Oil suction membrane device automatically adapting to water level

Abstract

The utility model discloses an automatic adaptation oil film suction device of water level height, including the oil film suction head for sucking the oil film on water surface and the telescopic connecting pipe for being connected with the water inlet of water pump and the oil film suction head, the water outlet of telescopic connecting pipe communicates with the water inlet of water pump, and the oil film suction head can rotatable installation be in the water inlet of telescopic connecting pipe, the oil film suction head and telescopic connecting pipe are under the buoyancy of water, and telescopic connecting pipe lengthens or shortens, makes the oil film suction head float on the water surface, the utility model discloses utilize the effect of oil film suction head and telescopic connecting pipe self -weight and the buoyancy of water, makes telescopic connecting pipe according to the change of water level and automatically lengthens or shortens, whole process does not need the hand of the person to adjust, can realize the function and the purpose of automatic adaptation water level height and stepless regulation.

Description

Technical Field

[0001] This utility model relates to an oil suction film device, and more particularly to an oil suction film device that automatically adapts to the water level. Background Technology

[0002] In aquariums, after a period of time without water changes, an oily film of a certain thickness will continuously form on the water surface due to the precipitation of undigested protein and oil from high-protein food, as well as the effects of fish secretions and the decomposition of dead aquatic plants or algae. The main harms of this oily film include hindering dissolved oxygen in the water, disrupting the water quality balance, affecting light transmission, and inducing algae growth. Specifically, this manifests as systemic risks such as fish hypoxia, stunted aquatic plant growth, and ecosystem disorder. Therefore, it is necessary to continuously remove the oily film to better reduce the risk of fish mortality.

[0003] Existing hang-on aquarium filters typically come with an oil film adsorption device. However, since the distance between the water surface and the top surface of different aquariums varies, and the height of the oil film adsorption device in existing hang-on aquarium filters is adjustable in multiple stages, the height of the oil film adsorption device needs to be manually adjusted when the water level in the aquarium rises or falls. This is inconvenient to use and adjust, and cannot meet the needs of various water level heights.

[0004] Therefore, it is necessary to design an oil film adsorption device with a wide range of automatic height adjustment, which can automatically raise or lower the water level according to the water level, and achieve stepless adjustment. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing external filter oil film adsorption devices require manual adjustment and cannot automatically adjust steplessly according to the water level, and to provide an oil film adsorption device that is simple and convenient to use and automatically adapts to the water level.

[0006] The objective of this utility model can be achieved using the following technical solutions: An oil film suction device that automatically adapts to water level, comprising: Oil-absorbing film head, used to suck up oil film on the water surface; Telescopic connecting pipe, used to connect to the water pump inlet and oil suction head; As a preferred embodiment, the outlet of the telescopic connecting pipe is connected to the inlet of the water pump, and the oil suction film head is rotatably mounted on the inlet of the telescopic connecting pipe; under the buoyancy of the water, the telescopic connecting pipe extends or shortens, causing the oil suction film head to float on the water surface.

[0007] As a preferred embodiment, the oil-absorbing film head is provided with a first annular groove or a first annular protrusion, and the outer wall of the water inlet of the telescopic connecting pipe is provided with a first annular protrusion or a first annular groove; the first annular protrusion can be rotatably fitted into the first annular groove.

[0008] As a preferred embodiment, the oil-absorbing film head includes a connecting sleeve installed on the inlet of the telescopic connecting pipe, and rotating blades rotatably fitted on the connecting sleeve; the connecting sleeve has a through hole, and multiple rotating blades are provided; when the water pump draws water from the aquarium through the telescopic connecting pipe, the oil film flows into the through hole through the gap between two adjacent rotating blades and enters the inlet of the water pump.

[0009] As a preferred embodiment, the center of the inlet of the telescopic connecting pipe is provided with a first bracket with a first conical hole, and the bottom center of the oil-absorbing film head is provided with a first pin. The first pin presses against the first conical hole to form a first point support rotation structure.

[0010] As a preferred embodiment, the rotating blade is provided with a third bracket with a second ejector pin at its center, and the upper surface of the connecting sleeve is provided with a second conical hole at its center. The second ejector pin presses against the second conical hole to form a second point-supported rotating structure.

[0011] As a preferred embodiment, the telescopic connecting pipe includes at least two connecting pipes that slide together, and a limiting mechanism is provided between adjacent connecting pipes; when the two adjacent connecting pipes extend to their maximum total length, the limiting mechanism restricts the connecting pipe with a smaller diameter from disengaging from the inlet end of the connecting pipe with a larger diameter.

[0012] As a preferred embodiment, the limiting mechanism includes a first retaining ring disposed in the inlet of the larger diameter connecting pipe among two adjacent connecting pipes, and a second retaining ring disposed on the outer wall of the outlet of the smaller diameter connecting pipe among two adjacent connecting pipes; when the two adjacent connecting pipes extend to their maximum total length, the second retaining ring presses against the first retaining ring.

[0013] As a preferred embodiment, the limiting mechanism includes a guide block or guide groove on the inner wall of the larger diameter connecting pipe among two adjacent connecting pipes, and a guide groove or guide block on the outer wall of the smaller diameter connecting pipe among two adjacent connecting pipes; the guide block can be slidably sleeved in the guide groove to movably sleeve the two adjacent connecting pipes together.

[0014] As a preferred embodiment, a baffle is provided on the inner wall of the outlet of the larger diameter connecting pipe among two adjacent connecting pipes. The baffle is used to prevent the smaller diameter connecting pipe from coming out of the outlet end of the larger diameter connecting pipe.

[0015] As a preferred embodiment, the outer wall of the oil-absorbing film head or telescopic connecting pipe is provided with a buoyancy ring for increasing buoyancy.

[0016] The present invention has the following beneficial effects: 1. When the oil-absorbing film head and telescopic connecting tube are placed in the water of the aquarium, the oil-absorbing film head and telescopic connecting tube extend or shorten under the action of buoyancy and their own weight, causing the oil-absorbing film head to float on the water surface. When the water pump is working, the water and oil film on the water surface flow into the water pump inlet through the oil-absorbing film head and telescopic connecting tube, and the oil-absorbing film head rotates continuously, forming a water vortex, which improves the effect and efficiency of oil absorption. When the water level in the aquarium decreases, the telescopic connecting tube shortens, and the oil-absorbing film head also moves downwards and remains floating on the water surface, so that the oil-absorbing film head can always suck up the oil film on the water surface; similarly, when the water level in the aquarium increases, the telescopic connecting tube extends, and the oil-absorbing film head also moves upwards and remains floating on the water surface. Therefore, this utility model utilizes the weight of the oil-absorbing film head and the telescopic connecting pipe and the buoyancy of water to make the telescopic connecting pipe automatically extend or shorten according to changes in water level. The entire process does not require manual adjustment and can achieve the function and purpose of automatically adapting to water level and stepless adjustment.

[0017] 2. When the second retaining ring presses against the first retaining ring, the second and first retaining rings provide a better sealing connection, allowing the water pump to draw in more oil film from the water surface through the oil suction head, thus improving the speed and efficiency of oil film removal. The first and second retaining rings of this invention serve both a limiting and sealing function; the ingenious structural design allows the telescopic connecting pipe to stably extend or shorten with the water level. 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 these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the oil suction film device that automatically adapts to the water level height according to this utility model.

[0020] Figure 2 yes Figure 1 The front view.

[0021] Figure 3 yes Figure 2 A cross-sectional view along the AA direction.

[0022] Figure 4This is a schematic diagram of embodiment 2 of the present invention, which is an oil film suction device that automatically adapts to water level.

[0023] Figure 5 This is a schematic diagram of the telescopic connecting pipe of the oil suction film device that automatically adapts to water level according to this utility model.

[0024] Figure 6 yes Figure 5 A sectional view along the central axis.

[0025] Figure 7 This is a schematic diagram of the structure of the oil suction film head of the oil suction film device that automatically adapts to water level height after it explodes.

[0026] Figure 8 yes Figure 7 Top view.

[0027] Figure 9 This is a cross-sectional view of the oil suction head of the oil suction film device that automatically adapts to water level height according to this utility model, along the central axis.

[0028] Figure 10 yes Figure 4 Enlarged partial cross-sectional view of part A.

[0029] Figure 11 This is a schematic diagram of embodiment 3 of the present invention, which is an oil film suction device that automatically adapts to water level.

[0030] Figure 12 yes Figure 11 Enlarged partial cross-sectional view of part B. Detailed Implementation

[0031] 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. Example 1

[0032] Reference Figures 1 to 3 ,as well as Figure 5 and Figure 6 This embodiment relates to an oil film suction device, including an oil film suction head 1 for suctioning oil film from the water surface, and a telescopic connecting pipe 3 for connecting the water inlet of a water pump 2 and the oil film suction head 1. The outlet of the telescopic connecting pipe 3 is connected to the water inlet of the water pump 2, and the oil film suction head 1 is rotatably mounted on the water inlet of the telescopic connecting pipe 3. Under the buoyancy of the water, the telescopic connecting pipe 3 extends or retracts, causing the oil film suction head 1 to float on the water surface.

[0033] When the oil-absorbing head 1 and the telescopic connecting tube 3 are placed in the aquarium water, under the influence of buoyancy and their own weight, the oil-absorbing head 1 and the telescopic connecting tube 3 begin to extend or shorten, causing the oil-absorbing head 1 to float on the water surface. When the water pump 2 is working, the water and oil film on the water surface flow into the inlet of the water pump 2 through the oil-absorbing head 1 and the telescopic connecting tube 3, and the oil-absorbing head 1 rotates continuously, forming a water vortex, which improves the effect and efficiency of oil absorption. When the water level in the aquarium decreases, the telescopic connecting tube 3 shortens, and the oil-absorbing head 1 also moves downwards and remains floating on the water surface, so that the oil-absorbing head 1 can always suck up the oil film on the water surface; similarly, when the water level in the aquarium increases, the telescopic connecting tube 3 extends, and the oil-absorbing head 1 also moves upwards and remains floating on the water surface. Therefore, the present invention utilizes the weight of the oil-absorbing film head 1 and the telescopic connecting pipe 3 and the buoyancy of water to make the telescopic connecting pipe 3 automatically extend or shorten according to the change of water level. The whole process does not require manual adjustment and can realize the function and purpose of automatically adapting to the water level and stepless adjustment.

[0034] like Figures 5 to 9 As shown, the center of the inlet of the telescopic connecting pipe 3 is provided with a first support 30 with a first conical hole 301, and the bottom center of the oil-absorbing film head 1 is provided with a first pin 101. The first pin 101 presses against the first conical hole 301, forming a first point-support rotation structure. Because the oil-absorbing film head of this structure forms a point-connection support structure with the telescopic connecting pipe 3 through the insertion of the first pin 101 into the first conical hole 301, the oil-absorbing film head 1 can rotate rapidly under a small water flow, thus better forming a rapid water vortex. The first conical hole 301 restricts the horizontal movement of the first pin 101. Simultaneously, because the oil-absorbing film head floats on the water surface, the first pin 101 cannot move vertically and disengage from the first conical hole 301, allowing the first pin 101 to rotate only within the first conical hole 301. Therefore, the oil-absorbing film head 1 only needs a small water flow to generate a relatively fast rotation.

[0035] The oil-absorbing film head 1 includes a connecting sleeve 13 installed on the inlet of the telescopic connecting pipe 3, and rotating blades 14 rotatably fitted on the connecting sleeve 13. The connecting sleeve 13 has a through hole 15, and multiple rotating blades 14 are provided. When the water pump 2 draws water from the aquarium through the telescopic connecting pipe 3, the oil film flows through the gap between two adjacent rotating blades 14 into the through hole 15 and into the inlet of the water pump 2. The rotating blades 14 are inclined; when water flows through the gap between two rotating blades 14, the rotating blades 14 are pushed by the water flow and rotate. This oil-absorbing film structure uses two mutually movably connected components. During installation, the connecting sleeve 13 only needs to be tightly fitted onto the inlet of the telescopic connecting pipe 3; no processing is required at the inlet end of the telescopic connecting pipe 3, making processing and installation simpler, more convenient, and faster.

[0036] The rotating blade 14 has a third support 140 with a second ejector pin 141 at its center, and a second conical hole 131 is provided at the center of the upper surface of the connecting sleeve 13. The second ejector pin 141 presses against the second conical hole 131, forming a second point-supported rotating structure. Since the oil-absorbing film head of this structure is designed to rotate, by inserting the second ejector pin 141 into the second conical hole 131, the rotating blade 14 and the connecting sleeve 13 are in point contact, forming a support structure between two points. This allows the rotating blade 14 to rotate rapidly under a small water flow, better forming a rapid water vortex. The second conical hole 131 restricts the horizontal movement of the second ejector pin 141. Simultaneously, since the rotating blade 14 floats on the water surface, the second ejector pin 141 cannot move vertically and disengage from the second conical hole 131, meaning the second ejector pin 141 can only rotate within the second conical hole 131. Therefore, the rotating blade 14 only needs a small water flow to generate a relatively fast rotation.

[0037] The connecting sleeve 13 of the oil suction film head 1 of the present invention can rotate in point contact with the telescopic connecting pipe 3, and the rotating blade 14 can also rotate in point contact with the connecting sleeve 13 at the same time, forming two sets of rotating structures, which makes the rotation of the oil suction film head 1 smoother and more fluid. The connecting sleeve 13 and the rotating blade 14 can rotate simultaneously with very little water flow. In particular, when the connecting sleeve 13 rotates, the friction between the second pin 141 of the rotating blade 14 and the second conical hole 131 in the rotating state is reduced. That is, when rotating relative to the second conical hole 131 in the rotating state, the rotating blade 14 can rotate faster and generate a strong water vortex, thereby improving the speed and efficiency of the oil suction film.

[0038] The telescopic connecting pipe 3 includes at least two connecting pipes 31 that are slidably sleeved together, and a limiting mechanism 32 is provided between two adjacent connecting pipes 31; when the two adjacent connecting pipes 31 extend to their maximum total length, the limiting mechanism 32 prevents the connecting pipe 31 with a smaller diameter from disengaging from the inlet end of the connecting pipe 31 with a larger diameter. Figure 3 , Figure 5 and Figure 6 As can be seen, the two adjacent connecting pipes 31 are movably fitted together, meaning the smaller diameter connecting pipe 31 can slide freely inside the larger diameter connecting pipe 31. Under the influence of their own weight and buoyancy, the two connecting pipes 31 move downwards or upwards depending on the water level in the aquarium. When the water level rises, the smaller diameter connecting pipe 31 moves upwards along the axis of the larger diameter connecting pipe 31; until the smaller diameter connecting pipe 31 moves to the position restricted by the limiting mechanism 32, the length of the two adjacent connecting pipes 31 reaches its maximum value.

[0039] The limiting mechanism 32 includes a first retaining ring 33 located inside the inlet of the larger diameter connecting pipe 31 among two adjacent connecting pipes 31, and a second retaining ring 34 located on the outer wall of the outlet of the smaller diameter connecting pipe 31 among two adjacent connecting pipes 31. When the two adjacent connecting pipes 31 extend to their maximum total length, the second retaining ring 34 presses against the first retaining ring 33. When the second retaining ring 34 is not pressing against the first retaining ring 33, the water pump 2 will draw some water through the gap between the first retaining rings 33 on the outer wall of the smaller diameter connecting pipe 31, thereby reducing the flow rate of water drawn from the oil suction head 1. When the second retaining ring 34 presses against the first retaining ring 33, the second retaining ring 34 and the first retaining ring 33 provide a better sealing connection, allowing the water pump 2 to draw more oil film from the water surface through the oil suction head 1, improving the speed and efficiency of oil film removal. Therefore, the first retaining ring 33 and the second retaining ring 34 of this structure have both a limiting function and a sealing function. The ingenious structural design enables the telescopic connecting pipe 3 to stably extend or shorten with the height of the water surface.

[0040] A stop 4 is provided on the inner wall of the outlet of the larger diameter connecting pipe 31 among two adjacent connecting pipes 31. The stop 4 is used to prevent the smaller diameter connecting pipe 31 from detaching from the outlet end of the larger diameter connecting pipe 31. The stop 4 blocks the outlet end of the smaller diameter connecting pipe 31. As described in the limiting mechanism 32 of this embodiment, the stop 4 blocks the second retaining ring 34, so that the smaller diameter connecting pipe 31 cannot freely slide out or detach from the outlet end of the larger diameter connecting pipe 31.

[0041] The outer wall of the oil-absorbing film head 1 and / or the telescopic connecting pipe 3 is provided with a buoyancy ring 5 to increase buoyancy. Because the oil-absorbing film head 1 and the telescopic connecting pipe 3 have different volumes and materials, the buoyancy they experience is different. Therefore, depending on the volume and material of the oil-absorbing film head 1 and the telescopic connecting pipe 3, a buoyancy ring 5 can be provided on the oil-absorbing film head 1, or on the outer wall of the telescopic connecting pipe 3, or both can be provided on the outer walls of the oil-absorbing film head 1 and the telescopic connecting pipe 3. The buoyancy ring 5 increases the buoyancy of the oil-absorbing film head 1 and the telescopic connecting pipe 3, ensuring that the oil-absorbing film head 1 floats on the water surface as the water level changes, preventing the entire oil-absorbing film head 1 from sinking due to insufficient buoyancy. If the entire oil-absorbing film head 1 sinks, the efficiency and effect of the oil-absorbing film will decrease; therefore, it is necessary to keep at least a portion of the oil-absorbing film head 1 floating on the water surface. Example 2

[0042] This embodiment is an improvement on Embodiment 1, specifically addressing the connection structure between the oil suction head 1 and the telescopic connecting tube 3. Figure 4 and Figure 10 As shown, the oil suction head 1 is provided with a first annular groove 11 or a first annular protrusion 12, and the outer wall of the water inlet of the telescopic connecting pipe 3 is provided with a first annular protrusion 12 or a first annular groove 11; the first annular protrusion 12 is rotatably fitted into the first annular groove 11. The water inlet of the telescopic connecting pipe 3 is the upper end of the telescopic connecting pipe 3. The first annular protrusion 12 and the first annular groove 11 are connected by a clearance fit. When the water pump 2 is working, the oil suction head 1 rotates continuously under the driving force of the water flow, thereby generating a water vortex, which can improve the suction efficiency and effect of the oil film on the water surface. Example 3

[0043] This embodiment is an improvement on the limiting mechanism 32 based on Embodiment 1, such as... Figure 11 and Figure 12 As shown, the limiting mechanism 32 includes a guide block 36 or guide groove 37 on the inner wall of the larger diameter connecting pipe 31 among two adjacent connecting pipes 31, and a guide groove 37 or guide block 36 on the outer wall of the smaller diameter connecting pipe 31 among two adjacent connecting pipes 31. The guide block 36 is slidably fitted into the guide groove 37 to movably fit the two adjacent connecting pipes 31 together. The guide block 36 and the guide groove 37 are connected with a clearance fit. When the guide groove 37 is provided on the inner wall of the larger diameter connecting pipe 31, and the guide block 36 is provided on the outer wall of the smaller diameter connecting pipe 31, one end of the guide groove 37 is close to the inlet of the larger diameter connecting pipe 31, and the other end of the guide groove 37 passes through the outlet of the connecting pipe 31. After the guide block 36 is fitted into the guide groove 37, a stop block 4 is installed at the outlet of the guide groove 37 to prevent the guide block 36 from sliding out or falling off from the outlet of the guide groove 37.

[0044] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An oil film suction device that automatically adapts to water level, characterized in that, include Oil-absorbing film head, used to suck up oil film on the water surface; Telescopic connecting pipe, used to connect to the water pump inlet and oil suction head; The outlet of the telescopic connecting pipe is connected to the inlet of the water pump, and the oil suction film head is installed on the inlet of the telescopic connecting pipe. Under the buoyancy of the water, the telescopic connecting pipe extends or shortens, causing the oil suction film head to float on the water surface.

2. The oil suction film device that automatically adapts to water level according to claim 1, characterized in that, The center of the inlet of the telescopic connecting pipe is provided with a first bracket with a first conical hole, and the bottom of the center of the oil-absorbing film head is provided with a first pin. The first pin presses against the first conical hole to form a first point support rotation structure.

3. The oil suction film device that automatically adapts to water level according to claim 1, characterized in that, The oil-absorbing film head is rotatably mounted on the inlet of the telescopic connecting pipe. The oil-absorbing film head is provided with a first annular groove or a first annular protrusion. The outer wall of the inlet of the telescopic connecting pipe is provided with a first annular protrusion or a first annular groove. The first annular protrusion can be rotatably fitted into the first annular groove.

4. An oil-absorbing film device that automatically adapts to water level according to claim 1, characterized in that, The oil-absorbing film head is rotatably mounted on the inlet of the telescopic connecting pipe. The oil-absorbing film head includes a connecting sleeve mounted on the inlet of the telescopic connecting pipe and rotating blades rotatably mounted on the connecting sleeve. The connecting sleeve has a through hole, and there are multiple rotating blades. When the water pump draws water from the aquarium through the telescopic connecting pipe, the oil film flows into the through hole through the gap between two adjacent rotating blades and enters the inlet of the water pump.

5. An oil-absorbing film device that automatically adapts to water level according to claim 4, characterized in that, The rotating blade is provided with a third bracket with a second ejector pin at its center, and a second conical hole is provided at the center of the upper surface of the connecting sleeve. The second ejector pin presses against the second conical hole to form a second point-supported rotating structure.

6. An oil-absorbing film device that automatically adapts to water level according to claim 1, characterized in that, The telescopic connecting pipe includes at least two connecting pipes that slide together, and a limiting mechanism is provided between two adjacent connecting pipes; when the two adjacent connecting pipes extend to the maximum total length, the limiting mechanism restricts the connecting pipe with a smaller diameter from disengaging from the inlet end of the connecting pipe with a larger diameter.

7. An oil-absorbing film device that automatically adapts to water level according to claim 6, characterized in that, The limiting mechanism includes a first retaining ring disposed in the inlet of the larger diameter connecting pipe among two adjacent connecting pipes, and a second retaining ring disposed on the outer wall of the outlet of the smaller diameter connecting pipe among two adjacent connecting pipes; when the two adjacent connecting pipes extend to their maximum total length, the second retaining ring presses against the first retaining ring.

8. An oil-absorbing film device that automatically adapts to water level according to claim 6, characterized in that, The limiting mechanism includes a guide block or guide groove on the inner wall of the larger diameter connecting pipe in two adjacent connecting pipes, and a guide groove or guide block on the outer wall of the smaller diameter connecting pipe in two adjacent connecting pipes; the guide block can be slidably sleeved in the guide groove to movably sleeve the two adjacent connecting pipes together.

9. An oil-absorbing film device that automatically adapts to water level according to claim 7, characterized in that, A baffle is provided on the inner wall of the outlet of the larger diameter connecting pipe among two adjacent connecting pipes. The baffle is used to prevent the smaller diameter connecting pipe from coming out of the outlet end of the larger diameter connecting pipe.

10. An oil-absorbing film device that automatically adapts to water level height according to any one of claims 1 to 9, characterized in that, The outer wall of the oil-absorbing film head or telescopic connecting pipe is provided with a buoyancy ring to increase buoyancy.

Images