavity 12 is provided with a power supply interface 120, which is connected to the control module 14 via a wire.
[0034] A partition 51 is fixedly provided at the bottom of the shell 1 on the side of the sinking cavity 12. There is an installation gap 50 between the partition 51 and the side wall of the sinking cavity 12. A threaded fixing rod 52 is installed on the partition 51 by thread. An adjustment cap 53 is provided at the end of the threaded fixing rod 52 away from the installation gap 50.
[0035] The housing 1 is provided with a connecting column 61, and the bottom of the top cover 2 is provided with a bolt seat 62. A bolt is installed in the connecting column 61, and the bolt is connected to the bolt seat 62 by a thread. The top cover 2 is fixedly connected to the housing 1 by the connecting column 61, the bolt seat 62 and the connected bolt.
[0036] The extension rod 112 has a connecting slot 1121 on each side. The connecting slots 1121 of the two extension rods 112 are connected together and a connector 1122 is slidably inserted into them. Several extension rods 112 are fixedly connected together through the connecting slots 1121 and the connectors 1122. The bottom of the extension rod female section 111 has a connecting end, which can be inserted into the connecting slot 1121 of the extension rod 112.
[0037] When in use, the device adjusts the appropriate water inlet monitoring height through the monitoring and adjustment device 11. When the water level drops to the point where it is no longer at the water level monitor 15, the water filling drive device 13 automatically works under the control of the control module 14 to add water to the fish tank.
[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An adjustable automatic water filling device for a fish tank, comprising a housing (1) and a top cover (2), characterized in that: The top cover (2) is fixedly installed on the top of the housing (1). The housing (1) is provided with a monitoring and adjustment device (11). A sinking cavity (12) is provided on one side of the housing (1). A water filling drive device (13) is fixedly installed in the sinking cavity (12). A control module (14) is also provided in the sinking cavity (12). A water level monitor (15) is inserted into the bottom of the monitoring and adjustment device (11).
2. The adjustable automatic water filling device for a fish tank according to claim 1, characterized in that: The monitoring and adjustment device (11) includes an extension rod mother section (111). The housing (1) is divided into an extension rod sliding cavity (110) by a partition. The extension rod mother section (111) is slidably installed in the extension rod sliding cavity (110). A number of extension rods (112) are connected in sequence at the lower end of the extension rod mother section (111). A water level monitor (15) is installed at the bottom of the extension rod (112).
3. The adjustable automatic water filling device for a fish tank according to claim 2, characterized in that: The extension rod mother section (111) and the extension rod (112) are provided with a plurality of limiting grooves (116) at equal intervals. The bottom of the housing (1) is provided with a fixing plate (117). The fixing plate (117) is provided with a limiting protrusion (118) on the side facing the extension rod mother section (111). The limiting protrusion (118) is adapted to the limiting groove (116).
4. The adjustable automatic water filling device for a fish tank according to claim 1, characterized in that: The water supply drive device (13) includes a drive motor and a water pump. The water pump is located below the drive motor. The drive motor drives the water pump to work. The water pump is connected to a pumping pipe and a water supply pipe (131). The pumping pipe is fixedly connected to the water inlet (132). The water inlet (132) is located at the bottom of the sinking cavity (12). The water inlet (132) is connected to the water source through a water pipe. The water supply pipe (131) is connected to the water inlet (133). The water inlet (133) is located at the bottom of the housing (1).
5. The adjustable automatic water filling device for a fish tank according to claim 1, characterized in that: The bottom of the sinking cavity (12) is provided with a power supply interface (120), which is connected to the control module (14) via a wire.
6. The adjustable automatic water filling device for a fish tank according to claim 1, characterized in that: A partition (51) is fixedly provided at the bottom of the shell (1) on the side of the sinking cavity (12). There is an installation gap (50) between the partition (51) and the side wall of the sinking cavity (12). A threaded fixing rod (52) is installed on the partition (51) by thread. An adjustment cap (53) is provided at the end of the threaded fixing rod (52) away from the installation gap (50).
7. The adjustable automatic water filling device for a fish tank according to claim 1, characterized in that: The housing (1) is provided with a connecting column (61), and the bottom of the top cover (2) is provided with a bolt seat (62). A bolt is installed in the connecting column (61), and the bolt is connected to the bolt seat (62) by a thread. The top cover (2) is fixedly connected to the housing (1) by the connecting column (61), the bolt seat (62) and the connected bolt.
8. The adjustable automatic water filling device for a fish tank according to claim 2, characterized in that: The extension rod (112) is provided with a connection slot (1121) on both sides. The connection slots (1121) of the two extension rods (112) are connected together and a connector (1122) is slidably inserted. Several extension rods (112) are fixedly connected together through the connection slots (1121) and the connector (1122).