Aerator with protective structure

Abstract

The invention discloses an aerator with a protective structure, and relates to the technical field of aerators, the aerator comprises a lower casing internally provided with a rotor, a mechanical sealing seat, a direct connecting piece and a driving cover are sequentially arranged upwards along the center of the top of the lower casing, and the direct connecting piece is of an umbrella-shaped circular truncated cone structure and is composed of a mounting box and a connecting shaft; wherein the connecting shaft is coaxially arranged at the bottom of the mounting box and integrally formed with the mounting box, the mechanical sealing seat is axially inserted into the bottom of the connecting shaft, and the driving cover covers the top of the mounting box in an inverted mode; an integrated circuit board is installed at the position, close to the top wall, in the driving cover, a frequency conversion communication rod and a junction box are installed on the edge of the installation box, and an air extraction valve is arranged at the bottom of the installation box. In addition, timing opening and oxygenation control can be achieved, and the oxygenation efficiency of a large-range breeding area is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of oxygenators, in particular to an oxygenator with a protective structure. Background Art

[0002] The impeller aerator is a type of traditional aerator and is a machine used in the fishery breeding industry. Its main function is to drive the deep-water impeller to rotate through the motor, thereby increasing the oxygen content in the water to ensure that the fish in the water will not suffer from hypoxia. At the same time, it can also inhibit the growth of anaerobic bacteria in the water and prevent the pond water from deteriorating and threatening the living environment of the fish. The impeller aerator is generally composed of an upper drive cover and a lower motor. A large number of electronic components are installed in the drive cover. Since it is placed in water for a long time, it is easy for water vapor to enter the interior and accelerate the rust and oxidation of the electronic components. At the same time, the gap between the motor wiring harness and the drive cover can easily cause this situation to occur, which brings trouble to subsequent maintenance and repairs. Not only that, for large-scale breeding areas, whether the oxygenation method can be automatically turned on at a time is also very important. Summary of the Invention

[0003] Therefore, in order to solve the above problems and shortcomings, the present invention provides an aerator with a protective structure, including a lower casing with a rotor installed inside, and a mechanical seal seat, a direct connector and a drive cover are respectively provided in sequence along the top center position of the lower casing. The direct connector is an umbrella-shaped frustum structure and is composed of an installation box and a connecting shaft, wherein the connecting shaft is coaxially arranged at the bottom of the installation box and is integrally formed with the installation box, the mechanical seal seat is axially inserted into the bottom of the connecting shaft, and the drive cover is inverted and covered on the top of the installation box; an integrated circuit board is installed close to the top wall inside the drive cover, a frequency conversion communication stick and a junction box are installed at the edge of the installation box, and an exhaust valve is provided at the bottom of the installation box.

[0004] Furthermore, the edge of the drive cover is connected to the installation box by screws, and an installation sealing ring is provided between the inner side of the drive cover screws and the installation box to improve the sealing effect between the drive cover and the installation box.

[0005] Furthermore, a retaining ring is installed at the end of the mechanical seal seat with an interference fit, and the mechanical seal seat is locked and fixed to the installation box by the retaining ring. A wiring harness plug and a motor wire are embedded downward along the top of the mechanical seal seat. The wiring harness plug maintains a sealed connection with the mechanical seal seat through elastic support. The motor wire passes through the wiring harness plug and is connected to the rotor and the junction box at both ends respectively. A copper cap is nested at the end of the mechanical seal seat.

[0006] Furthermore, a sealing ring is nested in the center of the mechanical seal seat to improve the sealing effect between the mechanical seal seat and the connecting shaft.

[0007] Furthermore, the driving cover is stamped from a heat-conducting aluminum plate, which can improve the heat dissipation effect of the integrated circuit board.

[0008] Furthermore, the frequency conversion communication stick and the junction box maintain electrical connection, and both have wiring holes at their bottoms. The wiring holes of the junction box are used to connect the power line and the ground line, and the wiring holes of the frequency conversion communication stick are used to connect the communication line and the communication line docking plug-in.

[0009] Furthermore, the side of the mounting box has three equally spaced connection holes for connecting a float rod.

[0010] Furthermore, a clearance fit is maintained between the mechanical seal seat and the connecting shaft, and the mechanical seal seat is connected to the bottom end of the connecting shaft via a sealing cover, so as to maintain a stable connection of the mechanical seal seat.

[0011] The beneficial effects of the present invention can be reflected in the following aspects after specific analysis: Advantage 1: In this application, a vacuum pump can be connected to the exhaust valve, and then nitrogen can be injected to exhaust the air in the drive cover and the direct connection part, thereby reducing the degree of oxidation of the electronic components, especially the circuit board, by the air. At the same time, the electronic components can effectively dissipate heat through the drive cover, thereby increasing the service life of the electronic components and effectively extending the maintenance period.

[0012] Advantage 2: In this application, the remote start and stop and direction switching of the motor are achieved by writing to the control register. In addition, there is a communication line docking plug-in outside the frequency conversion communication stick, which can use the mobile phone APP to control the operation data of the aerator. In this way, the timed start and control of oxygenation can be achieved through the mobile phone, thereby effectively improving the oxygenation efficiency of a large range of breeding areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall schematic diagram of an aerator with a protective structure according to the present invention; Figure 2 This invention Figure 1 A top view of Figure 3 This invention Figure 1 Side view of Figure 4 This invention Figure 1 Schematic diagram of longitudinal section; Figure 5 This invention Figure 4 A magnified schematic diagram of part A; Figure numerals: drive cover 1, thermal conductive aluminum plate 101, integrated circuit board 102, installation sealing ring 103, lower housing 2, direct connection part 3, installation box 301, connecting shaft 302, connecting hole 303, frequency conversion communication stick 4, junction box 5, mechanical seal seat 6, motor wire 601, copper cap 602, retaining ring 603, wiring harness plug 604, sealing ring 7, exhaust valve 8. DETAILED DESCRIPTION

[0014] The present invention will be described in detail below with reference to the accompanying drawings, clearly and completely describing the technical solutions in the embodiments of the present invention. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention. It should be understood that ordinal numbers and directional descriptions, such as "first," "second," "third," "upper, lower, left, right," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise expressly specified or limited, the terms "connected" and "connect" should be understood in a broad sense, meaning, for example, a fixed connection, a detachable connection, or an electrical connection; and can be directly connected or indirectly connected through an intermediate medium. Therefore, they should not be construed as limiting the present invention.

[0015] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific implementation methods. Figure 1-5 As shown, the present application provides an aerator with a protective structure, including a lower casing 2 with a rotor installed inside, the lower casing 2 is welded as a whole and has a built-in hub rotor, and a mechanical seal seat 6, a direct connector 3 and a drive cover 1 are sequentially provided along the top center position of the lower casing 2. The direct connector 3 is an umbrella-shaped frustum structure and consists of a mounting box 301 and a connecting shaft 302, wherein the connecting shaft 302 is coaxially arranged at the bottom of the mounting box 301 and is integrally formed with the mounting box 301, the mechanical seal seat 6 is axially inserted into the bottom of the connecting shaft 302, and the drive cover 1 is mounted on the top of the mounting box 301 with an inverted cover; An integrated circuit board 102 is installed near the top wall inside the drive cover 1, a frequency conversion communication stick 4 and a junction box 5 are installed on the edge of the installation box 301, and an exhaust valve 8 is provided at the bottom of the installation box 301; the exhaust valve 8 is opened and locked by a sealing bolt, and a vacuum pump is connected to the exhaust valve 8 to first evacuate to a vacuum degree of -0.08MPa, and then fill with 99.9% nitrogen to maintain a slightly positive pressure state, so that the air in the drive cover 1 and the direct connection part 3 is emptied, thereby reducing the degree of oxidation of electronic components, especially circuit boards, by air, thereby increasing the service life of electronic components and effectively extending the maintenance period.

[0016] Please refer to Figure 1-3As shown, the edge of the drive cover 1 is connected to the installation box 301 by stainless steel screws, and an installation sealing ring 103 is provided between the inner side of the screws of the drive cover 1 and the installation box 301 to improve the sealing effect between the drive cover 1 and the installation box 301; the drive cover 1 is stamped by a heat-conducting aluminum plate 101, and the heat-conducting aluminum plate 101 can improve the heat dissipation effect of the integrated circuit board 102.

[0017] Based on the above description, the screws for fixing the drive cover 1 are made of stainless steel, and the installation of the sealing ring 103 can improve the waterproof seal between the drive cover 1 and the installation box 301, and the heat generated by the integrated circuit board 102 can be fully dissipated through the heat-conducting aluminum plate 101.

[0018] Please refer to Figure 4-5 As shown, a retaining ring 603 is installed at the end of the mechanical seal seat 6 with an interference fit, and the mechanical seal seat 6 is locked and fixed with the installation box 301 by the retaining ring 603. A wiring harness plug 604 and a motor wire 601 are embedded downward along the top of the mechanical seal seat 6. The wiring harness plug 604 is elastically supported to maintain a sealed connection with the mechanical seal seat 6. The motor wire 601 passes through the wiring harness plug 604 and is connected to the rotor and the terminal box 5 at both ends respectively. A copper cap 602 is nested at the end of the mechanical seal seat 6; a sealing ring 7 is nested at the center of the mechanical seal seat 6 to improve the sealing effect between the mechanical seal seat 6 and the connecting shaft 302.

[0019] Based on the above description, the mechanical seal seat 6 serves as a carrier for connecting the motor and the control component. An embedded clearance fit is adopted between the mechanical seal seat 6 and the connecting shaft 302, and the mechanical seal seat 6 is connected to the bottom end of the connecting shaft 302 through a sealing cover. The inner side of the sealing cover also has a rubber gasket, which has a waterproof effect. At the same time, a sealing ring 7 is nested in the center position of the mechanical seal seat 6 to further prevent water vapor from entering the drive cover 1. The elastic material of the wiring harness plug 604 has good sealing performance and can only ensure that the motor wire 601 passes through. At the same time, the end of the wiring harness plug 604 is sealed by the copper cap 602 and is kept stable by the retaining ring 603. The motor wire 601 (three-phase wire) passes through the wiring harness plug 604 and the mechanical seal seat 1 to connect to the rotor, and the other end of the motor wire 601 is connected to the junction box 5 for connecting to an external power supply.

[0020] like Figure 1-2 As shown, the frequency conversion communication stick 4 and the junction box 5 maintain electrical connection, and both have wiring holes at the bottom. The wiring holes of the junction box 5 are used to connect the power line and the ground line, and the wiring holes of the frequency conversion communication stick 4 are used to connect the communication line and the communication line docking plug-in. The casings of the frequency conversion communication stick 4 and the junction box 5 are also designed in this way, and the wiring harness connector is an IP67 grade waterproof connector design, which is convenient for installation and wiring.

[0021] It should be noted that the control chip of the frequency conversion communication stick 4 is located on the integrated circuit board 102, and the frequency converter inside the frequency conversion communication stick 4 is connected to the junction box 5 through a wire. The core principle of the frequency conversion communication stick 4 to control the motor is to adjust the output frequency and voltage of the frequency converter through a digital communication protocol, thereby achieving precise control of the motor speed, and realizing remote start and stop and direction switching of the motor by writing into the control register; in addition, in the present application, there is also a communication line docking plug-in outside the frequency conversion communication stick 4, which can use the mobile phone APP to connect to the Internet to control the operation data of the aerator. In this way, the mobile phone can realize timed start and control of oxygenation, thereby effectively improving the oxygenation efficiency of a large range of breeding areas.

[0022] The side of the mounting box 301 has three equidistantly distributed connection holes 303 for connecting the float rod. The connection holes 303 are used to fix the bracket. A float is configured at each of the three ends of the bracket to maintain balance, and the power cord can be guided through the bracket to prevent entanglement.

[0023] In summary, the oxygenator with a protective structure of the present invention can improve the heat dissipation of electronic components and reduce the oxidation of electronic components by air, thereby increasing the service life of electronic components, and can realize timed start and control of oxygenation, ensuring the oxygenation efficiency in a large range of breeding areas.

[0024] The above are merely embodiments of the present invention, and common knowledge such as the known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. An aerator with a protective structure, comprising a lower housing (2) in which a rotor is installed, characterized in that: A mechanical seal seat (6), a direct connection member (3) and a drive cover (1) are sequentially arranged upward along the top center position of the lower housing (2), the direct connection member (3) is an umbrella-shaped frustum structure and is composed of a mounting box (301) and a connecting shaft (302), wherein the connecting shaft (302) is coaxially arranged at the bottom of the mounting box (301) and is integrally formed with the mounting box (301), the mechanical seal seat (6) is axially inserted into the bottom of the connecting shaft (302), and the drive cover (1) is mounted on the top of the mounting box (301) by being buckled and covered; an integrated circuit board (102) is mounted inside the drive cover (1) close to the top wall, a frequency conversion communication stick (4) and a junction box (5) are mounted on the edge of the mounting box (301), and an exhaust valve (8) is provided at the bottom of the mounting box (301).

2. The aerator with a protective structure according to claim 1, characterized in that: The edge of the drive cover (1) is connected to the installation box (301) by screws, and a mounting seal ring (103) is provided between the inner side of the screws of the drive cover (1) and the installation box (301).

3. The aerator with a protective structure according to claim 1, characterized in that: The end of the mechanical seal seat (6) is installed with a retaining ring (603) in an interference fit, and the mechanical seal seat (6) is locked and fixed with the installation box (301) through the retaining ring (603). A wiring harness plug (604) and a motor wire (601) are embedded downwardly along the top of the mechanical seal seat (6). The wiring harness plug (604) is kept in a sealed connection with the mechanical seal seat (6) through elastic support. The motor wire (601) passes through the wiring harness plug (604) and is connected to the rotor and the terminal box (5) at both ends. A copper cap (602) is embedded at the end of the mechanical seal seat (6).

4. The aerator with a protective structure according to claim 1, characterized in that: A sealing ring (7) is nested in the center of the mechanical seal seat (6).

5. The aerator with a protective structure according to claim 1, characterized in that: The driving cover (1) is formed by stamping a heat-conducting aluminum plate (101).

6. The aerator with a protective structure according to claim 1, characterized in that: The frequency conversion communication stick (4) and the junction box (5) are electrically connected.

7. The aerator with a protective structure according to claim 1, characterized in that: The side surface of the installation box (301) has three equally spaced connection holes (303).

8. The aerator with a protective structure according to claim 1, characterized in that: The mechanical seal seat (6) maintains a clearance fit with the connecting shaft (302) and is connected to the bottom end of the connecting shaft (302) via a sealing cover.

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