Submerged pusher for sewage treatment tank

Abstract

The utility model discloses a sewage treatment technical field especially a sewage treatment tank submersible push flow ware. A sewage treatment tank submersible push flow ware, including the pool bottom of treatment pool and the foundation of being located the outside along of treatment pool, the surface of pool bottom of treatment pool and the side of foundation have the support of connection, install the push flow motor of up and down removal on the support, install a plurality of even setting push flow vane on the output shaft of push flow motor. Through the support push flow motor and allow push flow motor to move up and down to adapt the requirement of different liquid level, sludge deposition thickness and different processing stage in sewage treatment tank, again by push flow motor drive push flow vane rotation, realize the mixing and push flow of in -pool sewage, avoid sludge deposition, guarantee sewage mixing even, promote sewage treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a submersible jet mixer for wastewater treatment ponds. Background Technology

[0002] In the wastewater treatment industry, submersible jet mixers are core equipment for mixing, stirring, and propulsion within wastewater treatment tanks. Their operational stability, ease of maintenance, and propulsion efficiency directly affect the overall treatment effect and operating costs of the wastewater treatment system. Currently, mainstream submersible jet mixers for wastewater treatment tanks typically employ a fixed installation method, where the jet motor and propulsion blades are directly fixed to a designated position on the bottom or wall of the treatment tank using a bracket. This type of structure has gradually revealed several technical shortcomings in practical applications, making it difficult to meet the high-efficiency treatment requirements under complex operating conditions.

[0003] 1. Insufficient adjustment flexibility: Existing submersible jet mixers have a fixed installation height, which cannot adapt to changes in liquid level, sludge deposition thickness, and the needs of different treatment stages such as anaerobic / aerobic processes. When the liquid level decreases, the jet mixer blades are easily partially exposed above the water surface, reducing the effective range and creating dead zones for sludge deposition; when the liquid level increases or when treating high-concentration wastewater requiring strong stirring, it is difficult to increase the jet mixer force, resulting in uneven wastewater mixing and affecting the efficiency of the biochemical reaction.

[0004] 2. Inconvenient maintenance and repair: The propeller motor is immersed in sewage for a long time, which makes it susceptible to corrosion and impurities, and requires regular maintenance. However, the propeller and the support are mostly rigidly connected, and disassembly requires manual entry into the pool or the use of large hoisting equipment, which increases the labor intensity and safety risks of personnel, and also requires the sewage treatment system to be shut down, resulting in high maintenance costs and low efficiency.

[0005] 3. Poor operational stability: The lack of a stable limiting support structure between the support frame and the propulsion motor makes the equipment prone to lateral displacement or longitudinal swaying due to water flow impact and blade vibration during long-term high-frequency operation. This may cause the propulsion blades to collide and be damaged with the pool wall / bottom, and will also accelerate fatigue at the connection between the motor and the support frame, shorten the equipment life, increase the frequency of failures, and reduce the continuous operation stability of the system.

[0006] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a submersible jet generator for sewage treatment ponds, making it more valuable for industrial applications. Utility Model Content

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a submersible jet mixer for sewage treatment ponds.

[0008] This utility model discloses a submersible jet mixer for a sewage treatment tank, comprising a tank bottom and a foundation located at the outer edge of the tank. The tank bottom surface and the side of the foundation are connected to a support frame. A jet mixer motor that can move up and down is installed on the support frame. Multiple jet mixer blades are installed on the output shaft of the jet mixer motor.

[0009] This submersible jet mixer for wastewater treatment tanks includes a foundation for the tank bottom and the outer edge of the tank. A support frame is connected to the tank bottom surface and the side of the foundation. A jet mixer motor that can move up and down is mounted on the support frame. Multiple evenly distributed jet mixer blades are installed on the output shaft of the jet mixer motor. The support frame supports the jet mixer motor and allows it to move up and down to adapt to different liquid levels, sludge deposition thicknesses, and different treatment stages in the wastewater treatment tank. The jet mixer motor drives the jet mixer blades to rotate, thereby agitating and distributing the wastewater in the tank, preventing sludge deposition, ensuring uniform mixing of wastewater, and improving the wastewater treatment effect.

[0010] Furthermore, the propulsion motor is fixed to the sliding sleeve, which is fitted onto the vertical rod of the bracket.

[0011] The propulsion motor is fixedly mounted on the sliding sleeve, which is fitted onto the outside of the vertical rod structure of the support. The sliding sleeve and the vertical rod of the support provide a stable mounting carrier for the propulsion motor. At the same time, the sliding sleeve slides up and down along the vertical rod of the support, allowing the propulsion motor to move and adjust flexibly in the vertical direction. This adapts to the different liquid levels, sludge deposition thicknesses, and treatment stages in the sewage treatment tank, ensuring the adaptability and effectiveness of the propulsion operation.

[0012] Furthermore, the cross-section of the support is rectangular.

[0013] The support frame adopts a rectangular cross-section design. Compared with other cross-sectional shapes such as circles, the rectangular cross-section can provide a more stable limiting effect for the sliding sleeve fitted on the vertical rod of the support frame. This effectively prevents the sliding sleeve from causing the propulsion motor to rotate and deviate during the up and down movement. At the same time, it enhances the structural strength and load-bearing capacity of the support frame itself, ensuring stable support for the propulsion motor and guaranteeing the stability and safety of the equipment during long-term operation.

[0014] Furthermore, a hoisting support is installed on the foundation, and a hand-cranked hoist is installed on the hoisting support. A hoisting rope is installed on the winch in the middle of the hand-cranked hoist, and the hoisting rope is connected to the lifting lug above the thrust motor.

[0015] A hoisting support frame is installed on the foundation, and a hand-cranked hoist is mounted on the hoisting support frame. A hoisting rope is connected to the winch in the middle of the hand-cranked hoist, and the hoisting rope is connected to the corresponding lifting lug above the propulsion motor. The hoisting support frame provides stable installation support for the hand-cranked hoist. Workers can drive the winch to rotate by cranking the hand-cranked hoist, thereby controlling the raising and lowering of the hoisting rope. The connection between the hoisting rope and the lifting lug drives the propulsion motor to move up and down. This not only allows for convenient adjustment of the propulsion motor's height to adapt to different working conditions in the pool, but also allows the propulsion motor to be easily lifted during equipment maintenance and repair without the need for manual entry into the pool or the use of large hoisting equipment, reducing operational difficulty and safety risks, and improving maintenance efficiency.

[0016] Furthermore, the top of the hoisting support has a horizontal plate extending towards the water tank, and both ends of the horizontal plate have grooves for installing guide wheels, which are movably installed in the grooves via shafts.

[0017] The top of the hoisting support has a horizontal plate extending towards the water tank. Slots for mounting guide wheels are cut at both ends of the horizontal plate. The guide wheels are movably mounted in these slots via shafts. The extension of the horizontal plate towards the water tank allows the guide wheels to be closer to the lifting lugs of the propulsion motor. The movably mounted guide wheels guide the hoisting rope connecting the lifting lugs to the hand-cranked hoist, reducing frictional wear between the hoisting rope and the edge of the horizontal plate during operation. This also ensures stable force on the hoisting rope, making the propulsion motor move more smoothly up and down. It prevents the propulsion motor from swaying or tilting due to hoisting rope deviation, thus improving the safety and smoothness of equipment adjustment and maintenance operations.

[0018] Furthermore, a support plate is fixed to the surface of the bracket, which is used to support the propulsion motor.

[0019] A support plate is fixedly installed on the surface of the bracket, which corresponds to the support of the propulsion motor. It provides additional bottom support for the propulsion motor. After the propulsion motor moves to the target height along the vertical rod of the bracket via the sliding sleeve, the support plate can share the weight of the propulsion motor, reduce the load-bearing pressure on the sliding sleeve and the vertical rod of the bracket, and prevent the sliding sleeve from deforming or being damaged due to excessive force during long-term operation. At the same time, it prevents the propulsion motor from accidentally falling off and causing damage to the equipment or the pool, further ensuring the stability and safety of the propulsion motor installation and operation.

[0020] Furthermore, there are first limiting plates extending upward on both sides of the pallet, and the first limiting plates are located on both sides of the support block below the push motor.

[0021] The support plate has upward-extending first limiting plates on both sides, which are located on both sides of the support block below the propulsion motor. The upward-extending first limiting plates on both sides of the support plate form a lateral limit on the support block below the propulsion motor, effectively preventing the propulsion motor from shifting laterally due to water flow impact and blade rotation vibration during operation. This avoids the propulsion motor driving the propulsion blades to collide with the pool wall or support, and further enhances the installation stability of the propulsion motor on the support plate, ensuring the safety and reliability of the equipment during long-term operation.

[0022] Furthermore, a second limiting plate extending downward is fixed to the front end of the propulsion motor, and the second limiting plate is locked on both sides of the front end of the tray.

[0023] A second limiting plate extending downwards is fixed to the front end of the propulsion motor, and the second limiting plate is correspondingly locked on both sides of the front end of the support plate. Through the locking structure between the second limiting plate and the front end of the support plate, the propulsion motor is double-limited in both the longitudinal and lateral directions. This not only prevents the propulsion motor from shifting forward or backward due to water flow impact and blade rotation vibration during operation, but also helps to limit its lateral displacement, further enhancing the stability of the propulsion motor installation on the support plate. This avoids damage to the propulsion blades and pool components due to equipment displacement, ensuring the stability and safety of the propulsion operation.

[0024] By means of the above-described solution, the present invention has at least the following advantages: Enhancing the flexibility of flow adjustment to adapt to diverse operating conditions: The device, through the sleeve and support column fitting, combined with the linkage structure of the hand-cranked lifting machine, lifting rope and lifting lug, realizes flexible adjustment of the flow motor height. It can adjust the immersion depth of the flow blades according to the changes in liquid level and sludge deposition thickness in the sewage treatment tank, avoiding the problems of blade exposure when the liquid level drops and insufficient stirring force when the liquid level rises. It can also adapt to the flow requirements of different treatment stages such as anaerobic and aerobic, effectively eliminating sludge deposition dead corners, ensuring uniform sewage mixing, and significantly improving the efficiency of biochemical reaction and the overall sewage treatment effect.

[0025] Reduced maintenance and repair difficulty and decreased operating costs: The hoisting support on the foundation, along with the hand-cranked lifting machine and guide wheels, form a convenient lifting system. Workers do not need to enter the sewage tank or use large hoisting equipment; they can easily complete equipment inspection and maintenance by simply cranking the hand-cranked lifting machine to control the raising and lowering of the propulsion motor. This not only reduces the labor intensity and safety risks for personnel but also avoids process interruptions in the sewage treatment system due to maintenance downtime, significantly shortening maintenance time, reducing maintenance costs, and improving the cost-effectiveness of equipment operation.

[0026] Enhancing equipment operational stability and extending overall service life: The rectangular cross-section support prevents the sliding sleeve from causing the propeller motor to rotate and deviate, providing stable support for the equipment; the support plate can share the weight of the propeller motor, reducing the load-bearing pressure on the sliding sleeve and support, and preventing components from deforming and being damaged due to excessive force; the first and second limiting plates form a double limiting structure, respectively blocking the lateral deviation and forward and backward movement of the propeller motor, preventing the propeller blades from colliding with the tank wall and bottom. Multiple stabilization designs work together to reduce vibration losses during equipment operation, lower the frequency of failures, significantly extend the overall service life of the propeller, and ensure the long-term continuous and stable operation of the wastewater treatment system.

[0027] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the utility model Figure 1 Enlarged view of a part Figure 1 ; Figure 3 This is the utility model Figure 1 Enlarged view of a part Figure 2 ; In the diagram: 1. Bottom of the treatment tank; 2. Foundation; 3. Support frame; 4. Propeller motor; 5. Propeller blades; 6. Sliding sleeve; 7. Lifting support frame; 8. Hand-cranked hoist; 9. Lifting rope; 10. Lifting lug; 11. Horizontal plate; 12. Guide wheel; 13. Support plate; 14. First limit plate; 15. Second limit plate. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0031] See Figure 1First, a support 3, connecting the bottom surface of the treatment tank 1 to the side of the foundation 2 along the outer edge of the treatment tank, provides a stable installation foundation for the overall propulsion structure. Then, a vertically movable propulsion motor 4 is assembled on the support 3. Workers can adjust the vertical position of the propulsion motor 4 on the support 3 according to the actual liquid level in the wastewater treatment tank, the thickness of the sludge deposit, and the propulsion requirements of different treatment stages such as anaerobic and aerobic stages. Once the propulsion motor 4 has moved to the target height, it is started. Its output shaft drives multiple evenly arranged propulsion blades 5 to rotate at high speed. The rotating propulsion blades 5 will generate... The mixing and propulsion action creates a circulating flow of wastewater within the tank, ensuring thorough mixing of wastewater and chemicals and preventing sludge from settling at the bottom. The design of the support frame 3, which connects the bottom 1 of the treatment tank to the foundation 2, ensures stable equipment installation and prevents overall shaking during operation. The vertically movable propulsion motor 4 can flexibly adapt to different working conditions, solving the problem that traditional fixed-installation propulsion devices cannot be adjusted according to the tank environment. Multiple evenly arranged propulsion blades 5 can expand the propulsion and mixing range, improve the uniformity of wastewater mixing, reduce dead zones for sludge deposition, and thus ensure a stable and efficient wastewater treatment process, improving the final treated water quality.

[0032] See Figure 3 First, securely fix the pusher motor 4 onto the sliding sleeve 6. Then, fit the sliding sleeve 6 onto the outside of the vertical rod structure of the support 3, so that the pusher motor 4 is connected to the support 3 through the cooperation of the sliding sleeve 6 and the vertical rod of the support 3. When it is necessary to adjust the height of the pusher motor 4 according to the changes in the liquid level in the sewage treatment tank, the thickness of the sludge deposition, or different treatment stages, the operator can drive the sliding sleeve 6 to slide up and down along the vertical rod of the support 3 by external force. During the sliding process, the pusher motor 4 fixed on it will move synchronously until the pusher motor 4 reaches the target height suitable for the current working conditions. Then, keep the sliding sleeve 6 in position to allow the pusher motor 4 to move. Stable operation drives the propulsion blades 5 to complete the sewage mixing and propulsion operation; the sliding sleeve 6 not only provides a stable mounting carrier for the propulsion motor 4, ensuring that the propulsion motor 4 is not easy to fall off or deviate during operation, but also makes the height adjustment of the propulsion motor 4 more convenient and smooth through the sliding cooperation with the vertical rod of the bracket 3, avoiding the disadvantages of the traditional fixed installation method that cannot flexibly adjust the height, and can quickly adapt to the environmental requirements of different pools. At the same time, the sleeve structure between the sliding sleeve 6 and the vertical rod of the bracket 3 can also reduce the vibration transmission of the propulsion motor 4 during operation, reduce component wear, ensure long-term stable operation of the equipment, and improve the adaptability and reliability of the propulsion operation.

[0033] The support frame 3 adopts a rectangular cross-section design. During equipment assembly and operation, this rectangular cross-section provides a precise assembly reference for the sliding sleeve 6. When the sliding sleeve 6 is fitted onto the vertical rod of the support frame 3, the rectangular cross-section can form a close fit with the inner side of the sliding sleeve 6, preventing the sliding sleeve 6 from rotating circumferentially on the vertical rod of the support frame 3. This ensures that the sliding sleeve 6 maintains a stable direction when driving the propulsion motor 4 up and down. At the same time, compared with other cross-sections such as circles, the rectangular cross-section can increase the contact area between the vertical rod of the support frame 3 and the sliding sleeve 6, making the support of the propulsion motor 4 more balanced. When the propulsion motor 4 drives the propulsion blades 5 to rotate and generate lateral force, the rectangular cross-section of the support frame 3 can better withstand the force. This force reduces the deformation of the support 3. On the one hand, it limits the rotational offset of the sliding sleeve 6, ensuring the accuracy of the height adjustment of the propulsion motor 4 and preventing the position deviation of the propulsion blades 5 due to the rotation of the sliding sleeve 6. This prevents the propulsion blades 5 from colliding and being damaged with the pool wall and bottom. On the other hand, the rectangular cross-section increases the structural strength and load-bearing capacity of the support 3 itself, enabling it to stably support the weight of the propulsion motor 4 for a long time, reducing fatigue damage caused by long-term stress on the support 3, extending the service life of the support 3, and ensuring that the propulsion motor 4 remains stable during high-frequency operation, reducing the frequency of equipment failure, ensuring the continuous and stable operation of propulsion and mixing in the sewage treatment tank, and improving the overall sewage treatment efficiency.

[0034] See Figures 1-3During the operation, adjustment, and maintenance of the submersible jet pump for this wastewater treatment tank, the hoisting support 7 is first stably installed on the foundation 2 on the outer edge of the treatment tank to provide stable support for the subsequent lifting structure. Then, the hand-cranked hoist 8 is assembled on the hoisting support 7, ensuring that the hand-cranked hoist 8 is fixed in position and evenly stressed. Subsequently, a lifting rope 9 is installed on the winch in the middle of the hand-cranked hoist 8, and the other end of the lifting rope 9 is tightly connected to the lifting lug 10 above the jet pump motor 4. When it is necessary to adjust the height of the jet pump motor 4 to adapt to changes in the tank liquid level, sludge deposition thickness, or different treatment stages, the operator drives the winch to rotate by cranking the handle of the hand-cranked hoist 8. When the winch rotates forward, it winds up the lifting rope 9, which drives the jet pump motor 4 upward along the vertical rod of the support 3 via the lifting lug 10. When the winch rotates in reverse, it releases the lifting rope 9, and the jet pump motor 4 moves upward under its own weight. Move the vertical rod of the lower support 3 downwards until the target height is reached; when the propulsion motor 4 needs maintenance, the propulsion motor 4 is also lifted to a safe position outside the pool by cranking the hand-cranked lifting machine 8. After maintenance is completed, it is lowered back to its original position. The stable connection between the lifting support 7 and the foundation 2 ensures that the lifting process is safe and reliable, and avoids the equipment falling due to unstable support during lifting. The hand-cranked lifting machine 8 is easy to operate and does not require large lifting equipment or manual entry into the pool, which reduces the labor intensity and safety risks of the staff. The cooperation between the lifting rope 9 and the lifting lug 10 can accurately transmit the lifting force, so that the propulsion motor 4 is lifted and lowered smoothly, avoiding damage to the parts due to swaying. At the same time, this structure realizes convenient adjustment of the height of the propulsion motor 4 and quick maintenance, reducing the downtime of the sewage treatment system caused by equipment adjustment or maintenance, improving the overall operating efficiency and reducing maintenance costs.

[0035] See Figure 2The horizontal plate 11 extending from the top of the hoisting support 7 towards the water tank first provides a mounting base for the guide wheel 12 close to the propulsion motor 4. Workers first install the guide wheel 12 movably in the pre-set grooves at both ends of the horizontal plate 11 via a shaft, ensuring the guide wheel 12 can rotate flexibly. Then, the hoisting rope 9, connecting the winch of the hand-cranked hoist 8 to the lifting lug 10 of the propulsion motor 4, is wrapped around the guide wheel 12. When the hand-cranked hoist 8 drives the winch to raise or lower the hoisting rope 9, the hoisting rope 9 slides along the wheel surface of the guide wheel 12, and the guide wheel 12 rotates synchronously with the movement of the hoisting rope 9. Simultaneously, the extension structure of the horizontal plate 11 towards the water tank allows the guide wheel 12 to be closer to the lifting lug 10 of the propulsion motor 4, ensuring the hoisting rope 9 always maintains a reasonable position. At the force angle, the movable guide wheel 12 converts the sliding friction between the lifting rope 9 and the horizontal plate 11 into rolling friction, which greatly reduces the wear of the lifting rope 9 during the lifting and lowering process and extends the service life of the lifting rope 9. The extension design of the horizontal plate 11 combined with the guiding effect of the guide wheel 12 can prevent the lifting rope 9 from deviating or rubbing against the edge of the horizontal plate 11, ensuring the stability of the force direction of the lifting rope 9. This, in turn, keeps the propulsion motor 4 stable during the lifting and lowering process, preventing the propulsion motor 4 from colliding and being damaged by the support 3 or the pool wall due to shaking. At the same time, it also reduces the operating resistance of the hand-cranked lifting machine 8, making the height adjustment and maintenance of the propulsion motor 4 smoother and safer, and ensuring the reliable operation of the overall lifting system.

[0036] See Figure 3 The support plate 13 is securely fixed to the surface of the bracket 3, ensuring that the position of the support plate 13 matches the installation height requirement of the push motor 4. After the push motor 4 is adjusted to the target height along the vertical rod of the bracket 3 using the sliding sleeve 6, the bottom of the push motor 4 will naturally fall onto the support plate 13. At this time, the support plate 13 bears part of the weight of the push motor 4, and together with the sliding sleeve 6, provides support for the push motor 4. When the push motor 4 starts and drives the push blades 5 to rotate for sewage mixing and pushing operations, the support plate 13 continuously provides stable support for the push motor 4, preventing the connection between the push motor 4 and the sliding sleeve 6 from being overloaded due to long-term suspension or vibration. 3 can effectively share the weight of the pusher motor 4, reduce the load-bearing pressure on the sliding sleeve 6 and the vertical rod of the support 3, prevent the sliding sleeve 6 from deforming, jamming or even being damaged due to long-term excessive force, and extend the service life of the sliding sleeve 6 and the support 3. At the same time, the support plate 13 provides additional bottom support for the pusher motor 4, which can prevent the pusher motor 4 from accidentally falling off due to the failure of the sliding sleeve 6, reduce the risk of equipment damage and tank damage, and also enhance the stability of the pusher motor 4 during operation, reduce the noise and vibration caused by equipment shaking, ensure that the pusher blade 5 always maintains a stable pusher trajectory, improve the uniformity of sewage mixing and pusher, and ensure stable and reliable sewage treatment effect.

[0037] The tray 13 is fixed to the surface of the bracket 3. The first limiting plates 14 extending upward on both sides of the tray 13 will naturally be positioned on both sides of the support block below the pusher motor 4. When the pusher motor 4 is adjusted to the target height along the vertical rod of the bracket 3 via the sliding sleeve 6 and placed on the tray 13, the first limiting plates 14 will form a close or near-close correspondence with the side of the support block below the pusher motor 4. During the process of the pusher motor 4 starting and driving the pusher blades 5 to rotate and stir the sewage, the lateral force generated by the water flow impact and the blade rotation may cause the pusher motor 4 to tend to shift laterally. At this time, the first limiting plates 14 on both sides of the tray 13 will block the support block below the pusher motor 4, restricting the pusher motor 4 from moving to both sides. The first limiting plate 14 can precisely limit the lateral displacement of the pusher motor 4, preventing the pusher motor 4 from causing the pusher blades 5 to collide with the treatment tank wall or support 3 due to lateral deviation. This reduces the risk of wear on the pusher blades 5 and damage to the tank body. At the same time, by fixing the lateral position of the pusher motor 4, it ensures that the pusher blades 5 always push stably within the preset range, avoiding uneven push range and dead corners of sludge deposition caused by motor deviation. It can also enhance the installation stability of the pusher motor 4 on the support plate 13, reduce the vibration amplitude during equipment operation, reduce fatigue wear at component connection points, extend the service life of the pusher motor 4 and related components, and ensure the continuity and stability of the pusher operation during sewage treatment.

[0038] The second limiting plate 15 is fixed to the front end of the pusher motor 4 and ensured to extend downwards. When the pusher motor 4 is adjusted to the target height along the vertical rod of the bracket 3 and placed on the support plate 13 via the sliding sleeve 6, the second limiting plate 15 at the front end of the pusher motor 4 will precisely engage with both sides of the front end of the support plate 13, forming a tight engagement. When the pusher motor 4 starts and drives the pusher blades 5 to rotate for sewage mixing and pushing operations, the reaction force of the water flow on the pusher blades 5 and the vibration generated by the motor operation may cause the pusher motor 4 to tend to shift forward or backward or laterally. At this time, the second limiting plate 15 engaged with both sides of the front end of the support plate 13 will simultaneously play a limiting role, on the one hand preventing the pusher motor 4 from moving towards the front of the water tank or away from the rear of the water tank, and on the other hand assisting... The second limiting plate 15, by engaging with the front end of the support plate 13, provides dual longitudinal and lateral limiting protection for the pusher motor 4, effectively preventing the pusher motor 4 from shifting due to external forces. This prevents the pusher blades 5 from colliding and being damaged by the treatment tank wall, bottom, or support 3. It also further enhances the stability of the pusher motor 4 during operation, reduces vibration damage to the connection between the motor and the sliding sleeve 6 and support 3, extends the overall service life of the equipment, and ensures that the pusher blades 5 always maintain a stable pusher trajectory and range, avoiding uneven sewage mixing and sludge deposition dead zones caused by motor displacement, thus ensuring stable and reliable sewage treatment results.

[0039] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A submersible jet mixer for a wastewater treatment tank, comprising the bottom of the treatment tank (1) and a foundation (2) located at the outer edge of the treatment tank, characterized in that: The bottom (1) surface of the treatment tank and the side of the foundation (2) are connected to the support (3). The support (3) is equipped with a pusher motor (4) that can move up and down. Multiple pusher blades (5) are installed on the output shaft of the pusher motor (4).

2. The submersible jet mixer for a wastewater treatment tank according to claim 1, characterized in that: The propulsion motor (4) is fixed on the sliding sleeve (6), and the sliding sleeve (6) is fitted onto the vertical rod of the bracket (3).

3. The submersible jet mixer for a wastewater treatment tank according to claim 2, characterized in that: The cross-section of the support (3) is rectangular.

4. A submersible jet mixer for a wastewater treatment tank according to any one of claims 1-3, characterized in that: A hoisting support (7) is installed on the foundation (2), and a hand-cranked hoist (8) is installed on the hoisting support (7). A hoisting rope (9) is installed on the winch in the middle of the hand-cranked hoist (8), and the hoisting rope (9) is connected to the lifting lug (10) above the push motor (4).

5. A submersible jet mixer for a wastewater treatment tank according to claim 4, characterized in that: The top of the hoisting support (7) has a horizontal plate (11) extending toward the water tank. Both ends of the horizontal plate (11) have grooves for installing guide wheels (12). The guide wheels (12) are movably installed in the grooves via shafts.

6. A submersible jet mixer for a wastewater treatment tank according to claim 5, characterized in that: The support (3) has a tray (13) fixed on its surface, which is used to support the push motor (4).

7. A submersible jet mixer for a wastewater treatment tank according to claim 6, characterized in that: The pallet (13) has an upwardly extending first limiting plate (14) on both sides, which is located on both sides of the support block below the push motor (4).

8. A submersible jet mixer for a wastewater treatment tank according to claim 6 or 7, characterized in that: The front end of the push motor (4) is fixed with a downwardly extending second limiting plate (15), which is locked on both sides of the front end of the tray (13).

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