Oxygen supply system for crab breeding

Abstract

The invention relates to the technical field of crab breeding oxygen supply, in particular to a crab breeding oxygen supply system which comprises a mounting seat, an oxygen tank, a base, a supporting frame and a footstand, the mounting seat is arranged on one side of the base, and the oxygen supply system further comprises an exhaust seat, an exhaust connecting assembly and a driving gas transmission assembly. The multiple exhaust seats are movably arranged on the periphery of the mounting seat, multiple exhaust holes are annularly distributed in the exhaust seats, the exhaust connecting assembly is arranged on the mounting seat and enables the exhaust seats to be communicated with the oxygen tank, and the driving gas conveying assembly is arranged on the mounting seat and connected with the oxygen tank and the exhaust connecting assembly. The whole device is high in automation degree, on one hand, the oxygen supply range of the crabs is adjusted, the phenomenon that the crabs are gathered and trampled is avoided, on the other hand, the exercise amount of the crabs can be increased, the crabs move along with movement of the exhaust base, and the crab meat texture of the crabs in the later period is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen supply for crab farming, and more specifically to an oxygen supply system for crab farming. Background Art

[0002] The crab's body is protected by a hard shell and it breathes through its gills. It is rich in protein and has become a delicacy on the table in recent years due to its delicious meat and various cooking methods. In order to stimulate economic benefits and ensure the supply of crabs, crabs need to be farmed.

[0003] Crab farming is usually carried out in aquaculture ponds, and multiple oxygen supply equipment is installed in the aquaculture ponds to facilitate the aerobic respiration of crabs. The existing crab farming oxygen supply system has a simple structure. Since the oxygen output position of the aquaculture system is fixed and cannot adapt to aquaculture ponds of different depths, it is easy for crabs to gather to absorb oxygen. The gathering of crabs is not only easy to cause trampling, increasing the mortality rate of crab farming, but also causes the crabs to have low activity, affecting the texture of the crab meat of the subsequent crabs. Summary of the invention

[0004] The object of the present invention is to provide an oxygen supply system for crab farming to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A crab breeding oxygen supply system comprises a mounting seat, an oxygen tank, a base, a support frame and a foot seat, wherein the mounting seat is arranged at one side of the base, the mounting seat is connected to the base through the support frame, the oxygen tanks are in a plurality and are arranged in a ring on the mounting seat, a group of support plates are symmetrically arranged on the mounting seat, a mounting plate is connected between a group of support plates, an installation window for installing the oxygen tank is formed on the mounting plate, the foot seats are in a plurality and are arranged in a ring on the base, the foot seat is arranged at a side of the base away from the mounting seat, the oxygen supply system further comprises an exhaust seat, an exhaust connection assembly and a driving gas transmission assembly, the exhaust seats are in a plurality and are movably arranged around the mounting seat, a plurality of exhaust holes are arranged in a ring on the exhaust seat, the exhaust connection assembly is arranged on the mounting seat and connects the exhaust seat with the oxygen tank, the driving gas transmission assembly is arranged on the mounting seat and is connected to the oxygen tank and the exhaust connection assembly, when the driving gas transmission assembly is working, the oxygen in the oxygen tank is controlled to enter the oxygen tank along the exhaust connection assembly, and when the driving gas transmission assembly is working, the position of the exhaust seat is adjusted.

[0006] A further technical solution of the present application is as follows: a plurality of support columns are arranged on the base, the number of the support columns is the same as the number of the foot seats, the foot seats are movably arranged on one side of the support columns, a second threaded rod is arranged on the foot seats, one end of the second threaded rod is slidably inserted in the support column and the two are threadedly matched.

[0007] A further technical solution of the present application is as follows: the exhaust connection assembly comprises an exhaust pipe fitting, a telescopic tube and a rotating power part; the exhaust pipe fitting is movably arranged around the base; one end of the exhaust pipe fitting is connected to the exhaust seat, and the other end is connected to the oxygen tank through the telescopic tube; the rotating power part is arranged between the base and the exhaust pipe fitting; when the exhaust pipe fitting and the exhaust seat move relative to the base, the exhaust seat is controlled to rotate by the rotating power part.

[0008] A further technical solution of the present application: the exhaust pipe fitting includes a first supply pipe, a second supply pipe, a slider and a first threaded rod, the slider is movably arranged around the oxygen tank, the slider is connected to the telescopic tube, one end of the first supply pipe is connected to the slider, the second supply pipe is movably arranged on a side of the first supply pipe close to the exhaust seat, the second supply pipe is connected to the exhaust seat, the first threaded rod is movably inserted into the first supply pipe and the two are threadedly matched, and one end of the first threaded rod is connected to the second supply pipe.

[0009] The present application has a further technical solution: the rotating power member includes a gear and a rack, the gear is sleeved on the outer wall of the first supply pipe, and the rack is arranged on the base and meshes with the gear.

[0010] The present application has a further technical solution: the driving gas delivery assembly includes a positioning module and a gas delivery module, the positioning module is arranged on the mounting seat and connected to the first supply pipe, and is used to adjust the distance between the first supply pipe and the base, the gas delivery module is arranged on the mounting seat and connected to the positioning module, the gas delivery module connects the oxygen tank and the telescopic tube, and when the positioning module is working, it controls the gas delivery module to work synchronously and inputs the air in the oxygen tank into the telescopic tube.

[0011] The present application has a further technical solution: the positioning module includes a power element, an intermediate column, a sliding sleeve, an inner sleeve body, a driving shaft and a transmission member, the intermediate column is arranged on a mounting seat, the sliding sleeve is movably sleeved on the outer wall of the intermediate column, the inner sleeve body is movably arranged in the intermediate column and slides through the intermediate column, the inner sleeve body and the sliding sleeve are connected, the driving shaft is movably arranged on a mounting plate, a thread groove is formed on the driving shaft, the driving shaft is threadedly matched with the inner sleeve body through the thread groove, the power element is arranged on the mounting plate and its output end is connected to the driving shaft, the sliding sleeve is connected to the first supply pipe through the transmission member, and when the sliding sleeve moves along the intermediate column, the exhaust seat can be controlled to move relative to the base through the transmission member.

[0012] A further technical solution of the present application is as follows: the transmission part includes a push arm, a connecting sleeve, a moving block and a mounting sleeve; the mounting seat is ring-formed with a plurality of slide grooves, a moving block is movably arranged in each slide groove, the moving block is elastically connected to the mounting seat, a connecting sleeve is movably arranged on the moving block, the connecting sleeve is movably connected to the push arm and the sliding sleeve, one end of the mounting sleeve is connected to the moving block, the other end of the mounting sleeve is sleeved on the first supply pipe, and limiting rings are arranged on both sides of the mounting sleeve on the first supply pipe.

[0013] A further technical solution of the present application is as follows: the gas delivery module includes a gas delivery box, an extrusion slide and a connecting rod, the gas delivery box is arranged on a mounting plate, the extrusion slide is movably arranged in the gas delivery box, the extrusion slide is connected to the sliding sleeve through a connecting rod, and the drive shaft slides through the extrusion slide and the gas delivery box.

[0014] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects: The embodiment of the present invention provides an exhaust connection component and a driving gas supply component. Through the exhaust connection component, the position of the exhaust seat can be adaptively adjusted according to the depth of the crab breeding pond. The linkage performance of the driving gas supply component is utilized. While adjusting the positions of the exhaust seat and the exhaust connection component, the oxygen in the oxygen tank can be input into the exhaust seat. The whole device has a high degree of automation. On the one hand, it can adjust the range of oxygen supply to crabs to avoid the phenomenon of crab groups gathering and trampling. On the other hand, it can also increase the amount of exercise of crabs. The crabs move along with the movement of the exhaust seat, thereby increasing the texture of the crab meat in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the oxygen supply system for crab farming in an embodiment of the present invention; Figure 2This is a schematic diagram of the structure of an exhaust connection assembly in a crab farming oxygen supply system in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an exhaust pipe member in the crab farming oxygen supply system in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a driving gas transmission component of a crab farming oxygen supply system according to an embodiment of the present invention; Figure 5 This is a structural schematic diagram of a position adjustment module in a crab farming oxygen supply system in an embodiment of the present invention; Figure 6 It is a partial exploded view of the position adjustment module in the crab farming oxygen supply system in the embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the gas transmission module in the oxygen supply system for crab farming in an embodiment of the present invention; Figure 8 Schematic diagram of the internal structure of the gas transmission module in the crab farming oxygen supply system in an embodiment of the present invention.

[0016] Explanation of the symbols in the schematic diagram: 1-mounting seat, 2-oxygen tank, 3-base, 4-slider, 5-first supply pipe, 6-second supply pipe, 7-exhaust seat, 8-telescopic tube, 9-gear, 10-rack, 11-support frame, 12-support column, 13-foot, 14-stepping motor, 15-mounting sleeve, 16-drive shaft, 17-intermediate column, 18-sliding sleeve, 19-push arm, 20-slide groove, 21-moving block, 22-thread groove, 23-connecting sleeve, 24-gas box, 25-mounting plate, 26-extrusion slide plate, 27-inner sleeve, 28-connecting rod, 29-support plate, 31-first threaded rod, 32-second threaded rod, 33-limiting ring, 34-installation window. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0018] See also Figure 1-Figure 8In one embodiment of the present application, a crab farming oxygen supply system includes a mounting seat 1, an oxygen tank 2, a base 3, a support frame 11 and a foot seat 13, wherein the mounting seat 1 is arranged on one side of the base 3, the mounting seat 1 is connected to the base 3 through the support frame 11, the oxygen tanks 2 are in a plurality and are arranged in a ring on the mounting seat 1, a group of support plates 29 are symmetrically arranged on the mounting seat 1, a group of support plates 29 are connected with a mounting plate 25, and an installation window 34 for installing the oxygen tank 2 is formed on the mounting plate 25, the foot seats 13 are in a plurality and are arranged in a ring on the base 3, and the foot seats 13 are arranged On the side of the base 3 away from the mounting seat 1, the oxygen supply system also includes an exhaust seat 7, an exhaust connection assembly and a driven gas delivery assembly. The exhaust seats 7 are in number and movably arranged around the mounting seat 1. The exhaust seats 7 are provided with a plurality of exhaust holes. The exhaust connection assembly is arranged on the mounting seat 1 and connects the exhaust seat 7 with the oxygen tank 2. The driven gas delivery assembly is arranged on the mounting seat 1 and is connected to the oxygen tank 2 and the exhaust connection assembly. When the driven gas delivery assembly is working, it controls the oxygen in the oxygen tank 2 to enter the oxygen tank 2 along the exhaust connection assembly. When the driven gas delivery assembly is working, it adjusts the position of the exhaust seat 7.

[0019] In the exemplary embodiment, a plurality of support columns 12 are arranged on the base 3, the number of the support columns 12 is the same as the number of the foot seats 13, the foot seats 13 are movably arranged on one side of the support columns 12, a second threaded rod 31 is arranged on the foot seats 13, one end of the second threaded rod 31 is slidably inserted into the support column 12 and the two are threadedly matched.

[0020] In actual application, the entire device is installed at the set oxygen supply position of the crab breeding pond using the foot seat 13. At the same time, according to the depth of the crab breeding pond, the foot seat 13 can be manually rotated to drive the second threaded rod 31 to rotate. Under the threaded cooperation between the second threaded rod 31 and the support column 12, the distance between the support column 12 and the foot seat 13 is adjusted, thereby realizing adaptive adjustment of the height of the entire device. When supplying oxygen to crabs, the air supply assembly is driven to work by controlling the air supply assembly. When the air supply assembly is driven to work, on the one hand, the air in the oxygen tank 2 can be intermittently input into the exhaust seat 7 along the exhaust connection assembly, so that oxygen is discharged from the exhaust seat 7 into the water in the breeding pond to supply the aerobic respiration of the crabs. On the other hand, when the air supply assembly is driven to work, the position of the exhaust connection assembly and the exhaust seat 7 can be adjusted to adjust the range of oxygen supply to the crabs to avoid the phenomenon of crab grouping and trampling. On the other hand, the amount of exercise of the crabs can be increased. The crabs move along with the movement of the exhaust seat 7, thereby increasing the crab meat texture of the crabs in the later stage.

[0021] See also Figure 1-Figure 8As another preferred embodiment of the present application, the exhaust connection assembly includes an exhaust pipe fitting, a telescopic tube 8 and a rotating power member. The exhaust pipe fitting is movably arranged around the base 3, one end of the exhaust pipe fitting is connected to the exhaust seat 7, and the other end is connected to the oxygen tank 2 through the telescopic tube 8. The rotating power member is arranged between the base 3 and the exhaust pipe fitting. When the exhaust pipe fitting and the exhaust seat 7 move relative to the base 3, the exhaust seat 7 is controlled to rotate by the rotating power member.

[0022] In a specific case of the present embodiment, the exhaust pipe fitting includes a first supply pipe 5, a second supply pipe 6, a slider 4 and a first threaded rod 30, the slider 4 is movably arranged around the oxygen tank 2, the slider 4 is connected to the telescopic tube 8, one end of the first supply pipe 5 is connected to the slider 4, the second supply pipe 6 is movably arranged on a side of the first supply pipe 5 close to the exhaust seat 7, the second supply pipe 6 is connected to the exhaust seat 7, the first threaded rod 30 is movably inserted into the first supply pipe 5 and the two are threadedly matched, and one end of the first threaded rod 30 is connected to the second supply pipe 6.

[0023] In another specific case of this embodiment, the rotating power part includes a gear 9 and a rack 10 , the gear 9 is sleeved on the outer wall of the first supply pipe 5 , and the rack 10 is arranged on the base 3 and meshes with the gear 9 .

[0024] In actual application, according to the depth of the crab breeding pond, the staff can rotate the exhaust seat 7, thereby driving the second supply pipe 6 to rotate. Under the action of the threaded cooperation between the first threaded rod 30 and the first supply pipe 5, the second supply pipe 6 can be driven to rotate relative to the first supply pipe 5, thereby realizing the adjustment of the height of the exhaust seat 7, which is convenient for accurate oxygen supply to crab breeding ponds of different water depths. Then, by driving the gas transmission component to work, the first supply pipe 5, the second supply pipe 6 and the exhaust seat 7 can be driven to make linear movements away from or close to the mounting seat 1. In this process, the gear 9 can be driven to move synchronously. Under the meshing action between the gear 9 and the rack 10, the exhaust seat 7 can be driven to rotate during the linear movement, thereby adjusting the position of the exhaust hole, so that the oxygen discharged from the exhaust hole can be evenly input into various positions in the water of the breeding pond, which is convenient for crabs at different positions to perform aerobic respiration and reduce the probability of dead crabs.

[0025] See also Figure 1-Figure 8As another preferred embodiment of the present application, the driving gas delivery assembly includes a positioning module and a gas delivery module. The positioning module is arranged on the mounting seat 1 and connected to the first supply pipe 5, and is used to adjust the distance between the first supply pipe 5 and the base 3. The gas delivery module is arranged on the mounting seat 1 and connected to the positioning module. The gas delivery module connects the oxygen tank 2 and the telescopic tube 8. When the positioning module is working, it controls the gas delivery module to work synchronously and inputs the air in the oxygen tank 2 into the telescopic tube 8.

[0026] In a specific case of the present embodiment, the positioning module includes a power element, an intermediate column 17, a sliding sleeve 18, an inner sleeve body 27, a drive shaft 16 and a transmission member, the intermediate column 17 is arranged on the mounting seat 1, the sliding sleeve 18 is movably sleeved on the outer wall of the intermediate column 17, the inner sleeve body 27 is movably arranged in the intermediate column 17 and slides through the intermediate column 17, the inner sleeve body 27 is connected to the sliding sleeve 18, the drive shaft 16 is movably arranged on the mounting plate 25, a thread groove 22 is formed on the drive shaft 16, the drive shaft 16 is threadedly matched with the inner sleeve body 27 through the thread groove 22, the power element is arranged on the mounting plate 25 and its output end is connected to the drive shaft 16, the sliding sleeve 18 is connected to the first supply pipe 5 through the transmission member, and when the sliding sleeve 18 moves along the intermediate column 17, the exhaust seat 7 can be controlled to move relative to the base 3 through the transmission member.

[0027] It should be noted that the power element in this embodiment can be a stepper motor 14 or a servo motor. In this embodiment, the power element is preferably a stepper motor 14, and the stepper motor 14 is arranged on the mounting plate 25 and its output end is connected to the drive shaft 16. As for the specific model parameters of the stepper motor 14, the best choice can be made according to the actual situation, and no specific limitation is made here.

[0028] In another specific case of the present embodiment, the transmission member includes a push arm 19, a connecting sleeve 23, a moving block 21 and a mounting sleeve 15. A plurality of slide grooves 20 are formed in a ring shape on the mounting seat 1. A moving block 21 is movably arranged in each of the slide grooves 20. The moving block 21 is elastically connected to the mounting seat 1. A connecting sleeve 23 is movably arranged on the moving block 21. The connecting sleeve 23 is movably connected to the push arm 19 and the sliding sleeve 18. One end of the mounting sleeve 15 is connected to the moving block 21. The other end of the mounting sleeve 15 is sleeved on the first supply pipe 5. Limiting rings 33 are arranged on both sides of the mounting sleeve 15 on the first supply pipe 5.

[0029] It should be noted that the gas delivery module includes a gas delivery box 24, an extrusion slide 26 and a connecting rod 28. The gas delivery box 24 is set on a mounting plate 25, and the extrusion slide 26 is movably set in the gas delivery box 24. The extrusion slide 26 is connected to the sliding sleeve 18 through the connecting rod 28, and the drive shaft 16 slides through the extrusion slide 26 and the gas delivery box 24.

[0030] In actual application, by controlling the stepper motor 14 to be powered on and rotated, the driving shaft 16 can be driven to rotate. When the driving shaft 16 rotates, the inner sleeve 27 and the sliding sleeve 18 can be driven to reciprocate in the vertical direction along the intermediate column 17 under the action of the threaded cooperation between the driving shaft 16 and the inner sleeve 27, so that under the action of the push arm 19 and the connecting sleeve 23, the moving block 21 is driven to move along the direction of the slide groove 20, and under the action of the mounting sleeve 15, the first supply pipe 5 and the exhaust seat 7 are driven to perform linear reciprocating motion around the mounting seat 1, so as to adjust the position of the exhaust seat 7 and expand the entire oxygen supply range. In addition, during the reciprocating motion of the sliding sleeve 18 along the intermediate column 17, the extrusion slide plate 26 can be driven to reciprocate along the gas box 24, so that the oxygen in the oxygen tank 2 is drawn into the gas box 24 and finally input into the first supply pipe 5, so that it is finally discharged from the exhaust seat 7, so as to realize the oxygen supply work for the crab breeding pond.

[0031] How this application works: The entire device is installed at the set oxygen supply position of the crab breeding pond by using the foot seat 13. At the same time, according to the depth of the crab breeding pond, the foot seat 13 can be manually rotated to drive the second threaded rod 31 to rotate. Under the threaded cooperation between the second threaded rod 31 and the support column 12, the distance between the support column 12 and the foot seat 13 is adjusted, thereby realizing adaptive adjustment of the height of the entire device. According to the depth of the crab breeding pond, the staff can rotate the exhaust seat 7 to drive the second supply pipe 6 to rotate. Under the threaded cooperation between the first threaded rod 30 and the first supply pipe 5, the second supply pipe 6 can be driven to rotate relative to the first supply pipe 5, thereby realizing the height adjustment of the exhaust seat 7, and facilitating accurate oxygen supply to crab breeding ponds of different water depths. By controlling the stepper motor 14 to be powered on and rotated, the drive shaft 16 can be driven to rotate. When the drive shaft 16 rotates, the inner sleeve 27 and the sliding sleeve 18 can be driven to move vertically along the intermediate column 17 under the threaded cooperation between the drive shaft 16 and the inner sleeve 27. The sliding sleeve 18 reciprocates in the direction, thereby, under the action of the push arm 19 and the connecting sleeve 23, the moving block 21 is driven to move along the direction of the slide groove 20, and under the action of the mounting sleeve 15, the first supply pipe 5 and the exhaust seat 7 are driven to perform linear reciprocating motion around the mounting seat 1, thereby realizing the adjustment of the position of the exhaust seat 7 and expanding the entire oxygen supply range. In this process, the gear 9 can be driven to move synchronously, and under the meshing action between the gear 9 and the rack 10, the exhaust seat 7 can be driven to rotate during the linear motion, thereby adjusting the position of the exhaust hole, so that the oxygen discharged from the exhaust hole can be evenly input into various positions in the water of the breeding pond, which is convenient for crabs at different positions to perform aerobic respiration and reduce the probability of dead crabs. In addition, during the reciprocating motion of the sliding sleeve 18 along the intermediate column 17, the squeezing slide plate 26 can be driven to reciprocate along the gas box 24, thereby drawing the oxygen in the oxygen tank 2 into the gas box 24 and finally inputting it into the first supply pipe 5, so that it is finally discharged from the exhaust seat 7, thereby realizing the oxygen supply work for the crab breeding pond. On the one hand, the air in the oxygen tank 2 can be intermittently input into the exhaust seat 7 along the exhaust connection component, so that the oxygen is discharged from the exhaust seat 7 into the water in the breeding pond to supply the aerobic respiration of the crabs. On the other hand, when the gas transmission component is driven to work, the position of the exhaust connection component and the exhaust seat 7 can be adjusted to adjust the range of oxygen supply to the crabs to avoid the phenomenon of crabs gathering and trampling. On the other hand, the amount of exercise of the crabs can be increased. The crabs move along with the movement of the exhaust seat 7, thereby increasing the texture of the crab meat in the later stage.

[0032] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crab breeding oxygen supply system, comprising a mounting seat, an oxygen tank, a base, a support frame and a foot seat, wherein the mounting seat is arranged on one side of the base, the mounting seat is connected to the base through the support frame, the oxygen tanks are arranged in a plurality and are arranged on the mounting seat, a group of support plates are symmetrically arranged on the mounting seat, a mounting plate is connected between the support plates, an installation window for installing the oxygen tank is formed on the mounting plate, the foot seats are arranged in a plurality and are arranged on the base, the foot seats are arranged on a side of the base away from the mounting seat, and the invention is characterized in that: The oxygen supply system also includes an exhaust seat, an exhaust connection assembly and a driven gas delivery assembly. The exhaust seats are movably arranged around the mounting seat, and a plurality of exhaust holes are arranged on the exhaust seat. The exhaust connection assembly is arranged on the mounting seat and connects the exhaust seat with the oxygen tank. The driven gas delivery assembly is arranged on the mounting seat and is connected to the oxygen tank and the exhaust connection assembly. When the driven gas delivery assembly is in operation, it controls the oxygen in the oxygen tank to enter the oxygen tank along the exhaust connection assembly. When the driven gas delivery assembly is in operation, it adjusts the position of the exhaust seat.

2. The crab farming oxygen supply system according to claim 1, characterized in that: A plurality of support columns are arranged on the base, the number of the support columns is the same as the number of the foot seats, the foot seats are movably arranged on one side of the support columns, a second threaded rod is arranged on the foot seats, one end of the second threaded rod is slidably inserted into the support column and the two are threadedly matched.

3. The crab farming oxygen supply system according to claim 2, characterized in that: The exhaust connection assembly includes an exhaust pipe fitting, a telescopic tube and a rotating power member. The exhaust pipe fitting is movably arranged around the base. One end of the exhaust pipe fitting is connected to the exhaust seat, and the other end is connected to the oxygen tank through the telescopic tube. The rotating power member is arranged between the base and the exhaust pipe fitting. When the exhaust pipe fitting and the exhaust seat move relative to the base, the exhaust seat is controlled to rotate through the rotating power member.

4. The crab breeding oxygen supply system according to claim 3, characterized in that: The exhaust pipe fitting includes a first supply pipe, a second supply pipe, a slider and a first threaded rod, the slider is movably arranged around the oxygen tank, the slider is connected to the telescopic tube, one end of the first supply pipe is connected to the slider, the second supply pipe is movably arranged on a side of the first supply pipe close to the exhaust seat, the second supply pipe is connected to the exhaust seat, the first threaded rod is movably inserted into the first supply pipe and the two are threadedly matched, and one end of the first threaded rod is connected to the second supply pipe.

5. The crab breeding oxygen supply system according to claim 4, characterized in that: The rotating power part includes a gear and a rack. The gear is sleeved on the outer wall of the first supply pipe, and the rack is arranged on the base and meshes with the gear.

6. The crab farming oxygen supply system according to claim 4, characterized in that: The driving gas delivery assembly includes a positioning module and a gas delivery module. The positioning module is arranged on the mounting seat and connected to the first supply pipe, and is used to adjust the distance between the first supply pipe and the base. The gas delivery module is arranged on the mounting seat and connected to the positioning module. The gas delivery module connects the oxygen tank and the telescopic tube. When the positioning module is working, it controls the gas delivery module to work synchronously and inputs the air in the oxygen tank into the telescopic tube.

7. The crab farming oxygen supply system according to claim 6, characterized in that: The positioning module includes a power element, an intermediate column, a sliding sleeve, an inner sleeve body, a driving shaft and a transmission member. The intermediate column is arranged on a mounting seat, the sliding sleeve is movably sleeved on the outer wall of the intermediate column, the inner sleeve body is movably arranged in the intermediate column and slides through the intermediate column, the inner sleeve body and the sliding sleeve are connected, the driving shaft is movably arranged on a mounting plate, a thread groove is formed on the driving shaft, the driving shaft is threadedly matched with the inner sleeve body through the thread groove, the power element is arranged on the mounting plate and its output end is connected to the driving shaft, the sliding sleeve is connected to the first supply pipe through the transmission member, and when the sliding sleeve moves along the intermediate column, the exhaust seat can be controlled to move relative to the base through the transmission member.

8. The crab farming oxygen supply system according to claim 7, characterized in that: The transmission part includes a push arm, a connecting sleeve, a moving block and a mounting sleeve. The mounting seat is ring-shaped with a plurality of slide grooves, and a moving block is movably arranged in each of the slide grooves. The moving block and the mounting seat are elastically connected. A connecting sleeve is movably arranged on the moving block, and the connecting sleeve is movably connected to the push arm and the sliding sleeve. One end of the mounting sleeve is connected to the moving block, and the other end of the mounting sleeve is sleeved on the first supply pipe. Limiting rings are arranged on both sides of the mounting sleeve on the first supply pipe.

9. The crab farming oxygen supply system according to claim 8, characterized in that: The gas delivery module includes a gas delivery box, an extrusion slide and a connecting rod. The gas delivery box is arranged on a mounting plate. The extrusion slide is movably arranged in the gas delivery box. The extrusion slide is connected to the sliding sleeve through the connecting rod. The drive shaft slides through the extrusion slide and the gas delivery box.

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