Automatic sewage discharge valve for aquaculture

Abstract

This utility model discloses an automatic sewage discharge valve for aquaculture, belonging to the field of valve technology. Its features include a three-way pipe, a connecting block, a piston, and a telescopic rod. A top sleeve is fixedly installed on the inner wall of the upper end of the three-way pipe. The top of the connecting block is connected to the top sleeve, the middle part is connected to the telescopic rod, and the lower part is connected to the piston. Compared with existing technologies, it features automatic piston opening and closing controlled by an electric push-pull rod or a cylinder.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to an automatic sewage discharge valve for aquaculture. Background Technology

[0002] Against the backdrop of today's booming socio-economic development and the continuous growth in people's demand for aquatic products, the aquaculture industry is experiencing rapid growth. As the scale of aquaculture expands like a snowball, the degree of intensification is also increasing. The original scattered, small-scale aquaculture model is gradually being replaced by large-scale, high-density intensive aquaculture. Aquaculture farms are springing up one after another, aquaculture areas are constantly expanding, and the species and quantities of aquaculture are also increasing significantly.

[0003] However, while this rapid expansion and high-intensity aquaculture model brings economic benefits, it also triggers a series of environmental problems. Pollution from aquaculture itself has become a significant factor in environmental pollution. In high-density aquaculture, farmers often feed large quantities of aquatic organisms to meet their growth needs. However, these feeds cannot be fully consumed and digested by the organisms, leaving some residue in the aquaculture ponds. Over time, this uneaten feed accumulates and ferments at the bottom of the ponds, producing large amounts of organic matter. Simultaneously, the excrement of aquatic organisms accumulates in the ponds, causing a sharp increase in the levels of nutrients such as nitrogen and phosphorus. These excessive nutrients not only lead to water quality deterioration and eutrophication but also breed large amounts of harmful microorganisms and algae, disrupting the ecological balance of the water bodies. Furthermore, various drugs and disinfectants are used to prevent and treat diseases in aquatic organisms. These chemicals also enter natural water bodies with the discharge of aquaculture wastewater, polluting the surrounding environment.

[0004] More seriously, the deterioration of the aquaculture environment often becomes a trigger for disease outbreaks. When the water quality in the aquaculture ponds deteriorates, the dissolved oxygen content decreases, and harmful substances increase, the living environment of aquatic organisms is severely threatened. Their immune systems are suppressed, their resistance decreases, and they become more susceptible to pathogens. Various bacteria, viruses, parasites, and other pathogens take the opportunity to multiply rapidly, causing various diseases, such as gill rot and enteritis commonly seen in fish, and white spot syndrome in shrimp. Once these diseases break out, they not only lead to mass mortality of aquatic organisms and huge economic losses for farmers, but also further exacerbate the deterioration of the aquaculture environment, creating a vicious cycle.

[0005] Therefore, in order to improve the aquaculture environment and ensure the sustainable development of aquaculture, timely discharge of wastewater from the aquaculture ponds is particularly important. Regular drainage can remove accumulated uneaten feed, feces, harmful microorganisms, and chemicals from the ponds, reducing nutrient levels, improving water quality, increasing dissolved oxygen, and creating a healthier and more stable living environment for aquatic organisms. Summary of the Invention

[0006] The purpose of this utility model is to address the shortcomings of the existing technology by providing an automatic sewage discharge valve for aquaculture, which achieves the purpose of automatically controlling the opening and closing of the piston through an electric push-pull rod or a cylinder.

[0007] The present invention provides an automatic sewage discharge valve for aquaculture, characterized in that it includes a three-way pipe, a connecting block, a piston, and a telescopic rod. A top sleeve is fixedly installed on the inner wall of the upper end of the three-way pipe. The top of the connecting block is connected to the top sleeve, the middle part is connected to the telescopic rod, and the lower part is connected to the piston.

[0008] Furthermore, a pin is fixedly installed on the top sleeve, and three connecting plates arranged in a triangular pattern are provided on the connecting block. The outer ends of the three connecting plates are respectively provided with through holes, and the through holes of the connecting plates at the top of the connecting block are rotatably connected to the pin on the top sleeve.

[0009] Furthermore, the central connecting plate of the connecting block is hinged to the inner rod of the telescopic rod.

[0010] Furthermore, the connecting plate at the bottom of the connecting block is connected to the ear plate.

[0011] Furthermore, a lug plate is fixedly installed at one end of the piston, and the connecting plate is hinged to the lug plate by a pin. The end of the connecting plate facing the back of the piston has an inclined surface, and the inclined surface of the connecting plate corresponds to the back of the piston.

[0012] Furthermore, a sealing ring is installed in the annular groove of the piston, and the sealing ring is embedded in the annular groove and occupies two-thirds of its own diameter.

[0013] Furthermore, a plug sleeve is fixedly installed inside the middle tube of the three-way pipe, and the plug sleeve can limit the piston.

[0014] Furthermore, the upper end of the tee pipe is connected to the connecting pipe, and a fixing hole is provided on the inner wall of the connecting pipe. A pin is fixedly installed in the fixing hole. The upper end of the telescopic rod is hinged to the pin in the connecting pipe. A spring is sleeved on the outer side of the inner rod of the telescopic rod. One end of the spring is connected to the lower end of the telescopic rod, and the other end of the spring rests on the connecting block.

[0015] Furthermore, the upper end of the connecting pipe is connected to the top pipe via a sleeve.

[0016] Furthermore, the lower end of the tee is connected to the bottom pipe.

[0017] Compared with the prior art, the present invention has the following outstanding advantages:

[0018] This invention uses a telescopic rod to drive a piston to control the opening and closing of a valve. The telescopic rod can be an electric push-pull rod or a cylinder. By controlling multiple electric push-pull rods or cylinders, it can be applied on a large scale to automatic water changing in aquaculture and water treatment. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is the right view of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 4 yes Figure 3 A magnified view of part A in the middle;

[0023] Among them, 1. bottom pipe; 2. tee pipe; 3. connecting pipe; 4. sleeve; 5. top pipe; 6. piston; 7. telescopic rod; 8. spring; 9. connecting block; 10. plug sleeve; 11. connecting plate; 12. top sleeve. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 and 2 As shown, this utility model includes a three-way pipe 2, a connecting block 9, a piston 6, and a telescopic rod 7. A top sleeve 12 is fixedly installed on the inner wall of the upper end of the three-way pipe 2. The top of the connecting block 9 is connected to the top sleeve 12, the middle part is connected to the telescopic rod 7, and the lower part is connected to the piston 6. When the telescopic rod 7 extends or retracts, the connecting block 9 uses the top sleeve 12 as a fulcrum and is pulled to rotate by the telescopic rod 7, which drives the piston 6 to move obliquely upward or obliquely downward.

[0026] like Figure 3 and 4 As shown, a pin is fixedly installed on the top sleeve 12, and three connecting plates 11 arranged in a triangle are provided on the connecting block 9. The outer ends of the three connecting plates 11 are respectively provided with through holes, and the through holes of the connecting plates 11 at the top of the connecting block 9 are rotatably connected to the pin on the top sleeve 12.

[0027] The connecting plate 11 in the middle of the connecting block 9 is hinged to the inner rod of the telescopic rod 7.

[0028] The connecting plate 11 at the bottom of the connecting block 9 is connected to the ear plate. The side wall of the piston 6 is provided with an annular groove. A sealing ring is installed in the annular groove of the piston 6, and the sealing ring is embedded in the annular groove and occupies two-thirds of its own diameter.

[0029] One end of the piston 6 is fixedly mounted with a lug plate, and the connecting plate 11 is hinged to the lug plate by a pin. The end of the connecting plate 11 facing the back of the piston 6 has an inclined surface, which corresponds to the back of the piston 6. The inclined surface of the connecting plate 11 can limit the piston 6, allowing the piston 6 to rotate slightly.

[0030] A plug sleeve 10 is fixedly installed inside the middle tube of the three-way pipe 2. The plug sleeve 10 can limit the piston 6. When the piston 6 slides obliquely and presses against the inner wall of the plug sleeve 10, the piston 6 blocks the middle tube of the three-way pipe 2.

[0031] The upper end of the three-way pipe 2 is connected to the connecting pipe 3. The inner wall of the connecting pipe 3 is provided with a fixing hole, and a pin is fixedly installed in the fixing hole. The upper end of the telescopic rod 7 is hinged to the pin in the connecting pipe 3. A spring 8 is sleeved on the outer side of the inner rod of the telescopic rod 7. One end of the spring 8 is connected to the lower end of the telescopic rod 7, and the other end of the spring 8 rests on the connecting block 9.

[0032] The upper end of the connecting pipe 3 is connected to the top pipe 5 through the sleeve 4. The length of the top pipe 5 can be set freely. When the length is higher than the water storage capacity, it can be used to solve the water hammer effect and achieve pressure relief when the valve is closed, protecting the valve from impact. When the length of the top pipe 5 is lower than the water storage capacity, it can be used as an overflow pipe.

[0033] The inner wall of the sleeve 4 and the wall of the connecting pipe 3 are provided with concentric fixing holes to more firmly fix the pin.

[0034] The lower end of the three-way pipe 2 is connected to the bottom pipe 1, and the height of the bottom pipe 1 determines the height of the lowest water level.

[0035] The telescopic rod 7 can be replaced by a cylinder, hydraulic cylinder, electric push-pull rod, or other components that can move linearly up and down or have limited movement.

[0036] The operating procedure is as follows: When using this utility model, the telescopic rod 7 extends, causing the connecting block 9 to move diagonally downwards, using the pin on the top sleeve as a fulcrum. The piston 6 then presses against the plug pipe, blocking the middle pipe of the three-way valve. At this time, the water flow at the drain outlet stops and, in conjunction with the spring 8 and the telescopic rod 7, applies pressure to the piston 6 to complete the closing action. When the telescopic rod 7 retracts, it causes the connecting block 9 to move diagonally upwards, using the pin on the top sleeve 12 as a fulcrum. The piston 6 then moves away from the plug sleeve 10, reaching the top where the valve opens, and water can flow through the inlet and out of the drain outlet.

[0037] It should be noted that the specific embodiments of this utility model have been described in detail. For those skilled in the art, all obvious changes made to it without departing from the spirit and scope of this utility model are within the protection scope of this utility model.

Claims

1. An automatic sewage discharge valve for aquaculture, characterized in that: The assembly includes a three-way pipe (2), a connecting block (9), a piston (6), and a telescopic rod (7). A top sleeve (12) is fixedly installed on the inner wall of the upper end of the three-way pipe (2). The top of the connecting block (9) is connected to the top sleeve (12), the middle part is connected to the telescopic rod (7), and the lower part is connected to the piston (6). A pin is fixedly installed on the top sleeve. The connecting block (9) is provided with three connecting plates (11) arranged in a triangular pattern. The outer ends of the three connecting plates (11) are respectively provided with through holes. The through holes of the connecting plates (11) at the top of the connecting block (9) are rotatably connected to the pin on the top sleeve. The middle connecting plate (11) of the connecting block (9) is hinged to the inner rod of the telescopic rod (7).

2. An automatic cleaning valve for aquaculture according to claim 1, characterized in that: The connecting plate (11) at the bottom of the connecting block (9) is connected to the ear plate.

3. An automatic cleaning valve for aquaculture according to claim 2, characterized in that: The piston (6) is fixedly mounted with an ear plate at one end. The connecting plate (11) is hinged to the ear plate by a pin. The end of the connecting plate (11) facing the back of the piston (6) has an inclined surface, and the inclined surface of the connecting plate (11) corresponds to the back of the piston (6).

4. An automatic cleaning valve for aquaculture according to claim 1, characterized in that: A sealing ring is installed in the annular groove of the piston (6), and the sealing ring is embedded in the annular groove and occupies two-thirds of its own diameter.

5. An automatic cleaning valve for aquaculture according to claim 1, characterized in that: A plug sleeve (10) is fixedly installed inside the middle tube of the three-way pipe (2), and the plug sleeve (10) can limit the piston (6).

6. An automatic cleaning valve for aquaculture according to claim 1, characterized in that: The upper end of the three-way pipe (2) is connected to the connecting pipe (3). The inner wall of the connecting pipe (3) is provided with a fixing hole. A pin is fixedly installed in the fixing hole. The upper end of the telescopic rod (7) is hinged to the pin in the connecting pipe (3). A spring (8) is sleeved on the outer side of the inner rod of the telescopic rod (7). One end of the spring (8) is connected to the lower end of the telescopic rod (7), and the other end of the spring (8) is pressed against the connecting block (9).

7. An automatic cleaning valve for aquaculture according to claim 6, characterized in that: The upper end of the connecting pipe (3) is connected to the top pipe (5) through the sleeve (4).

8. The automatic sewage discharge valve for aquaculture according to claim 1, characterized in that: The lower end of the tee pipe (2) is connected to the bottom pipe (1).

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