Fish barrier bubble curtain generator

Abstract

The application belongs to the technical field of fish blocking bubble curtain device, 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 top plate one, a waterproof function box is fixedly installed at the bottom of the fish blocking display curtain, a plurality of transparent partitions 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 one and a waterproof strip are installed in the component groove, a plurality of stroboscopic lamps are fixedly installed on the upper side of the waterproof strip, a plurality of groups of ascending bubbles are formed in the fish blocking display curtain by oxygen, due to the visual setting of the fish blocking display curtain, fish and other organisms can visually observe the ascending bubbles in the fish blocking display curtain, and the purpose of blocking fish from entering the water intake is achieved, meanwhile, the stroboscopic lamps are electrified to generate effects, emit light flashes according to the frequency, and drive fish away through the change of light intensity or light color in a short time, so that the fish are prevented from entering the water intake position.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of fish blocking bubble curtain device, and particularly relates to a fish blocking bubble curtain generating device. BACKGROUND

[0002] There are a large number of fish and other animals in rivers, in order to carry out water taking work at a water taking port or other water taking place, it is necessary to intercept fish and other animals, so as to avoid fish and other animals from affecting the use of water at the water taking position, that is, the essence is to drive fish and other animals away at a fixed position, usually by using the way that fish and other animals can recognize visually, so as to avoid fish and other animals from gathering, such as the change of light intensity or light color in a short time and the upwelling bubbles.

[0003] In the conventional technology, when driving fish and other animals at the water taking port, the way of stirring water flow and irradiating water surface with strong light is usually used, the effect of driving by these ways is not good, and moreover, the driving is carried out after fish and other animals exist at the water taking port, at this time, the water quality at the water taking port position may be polluted by fish and other animals, and the polluted water quality needs to be treated, thereby increasing the steps of water taking work.

[0004] Therefore, the present application provides a fish blocking bubble curtain generating device. SUMMARY

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0006] The technical scheme adopted by the present application to solve the technical problems is that the fish blocking bubble curtain generating device comprises a bubble curtain device, the bubble curtain device comprises a fish blocking display curtain and a top plate one fixedly installed at the top of the fish blocking display curtain, a waterproof function box is fixedly installed at the bottom of the fish blocking display curtain, and a plurality of transparent partitions are fixedly installed in the fish blocking display curtain.

[0007] An component slot is formed in the inner top of the waterproof function box, an oxygen pipe one and a waterproof strip are installed in the component slot, a plurality of stroboscopic lamps are fixedly installed on the upper side of the waterproof strip, and the waterproof function box comprises an oxygen generation function and a power supply function.

[0008] Preferably, the oxygen pipe one is installed at the inner bottom of the component slot, and air inlet and outlet nozzles are installed at both ends of the oxygen pipe one, the oxygen pipe one is connected with the oxygen generation structure in the waterproof function box through the air inlet and outlet nozzles, and the oxygen pipe one is located directly below the waterproof strip.

[0009] Preferably, a plurality of gas outlets are arranged above the oxygen pipe one, the plurality of gas outlets are communicated with the inside of the oxygen pipe one, and a plurality of air cylinders are fixedly installed in the inside of the oxygen pipe one, the two ends of the plurality of air cylinders extend to the outside of the oxygen pipe one, and the air cylinders are not communicated with the inside of the oxygen pipe one.

[0010] Preferably, a plurality of conical air outlets one are further installed above the waterproof strip, a plurality of porous conical cots are fixedly installed in the inside of the conical air outlets one, and the conical air outlets one are communicated with the corresponding gas outlets.

[0011] Preferably, the wire of the stroboscopic lamp is installed in the air cylinder, the lowermost end of the wire of the stroboscopic lamp extends to the inside of the waterproof function box, and is connected with the power supply assembly in the inside of the waterproof function box.

[0012] Preferably, the transparent partition plate is a component made of transparent material, a partition plate groove is arranged at the bottom of the transparent partition plate, the inside of the fish blocking display screen is filled with liquid, and the plurality of transparent partition plates divide the inside space of the fish blocking display screen.

[0013] Preferably, a rectangular groove and an inclined groove are arranged in the inside of the transparent partition plate, the rectangular groove, the inclined groove and the partition plate groove are communicated, the inclined groove is arranged in an inclined manner, and the horizontal height of the stroboscopic lamp is lower than the horizontal height of the rectangular groove.

[0014] Preferably, two bubble screen devices are arranged, a plurality of curved structures are installed between the two bubble screen devices, one side of the plurality of curved structures is connected with one bubble screen device, and the other side of the plurality of curved structures is connected with the other bubble screen device.

[0015] Preferably, the curved structure comprises a strip-shaped display screen and a top plate two fixedly installed at the top of the strip-shaped display screen, a rubber strip is installed at the side edge of the strip-shaped display screen, and the inside of the strip-shaped display screen is filled with liquid.

[0016] Preferably, a bottom plate is fixedly installed at the inner top of the strip-shaped display screen, a conical air outlet two is installed at the top of the bottom plate, the position of the conical air outlet two is in the inside of the strip-shaped display screen, an oxygen pipe two is fixedly installed at the inner top of the strip-shaped display screen, the position of the oxygen pipe two is below the bottom plate, an opening is arranged above the oxygen pipe two, the opening is communicated with the conical air outlet two, a rubber sleeve is installed at the bottom of the rubber strip, a soft gas conveying pipe is installed in the inside of the rubber sleeve, the soft gas conveying pipe is connected with the oxygen pipe two, the soft gas conveying pipe and the oxygen pipe two form an integral whole, one end of the integral whole is installed at the bottom of one bubble screen device, and the other end of the integral whole is installed at the bottom of the other bubble screen device.

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

[0018] 1. The fish blocking bubble curtain generating device, a plurality of holes are arranged on the oxygen pipe one, oxygen is released from the holes to form a plurality of groups of rising bubbles in the fish blocking display curtain, a group of rising bubbles exists between two adjacent transparent partitions, at this time, the fish blocking display curtain is visually arranged, fish and other organisms observe the rising bubbles in the fish blocking display curtain by vision, and the purpose of blocking fish from entering the water intake is achieved, and at the same time, the stroboscopic lamp is powered to emit light flashes according to the frequency, and the fish is driven away by the change of light intensity or light color in a short time to avoid entering the water intake position.

[0019] 2. The fish blocking bubble curtain generating device, oxygen rises to the inside of the conical nozzle one through the gas outlet hole, the conical nozzle one is provided with a porous conical cotton, the porous design of the porous conical cotton can release oxygen through a plurality of hole channels to generate more bubbles at a time, the conical design of the conical nozzle one can avoid the water in the fish blocking display curtain from rushing into the inside of the oxygen pipe one due to pressure, when the stroboscopic lamp 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 illumination area, increasing the visual visualization, and enabling fish to see more clearly.

[0020] 3. The fish blocking bubble curtain generating device, a bending structure is installed between the two bubble curtain devices, the bending structure is bendable, which can widen the effect of blocking fish at the water intake, and the visual field of fish and other organisms is larger, and the blocking effect is better, the two bubble curtain devices in a linear type and the bending structure can change shape through the bending of the bending structure, thereby better meeting different topography of the water intake, and the bending of the bending structure is mainly realized by the softness of the rubber strip, and the rising bubbles and the light on the inner bottom of the top plate two can also be arranged to block fish. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described below with reference to the drawings.

[0022] Figure 1 is a perspective view of the bubble curtain device of the application;

[0023] Figure 2 is a perspective view of the fish blocking display curtain in the application;

[0024] Figure 3 is a perspective view of the waterproof strip and the component groove in the application;

[0025] Figure 4 is a perspective view of the oxygen pipe one in the application;

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

[0027] Figure 6 This is a schematic diagram of the disassembly of the transparent partition in this invention;

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

[0029] Figure 8 This is a three-dimensional schematic diagram of the curved structure in this invention;

[0030] Figure 9 This is a three-dimensional schematic diagram of the rubber strip and the strip-shaped display screen in this invention.

[0031] In the diagram: 1. Bubble curtain device; 11. Top plate one; 12. Fish-blocking display screen; 13. Transparent partition; 131. Partition groove; 132. Rectangular groove; 133. Inclined groove; 14. Waterproof functional box; 15. Waterproof strip; 151. Strobe light; 152. Conical air nozzle one; 153. Perforated conical cotton; 16. Component groove; 17. Oxygen pipe one; 171. Air inlet and outlet nozzles; 172. Air outlet; 173. Air cylinder; 2. Curved structure; 21. Top plate two; 22. Rubber strip; 221. Rubber sleeve; 222. Flexible air supply pipe; 23. Strip display screen; 231. Base plate; 232. Conical air nozzle two; 233. Oxygen pipe two. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Example 1

[0034] like Figures 1-5 As shown, an embodiment of the present invention provides a fish-blocking bubble curtain generating device, including a bubble curtain device 1. The bubble curtain device 1 includes a fish-blocking display screen 12 and a top plate 11 fixedly installed on the top of the fish-blocking display screen 12. A waterproof functional box 14 is fixedly installed at the bottom of the fish-blocking display screen 12. Multiple transparent partitions 13 are fixedly installed inside the fish-blocking display screen 12.

[0035] The top of the waterproof functional box 14 has a component groove 16. An oxygen tube 17 and a waterproof strip 15 are installed inside the component groove 16. Multiple strobe lights 151 are fixedly installed on the upper side of the waterproof strip 15. The waterproof functional box 14 includes the functions of oxygen generation and power supply. An opening is provided on the top of the top plate 11. The waterproof functional box 14 is equipped with an oxygen generation component and a power supply component for generating oxygen. Multiple holes are provided on the oxygen tube 17. The oxygen generated by the oxygen generation component is discharged through the holes and forms bubbles.

[0036] Specifically, the bubble curtain device 1 is placed at the water taking position, the top plate 11 is higher than the water surface, the waterproof function box 14 contacts the water bottom, at this time the inside of the fish blocking display curtain 12 is filled with water, and the fish blocking display curtain 12 is provided with visual glass on both sides, the oxygen generation assembly and the power supply assembly are installed in the waterproof function box 14, the oxygen generation assembly works to fill oxygen into the inside of the oxygen pipe 17, the oxygen is released from above the oxygen pipe 17 and then enters the inside of the fish blocking display curtain 12, and the oxygen forms water bubbles in the liquid inside the fish blocking display curtain 12 and rises, the multiple transparent partitions 13 plan the inside space of the fish blocking display curtain 12, that is, multiple holes are provided on the oxygen pipe 17 to allow oxygen to be released from the holes and form multiple groups of rising bubbles in the inside of the fish blocking display curtain 12, and a group of rising bubbles exists between two adjacent transparent partitions 13, at this time, due to the visual setting of the fish blocking display curtain 12, fish and other organisms visually observe the rising bubbles in the fish blocking display curtain 12, thereby achieving the purpose of blocking fish from entering the water taking port, at the same time, the stroboscopic lamp 151 is powered on to generate light flashes, and the light flashes drive fish away by changing the light intensity or color in a short time, thereby avoiding the situation that fish and other organisms need to be driven again when water is taken. The superposition of the two modes can effectively ensure the driving effect and avoid the situation that fish and other organisms need to be driven again when water is taken.

[0037] As shown in Figures 4-5 The oxygen pipe 17 is installed at the inner bottom of the component groove 16, and the two ends of the oxygen pipe 17 are provided with air inlet and outlet nozzles 171, the oxygen pipe 17 is connected to the oxygen generation structure in the waterproof function box 14 through the air inlet and outlet nozzles 171, and the position of the oxygen pipe 17 is directly below the waterproof strip 15.

[0038] A plurality of gas outlet holes 172 are provided above the oxygen pipe 17, the plurality of gas outlet holes 172 are in communication with the inside of the oxygen pipe 17, and a plurality of air cylinders 173 are fixedly installed in the inside of the oxygen pipe 17, the two ends of the air cylinders 173 extend to the outside of the oxygen pipe 17, and the air cylinders 173 are not in communication with the inside of the oxygen pipe 17.

[0039] A plurality of conical air nozzles 152 are further installed above the waterproof strip 15, a plurality of porous conical cottons 153 are fixedly installed in the conical air nozzles 152, and the conical air nozzles 152 are in communication with the corresponding gas 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 inside of the fish blocking display curtain 12 is filled with liquid, and the multiple transparent partitions 13 divide the inside space of the fish blocking display curtain 12.

[0041] Specifically, oxygen rises to the inside of the conical air nozzle one 152 through the air outlet hole 172, the inside of the conical air nozzle one 152 is provided with a porous conical cotton 153, 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 one 152 can avoid the water in the fish display screen 12 from rushing into the inside of the oxygen pipe one 17 due to pressure, when the stroboscopic lamp 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 plate 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 illumination area, increasing the visual visualization, and enabling fish to see more clearly.

[0042] As shown in Figures 5-6 , the wires of the stroboscopic lamp 151 are installed in the air cylinder 173, the lowermost end of the wires of the stroboscopic lamp 151 extends to the inside of the waterproof function box 14 and is connected with the power supply assembly in the inside of the waterproof function box 14, the inside of the transparent partition plate 13 is provided with a rectangular groove 132 and an inclined groove 133, the rectangular groove 132, the inclined groove 133 and the partition plate groove 131 are communicated, the inclined groove 133 is inclined, and the horizontal height of the stroboscopic lamp 151 is lower than that of the rectangular groove 132.

[0043] Example two

[0044] As shown in Figures 7-8 , compared with example one, another embodiment of the present application is that two bubble screen devices 1 are provided, a plurality of curved structures 2 are installed between the two bubble screen devices 1, one side of the plurality of curved structures 2 is connected with one bubble screen device 1, the other side of the plurality of curved structures 2 is connected with the other bubble screen device 1, the curved structure 2 includes a strip-shaped display screen 23 and a top plate two 21 fixedly installed at the top of the strip-shaped display screen 23, rubber strips 22 are installed at the sides of the strip-shaped display screen 23, the inside of the strip-shaped display screen 23 is filled with liquid, and the top of the top plate two 21 is provided with an opening.

[0045] Specifically, the curved structure 2 is installed between the two bubble screen devices 1, the bendable structure of the curved structure 2 can widen the effect of fish interception at the water intake, enable fish and other organisms to see a larger area, and achieve better interception effect, the two bubble screen devices 1 and the curved structure 2 in the form of a straight line can change shape through the bending of the curved structure 2, thereby better meeting the water intakes of different terrains, and the bending of the curved structure 2 is mainly realized through the softness of the rubber strips 22, and rising water bubbles and light can also be provided at the inner bottom of the top plate two 21 to achieve the effect of fish interception.

[0046] As shown in Figure 9As shown, the inner top of the strip-shaped display screen 23 is fixedly provided with a bottom plate 231, the top of the bottom plate 231 is fixedly provided with a conical air nozzle two 232, the conical air nozzle two 232 is located inside the strip-shaped display screen 23, the inner top of the strip-shaped display screen 23 is fixedly provided with an oxygen pipe two 233, the oxygen pipe two 233 is located below the bottom plate 231, a hole is arranged above the oxygen pipe two 233, the hole is communicated with the conical air nozzle two 232, the bottom of the rubber strip 22 is provided with a rubber sleeve 221, the rubber sleeve 221 is internally provided with a soft gas conveying pipe 222, the soft gas conveying pipe 222 is connected with the oxygen pipe two 233, and the soft gas conveying pipe 222 and the oxygen pipe two 233 form an integral whole, one end of the integral whole is fixedly arranged in the inner bottom of one bubble screen device 1, and the other end is fixedly arranged in the inner bottom of another bubble screen device 1.

[0047] Specifically, the oxygen generation assembly in the waterproof function box 14 delivers oxygen to the soft gas conveying pipe 222 and the oxygen pipe two 233, a hole is arranged above the oxygen pipe two 233, oxygen rises to the inside of the conical air nozzle two 232 through the oxygen pipe two 233, the conical air nozzle two 232 has the same effect as the conical air nozzle one 152 and the porous conical cotton 153, and water is also filled in the strip-shaped display screen 23, that is, a group of rising water bubbles can be generated in the strip-shaped display screen 23, which can play a role in intercepting fish and other organisms, the soft gas conveying pipe 222 is a flexible pipe which can be bent together with the rubber strip 22, that is, it does not affect the oxygen delivery in the oxygen pipe two 233 and does not affect the overall bending of the bending structure 2.

[0048] Working principle: place the bubble screen device 1 at the water taking position, the top plate one 11 is higher than the water surface, the waterproof function box 14 contacts the water bottom, at this time, the inside of the fish blocking display screen 12 is filled with water, and the visual glass is arranged on both sides of the fish blocking display screen 12, the oxygen generation assembly and the power supply assembly are arranged in the waterproof function box 14, the oxygen generation assembly works to fill oxygen into the inside of the oxygen pipe one 17, the oxygen is released from above the oxygen pipe one 17 and then enters the inside of the fish blocking display screen 12, the oxygen forms water bubbles in the liquid inside the fish blocking display screen 12 and rises, the arrangement of the plurality of transparent partitions 13 plans the space inside the fish blocking display screen 12, that is, a plurality of holes are arranged on the oxygen pipe one 17, the oxygen is released from the holes to form a plurality of groups of rising bubbles in the inside of the fish blocking display screen 12, a group of rising water bubbles exists between two adjacent transparent partitions 13, at this time, due to the visual arrangement of the fish blocking display screen 12, fish and other organisms observe the rising bubbles in the fish blocking display screen 12 through vision, thereby playing a role in intercepting fish from entering the water taking port, at the same time, the stroboscopic lamp 151 is electrified to generate an effect, emits light which flashes according to a frequency, drives fish through the change of light intensity or light color in a short time, avoids fish from entering the water taking position, the superposition of the two modes can effectively ensure the driving effect, and avoids the situation that fish and other organisms need to be driven again when water is taken.

[0049] The oxygen rises to the inside of the conical air nozzle 152 through the air outlet hole 172, and the inside of the conical air nozzle 152 is provided with a porous conical cotton 153. 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 avoid the water in the fish blocking screen 12 from rushing into the inside of the oxygen pipe 17 due to pressure. When the stroboscopic lamp 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 plate 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 illumination area, increasing visual visualization, and allowing fish to see more clearly. The curved structure 2 is installed between the two bubble screen devices 1. The bendable design of the curved structure 2 can widen the effect of fish blocking at the water intake, allowing fish and other organisms to see a larger area and better blocking effect. The two bubble screen 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 water intakes of different terrains. The bending of the curved structure 2 is mainly realized through the softness of the rubber strip 22. The inside bottom of the top plate 21 can also be provided with rising water bubbles and light to achieve the effect of fish blocking.

[0050] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended 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) includes a fish-blocking display screen (12) and a top plate (11) fixedly installed on the top of the fish-blocking display screen (12). A waterproof functional box (14) is fixedly installed at the bottom of the fish-blocking display screen (12). Multiple transparent partitions (13) are fixedly installed inside the fish-blocking display screen (12). The waterproof functional box (14) has a component groove (16) on its inner top. An oxygen tube (17) and a waterproof strip (15) are installed inside the component groove (16). Multiple strobe lights (151) are fixedly installed on the upper side of the waterproof strip (15). The waterproof functional box (14) is equipped with an oxygen generating component and a power supply component for generating oxygen. Multiple holes are provided on the oxygen tube (17). The oxygen generated by the oxygen generating component is discharged through the holes and forms bubbles. The transparent partition (13) is a component made of transparent material. The bottom of the transparent partition (13) is provided with a partition groove (131). The fish-blocking display screen (12) is filled with liquid. Multiple transparent partitions (13) divide the internal space of the fish-blocking display screen (12) equally. The transparent partition (13) has a rectangular groove (132) and an inclined groove (133) inside. The rectangular groove (132), the inclined groove (133) and the partition groove (131) are connected. The inclined groove (133) is inclined and the horizontal height of the strobe lamp (151) is lower than the horizontal height of the rectangular groove (132).

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

3. The fish-blocking bubble curtain generating device according to claim 1, characterized in that: The oxygen tube (17) has multiple air outlets (172) on its upper part. The multiple air outlets (172) are connected to the interior of the oxygen tube (17). The interior of the oxygen tube (17) is also fixedly installed with multiple air cylinders (173). The two ends of the multiple air cylinders (173) extend to the outside of the oxygen tube (17). The air cylinders (173) are not connected to the interior of the oxygen tube (17).

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

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

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

7. The fish-blocking bubble curtain generating device according to claim 6, characterized in that: The curved structure (2) includes a strip display screen (23) and a top plate (21) fixedly installed inside the top of the strip display screen (23). A rubber strip (22) is installed on the side of the strip display screen (23), and the inside of the strip display screen (23) is filled with liquid.

8. The fish-blocking bubble curtain generating device according to claim 7, characterized in that: A base plate (231) is fixedly installed on the inner top of the strip-shaped display screen (23). A conical air nozzle (232) is installed on the top of the base plate (231). The conical air nozzle (232) is located inside the strip-shaped display screen (23). An oxygen tube (233) is fixedly installed on the inner top of the strip-shaped display screen (23). The oxygen tube (233) is located below the base plate (231). An opening is provided above the oxygen tube (233). The opening is connected to the conical air nozzle. The two nozzles (232) are connected. A rubber sleeve (221) is installed at the bottom of the rubber strip (22). A flexible gas delivery tube (222) is installed inside the rubber sleeve (221). The flexible gas delivery tube (222) is connected to the oxygen tube (233). The flexible gas delivery tube (222) and the oxygen tube (233) form a whole. One end of this whole is installed at the bottom of a bubble curtain device (1), and the other end is installed at the bottom of another bubble curtain device (1).

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