Aquarium breeding filter vat and drain pipe thereof

Abstract

The utility model discloses an aquatic breeding filter vat and a drain pipe thereof, and belongs to the field of sewage treatment. According to the filtering barrel, the drain pipe is arranged at the bottom of the barrel body and is movably matched with the bottom of the barrel body in a drawing manner, and the drain plug is movably matched and mounted at the end part of the drain pipe and is used for sealing the port of the drain pipe; when the drainage pipe is pulled outwards, the inner end of the drainage pipe is separated from the drainage plug, so that the cavity of the drainage pipe is communicated with the inner cavity of the barrel body. Therefore, when the filtering barrel is in a normal filtering state, the drainage plug is used for closing the end opening of the main pipeline section all the time, the interior of the drainage pipe is prevented from being impacted by water flow, damage to the pipeline is reduced, water flow overflow caused by water flow impact is also prevented, and drainage safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aquarium breeding filtration, and more specifically, to an aquarium breeding filter barrel and a drain pipe thereof. Background Art

[0002] During the process of aquarium breeding, the control of water quality is particularly important. There are mainly two ways to treat the breeding water: one is to change the water regularly, directly discharge the breeding water containing pollutants through the drain pipe, and add purified water for supplement, which consumes more water resources; the other is to filter and recycle the water, and use the filtering equipment to purify the breeding water and then inject it into the breeding pond again. With long-term filtration, a large amount of dirt will accumulate at the bottom of the filter barrel, and it is necessary to regularly clean the dirt deposited in the filter barrel.

[0003] The cleaning of the aquarium filter barrel can be carried out manually or automatically rinsed. For example, the external filter barrel for aquarium disclosed in the patent with the publication number CN211048195U only has an inlet and an outlet for filtration function on the barrel body. When cleaning, it is necessary to first take out the filter media and then rinse the barrel body, which is time-consuming and laborious. For example, the patent with the publication number CN208726944U discloses a circulating rinsing type filtering device for water quality filtration, and the patent with the publication number CN219399158U discloses a backwashing direct-through type grading filter and dirt remover. The above designs set a sewage discharge pipe and a sewage discharge electric valve at the bottom of the filter, and can automatically rinse the internal dirt, and control the sewage discharge by the on-off of the valve. The above designs are not applicable to the aquarium breeding environment, and there is still room for further optimization in the sewage discharge safety. Once the sewage discharge pipe or the sewage discharge electric valve accidentally opens or fails, such as forgetting to close the valve after sewage discharge, it is easy to cause sewage leakage. Especially for the aquarium breeding in the home environment, once there is a leak, it will bring great trouble to the daily life of consumers, and improving the drainage safety cannot be ignored. Summary of the Utility Model

[0004] 1. Technical Problems to be Solved by the Utility Model

[0005] In view of the situation that the sewage discharge safety at the bottom of the aquarium breeding filter barrel in the prior art still needs to be improved, the utility model intends to provide an aquarium breeding filter barrel and a drain pipe thereof. The filter barrel of this solution is provided with a drain pipe at the bottom for internal flushing and sewage discharge, which can directly flush the dirt at the bottom without taking out the filter media, saving time and effort, and the use safety of the drain pipe is improved, effectively avoiding the occurrence of water leakage, and is more suitable for popularization and application.

[0006] 2. Technical Solution

[0007] To achieve the above object, the technical solution provided by the utility model is as follows:

[0008] The utility model provides an aquarium culture filter barrel, comprising: a barrel body, in which a filter component is placed; a drain pipe is arranged at the bottom of the barrel body, and the drain pipe is in a pull-out movable fit with the barrel body. A drain plug is movably installed at the end of the drain pipe located inside the barrel body, and the drain plug can seal the inner end of the drain pipe. The drain plug is configured such that when the drain pipe is axially pulled outwards, the inner end of the drain pipe can be separated from the drain plug, so that the drain pipe is communicated with the inner cavity of the barrel body; when the drain pipe is pushed back in the reverse direction, the drain plug can re-seal the inner end of the drain pipe, so that the drain pipe is not communicated with the inner cavity of the barrel body.

[0009] Furthermore, the drain pipe comprises a main pipe section and a connecting pipe section which are communicated with each other. The main pipe section is configured to extend into the barrel body, and the connecting pipe section is configured to extend outside the barrel body. A connecting port is arranged at the outer end of the connecting pipe section for connecting an external pipeline; the drain plug is movably installed at the inner end of the main pipe section.

[0010] In the drain pipe design adopted in this solution, when the filter barrel is in a normal filtering state, the drain plug always seals the port of the main pipe section, avoiding the internal part of the drain pipe from being impacted by water flow, reducing the damage to the pipeline, and also preventing water from overflowing due to the impact of water flow. The drain plug and the main pipe section adopt a pull-out fit, which is convenient for operation. In practice, it is further preferably to be provided with a drain valve on the connecting pipe section. The drain valve and the drain plug are used to achieve double protection. When bottom flushing and sewage discharge are required, the drain pipe can be first pulled out to separate it from the drain plug, and then the drain valve is opened. After double operations, drainage is carried out. After the drainage is completed, the user pushes it back in the reverse direction to re-seal the main pipe section with the drain plug. At this time, even if the drain valve is forgotten to be closed or is accidentally opened, the drain pipe will not directly drain water, enhancing the safety protection. For the convenience of realizing the pull-out operation, it is preferably to be provided with a handle for easy pulling on the connecting pipe section.

[0011] To ensure the pull-out stability of the drain pipe, furthermore, a limiting part extending outwards is arranged on the outer wall of the main pipe section of the drain pipe located inside the barrel body. The limiting part is used to limit the axial displacement of the drain pipe pulled out of the barrel body, preventing the drain pipe from being over-pulled or not pulled in place.

[0012] As an alternative design for the drain plug, furthermore, the drain plug comprises a closing part for closing the inner end port of the drain pipe and an embedded part fitted and embedded into the inner cavity of the drain pipe. The outer wall of the embedded part is sealed with the inner wall of the drain pipe, such as being provided with a sealing ring, to ensure the sealing performance between the drain plug and the drain pipe and avoid the water source in the barrel from entering the drain pipe in the non-flushing and sewage-discharging state. Specifically, a sealing groove can be circumferentially arranged on the outer wall of the embedded part of the drain plug, and the sealing ring is installed on the sealing groove. Further, a conical guiding section can be arranged at the front end of the embedded part of the drain plug, so as to facilitate the drain plug to be quickly embedded into the drain pipe and achieve sealing.

[0013] For the convenience of installing the drain plug, further, a positioning plate for installing the drain plug is provided inside the barrel. A fixed card slot that cooperates with the positioning plate is provided on the side of the drain plug facing away from the drain pipe. The positioning plate is engaged with the fixed card slot on the drain plug, which facilitates the quick positioning and installation of the drain plug, ensures its position stability, and the correspondence with the position of the drain pipe port, and avoids the offset of their positions after multiple pulls.

[0014] To further improve the safety of flushing sewage discharge, further, the drain pipe is rotatably installed in cooperation with the barrel. After the drain pipe is pulled out and separated from the drain plug, it can rotate circumferentially outside the barrel. In practice, it is preferably that the outer end of the drain pipe is initially in a vertical distribution state, with the water outlet facing upward at the high part to prevent sewage from flowing out easily; after rotation, the outer end of the drain pipe can be in a horizontal state or with the water outlet facing downward, which is convenient for external connection and sewage outflow. In practice, a drain valve can be provided at the end of the drain pipe outside the barrel. By adopting the method of first pulling, then rotating, and finally opening the valve to discharge sewage, the safety of sewage discharge can be effectively improved, and the inconvenience caused by accidental sewage outflow can be avoided.

[0015] To cooperate with the pull-out design of the drain pipe and achieve a compact design of the filter barrel, further, a receiving cavity that is recessed inward for receiving the drain pipe is provided on the outer wall of the barrel. When the drain pipe is closed by the drain plug, at least part of the drain pipe is hidden in the receiving cavity, and after the drain pipe is separated from the drain plug, the drain pipe extends outside the barrel. This helps to streamline the volume occupied by the filter barrel in the non-flushing sewage discharge state, and the overall shape is beautiful and compact. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the aquarium filter barrel in the embodiment;

[0017] Figure 2 It is a front view schematic diagram of the aquarium filter barrel in the embodiment;

[0018] Figure 3 It is an internal sectional view schematic diagram of the aquarium filter barrel in the embodiment;

[0019] Figure 4 It is an internal sectional view schematic diagram after the barrel cover of the aquarium filter barrel in the embodiment is disassembled;

[0020] Figure 5 It is an exploded structural diagram of the aquarium filter barrel in the embodiment;

[0021] Figure 6 It is a structural diagram after the barrel cover of the aquarium filter barrel in the embodiment is disassembled;

[0022] Figure 7 It is a structural diagram of the barrel cover of the aquarium filter barrel in the embodiment;

[0023] Figure 8 Schematic diagram of the bottom view of the aquarium filter bucket lid in the embodiment;

[0024] Figure 9 Schematic diagram of the structure of the water inlet seat of the aquarium filter bucket in the embodiment;

[0025] Figure 10 Schematic diagram of the bottom view of the water inlet seat of the aquarium filter bucket in the embodiment;

[0026] Figure 11 Schematic diagram of the structure after the aquarium filter bucket lid and the water inlet seat are assembled and installed in the embodiment;

[0027] Figure 12 Schematic diagram of the structure of the drain pipe of the aquarium filter bucket in the embodiment;

[0028] Figure 13 Internal sectional view of the drain pipe of the aquarium filter bucket in the embodiment;

[0029] Figure 14 Schematic diagram of the structure of the bucket body of the aquarium filter bucket in the embodiment;

[0030] Figure 15 Internal structure diagram of the bucket body of the aquarium filter bucket in the embodiment;

[0031] Figure 16 Schematic diagram of the structure of the internal filter assembly of the aquarium filter bucket in the embodiment;

[0032] Figure 17 Schematic diagram of the state change of the drain pipe of the aquarium filter bucket in the embodiment, where a is the schematic diagram of the state when the drain pipe is first pulled out, and b is the schematic diagram of the state when the drain pipe is pulled out and rotated to the horizontal state.

[0033] Explanation of the reference numerals in the schematic diagram:

[0034] 100, bucket body; 101, accommodation cavity; 102, buckle; 103, sewage outlet; 104, support rib; 105, fixing plate; 106, positioning plate; 107, positioning groove;

[0035] 110, filter assembly; 111, water inlet channel; 112, filter basket frame; 113, avoidance cavity;

[0036] 200, bucket lid; 201, water inlet pipe; 202, water outlet pipe; 203, switch installation port; 204, pipe inlet; 205, pipe outlet; 206, support part;

[0037] 210, control switch; 211, switch part; 212, blocking part;

[0038] 220. Water inlet seat; 221. Outlet connection port; 222. Inlet connection port; 223. Sewage connection port; 224. Installation part; 225. Connecting rib plate; 226. Limiting rib plate; 227. Bottom wall part; 228. Ring wall part;

[0039] 300. Drain pipe; 301. Handle; 302. Drain valve;

[0040] 310. Main pipe section; 311. Connecting pipe section; 312. Connecting part; 313. Limiting part;

[0041] 320. Drain plug; 321. Sealing part; 322. Fixing part; 323. Sealing ring; 324. Fixing card slot. Detailed implementation mode

[0042] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings.

[0043] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0044] The present utility model will be further described below with reference to the embodiments.

[0045] Embodiment

[0046] Combined with Figures 1 - 17 As shown, an aquarium filtration bucket in this embodiment includes a bucket body 100. A filter assembly 110 is placed inside the bucket body 100. A drain pipe 300 is provided at the bottom of the bucket body 100. The drain pipe 300 is in a pull-out and movable fit with the bucket body 100. A drain plug 320 is movably fitted and installed at the end of the drain pipe 300 inside the bucket body 100. The drain plug 320 can seal the inner end of the drain pipe 300. The drain plug 320 is configured such that when the drain pipe 300 is axially pulled outwards, the inner end of the drain pipe 300 can be separated from the drain plug 320, enabling the drain pipe 300 to communicate with the inner cavity of the bucket body 100. When the drain pipe 300 is pushed back in the opposite direction, the drain plug 320 can re-seal the inner end of the drain pipe 300, making the drain pipe 300 not communicate with the inner cavity of the bucket body 100.

[0047] In this embodiment, the drain pipe 300 can be used to achieve the sewage discharge function. When flushing the barrel body 100, the flushing water is discharged through the drain pipe 300 at the bottom. To improve the safety of the sewage discharge process, the drain pipe 300 is set as a pull-out structure and sealed by a sewage plug 320. Specifically, the sewage outlet 103 is generally arranged at the bottom of the barrel body 100. The bottom of the barrel body 100 mentioned here can be either on the bottom end wall surface of the barrel body 100 or on the side wall surface near the lower part of the barrel body 100. For the convenience of pipe connection and practical application in this embodiment, the sewage outlet 103 can be opened on the side wall surface near the bottom of the barrel body 100. The drain pipe 300 is movably and cooperatively installed in the sewage outlet 103, and a sealing member is provided between the drain pipe 300 and the sewage outlet 103 to maintain the seal. A sewage valve 302 can be further arranged at the outer end of the drain pipe 300 to control the on-off of the pipeline. In the normal filtration state, the inside of the drain pipe 300 is closed by the sewage plug 320, so that the sewage in the barrel will not enter the drain pipe 300, and the water flow pressure impact on the drain pipe 300 can also be avoided. Especially when the sewage valve 302 is accidentally opened and forgotten to be closed, the direct outflow of sewage through the drain pipe 300 can be avoided to cause damage. Only when in the flushing and cleaning state, at this time the user actively pulls out the drain pipe 300 to make the drain pipe 300 separate from the sewage plug 320, can the flushing water enter the drain pipe 300 and be discharged. Even if the sewage valve 302 is accidentally opened and forgotten to be closed, if the user does not actively pull out the drain pipe 300, the water flow will not overflow, effectively improving the use safety and avoiding other losses caused by water overflow.

[0048] As an implementable design of the drain pipe 300, in combination with Figure 12 and Figure 13 as shown, the drain pipe 300 includes a connecting pipe section 311 located outside the barrel body 100 and a main pipe section 310 that can extend into the barrel body 100 through a pull-out fit. The inner end port of the main pipe section 310 is closed by the sewage plug 320. A connecting port can be provided at the outer end of the connecting pipe section 311 for connecting to an external sewage drain pipe, and the sewage valve 302 is also installed at the outer end of the connecting pipe section 311. A handle 301 for easy pulling is provided on the connecting pipe section 311. Through the handle 301, it is convenient for the user to directly perform the pulling operation, which is more convenient. Specifically, the handle 301 can be arranged at the bottom of the connecting pipe section 311.

[0049] To further improve the safety of the flushing sewage discharge, furthermore, the drain pipe 300 is rotatably and cooperatively installed with the barrel body 100. After the drain pipe 300 is pulled out and separated from the sewage plug 320, it can rotate circumferentially outside the barrel body 100. In practice, it is preferably that the outer end of the drain pipe 300 is initially in a vertical distribution state with the water outlet facing upward at a high position to avoid the easy outflow of sewage; after rotation, the outer end of the drain pipe 300 can be made to present a horizontal state or a state with the water outlet facing downward, which is convenient for external pipe connection and sewage outflow, as Figure 17As shown, state a is the vertical distribution state of the drain pipe 300, and state b is the horizontal distribution state of the drain pipe 300. Compared with the direct pulling and draining method, the multiple protection methods of first pulling, then rotating, and finally opening the valve to drain sewage further increase the protection performance and ensure that the user actively selects the drainage function, which can effectively improve the safety of sewage discharge and avoid the inconvenience caused by accidental sewage outflow.

[0050] In order to realize the compact design of the filter barrel, in conjunction with the pull-out design of the drain pipe 300, further, the outer wall of the barrel body 100 is provided with a receiving chamber 101 which is recessed inward and used to accommodate the drain pipe 300. When the drain pipe 300 is closed by the sewage plug 320, the drain pipe 300 is at least partially hidden in the receiving chamber 101. Preferably, the drain pipe 300 and the sewage valve 302 arranged on the upper part are completely hidden in the receiving chamber 101. After the drain pipe 300 is separated from the sewage plug 320, the drain pipe 300 extends to the outside of the barrel body 100. In this way, the drain pipe 300 can always be hidden in the chamber in the normal filtering state, and only needs to be pulled out and displayed in the flushing state, which effectively simplifies the volume occupied by the filter barrel, and the overall shape is beautiful and compact. In coordination with this, when the filter assembly 110 is placed in the barrel body 100, the bottom of the filter assembly 110 is provided with a corresponding avoidance chamber 113 which corresponds to the position of the receiving chamber 101.

[0051] In order to ensure the pulling stability of the drain pipe 300, further, a limiting portion 313 is provided on the outer wall of the main pipe section 310 of the drain pipe 300 located inside the barrel body 100, and the limiting portion 313 is used to limit the axial displacement of the drain pipe 300 when it is pulled out of the barrel body 100, so as to prevent the drain pipe 300 from being pulled out excessively or not pulled in place. The limiting portion 313 can be distributed around the outer wall of the main pipe section 310. Specifically, a movable matching connecting portion 312 is surrounded at the outer end of the main pipe section 310, and the connecting portion 312 is used to match and connect with the sewage outlet 103 at the bottom of the barrel body 100, so that the drain pipe 300 is matched and installed on the barrel body 100, and the connecting portion 312 can adopt a connecting flange structure. In practice, the main pipe section 310 can choose to adopt a two-stage splicing structure, and the limiting portion 313 is set on the rear section of the pipeline close to the sewage plug 320, so as to facilitate processing and installation.

[0052] As an alternative design for the sewage drain plug 320, further, the sewage drain plug 320 includes a closing portion 321 for closing the inner end port of the drain pipe 300, and an embedded portion that fits and embeds into the inner cavity of the drain pipe 300. The embedded portion can be set as a cylindrical shape that extends a certain length in the middle of the closing portion 321, and a conical guiding section can be provided at the front end of the cylinder close to the direction of the drain pipe 300 to facilitate the quick insertion of the embedded portion into the drain pipe 300. A sealing ring 323 is provided between the outer wall of the embedded portion and the inner wall of the drain pipe 300. Specifically, a sealing groove can be formed in a circle on the outer wall of the embedded portion, and the sealing ring 323 is located in this sealing groove. In this way, it is not only convenient for the sewage drain plug 320 to be quickly embedded into the drain pipe 300 and achieve sealing, but also can ensure the sealing performance between the sewage drain plug 320 and the drain pipe 300, preventing the water source in the barrel from entering the drain pipe 300 under non-flushing sewage discharge conditions.

[0053] To facilitate the installation of the sewage drain plug 320, further, a positioning plate 106 for installing the sewage drain plug 320 is provided inside the barrel 100. A fixed clamping groove 324 that cooperates with the positioning plate 106 is provided on the side of the sewage drain plug 320 facing away from the drain pipe 300, which is convenient for quickly positioning and installing the sewage drain plug 320, ensuring its position stability and the correspondence with the position of the port of the drain pipe 300, and preventing the positions of the two from shifting after multiple pulls. Specifically, a ring-shaped fixing portion 322 is further provided on the outside of the closing portion 321 of the sewage drain plug 320, and the fixed clamping groove 324 is formed between the fixing portion 322 and the closing portion 321. Correspondingly, combined with Figure 15 As shown, two groups of fixed plates 105 are provided in parallel at the bottom of the barrel 100. The positioning plate 106 is connected between the two groups of fixed plates 105, and a positioning groove 107 extending downward is provided at the top of the positioning plate 106. The fixed clamping groove 324 of the sewage drain plug 320 correspondingly fits and embeds into the positioning groove 107, and the fixing portion 322 and the closing portion 321 of the sewage drain plug 320 are respectively located on both sides of the positioning groove 107, realizing the positioning installation of the sewage drain plug 320 in the barrel 100 and ensuring the position accuracy of the sewage drain plug 320. The fixed plate 105 can also be used as the bottom support component of the upper filter assembly 110 above to support the upper filter assembly 110. Similarly, to maintain the placement stability of the filter assembly 110, multiple groups of support ribs 104 can be provided circumferentially around the bottom of the barrel 100.

[0054] Furthermore, the aquarium filtration barrel of this embodiment further includes a barrel cover 200 detachably installed on the barrel body 100. For example, multiple sets of buckle parts 102 are arranged around the barrel body 100 for snap-fit installation with the barrel cover 200. In practice, various detachable installation methods can be adopted, which will not be elaborated here. When in use, a filtration component 110 is placed in the barrel body 100. Taking a certain aquarium filtration scenario as an example in this embodiment, a downward-extending water inlet channel 111 is provided in the filtration component 110; a water inlet pipe 201 and a water outlet pipe 202 are provided on the barrel cover 200. The bottom water outlet of the water inlet pipe 201 corresponds to the position of the water inlet channel 111, and the bottom water outlet of the water outlet pipe 202 is located above the filtration component 110. In practice, the filtration component 110 preferably adopts a multi-layer filtration basket structure, that is, multiple layers of filter media are installed and fixed by a filtration basket frame 112 into an integral filter media adapted to the shape of the inner cavity of the barrel body 100. The integral filter media is placed in the barrel body 100, and a water inlet channel 111 is provided inside the integral filter media. The water inlet channel 111 preferably penetrates the height direction of the integral filter media. Combining Figure 3 with the direction indicated by the arrow, so that the water source can directly reach the bottom of the barrel body 100 through the water inlet pipe 201 and the water inlet channel 111, and then gradually filter from bottom to top using multiple layers of filter media. After filtration, the sewage is discharged through the water outlet pipe 202. Other filter media forms of the filtration component 110 can also be adopted, which will not be elaborated here.

[0055] In this solution, a drain pipe 300 is provided at the bottom of the barrel body 100 to increase the function of flushing dirt. During regular cleaning, flushing water is introduced into the water inlet pipe 201. The water flow enters the bottom of the barrel body 100 to flush the dirt deposited at the bottom, and then the flushing sewage is discharged through the drain pipe 300. In this solution, to improve the safety of the sewage discharge process, the drain pipe 300 is set as a pull-out structure and sealed by a drain plug 320. Specifically, a sewage discharge port 103 is provided at the bottom of the barrel body 100, and the drain pipe 300 is movably installed in the sewage discharge port 103, and a sealing member is provided between the drain pipe 300 and the sewage discharge port 103 to maintain sealing. A drain valve 302 can be further provided at the outer end of the drain pipe 300 to control the on-off of the pipeline. In the normal filtration state, the inside of the drain pipe 300 is closed by the drain plug 320, so that the sewage in the barrel will not enter the drain pipe 300, and the water flow pressure impact on the drain pipe 300 is also avoided. Especially when the drain valve 302 is accidentally opened and forgotten to be closed, it is avoided that the sewage directly flows out through the drain pipe 300 and causes damage. Only when in the flushing and sewage discharge state, at this time the user actively pulls out the drain pipe 300 to separate the drain pipe 300 from the drain plug 320, and the flushing sewage can enter the drain pipe 300 and be discharged. Even if the drain valve 302 is accidentally opened and forgotten to be closed, if the user does not actively pull out the drain pipe 300, there will be no water overflow situation, effectively improving the use safety and avoiding other losses caused by water overflow.

[0056] As an implementable design of the drain pipe 300, combiningFigure 12 and Figure 13 As shown, the drain pipe 300 includes a connecting pipe section 311 located outside the barrel body 100, and a main pipe section 310 that can be extended into the barrel body 100 by pulling and matching, wherein the inner end port of the main pipe section 310 is closed by a drain plug 320, and the outer end of the connecting pipe section 311 is provided with a connecting port for connecting an external pipeline, and a drain valve 302 is also installed at the outer end of the connecting pipe section 311. A handle 301 that is easy to pull out is provided on the connecting pipe section 311, and the handle 301 is convenient for users to directly pull out and operate, which is more convenient. Specifically, the handle 301 can be set at the bottom of the connecting pipe section 311.

[0057] In order to further improve the safety of flushing sewage discharge, the drain pipe 300 is further installed in a rotational manner with the barrel body 100. After the drain pipe 300 is pulled out and separated from the drain plug 320, it can be rotated around the circumference outside the barrel body 100. In practice, it is preferred that the outer end of the drain pipe 300 is initially in a vertical distribution state, with the water outlet upwardly located at a high position to prevent sewage from flowing out easily; and after rotation, the outer end of the drain pipe 300 can be horizontal or the water outlet downwardly located, which is convenient for external connection and sewage outflow, such as Figure 17 As shown, state a is the vertical distribution state of the drain pipe 300, and state b is the horizontal distribution state of the drain pipe 300. In this way, the multiple protection methods of first pulling, then rotating, and finally opening the valve to discharge sewage are adopted to further increase the protection performance and ensure that the user actively selects the sewage discharge function, which can effectively improve the safety of sewage discharge and avoid inconvenience caused by accidental sewage outflow.

[0058] In order to realize the compact design of the filter barrel, in conjunction with the pull-out design of the drain pipe 300, further, the outer wall of the barrel body 100 is provided with a receiving cavity 101 which is recessed inward and used to receive the drain pipe 300. When the drain pipe 300 is closed by the drain plug 320, the drain pipe 300 is at least partially hidden in the receiving cavity 101. Preferably, the drain pipe 300 and the drain valve 302 arranged on the upper part are completely hidden in the receiving cavity 101. After the drain pipe 300 is separated from the drain plug 320, the drain pipe 300 extends outside the barrel body 100. In this way, the drain pipe 300 can always be hidden in the cavity in the normal filtering state, and only needs to be pulled out and displayed in the flushing and sewage discharge state, which effectively simplifies the volume occupied by the filter barrel, and the overall shape is beautiful and compact. In coordination with this, the bottom of the filter assembly 110 is provided with a corresponding avoidance cavity 113 which corresponds to the position of the receiving cavity 101.

[0059] In order to ensure the pulling and pulling stability of the drain pipe 300, further, a limiting portion 313 is provided on the outer wall of the main pipe section 310 of the drain pipe 300 located inside the barrel body 100, and the limiting portion 313 is used to limit the axial displacement of the drain pipe 300 when it is pulled out of the barrel body 100, so as to prevent the drain pipe 300 from being pulled out excessively or not pulled in place. The limiting portion 313 can be distributed around the outer wall of the main pipe section 310. Specifically, a movable matching connecting portion 312 is surrounded at the outer end of the main pipe section 310, and the connecting portion 312 is used to match and connect with the sewage outlet 103 at the bottom of the barrel body 100, so that the drain pipe 300 is matched and installed on the barrel body 100, and the connecting portion 312 can adopt a connecting flange structure. In practice, the main pipe section 310 can choose to adopt a two-stage splicing structure, and the limiting portion 313 is set on the rear section of the pipe close to the direction of the drainage plug 320, so as to facilitate processing and installation.

[0060] As a selective design of the drain plug 320, further, the drain plug 320 includes a closing portion 321 for closing the inner end port of the drain pipe 300, and an embedded portion that cooperates to be embedded in the inner cavity of the drain pipe 300. The embedded portion can be set to a cylindrical shape extending a certain length in the middle of the closing portion 321, and the front end of the cylinder close to the drain pipe 300 can be provided with a conical guide section to facilitate the embedded portion to be quickly inserted into the drain pipe 300. A sealing ring 323 is provided between the outer wall of the embedded portion and the inner wall of the drain pipe 300. Specifically, a circle of sealing grooves can be opened on the outer wall of the embedded portion, and the sealing ring 323 is located in the sealing groove. In this way, the drain plug 320 is convenient for quickly embedding into the drain pipe 300 and achieving closure, and the sealing performance of the drain plug 320 and the drain pipe 300 can be guaranteed, so as to prevent the water source in the barrel from entering the drain pipe 300 in the non-flushing and sewage discharge state.

[0061] In order to facilitate the installation of the drain plug 320, a positioning plate 106 for installing the drain plug 320 is further provided in the barrel body 100, and a fixing groove 324 matching with the positioning plate 106 is provided on the side of the drain plug 320 facing away from the drain pipe 300, so as to facilitate the rapid positioning and installation of the drain plug 320, ensure its position stability, and correspondence with the port position of the drain pipe 300, and avoid the displacement of the positions of the two after multiple pulling and pulling. Specifically, an annular fixing portion 322 is also provided on the outer side of the closed portion 321 of the drain plug 320, and a fixing groove 324 is formed between the fixing portion 322 and the closed portion 321. Correspondingly, in combination with Figure 15As shown, two groups of fixed plates 105 are provided at the bottom of the barrel body 100 and are distributed in parallel. The positioning plate 106 is connected between the two groups of fixed plates 105, and a downward-extending positioning groove 107 is provided at the top of the positioning plate 106. The fixed card slot 324 of the drain plug 320 is correspondingly and fittingly embedded in the positioning groove 107, and the fixed part 322 and the closing part 321 of the drain plug 320 are respectively located on both sides of the positioning groove 107, realizing the positioning and installation of the drain plug 320 in the barrel body 100 and ensuring the position accuracy of the drain plug 320. The fixed plate 105 can also be used as the bottom support component of the upper filter component 110 above to support the upper filter component 110. Similarly, in order to maintain the placement stability of the filter component 110, a plurality of groups of support ribs 104 can be provided circumferentially around the bottom of the barrel body 100.

[0062] Furthermore, in addition to the barrel body 100, the aquarium culture filter barrel of this embodiment further includes a barrel cover 200 detachably connected to the barrel body 100. For example, a plurality of groups of buckle components 102 are provided around the barrel body 100 for snap-fit installation with the barrel cover 200. Various detachable installation methods can be adopted in practice and will not be elaborated here. The filter component 110 is placed inside the barrel body 100, and a water inlet pipe 201 and a water outlet pipe 202 are provided on the barrel cover 200. Specifically, the drain pipe 300 of this embodiment can realize the sewage discharge function of directly injecting flushing water into the barrel body 100 or into the upper part of the filter component 110 inside the barrel body 100 for flushing, and can also further cooperate with the setting of the water inlet seat 220 to realize the selectively automatic reverse flushing function. Specifically, a water inlet seat 220 is provided at the bottom of the barrel cover 200. The water inlet seat 220 has an inner cavity capable of holding water. The inner cavity of the water inlet seat 220 is connected to the water inlet pipe 201, and an inlet communication port 222, an outlet communication port 221, and a sewage discharge communication port 223 are provided on the water inlet seat 220. The outlet communication port 221 connects the inner cavity of the barrel body 100 to the water outlet pipe 202, and the inlet communication port 222 and the sewage discharge communication port 223 can respectively connect the inner cavity of the barrel body 100 to the inner cavity of the water inlet seat 220; a control switch 210 is also provided on the barrel cover 200. The control switch 210 is used to control the on-off of the inlet communication port 222 or the sewage discharge communication port 223, so that the inner cavity of the water inlet seat 220 is connected to the inner cavity of the barrel body 100 through the inlet communication port 222, or the inner cavity of the water inlet seat 220 is connected to the inner cavity of the barrel body 100 through the sewage discharge communication port 223.

[0063] In use, the filter bucket of this embodiment further includes a filter assembly 110, which is placed in the inner cavity of the bucket body 100, and a downward-extending water inlet channel 111 is formed in the filter assembly 110; the water inlet channel 111 corresponds to the position of the upper inlet communication port 222. More preferably, the water inlet channel 111, the upper inlet communication port 222, and the bottom water outlet of the water inlet pipe 201 are sequentially corresponding, and the three form a straight channel. When the inlet communication port is in the connected and open state, the filtered water enters the inner cavity of the bucket body 100 through the water inlet pipe 201, the inlet communication port 222, and the water inlet channel 111 in sequence; the water inlet channel 111 is staggered from the position of the upper sewage discharge communication port 223, so that when the inlet communication port is closed, the water source basically does not enter the water inlet channel 111, but enters the filter assembly 110 inside the bucket body 100 from top to bottom through the sewage discharge communication port 223.

[0064] Specifically, as shown in Figures 4 - 11 the water inlet seat 220 may include a bottom wall portion 227 covering the upper end of the bucket body 100, and a circumferential wall portion 228 extending upward around the bottom wall portion 227. A water-containing inner cavity with a certain height is formed between the circumferential wall portion 228 and the bottom wall portion 227. As shown in Figure 9 and Figure 10 the inlet communication port 222, the outlet communication port 221, and the sewage discharge communication port 223 are provided on the bottom wall portion 227 and penetrate the thickness direction up and down. The outlet communication port 221 may extend upward a certain height of a circumferential wall tube to closely correspond to and fit with the bottom water outlet position of the water outlet pipe 202. The bottom of the outlet communication port 221 corresponds to the upper position of the filter assembly 110, facilitating the subsequent discharged purified water to pass through the outlet communication port 221 and the water outlet pipe 202 in sequence. The upper end of the inlet communication port 222 may extend a certain height of a circumferential wall tube corresponding to the position of the water inlet pipe 201, and the lower end may extend downward a certain height of a circumferential wall tube to closely correspond to the position of the water inlet channel 111, facilitating the effective concentration of the water flow and enabling it to smoothly enter the water inlet channel 111. Similarly, the upper end of the sewage discharge communication port 223 may also extend a certain height of a circumferential wall tube, and the lower end of the sewage discharge communication port 223 corresponds to the upper position of the filter assembly 110. More precisely, preferably, the top heights of the inlet communication port 222 and the sewage discharge communication port 223 on the water inlet seat 220 are flush, and both are lower than the top height of the outlet communication port 221. The outlet communication port 221 extends upward to correspond to and be in basic contact with the bottom water outlet position of the water outlet pipe 202, facilitating the formation of a water outlet path, and the water in the inner cavity of the water inlet seat 220 is not easily introduced into the outlet communication port 221. Similarly, preferably, the bottom height of the inlet communication port 222 on the water inlet seat 220 is lower than the bottom height of the sewage discharge communication port 223. The bottom of the inlet communication port 222 extends to correspond to and be in basic contact with the position of the water inlet channel 111 on the filter assembly 110, facilitating the formation of a downward water inlet path.

[0065] In practice, the filtering component 110 can adopt an integrated filter element or a split filter element, etc. Preferably, a multi-layer filter basket structure can be adopted, that is, multiple layers of filter media are installed and fixed through the filter basket frame 112 into an integral filter medium adapted to the shape of the inner cavity of the barrel body 100. The integral filter medium is placed in the barrel body 100. An inlet channel 111 is provided inside the integral filter medium. The inlet channel 111 preferably penetrates the height direction of the integral filter medium. Combining Figure 3 with the direction indicated by the arrow, so that the water source can directly reach the lower part of the barrel body 100 through the water inlet pipe 201 and the inlet channel 111, and then gradually filter from bottom to top using multiple layers of filter media. The filtered sewage is discharged through the water outlet pipe 202. The filtering component 110 can also adopt other forms of filter media, which will not be elaborated here.

[0066] When this embodiment is actually applied, it can have a sewage filtering function and an internal backwashing and cleaning function. Under the sewage filtering function, the control switch 210 controls the bottom water outlet of the water inlet pipe 201 to be connected to the inlet channel 111 through the inlet communication port 222. At this time, the sewage discharge communication port 223 cannot be connected to the inner cavity of the barrel body 100. The sewage to be filtered can only enter the inlet channel 111 through the water inlet pipe 201 and the inlet communication port 222, realizing layer-by-layer filtering from bottom to top, and then finally discharged through the water outlet pipe 202. Under the internal backwashing and cleaning function, the control switch 210 controls the inner cavity of the water dropping seat 220 to be connected to the inner cavity of the barrel body 100 through the sewage discharge communication port 223, that is, the bottom water outlet of the water inlet pipe 201 is connected to the upper surface of the filtering component 110 through the sewage discharge communication port 223. At this time, the water inlet pipe 201 cannot be connected to the inlet communication port 222. The water source entering the water inlet pipe 201 will enter the water-containing inner cavity of the water dropping seat 220, and then flow downward through the sewage discharge communication port 223, so as to directly wash the filtering component 110 from top to bottom, realizing the reverse washing and cleaning of the filter media. The sewage after washing is then discharged through the drain pipe 300 at the bottom.

[0067] As a specific implementation option for the control switch 210, combining Figure 6As shown in the figure, the control switch 210 includes a switch part 211 and a blocking part 212. The switch part 211 is rotationally and movably installed on the bucket cover 200, and the blocking part 212 is located at the bottom end of the switch part 211. Specifically, the bucket cover 200 is provided with a pipe inlet 204 for fitting and installing the water inlet pipe 201, a pipe outlet 205 for fitting and installing the water outlet pipe 202, and a switch installation opening 203 for rotationally and movably installing the switch part 211. The switch part 211 passes through the switch installation opening 203, and the bottom of the switch part 211 has a blocking part 212. The blocking part 212 extends horizontally. Rotating the switch part 211 can drive the blocking part 212 to rotate synchronously. The inlet communication port 222 and the sewage communication port 223 are arranged close to each other and are located on the rotation path of the blocking part 212, and the bottom surface of the blocking part 212 can basically contact and cover the upper end of the inlet communication port 222 or the sewage communication port 223 to achieve a sealing and isolation effect. When the blocking part 212 rotates to the upper end of the inlet communication port 222 and covers the inlet communication port 222, the inlet communication port 222 is isolated from the water inlet pipe 201. At this time, the water entering the water inlet pipe 201 can only flow downward through the sewage communication port 223. When the blocking part 212 rotates to the upper end of the sewage communication port 223 and covers the sewage communication port 223, the sewage communication port 223 is isolated from the water inlet pipe 201. At this time, the water entering the water inlet pipe 201 can only enter the water inlet channel 111 downward through the inlet communication port 222. The control switch 210 is designed with a simple structure, low production cost, very convenient for users to operate, and good experience. Users can directly rotate the switch part 211 on the bucket cover 200 to control the on-off of the water path in different directions. The operation process is relatively convenient, and the distinction marks or arrow directions of the filtering function and the backwashing function can be further marked on the rotation path of the switch part 211, which is convenient for users to accurately and intuitively judge the internal water path direction state and distinguish the use in different states.

[0068] In practice, further, it is preferably that the bottom of the bucket cover 200 and the water inlet seat 220 are detachably installed. For example, a plurality of installation parts 224 are provided on the bottom wall part 227 of the water inlet seat 220, and they are fixedly installed on the bucket cover 200 by bolts. In this way, it is also convenient to open it in time for internal maintenance when an abnormality occurs, especially for checking and maintaining the state of the control switch 210.

[0069] Such as Figure 6As shown, the outer walls of the inlet connection port 222 and the sewage connection port 223 can be connected by a connecting rib plate 225, and the height of the connecting rib plate 225 is flush with the top height of the inlet connection port 222 and the sewage connection port 223, which not only enhances the structural strength, but also supports the bottom of the blocking portion 212 during the rotation of the blocking portion 212. Similarly, a support portion 206 is provided at the bottom of the barrel cover 200 along the rotation path of the blocking portion 212, which is used to support the top of the blocking portion 212 during the rotation process, so as to prevent the blocking portion 212 from being deformed by water pressure during long-term use, and also improve its long-term structural stability and ensure the accuracy of its position shielding and isolation. Optionally, the sewage connection port 223 can adopt a waist-shaped hole structure, the opening area of ​​which is larger than the area of ​​the inlet connection port 222, so that the water flow can flow down quickly during flushing. The blocking portion 212 correspondingly adopts a waist-shaped flat plate structure with a corresponding shape, which is simple and light in structure and can completely cover the sewage connection port 223.

[0070] In order to ensure that the blocking portion 212 can accurately shift to the corresponding position to completely close the corresponding communication port, further, the water drop seat 220 is provided with a limiting rib plate 226 on the outer side of the inlet communication port 222 and the sewage communication port 223 in the opposite direction. The limiting rib plate 226 extends upward to a height higher than the top height of the inlet communication port 222 and the sewage communication port 223, that is, higher than the height of the bottom wall of the blocking portion 212, so that the rotation angle of the blocking portion 212 can be limited. Figure 9 In terms of orientation, when the blocking portion 212 rotates to completely cover the inlet connection port 222, the right side of the blocking portion 212 abuts against the right side limit rib 226, limiting further rotation to the right; when the blocking portion 212 rotates to completely cover the sewage connection port 223, the left side of the blocking portion 212 abuts against the left side limit rib 226, limiting further rotation to the left. When blocked by the limit rib 226, the user is reminded that the rotation switch portion 211 is in place, preventing the blocking portion 212 from moving beyond the limit rib 226 and failing to fully cover the corresponding connection port.

[0071] In this solution, by designing a water drop seat 220 with multiple connecting ports and cooperating with a control switch 210, it is possible to realize rapid conversion of different waterway directions, including the filtering waterway flow direction from bottom to top and the backwashing waterway flow direction from top to bottom. The backwashing self-cleaning function is added on the basis of the conventional filtering function. The filter assembly 110 does not need to be removed during the flushing process, and the operation is relatively convenient, which effectively improves the user experience. At the same time, the pull-out drain pipe 300 design helps to further ensure the drainage safety and avoid accidental water leakage. For the aquaculture environment, the filter barrel of this solution can not only meet the simple and rapid conversion of the filtering function and the backwashing function, but also effectively improve the safety of sewage discharge and effectively avoid sewage leakage. For family aquaculture, it greatly improves the user experience.

[0072] The above has schematically described the present utility model and its implementation manners. This description is not restrictive and is only one of the implementation manners of the present utility model. In fact, it is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and without departing from the gist of the creation of the present utility model, without creative design, they devise structural manners and embodiments similar to the technical solution, all of which shall fall within the protection scope of the present utility model.

Claims

1. An aquarium breeding filter barrel, comprising: A barrel body (100), wherein a filter assembly (110) is placed in the barrel body (100); The invention is characterized in that: a drain pipe (300) is provided at the bottom of the barrel body (100), the drain pipe (300) and the barrel body (100) are movably matched in a pull-out manner, and a drain plug (320) is movably installed at the end of the drain pipe (300) located in the barrel body (100), and the drain plug (320) can seal the inner end of the drain pipe (300); when the drain pipe (300) is pulled outward along the axial direction, the inner end of the drain pipe (300) can be separated from the drain plug (320), so that the drain pipe (300) is connected to the inner cavity of the barrel body (100); when the drain pipe (300) is pushed in the reverse direction, the drain plug (320) can re-seal the inner end of the drain pipe (300), so that the drain pipe (300) is not connected to the inner cavity of the barrel body (100).

2. The aquaculture filter barrel according to claim 1, characterized in that: The drainage pipe (300) comprises a main pipe section (310) and a connecting pipe section (311) which are connected to each other. The main pipe section (310) is configured to extend to the inside of the barrel body (100), and the connecting pipe section (311) is configured to extend to the outside of the barrel body (100), and the outer end of the connecting pipe section (311) is provided with a connection port for connecting to an external pipeline; the drainage plug (320) is movably mounted on the inner end of the main pipe section (310).

3. The aquaculture filter barrel according to claim 1, characterized in that: The drain pipe (300) is rotatably mounted on the barrel body (100). After the drain pipe (300) is pulled outwards and separated from the drain plug (320), it can rotate circumferentially outside the barrel body (100).

4. An aquaculture filter barrel according to any one of claims 1 to 3, characterized in that: An accommodating cavity (101) recessed inwardly and used for accommodating the drain pipe (300) is provided on the outer wall of the barrel body (100); when the inner end of the drain pipe (300) is closed by the drain plug (320), the drain pipe (300) is at least partially hidden in the accommodating cavity (101); after the drain pipe (300) is separated from the drain plug (320), the drain pipe (300) extends outside the barrel body (100).

5. An aquaculture filter barrel according to any one of claims 1 to 3, characterized in that: The drain plug (320) comprises a closing portion (321) for closing an inner port of the drain pipe (300), and an embedded portion that cooperates and is embedded in the inner cavity of the drain pipe (300), wherein the outer wall of the embedded portion is sealed against the inner wall of the drain pipe (300).

6. An aquaculture filter barrel according to any one of claims 1 to 3, characterized in that: A fixed slot (324) is provided at one end of the drain plug (320) away from the drain pipe (300), and a positioning plate (106) for mounting the drain plug (320) is provided in the barrel body (100), and the positioning plate (106) is engaged with the fixed slot (324) on the drain plug (320).

7. The aquaculture filter barrel according to claim 2, characterized in that: A drainage valve (302) is provided on the connecting pipe section (311); or / and, a handle (301) that is easy to pull out is provided on the connecting pipe section (311).

8. The aquaculture filter barrel according to claim 2, characterized in that: A limiting portion (313) is provided on the outer wall of the main pipe section (310), and the limiting portion (313) is used to limit the axial displacement of the drainage pipe (300) when it is pulled outward.

9. The aquarium breeding filter barrel according to claim 5, characterized in that: A conical guide section is provided at the front end of the embedded part of the drain plug (320); or / and a sealing groove is provided on the outer wall of the embedded part of the drain plug (320) along the circumferential direction, and a sealing ring (323) is installed on the sealing groove.

10. A drainage pipe for an aquaculture filter barrel, characterized by: The drain pipe (300) comprises a main pipe section (310) and a connecting pipe section (311) which are connected to each other. The main pipe section (310) is configured to extend to the inside of a barrel body (100), and the connecting pipe section (311) is configured to extend to the outside of the barrel body (100). A drain plug (320) is movably mounted on the end of the main pipe section (310), and the drain plug (320) is used to seal the port of the main pipe section (310). The drain plug (320) is configured to pull the main pipe section (310) in the axial direction, so that the main pipe section (310) can be separated from the drain plug (320); and the main pipe section (310) can be pushed in the reverse direction, so that the drain plug (320) can re-seal the port of the main pipe section (310).

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