Fish blocking bubble curtain generating device

Abstract

The invention belongs to the technical field of fish blocking bubble curtain devices, and particularly relates to a fish blocking bubble curtain generating device which comprises a bubble curtain device, the bubble curtain device comprises a fish blocking display curtain and a first top plate, a waterproof function box is fixedly installed at the bottom of the fish blocking display curtain, and a plurality of transparent partition plates are fixedly installed in the fish blocking display curtain; a component groove is formed in the inner top of the waterproof function box, an oxygen pipe I and a waterproof strip are mounted in the component groove, a plurality of stroboscope lamps are fixedly mounted on the upper side of the waterproof strip, and a plurality of groups of rising bubbles are formed in the fish blocking display screen through oxygen; fish and other organisms observe rising bubbles in the fish blocking display screen through vision, the purpose of blocking the fish from entering the water intake is achieved, meanwhile, the stroboscope lamp is powered on to act and emit light flashing according to frequency, the fish is driven through changes of light intensity or light color within a short time, and the fish is prevented from entering the water intake position.

Description

Technical Field

[0001] The invention belongs to the field of fish-blocking bubble curtain devices, in particular to a fish-blocking bubble curtain generating device. Background Art

[0002] There are a large number of fish and other animals in rivers. In order to draw water at river water intakes or other water intakes, it is necessary to intercept fish and other animals to prevent them from being in the water intake position and affecting the use of water. In essence, the purpose is to drive away fish and other animals at a fixed position. Usually, the method that fish and other animals can recognize visually is used to drive them away to avoid the gathering of fish and other animals, such as changes in light intensity or light color in a short period of time and rising bubbles.

[0003] In traditional technology, when driving away fish and other animals at the water intake, the methods usually used are to stir the water flow and shine strong light on the water surface. These methods are not very effective in driving away fish and other animals, and they are all carried out after the fish and other animals are present at the water intake. At this time, the water quality at the water intake location may be contaminated by fish and other animals. The contaminated water quality needs to be treated, which increases the steps of water collection.

[0004] To this end, the present invention provides a fish blocking bubble curtain generating device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a fish blocking bubble curtain generating device described in the present invention comprises a bubble curtain device, the bubble curtain device comprises a fish blocking display screen and a top plate fixedly installed on the top of the fish blocking display screen, a waterproof function box is fixedly installed on the bottom of the fish blocking display screen, and a plurality of transparent partitions are fixedly installed inside the fish blocking display screen;

[0007] The inner top of the waterproof functional box is provided with a component groove, an oxygen tube and a waterproof strip are installed inside the component groove, a plurality of strobe lights are fixedly installed on the upper side of the waterproof strip, and the waterproof functional box includes oxygen generation function and power supply function.

[0008] Preferably, an oxygen tube is installed at the inner bottom of the component groove, and air inlet and outlet nozzles are installed at both ends of the oxygen tube. The oxygen tube is connected to the oxygen generating structure inside the waterproof function box through the air inlet and outlet nozzles. The oxygen tube is located directly below the waterproof strip.

[0009] Preferably, a plurality of air outlet holes are provided on the top of the oxygen tube one, and the plurality of air outlet holes are connected to the interior of the oxygen tube one. A plurality of gas cylinders are also fixedly installed inside the oxygen tube one, and both ends of the plurality of gas cylinders extend to the outside of the oxygen tube one, and the gas cylinders are not connected to the interior of the oxygen tube one.

[0010] Preferably, a plurality of conical air nozzles are installed above the waterproof strip, and porous conical cotton is fixedly installed inside the conical air nozzles, and the conical air nozzles are connected to the corresponding air outlet holes.

[0011] Preferably, the electric wires of the strobe light are installed inside the gas cylinder, and the lowermost end of the electric wires of the strobe light extends into the waterproof function box and is connected to the power supply component inside the waterproof function box.

[0012] Preferably, the transparent partition is a component made of transparent material, a partition groove is provided at the bottom of the transparent partition, the fish blocking display screen is filled with liquid, and a plurality of the transparent partitions evenly divide the internal space of the fish blocking display screen.

[0013] Preferably, a rectangular groove and an inclined groove are provided inside the transparent partition, the rectangular groove, the inclined groove and the partition groove are connected, the inclined groove is inclined, and the horizontal height of the strobe light is lower than the horizontal height of the rectangular groove.

[0014] Preferably, two bubble curtain devices are provided, and a plurality of curved structures are installed between the two bubble curtain devices, one side of the plurality of curved structures is connected to one bubble curtain device, and the other side of the plurality of curved structures is connected to another bubble curtain device.

[0015] Preferably, the curved structure includes a strip display screen and a top plate 2 fixedly mounted on the top of the strip display screen, a rubber strip is mounted on the side of the strip display screen, and the interior of the strip display screen is filled with liquid.

[0016] Preferably, a bottom plate is fixedly installed on the inner top of the strip display screen, and a conical air nozzle 2 is installed on the top of the bottom plate, and the conical air nozzle 2 is located inside the strip display screen; an oxygen tube 2 is fixedly installed on the inner top of the strip display screen, and the oxygen tube 2 is located below the bottom plate; an opening is arranged above the oxygen tube 2, and the opening is connected with the conical air nozzle 2; a rubber sleeve is installed on the bottom of the rubber strip, and a flexible air pipe is installed inside the rubber sleeve, and the flexible air pipe is connected to the oxygen tube 2; the flexible air pipe and the oxygen tube 2 form a whole, and one end of the whole is installed on the inner bottom of one bubble curtain device, and the other end is installed on the inner bottom of another bubble curtain device.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The fish blocking bubble curtain generating device described in the present invention has multiple holes arranged on an oxygen tube, so that oxygen is released from these holes and then multiple groups of rising bubbles are formed inside the fish blocking display curtain. A group of rising bubbles will exist between two adjacent transparent partitions. At this time, due to the visual setting of the fish blocking display curtain, fish and other creatures can visually observe the rising bubbles in the fish blocking display curtain, thereby preventing fish from entering the water intake. At the same time, the strobe light is powered on to produce a light that flashes at a frequency, and the fish are driven away by the change of light intensity or light color in a short period of time, so as to prevent fish from entering the water intake position.

[0019] 2. The fish-blocking bubble curtain generating device described in the present invention, oxygen rises to the inside of a conical air nozzle through the air outlet, and a porous conical cotton is arranged inside the conical air nozzle. The porous design of the porous conical cotton can release oxygen through multiple hole channels to generate more bubbles at one time. The conical design of the conical air nozzle can prevent the water inside the fish-blocking display curtain from rushing into the oxygen tube one due to pressure. When the strobe light emits light, part of the light will act on the inside of the rectangular groove and the inclined groove. The transparent partition is made of transparent material. When the light shines on the inclined inner wall of the inclined groove, refraction and reflection will occur, thereby expanding the lighting area, increasing visual visualization, and allowing fish to see more clearly.

[0020] 3. The fish-blocking bubble curtain generating device described in the present invention has a curved structure installed between two bubble curtain devices. The bendable setting of the curved structure can widen the effect of blocking fish at the water intake, allowing fish and other creatures to have a larger visual area and better interception effect. The two straight bubble curtain devices and the curved structure can change shape through the bending of the curved structure, thereby better meeting the needs of water intakes with different terrains. The bending of the curved structure is mainly achieved by the soft properties of the rubber strip. Rising bubbles and lights can also be set on the inner bottom of the second top plate to achieve the effect of blocking fish. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a three-dimensional diagram of the bubble curtain device of the present invention;

[0023] Figure 2 It is a three-dimensional schematic diagram of the fish blocking display screen in the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of the waterproof strip and the component groove in the present invention;

[0025] Figure 4 It is a three-dimensional schematic diagram of an oxygen tube in the present invention;

[0026] Figure 5It is a three-dimensional schematic diagram of the waterproof strip in the present invention;

[0027] Figure 6 It is a schematic diagram of the splitting of the transparent partition in the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the bubble curtain device and the curved structure in the present invention;

[0029] Figure 8 It is a three-dimensional schematic diagram of the bending structure in the present invention;

[0030] Fig. 9 It is a three-dimensional schematic diagram of the rubber strip and the strip display screen in the present invention.

[0031] In the figure: 1. Bubble curtain device; 11. Top plate 1; 12. Fish blocking display screen; 13. Transparent partition; 131. Partition groove; 132. Rectangular groove; 133. Inclined groove; 14. Waterproof function box; 15. Waterproof strip; 151. Strobe light; 152. Conical air nozzle 1; 153. Porous conical cotton; 16. Component groove; 17. Oxygen tube 1; 171. Inlet and outlet nozzles; 172. Air outlet; 173. Air cylinder; 2. Bending structure; 21. Top plate 2; 22. Rubber strip; 221. Rubber sleeve; 222. Flexible air pipe; 23. Strip display screen; 231. Bottom plate; 232. Conical air nozzle 2; 233. Oxygen tube 2. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] Embodiment 1

[0034] like Figure 1-Figure 5 As shown, a fish blocking bubble curtain generating device according to an embodiment of the present invention comprises a bubble curtain device 1, wherein the bubble curtain device 1 comprises a fish blocking display screen 12 and a top plate 11 fixedly mounted on the top of the fish blocking display screen 12, a waterproof function box 14 is fixedly mounted on the bottom of the fish blocking display screen 12, and a plurality of transparent partitions 13 are fixedly mounted inside the fish blocking display screen 12;

[0035] A component groove 16 is provided at the inner top of the waterproof function box 14, and an oxygen tube 17 and a waterproof strip 15 are installed inside the component groove 16. A plurality of strobe lights 151 are fixedly installed on the upper side of the waterproof strip 15. The waterproof function box 14 includes oxygen generation functions and power supply functions. An opening is provided at the top of the top plate 11. An oxygen generation component and a power supply component for generating oxygen are provided in the waterproof function box 14. A plurality of holes are provided on the oxygen tube 17, and the oxygen generated by the oxygen generation component is discharged through the holes to form bubbles.

[0036] Specifically, the bubble curtain device 1 is placed at the water intake position, the top plate 11 is higher than the water surface, and the waterproof function box 14 contacts the bottom of the water. At this time, the interior of the fish blocking display screen 12 is filled with water, and visual glass is installed on both sides of the fish blocking display screen 12. An oxygen generating component and a power supply component are installed inside the waterproof function box 14. The oxygen generating component works to fill the interior of the oxygen tube 17 with oxygen. The oxygen is released from the top of the oxygen tube 17 and then enters the interior of the fish blocking display screen 12. The oxygen forms bubbles inside the liquid of the fish blocking display screen 12 and rises. The setting of multiple transparent partitions 13 plans the internal space of the fish blocking display screen 12, that is, multiple holes are set on the oxygen tube 17 to allow oxygen to flow in. Air is released from these holes and then forms multiple groups of rising bubbles inside the fish blocking display screen 12. A group of rising bubbles will exist between two adjacent transparent partitions 13. At this time, due to the visual setting of the fish blocking display screen 12, fish and other creatures can visually observe the rising bubbles in the fish blocking display screen 12, thereby preventing fish from entering the water intake. At the same time, the strobe light 151 is energized to produce light that flashes at a frequency, and drives away fish by changing the light intensity or light color in a short period of time, so as to prevent fish from entering the water intake position. The superposition of the two methods can effectively ensure the effect of driving away and avoid the situation where fish and other creatures are driven when water is needed.

[0037] like Figure 4-Figure 5 As shown, the oxygen tube 17 is installed at the inner bottom of the component groove 16, and the two ends of the oxygen tube 17 are installed with air inlet and outlet nozzles 171. The oxygen tube 17 is connected to the oxygen generating structure inside the waterproof function box 14 through the air inlet and outlet nozzles 171. The oxygen tube 17 is located directly below the waterproof strip 15.

[0038] A plurality of air outlet holes 172 are provided above the oxygen tube 17, and the plurality of air outlet holes 172 are connected to the interior of the oxygen tube 17. A plurality of air cylinders 173 are also fixedly installed inside the oxygen tube 17, and both ends of the plurality of air cylinders 173 extend to the outside of the oxygen tube 17, and the air cylinders 173 are not connected to the interior of the oxygen tube 17.

[0039] A plurality of conical air nozzles 152 are installed above the waterproof strip 15 , and a porous conical cotton 153 is fixedly installed inside the conical air nozzles 152 . The conical air nozzles 152 are connected to the corresponding air outlet holes 172 .

[0040] The transparent partition 13 is a component made of transparent material. A partition groove 131 is provided at the bottom of the transparent partition 13. The fish blocking display screen 12 is filled with liquid. The plurality of transparent partitions 13 evenly divide the internal space of the fish blocking display screen 12.

[0041] Specifically, oxygen rises to the inside of the conical air nozzle 152 through the air outlet 172. A porous conical cotton 153 is arranged inside the conical air nozzle 152. The porous design of the porous conical cotton 153 can release oxygen through multiple hole channels to generate more bubbles at one time. The conical design of the conical air nozzle 152 can prevent the water inside the fish blocking display screen 12 from rushing into the oxygen tube 17 due to pressure. When the strobe light 151 emits light, part of the light will act on the rectangular groove 132 and the inclined groove 133. The transparent partition 13 is made of transparent material. When the light shines on the inclined inner wall of the inclined groove 133, refraction and reflection will occur, thereby expanding the lighting area and increasing visual visualization, so that the fish can see more clearly.

[0042] like Figure 5-Figure 6 As shown, the wires of the strobe light 151 are installed inside the air cylinder 173, and the lowermost end of the wires of the strobe light 151 extends into the waterproof function box 14 and is connected to the power supply component inside the waterproof function box 14. A rectangular groove 132 and an inclined groove 133 are provided inside the transparent partition 13. The rectangular groove 132, the inclined groove 133 and the partition groove 131 are connected, and the inclined groove 133 is inclined. The horizontal height of the strobe light 151 is lower than the horizontal height of the rectangular groove 132.

[0043] Embodiment 2

[0044] like Figure 7-Figure 8 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: two bubble curtain devices 1 are provided, a plurality of curved structures 2 are installed between the two bubble curtain devices 1, one side of the plurality of curved structures 2 is connected to one bubble curtain device 1, and the other side of the plurality of curved structures 2 is connected to another bubble curtain device 1, the curved structure 2 comprises a strip display screen 23 and a top plate 21 fixedly installed on the top of the strip display screen 23, a rubber strip 22 is installed on the side of the strip display screen 23, the interior of the strip display screen 23 is filled with liquid, and an opening is provided on the top of the top plate 21.

[0045] Specifically, a curved structure 2 is installed between the two bubble curtain devices 1. The bendable setting of the curved structure 2 can widen the effect of blocking fish at the water intake, allowing fish and other creatures to see a larger area visually and achieve a better interception effect. The two bubble curtain devices 1 and the curved structure 2 in a straight line can change shape through the bending of the curved structure 2, thereby better meeting the needs of water intakes with different terrains. The bending of the curved structure 2 is mainly achieved through the soft properties of the rubber strip 22. Rising bubbles and lights can also be set on the inner bottom of the top plate 21 to achieve a fish blocking effect.

[0046] like Fig. 9As shown, a bottom plate 231 is fixedly installed on the inner top of the strip display screen 23, a conical gas nozzle 232 is installed on the top of the bottom plate 231, and the conical gas nozzle 232 is located inside the strip display screen 23; an oxygen tube 233 is fixedly installed on the inner top of the strip display screen 23, and the oxygen tube 233 is located below the bottom plate 231; an opening is arranged above the oxygen tube 233, and the opening is connected to the conical gas nozzle 232; a rubber sleeve 221 is installed on the bottom of the rubber strip 22, a soft gas pipe 222 is installed inside the rubber sleeve 221, and the soft gas pipe 222 is connected to the oxygen tube 233; the soft gas pipe 222 and the oxygen tube 233 form a whole, one end of which is installed on the inner bottom of one bubble curtain device 1, and the other end is installed on the inner bottom of another bubble curtain device 1.

[0047] Specifically, the oxygen generating assembly inside the waterproof functional box 14 delivers oxygen to the soft air pipe 222 and the oxygen tube 2 233. An opening is provided above the oxygen tube 233. Oxygen rises to the inside of the conical air nozzle 2 232 through the oxygen tube 233. The effect of the conical air nozzle 232 is consistent with the effect of the conical air nozzle 1 152 and the porous conical cotton 153 added together. Water is also filled inside the bar display screen 23, that is, a group of rising bubbles can be created inside the bar display screen 23, which has an intercepting effect on fish and other organisms. The soft air pipe 222 is a hose that can be bent together with the rubber strip 22, that is, it does not affect the oxygen delivery inside the oxygen tube 233 and does not affect the overall bending of the bending structure 2.

[0048] Working principle: the bubble curtain device 1 is placed at the water intake position, the top plate 11 is higher than the water surface, and the waterproof function box 14 contacts the bottom of the water. At this time, the inside of the fish blocking display screen 12 is filled with water, and visual glass is installed on both sides of the fish blocking display screen 12. An oxygen generating component and a power supply component are installed inside the waterproof function box 14. The oxygen generating component works to fill the oxygen tube 17 with oxygen. The oxygen is released from the top of the oxygen tube 17 and then enters the inside of the fish blocking display screen 12. The oxygen forms bubbles inside the liquid of the fish blocking display screen 12 and rises. The setting of multiple transparent partitions 13 plans the internal space of the fish blocking display screen 12, that is, multiple holes are set on the oxygen tube 17 to allow oxygen to flow in. Air is released from these holes and then forms multiple groups of rising bubbles inside the fish blocking display screen 12. A group of rising bubbles will exist between two adjacent transparent partitions 13. At this time, due to the visual setting of the fish blocking display screen 12, fish and other creatures can visually observe the rising bubbles in the fish blocking display screen 12, thereby preventing fish from entering the water intake. At the same time, the strobe light 151 is energized to produce light that flashes at a frequency, and drives away fish by changing the light intensity or light color in a short period of time, so as to prevent fish from entering the water intake position. The superposition of the two methods can effectively ensure the effect of driving away and avoid the situation where fish and other creatures are driven when water is needed.

[0049] Oxygen rises to the inside of the conical air nozzle 152 through the air outlet 172. A porous conical cotton 153 is arranged inside the conical air nozzle 152. The porous design of the porous conical cotton 153 can release oxygen through multiple hole channels to generate more bubbles at one time. The conical design of the conical air nozzle 152 can prevent the water inside the fish blocking display screen 12 from rushing into the oxygen tube 17 due to pressure. When the strobe light 151 emits light, part of the light will act on the inside of the rectangular groove 132 and the inclined groove 133. The transparent partition 13 is made of transparent material. When the light shines on the inclined inner wall of the inclined groove 133, refraction and reflection will occur. , thereby expanding the lighting area, increasing visual visualization, and allowing fish to see more clearly. A curved structure 2 is installed between the two bubble curtain devices 1. The bendable setting of the curved structure 2 can widen the effect of blocking fish at the water intake, allowing fish and other creatures to see a larger area visually and achieve a better interception effect. The two straight bubble curtain devices 1 and the curved structure 2 can change shape through the bending of the curved structure 2, thereby better meeting the needs of water intakes with different terrains. The bending of the curved structure 2 is mainly achieved through the soft properties of the rubber strip 22. Rising bubbles and lights can also be set on the inner bottom of the top plate 21 to achieve a fish blocking effect.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fish-blocking bubble curtain generating device, comprising a bubble curtain device (1), characterized in that: The bubble curtain device (1) comprises a fish blocking display screen (12) and a top plate (11) fixedly mounted on the top of the fish blocking display screen (12); a waterproof function box (14) is fixedly mounted on the bottom of the fish blocking display screen (12); and a plurality of transparent partitions (13) are fixedly mounted inside the fish blocking display screen (12); The waterproof function box (14) is provided with a component groove (16) at the inner top, an oxygen tube (17) and a waterproof strip (15) are installed inside the component groove (16), a plurality of strobe lights (151) are fixedly installed on the upper side of the waterproof strip (15), an oxygen generating assembly and a power supply assembly for generating oxygen are provided inside the waterproof function box (14), a plurality of holes are provided on the oxygen tube (17), and the oxygen generated by the oxygen generating assembly is discharged through the holes to form bubbles.

2. A fish blocking bubble curtain generating device according to claim 1, characterized in that: The oxygen tube (17) is installed at the inner bottom of the component groove (16), and air inlet and outlet nozzles (171) are installed at both ends of the oxygen tube (17). The oxygen tube (17) is connected to the oxygen generating structure inside the waterproof function box (14) through the air inlet and outlet nozzles (171). The oxygen tube (17) is located directly below the waterproof strip (15).

3. A fish blocking bubble curtain generating device according to claim 1, characterized in that: A plurality of air outlet holes (172) are provided above the oxygen tube (17), and the plurality of air outlet holes (172) are connected to the interior of the oxygen tube (17). A plurality of air cylinders (173) are also fixedly installed inside the oxygen tube (17), and both ends of the plurality of air cylinders (173) extend to the outside of the oxygen tube (17), and the air cylinders (173) are not connected to the interior of the oxygen tube (17).

4. A fish blocking bubble curtain generating device according to claim 3, characterized in that: A plurality of conical air nozzles (152) are also installed above the waterproof strip (15), and a porous conical cotton (153) is fixedly installed inside the conical air nozzle (152), and the conical air nozzle (152) is connected to the corresponding air outlet hole (172).

5. A fish blocking bubble curtain generating device according to claim 4, characterized in that: The electric wire of the strobe light (151) is installed inside the air cylinder (173), and the lowermost end of the electric wire of the strobe light (151) extends into the waterproof function box (14) and is connected to the power supply component inside the waterproof function box (14).

6. A fish blocking bubble curtain generating device according to claim 1, characterized in that: The transparent partition (13) is a component made of transparent material. A partition groove (131) is provided at the bottom of the transparent partition (13). The fish blocking display screen (12) is filled with liquid. The plurality of transparent partitions (13) evenly divide the internal space of the fish blocking display screen (12).

7. A fish blocking bubble curtain generating device according to claim 6, characterized in that: A rectangular groove (132) and an inclined groove (133) are provided inside the transparent partition (13); the rectangular groove (132), the inclined groove (133) and the partition groove (131) are connected; the inclined groove (133) is arranged at an angle; and the horizontal height of the strobe light (151) is lower than the horizontal height of the rectangular groove (132).

8. The fish blocking bubble curtain generating device according to claim 1, characterized in that: Two bubble curtain devices (1) are provided, and a plurality of curved structures (2) are installed between the two bubble curtain devices (1); one side of the plurality of curved structures (2) is connected to one bubble curtain device (1), and the other side of the plurality of curved structures (2) is connected to another bubble curtain device (1).

9. A fish blocking bubble curtain generating device according to claim 8, characterized in that: The curved structure (2) comprises a strip display screen (23) and a top plate 2 (21) fixedly mounted on the top of the strip display screen (23); a rubber strip (22) is mounted on the side of the strip display screen (23); and the interior of the strip display screen (23) is filled with liquid.

10. The fish blocking bubble curtain generating device according to claim 9, characterized in that: A bottom plate (231) is fixedly mounted on the inner top of the strip display screen (23), a second conical air nozzle (232) is mounted on the top of the bottom plate (231), and the second conical air nozzle (232) is located inside the strip display screen (23), a second oxygen tube (233) is fixedly mounted on the inner top of the strip display screen (23), and the second oxygen tube (233) is located below the bottom plate (231), and an opening is arranged above the second oxygen tube (233), and the opening is in contact with the conical air nozzle. The second nozzle (232) is connected, a rubber sleeve (221) is installed at the bottom of the rubber strip (22), a soft air supply pipe (222) is installed inside the rubber sleeve (221), the soft air supply pipe (222) is connected to the second oxygen pipe (233), the soft air supply pipe (222) and the second oxygen pipe (233) form a whole, one end of the whole is installed at the bottom of one bubble curtain device (1), and the other end is installed at the bottom of another bubble curtain device (1).

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