Water-cooled seafood constant temperature machine

Abstract

The invention relates to the technical field of seafood storage, and discloses a water-cooled seafood constant temperature machine which comprises a fishpond and a plurality of compressor cooling systems arranged in the fishpond, the compressor cooling systems are arranged at the bottom of the fishpond, each compressor cooling system comprises two cylindrical compressor bodies, and the compressor bodies are arranged in the fishpond. A stamping piston and an air pressure piston are arranged in the compressor body in a reciprocating sliding mode and connected through a connecting rod, the compressor body is divided into a compression chamber and an evaporation chamber by the air pressure piston, and a propelling mechanism for driving the stamping piston to slide in a reciprocating mode is further arranged on the fish pond. Water in the fishpond is extracted from the bottom, water is supplemented into the fishpond from the position near the side wall of the fishpond and the top of the fishpond, and therefore water circulation is formed, water flowing can be accelerated, supplemented cold water is rapidly diffused into the whole fishpond, and the problem that the water temperature of the fishpond is not evenly distributed is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of seafood storage, and particularly to a water-cooled seafood constant temperature machine. Background Art

[0002] Seafood constant temperature machines can be applied to various seafood product fish ponds to keep the water temperature in the fish ponds constant, providing a suitable water temperature environment for seafood products. Especially in summer, the water temperature in the fish ponds of restaurants and hotels will rise, which will have an impact on the seafood in the fish ponds. Therefore, a seafood constant temperature machine is needed to conduct water-cooling regulation on the water temperature in the fish ponds. However, compared with existing seafood constant temperature machines, there are usually the following problems:

[0003] Firstly, during the cooling process of the water body in the fish pond, the water body is directly cooled, which will cause the water body in some areas of the fish pond to be in a low-temperature state, while the other part of the water body is in a normal temperature state. This will result in a temperature difference in the water body in the fish pond during the water-cooling period, and it needs to be slowly mixed over time, which is likely to have an impact on the fish in the fish pond;

[0004] Secondly, generally, the water temperature in the fish pond rises when the external high-temperature source contacts the surface water source, or the water body close to the fish tank area. Then, the temperature rise of this part of the water will be transferred to the deep water body in the fish tank through heat conduction, thereby causing the overall temperature of the water body in the fish pond to rise.

[0005] Therefore, we have designed a water-cooled seafood constant temperature machine. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem that the water temperature rises when the external high-temperature source contacts the surface water source, or the water body close to the fish tank area, and then the temperature rise of this part of the water is transferred to the deep water body in the fish tank through heat conduction, thereby causing the overall temperature of the water body in the fish pond to rise, and to propose a water-cooled seafood constant temperature machine.

[0007] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0008] A water-cooled seafood constant temperature machine includes a fish pond and a plurality of compressor cooling systems arranged in the fish pond. The compressor cooling systems are arranged at the bottom of the fish pond. Each compressor cooling system includes two compressor bodies. The compressor bodies are cylindrical. A stamping piston and a pneumatic piston slide reciprocally in the compressor body, and the stamping piston and the pneumatic piston are connected by a connecting rod. The pneumatic piston divides the compressor body into a compression chamber and an evaporation chamber. A propulsion mechanism for driving the stamping piston to slide reciprocally is also provided on the fish pond. A plurality of cold water discharge racks for discharging cooling water are provided on the side wall and the top of the fish pond. The reciprocally sliding stamping piston pumps the water in the fish pond into the compressor body and then transports it to the cold water discharge racks.

[0009] Preferably, the propulsion mechanism includes:

[0010] A drive shaft is perpendicularly arranged with respect to the compressor body and is located between two compressor bodies. Sealing plates are fixedly provided at opposite ends of the compressor body. A pull rod that penetrates the sealing plate and is connected to the stamping piston is also provided on the compressor body.

[0011] Side frames: There are two side frames. The two side frames are fixed on the outer sidewall of the drive shaft. A notch is provided on the drive shaft between the two side frames. A fixed shaft is connected to the end far from the drive shaft. The pull rods on both sides of the drive shaft are rotationally connected to the fixed shaft through connecting frames.

[0012] Preferably, a spiral tube is inserted into the stamping piston. The spiral tube is U-shaped and placed in the evaporation chamber, and its outer sidewall is bent in a wavy shape. Both ends of the spiral tube penetrate the stamping piston.

[0013] Preferably, a water inlet pipe and a water outlet pipe penetrate through the sidewall of the compressor body. A second one-way piston and a first one-way piston are respectively provided on the water inlet pipe and the water outlet pipe. The water flow direction of the second one-way piston is into the compressor body, and the water flow direction of the first one-way piston is out of the compressor body.

[0014] The water inlet pipe extends into the fishpond, and a filter screen for filtering debris is installed at the top of the water inlet pipe.

[0015] Preferably, the first one-way piston is communicated with one end of the spiral tube through a second rubber hose, and the water outlet pipe leads the water into the cold water discharge rack.

[0016] Preferably, an inner cavity is provided in the cold water discharge rack. A plurality of built-in pipes are provided on the inner wall of the fishpond. The water outlet pipe is communicated with the built-in pipes, and the built-in pipes are communicated with the inner cavity of the cold water discharge rack on the sidewall of the fishpond through a second through pipe.

[0017] Preferably, the cold water discharge rack at the top of the fishpond is rotatably connected to the top of the inner wall of the fishpond through a rotating hinge. The cold water discharge rack on the sidewall of the fishpond is adsorbed and fixed on the inner wall of the fishpond through a suction cup. The built-in pipes are communicated with the inner cavity of the cold water discharge rack at the top of the fishpond through a first rubber hose and a first through pipe.

[0018] Preferably, inclined side surfaces are symmetrically provided on both sides of the cold water discharge rack. The inclined side surfaces of the cold water discharge rack at the top of the fishpond face obliquely upward, and the inclined side surfaces of the cold water discharge rack on the sidewall of the fishpond face the inner wall of the fishpond.

[0019] Preferably, an impact plate slides in the inner cavity of the cold water discharge rack, and the impact plate expands and contracts and resets in the inner cavity through a return spring.

[0020] Preferably, a rotating hole is provided on the inclined side surface, and a rotating cylinder rotates in the rotating hole. Spraying holes are provided on the rotating cylinder, and a pulling rope is connected between the rotating cylinder and the impact plate.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, the water in the fish pond is pumped from the bottom, and the water supplement to the fish pond enters from near the side wall of the fish pond and the top of the fish pond, thus forming a water cycle, which can also accelerate the water flow, quickly spread the supplemented cold water throughout the fish pond, and avoid the problem of uneven water temperature distribution in the fish pond.

[0023] 2. In the present invention, a plurality of cold water discharge racks for discharging cooling water are provided on both the side wall and the top of the fish pond. The cooled water will be discharged from the cold water discharge racks on the side wall and the top of the fish pond. This cold water discharge method can effectively prevent the external high-temperature source from contacting the surface water source or the water body close to the fish pond area, avoiding the overall temperature rise of the water body in the fish pond caused by the heat conduction of the rising water temperature to the deep water body in the fish pond. And this cold water discharge method can effectively cool the initial water temperature rising area of the water body, and can effectively block heat and cool the water body in the fish pond. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a water-cooled seafood constant temperature machine proposed by the present invention;

[0025] Figure 2 is Figure 1 a schematic enlarged view of the structure at A in

[0026] Figure 3 is a schematic internal structure diagram of a compressor body in a water-cooled seafood constant temperature machine proposed by the present invention;

[0027] Figure 4 is Figure 3 a schematic enlarged view of the structure at B in

[0028] Figure 5 is a schematic combined state structure diagram of a cold water discharge rack in a water-cooled seafood constant temperature machine proposed by the present invention;

[0029] Figure 6 is a schematic internal structure diagram of a cold water discharge rack in a water-cooled seafood constant temperature machine proposed by the present invention;

[0030] Figure 7 is a side view of a cold water discharge rack in a water-cooled seafood constant temperature machine proposed by the present invention.

[0031] In the figure: 1, fish pond; 2, cold water discharge rack; 3, first rubber hose; 4, first through pipe; 5, rotating hinge; 6, rotating cylinder; 7, water spray hole; 8, inner cavity; 9, second through pipe; 10, impact plate; 11, pull rope; 12, return spring; 13, inclined side; 14, compressor body; 15, drive shaft; 16, stamping piston; 17, spiral pipe; 18, water inlet pipe; 19, water outlet pipe; 20, second rubber hose; 21, pull rod; 22, filter screen; 23, first one-way piston; 24, second one-way piston; 25, blocking plate; 26, side rack; 27, connecting rack. Detailed implementation method

[0032] Refer to Figures 1-7 , a water-cooled seafood constant temperature machine, including a fish pond 1 and a plurality of compressor cooling systems arranged in the fish pond 1. The compressor cooling systems are arranged at the bottom of the fish pond 1. It should be noted that the refrigeration working principle of the compressor cooling system is based on the vapor compression refrigeration cycle, and mainly realizes heat transfer through four processes: compression, condensation, expansion, and evaporation. First, compress the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas; the high-temperature and high-pressure gas releases heat and condenses into a liquid; then reduce the pressure and temperature of the refrigerant to prepare for evaporation and heat absorption; finally, the refrigerant absorbs the heat of the water body in the fish pond 1 to realize the cooling of the water body in the fish pond 1. Among them, the low-temperature and low-pressure gas in the evaporator is inhaled by the compressor again, and the cycle is repeated. It should be noted that in this solution, the gas in the compression chamber is pressurized, and then the refrigerant flows into the evaporation chamber to absorb heat. After absorbing heat, it flows back into the compression chamber again, and so on. The compressor cooling system is a prior art and will not be elaborated here.

[0033] Among them, the compressor cooling system includes two compressor bodies 14. The compressor body 14 is cylindrical. A stamping piston 16 and a pneumatic piston slide reciprocally in the compressor body 14, and the stamping piston 16 and the pneumatic piston are connected by a connecting rod. The pneumatic piston divides the compressor body 14 into a compression chamber and an evaporation chamber. The pneumatic piston is used to compress the gaseous refrigerant into a liquid, and then this part of the liquid refrigerant flows into the evaporation chamber. At this time, the air pressure in the evaporation chamber is less than that in the compression chamber, so it will evaporate and absorb heat, thereby absorbing the heat of the water body flowing into the evaporation chamber to complete the cooling of the water body. Then, this part of the gaseous refrigerant is re-input into the compression chamber, thus being in a cyclic state. Regarding the compression of the gaseous refrigerant into a liquid, the method of compressing the gaseous refrigerant can also adopt additional methods, and the methods of flowing the refrigerant into and out of the two chambers of the compression chamber and the evaporation chamber are all prior arts and will not be elaborated here.

[0034] A propulsion mechanism for driving the reciprocating sliding of the stamping piston 16 is also provided on the fish pond 1. This propulsion mechanism provides the driving force for the movement of the stamping piston 16 and the pneumatic piston. The propulsion mechanism includes a driving shaft 15, which is located between the two compressor bodies 14. A driving motor for driving the rotation of the driving shaft 15 is also provided on the fish pond 1, and the output end of the driving motor is fixedly connected to the driving shaft 15. The driving shaft 15 is arranged perpendicular to the compressor body 14, so that it can drive the stamping piston 16 and the pneumatic piston to operate stably within the compressor body 14.

[0035] Sealing plates 25 are fixed to the opposite ends of the compressor body 14. A pull rod 21 that penetrates the sealing plate 25 and is connected to the stamping piston 16 is also provided on the compressor body 14. This setting can ensure that the pull rod 21 expands and contracts coaxially within the compressor body 14. And due to the presence of the sealing plate 25, a closed space is formed within the compressor body 14. The stamping piston 16 and the pneumatic piston divide the inside of the compressor body 14 into three chambers, namely the compression chamber, the evaporation chamber, and the water intake and drainage chamber. These three chambers respectively play the roles of compressing the refrigerant into a liquid state, the refrigerant vaporizing to absorb heat from the water body, and introducing and discharging the water body.

[0036] Referring to Figure 3 and Figure 4 In this state, the propulsion mechanism also includes side frames 26. There are two side frames 26. The two side frames 26 are fixed to the outer wall of the driving shaft 15. A notch is provided on the driving shaft 15 between the two side frames 26. A fixed shaft is connected to the end far from the driving shaft 15. The pull rods 21 on both sides of the driving shaft 15 are rotationally connected to the fixed shaft through connecting frames 27. Therefore, after the driving motor drives the driving shaft 15 to rotate, it can drive the pull rods 21 on both sides to reciprocate, and finally drive the stamping piston 16 and the pneumatic piston to reciprocate within the compressor body 14.

[0037] The side wall of the compressor body 14 is provided with a water inlet pipe 18 and a water outlet pipe 19 in a penetrating manner. A second one-way piston 24 and a first one-way piston 23 are respectively provided on the water inlet pipe 18 and the water outlet pipe 19. The water flow direction of the second one-way piston 24 is into the compressor body 14, and the water flow direction of the first one-way piston 23 is out of the compressor body 14. This setting is to ensure that when the pull rod 21 drives the stamping piston 16 to move, a negative pressure is generated in the water intake and drainage chamber between the stamping piston 16 and the sealing plate 25, which is convenient for pumping the water body in the fish pond 1 into the compressor body 14 through the second one-way piston 24 on the water inlet pipe 18. Then, as the stamping piston 16 moves in the reverse direction, the water body in the water intake and drainage chamber is squeezed out through the first one-way piston 23 on the water outlet pipe 19. Due to one reciprocating movement of the stamping piston 16, one pumping and draining operation of the water body in the water intake and drainage chamber is performed.

[0038] Among them, the water inlet pipe 18 extends into the fish pond 1, and a filter screen 22 for filtering sundries is installed at the top of the water inlet pipe 18, which can block impurities in the water body. At the same time, the water body in the fish pond 1 can be pumped from the bottom, and the supplement of the water body in the fish pond 1 is from near the side wall of the fish pond 1 and the top of the fish pond 1, thus forming a water cycle, which can also accelerate the water flow, quickly spread the supplemented cold water to the whole fish pond 1, and avoid the problem of uneven water temperature distribution in the fish pond 1.

[0039] A spiral tube 17 is inserted into the punching piston 16, and both ends of the spiral tube 17 penetrate through the punching piston 16. The two ends of the spiral tube 17 are located in the water intake chamber. The first one-way piston 23 is connected to one end of the spiral tube 17 through the second rubber hose 20, and the water outlet pipe 19 leads water into the cold water discharge rack 2. Therefore, when the punching piston 16 moves, the water intake chamber is in a negative pressure state. Therefore, the water intake chamber will be in a water replenishing state, and at this time, the compression chamber is in the step of compressing the refrigerant;

[0040] When the punching piston 16 starts to move in the reverse direction, the compressed refrigerant in the compression chamber will be transferred to the evaporation chamber. At this time, the water intake chamber is in a squeezing state. Therefore, the water body originally in the water intake chamber will enter the spiral tube 17, and then flow out of the water outlet pipe 19 through the second rubber hose 20. Therefore, the water body passing through the spiral tube 17 will absorb heat from the vaporized refrigerant, thereby cooling the water body, and then discharging it from the water outlet pipe 19, completing the cooling effect on the water body absorbed into the compressor body 14.

[0041] At the same time, the spiral tube 17 is U-shaped and placed in the evaporation chamber, and the outer side wall is bent in a wave shape, which can make the surface of the spiral tube 17 contact with the evaporation chamber as much as possible, so as to achieve a better cooling effect on the water body. The reciprocating punching piston 16 pumps the water in the fish pond 1 into the compressor body 14 and then transports it to the cold water discharge rack 2. At the same time, the water body in the spiral tube 17 is in a flowing state during the cooling process, so the cooled water can be continuously discharged.

[0042] A plurality of cold water discharge racks 2 for discharging cooling water are provided on the side wall and the top of the fish pond 1. The cooled water body will be discharged from the cold water discharge racks 2 on the side wall and the top of the fish pond 1. It should be noted that this cold water discharge method can effectively prevent the external high-temperature source from contacting the surface water source or the water body close to the fish pond 1 area, avoiding the water temperature rise from being transferred to the deep water body in the fish pond 1 through heat conduction, thereby causing the overall water temperature in the fish pond 1 to rise. And this cold water discharge method can effectively cool the initial water temperature rising area of the water body, and can effectively block heat and cool the water body in the fish pond 1.

[0043] Refer to Figures 5-7State, a cold water discharge rack 2 is provided with an inner cavity 8. A plurality of built-in pipes are provided on the inner wall of the fish pond 1. The water outlet pipe 19 is communicated with the built-in pipes. The built-in pipes are communicated with the inner cavity 8 of the cold water discharge rack 2 on the side wall of the fish pond 1 through a second through pipe 9. The cold water discharge rack 2 on the side wall of the fish pond 1 is adsorbed and fixed on the inner wall of the fish pond 1 through a suction cup. The built-in pipes are communicated with the inner cavity 8 of the cold water discharge rack 2 on the top of the fish pond 1 through a first rubber hose 3 and a first through pipe 4. Therefore, a part of the cold water discharged from the water outlet pipe 19 flows through the second through pipe 9 to the cold water discharge rack 2 on the side wall of the fish pond 1 through the built-in pipes, and the other part of the cold water flows through the first through pipe 4 to the cold water discharge rack 2 on the top of the fish pond 1.

[0044] Among them, the cold water discharge rack 2 on the top of the fish pond 1 is rotatably connected to the top of the inner wall of the fish pond 1 through a rotating hinge 5, which is convenient for taking fish in the fish pond 1. Only by rotating the cold water discharge rack 2 on the top of the fish pond 1 can the fish be taken. At the same time, due to the setting of the cold water discharge rack 2 on the top of the fish pond 1, the cold water discharged from the cold water discharge rack 2 on the top of the fish pond 1 will form a parabolic shape, which can increase the contact area between the water body and the air, improve the oxygen content in the overall fish pond 1, and also play a role in cooling and heat insulation of the water body on the top of the fish pond 1.

[0045] Refer to Figure 6 State, the cold water discharge rack 2 is symmetrically provided with inclined side surfaces 13 on both sides. This is convenient for the cooled water body to be discharged from the side wall of the inclined side surface 13. The inclined side surface 13 of the cold water discharge rack 2 located on the top of the fish pond 1 is inclined upward, which plays the above-mentioned role of increasing the oxygen content in the overall fish pond 1 and also plays a role in cooling and heat insulation of the water body on the top of the fish pond 1; the inclined side surface 13 of the cold water discharge rack 2 located on the side wall of the fish pond 1 faces the inner wall of the fish pond 1, which can cause the cold water to directly spray and contact the side wall of the fish pond 1 and cool the side wall of the fish pond 1. At the same time, it can also play a role in cooling and heat insulation of the water body near the side wall of the fish pond 1.

[0046] An impact plate 10 slides in the inner cavity 8 of the cold water discharge rack 2, and the impact plate 10 is telescoped and reset in the inner cavity 8 through a return spring 12. It should be noted that the cold water flow entering the inner cavity 8 of the cold water discharge rack 2 will impact on the impact plate 10. Since the cooling water does not exist all the time but is intermittently injected into the inner cavity 8, the cooling water will intermittently impact on the impact plate 10, thereby causing the impact plate 10 to slide telescopically in the inner cavity 8 under the action of the return spring 12.

[0047] The inclined side surface 13 is provided with a rotating hole, and a rotating cylinder 6 rotates in the rotating hole. A reset spring for driving the rotating cylinder 6 to reset is arranged in the rotating hole. A water spraying hole 7 is formed in the rotating cylinder 6. A pulling rope 11 is connected between the rotating cylinder 6 and the impact plate 10. Therefore, every reciprocating movement of the impact plate 10 can drive the rotating cylinder 6 to rotate in the rotating hole through the pulling rope 11. Under the action of the reset spring, the rotating cylinder 6 is pulled to swing reciprocally, and the cooling water will be sprayed out from the water spraying hole 7 on the swinging rotating cylinder 6, thereby forming a swinging water spraying column, which can expand the cooling range and also accelerate the mixing of the cold water body and the water body in the original fish pond 1.

[0048] Therefore, through the cold water discharge rack 2 arranged on the side wall and the top of the fish pond 1, the cold water discharged from the cold water discharge rack 2 can effectively prevent the transfer of heat, so that the range where the cold water exists in the fish pond 1 is the top and the side wall of the fish pond 1, and it will not gush out from the fish pond 1. It can provide the needs for the stability of the middle water body in the whole fish pond. At the same time, the edge of the whole water body of the fish pond 1 is always within the range of cold water supplement, effectively blocking the external high-temperature source from contacting the surface water source or the water body close to the area of the fish pond 1, and avoiding the water temperature rise from being transferred to the deep water body of the fish pond 1 through heat conduction.

[0049] The working principle of the present invention is as follows:

[0050] First, start the compressor cooling system and the driving motor. The driving motor drives the stamping piston 16 and the pneumatic piston to reciprocate in the compressor body 14. The compressor cooling system compresses the gaseous refrigerant and allows the refrigerant to flow in and out of the two chambers of the compression chamber and the evaporation chamber. Among them, the stamping piston 16 and the pneumatic piston divide the compressor body 14 into three chambers, namely the compression chamber, the evaporation chamber and the water diversion chamber. These three chambers respectively play the roles of compressing the refrigerant into a liquid state, the refrigerant gasifying to absorb heat from the water body, and introducing and discharging the water body.

[0051] Then, during one reciprocating movement of the stamping piston 16, a pumping and draining operation is performed on the water in the water diversion chamber. The water pipe 19 leads the water into the cold water discharge rack 2. Therefore, when the stamping piston 16 moves, the water diversion chamber is in a negative pressure state. Therefore, the water diversion chamber is in a water replenishing state, and at this time, the compression chamber is in the step of compressing the refrigerant.

[0052] When the stamping piston 16 starts to move in the reverse direction, the compressed refrigerant in the compression chamber will be transferred to the evaporation chamber. At this time, the water diversion chamber is in a squeezing state. Therefore, the water body originally in the water diversion chamber enters the spiral pipe 17 and then flows out of the water outlet pipe 19 through the second rubber hose 20. Therefore, the water body passing through the spiral pipe 17 will absorb heat from the gasified refrigerant, thereby cooling the water body, and then discharging it from the water outlet pipe 19, completing the cooling of the water body absorbed into the compressor body 14.

[0053] Since a plurality of cold water discharge racks 2 for discharging cooling water are provided on the side wall and the top of the fish pond 1, the water body after cooling will be discharged from the cold water discharge racks 2 on the side wall and the top of the fish pond 1. This cold water discharge method can effectively prevent the external high-temperature source from contacting the surface water source or the water body close to the fish pond 1 area, avoiding the water temperature rise from being transferred to the deep water body in the fish pond 1 through heat conduction, thereby causing the overall temperature of the water body in the fish pond 1 to rise. And this cold water discharge method can effectively cool the initial water temperature rise area and can effectively block heat and cool the water body in the fish pond 1.

[0054] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A water-cooled seafood thermostat, comprising a fish pond and a plurality of compressor cooling systems arranged in the fish pond, wherein the compressor cooling systems are arranged at the bottom of the fish pond, characterized in that: The compressor cooling system includes two compressor bodies. The compressor body is cylindrical. A stamping piston and a pneumatic piston slide back and forth in the compressor body. The stamping piston and the pneumatic piston are connected by a connecting rod. The pneumatic piston divides the compressor body into a compression chamber and an evaporation chamber. A propulsion mechanism for driving the stamping piston to slide back and forth is also provided on the fish pond. Multiple cold water discharge racks for discharging cooling water are provided on the side walls and the top of the fish pond. The reciprocating stamping piston draws water from the fish pond into the compressor body and then transports it to the cold water discharge rack.

2. A water-cooled seafood thermostat according to claim 1, characterized in that: The promotion agencies include: A drive shaft, the drive shaft and the compressor body are arranged perpendicularly to each other and located between the two compressor bodies. The opposite ends of the compressor bodies are fixed with blocking plates. The compressor bodies are also provided with a pulling rod that penetrates the blocking plate and is connected to the stamping piston; Side frames, there are two side frames, the two side frames are fixed to the outer side wall of the driving shaft, a notch is opened on the driving shaft between the two side frames, and a fixed shaft is connected to one end away from the driving shaft, and the pulling rods located on both sides of the driving shaft are rotatably connected to the fixed shaft through the connecting frame.

3. A water-cooled seafood thermostat according to claim 1, characterized in that: A spiral tube is inserted on the stamping piston. The spiral tube is U-shaped and placed in the evaporation chamber. The outer wall of the spiral tube is bent and wavy. Both ends of the spiral tube pass through the stamping piston.

4. A water-cooled seafood thermostat according to claim 3, characterized in that: A water inlet pipe and a water outlet pipe are provided through the side wall of the compressor body, and a second one-way piston and a first one-way piston are provided on the water inlet pipe and the water outlet pipe respectively. The water flow direction of the second one-way piston is to flow into the compressor body, and the water flow direction of the first one-way piston is to flow out of the compressor body. The water inlet pipe extends into the fish pond, and a filter screen for filtering debris is installed on the top of the water inlet pipe.

5. A water-cooled seafood thermostat according to claim 4, characterized in that: The first one-way piston is connected with one end of the spiral tube through the second rubber hose, and the water outlet pipe passes water into the cold water discharge rack.

6. A water-cooled seafood thermostat according to claim 4, characterized in that: An inner cavity is provided in the cold water discharge rack, a plurality of inner pipes are provided on the inner wall of the fish pond, the water outlet pipe is communicated with the inner pipes, and the inner pipes are communicated with the inner cavity of the cold water discharge rack on the side wall of the fish pond through the second through pipe.

7. A water-cooled seafood thermostat according to claim 6, characterized in that: The cold water discharge frame on the top of the fish pond is rotatably connected to the top of the inner wall of the fish pond through a rotating hinge, the cold water discharge frame on the side wall of the fish pond is fixed to the inner wall of the fish pond through a suction cup, and the built-in pipeline is connected to the inner cavity of the cold water discharge frame on the top of the fish pond through a first rubber hose and a first through pipe.

8. The water-cooled seafood thermostat according to claim 1, characterized in that: The cold water discharge frame has symmetrically inclined side surfaces on both sides. The inclined side surfaces of the cold water discharge frame on the top of the fish pond face obliquely upward, and the inclined side surfaces of the cold water discharge frame on the side wall of the fish pond face the inner wall of the fish pond.

9. The water-cooled seafood thermostat according to claim 8, characterized in that: An impact plate is slidably arranged in the inner cavity of the cold water discharge rack, and the impact plate is retracted and reset in the inner cavity by a reset spring.

10. The water-cooled seafood thermostat according to claim 9, characterized in that: A rotating hole is arranged on the inclined side surface, and a rotating cylinder is rotated in the rotating hole, a water spraying hole is opened on the rotating cylinder, and a pull rope is connected between the rotating cylinder and the impact plate.

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