Sewage conveying device of urban sewage treatment tank

Abstract

The utility model relates to the field of urban sewage treatment, and discloses a sewage conveying device of an urban sewage treatment pond, which comprises a shell, a water inlet pipe is fixedly connected to the right side of the shell, a water outlet pipe is fixedly connected to the left side of the shell, and a driving mechanism is arranged on the back of the shell and comprises a stepping motor. The stepping motor is fixedly installed on the back face of the shell, a rotating column is fixedly connected to the front side of an output shaft of the stepping motor, an installation mechanism is arranged in the shell and comprises an installation column and a centering rod, and the installation column penetrates through the inner wall of the shell and is rotationally installed on the inner wall of the shell. According to the utility model, through the arrangement of the control mechanism, when sundries adhered to the surface of the disturbance stirrer need to be cleaned, the disturbance stirrer can be conveniently and quickly taken down, disassembled and cleaned by pulling the control rod and pulling the centering rod away, so that the convenience of operation and the convenience of maintenance are improved.

Description

Technical Field

[0001] The utility model relates to the field of urban sewage treatment, in particular to a sewage conveying device for an urban sewage treatment tank. Background Technique

[0002] After the sewage is treated in the biochemical sewage treatment tank of the sewage treatment plant, it needs to be conveyed to the sedimentation tank. At present, the water outlet of the biochemical sewage treatment tank is directly connected to the sedimentation tank through a pipeline, and some gases will be brought into the pipeline when the water flow in the biochemical sewage treatment tank enters the pipeline. These gases will form bubbles after being released in the sedimentation tank, resulting in sludge floating. The sludge flotation will interfere with the solid-liquid separation process in the sedimentation tank and affect the sedimentation effect.

[0003] After retrieval, the Chinese patent publication number: CN214004372U discloses a sewage conveying device for a sewage treatment tank, including a sewage treatment tank and a sedimentation tank connected by a conveying pipe. A control valve is installed on the conveying pipe at the front and rear ends of the conveying pump. A buffer tank is arranged at the rear end of the conveying pump of the conveying pipe. A rotating shaft is rotatably supported on the inner wall of the buffer tank. A plurality of rotating disks are installed on the rotating shaft in the buffer tank, and a plurality of disturbing rods are fixed on both sides of the rotating disk.

[0004] This patent can effectively overflow the gas in the sewage in the buffer tank by setting a rotating disk that can disturb the gas overflow in the buffer tank, effectively reducing the flotation phenomenon in the sedimentation tank and improving the sedimentation effect of the sedimentation tank. However, during the sewage treatment process, impurities in the sewage will adsorb on the surface of the stirring rod and need to be cleaned regularly. The internal space of the buffer tank is narrow, making it inconvenient to clean the stirring rod, increasing the cleaning difficulty, and thus reducing the work efficiency. Therefore, a sewage conveying device for an urban sewage treatment tank is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a sewage conveying device for an urban sewage treatment tank, aiming to improve the problem of "inconvenient cleaning of the stirring rod" in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A sewage conveying device for an urban sewage treatment tank, including a housing, a water inlet pipe is fixedly connected to the right side of the housing, a water outlet pipe is fixedly connected to the left side of the housing, a driving mechanism is arranged on the back of the housing, the driving mechanism includes a stepping motor, the stepping motor is fixedly installed on the back of the housing, a rotating column is fixedly connected to the front side of the output shaft of the stepping motor, an installation mechanism is arranged inside the housing, the installation mechanism includes an installation column and a centering rod, the installation column penetrates and is rotatably installed on the inner wall of the housing, slots are arranged inside both the installation column and the rotating column, the centering rod is inserted into the inner wall of the slot, a control mechanism is arranged inside the centering rod, the control mechanism includes a control rod, a pull rope, a limiting rod, a spring, a limiting groove and a limiting ring, a disturbance mechanism is arranged outside the centering rod, and the disturbance mechanism includes a disturbance stirrer.

[0007] As a further description of the above technical solution:

[0008] The rotating column penetrates and is rotatably installed on the inner wall of the housing, and sealing rings are fixedly connected to the sides of the rotating column and the installation column close to each other.

[0009] As a further description of the above technical solution:

[0010] The control rod is slidably installed on the inner wall of the centering rod, one end of the pull rope is fixedly connected to the rear side of the control rod, the other end of the pull rope is fixedly connected to the surface of the limiting rod, and the limiting rod is slidably installed on the inner wall of the centering rod.

[0011] As a further description of the above technical solution:

[0012] The limiting rod is elastically connected to the inner wall of the centering rod through the spring, the limiting groove is opened on the inner wall of the slot, the limiting rod is inserted into the inner wall of the limiting groove, the number of the limiting rods is set to be multiple, and multiple limiting rods are arranged at equal angular intervals in a ring inside the centering rod.

[0013] As a further description of the above technical solution:

[0014] The limiting ring is fixedly installed on the inner wall of the centering rod, and the pull rope passes through the inside of the limiting ring.

[0015] As a further description of the above technical solution:

[0016] The disturbance stirrer is sleeved outside the centering rod, and the front and rear sides of the disturbance stirrer are in contact with the sealing ring.

[0017] As a further description of the above technical solution:

[0018] A key pattern is fixedly connected to the inner wall of the perturbation stirrer, and a keyway is formed on the circumferential surface of the centering rod.

[0019] As a further description of the above technical solution:

[0020] A top cover is arranged on the top of the outer shell, and the top cover is fixedly connected to the outer shell through fastening bolts.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a control mechanism, when it is necessary to clean the sundries adhered to the surface of the perturbation stirrer, the perturbation stirrer can be conveniently and quickly removed and cleaned by pulling the control rod and pulling out the centering rod, which improves the convenience of operation and the simplicity of maintenance.

[0023] 2. In the utility model, when a plurality of limiting rods are inserted into the limiting grooves, the centering rod rotates along with the rotating column. Through the cooperation of the keyway and the key pattern, the perturbation stirrer rotates along with the centering rod, so that the perturbation stirrer rotates smoothly. And sealing rings are arranged at both ends of the perturbation stirrer to improve the water tightness and overflow the bubbles in the sewage, ensuring the sewage treatment effect. Description of the Drawings

[0024] Figure 1 is a three-dimensional structural schematic diagram of the whole in the utility model;

[0025] Figure 2 is a three-dimensional split structural schematic diagram of the whole in the utility model;

[0026] Figure 3 is a three-dimensional split structural sectional schematic diagram of the outer shell, the driving mechanism, the mounting mechanism, and the perturbation mechanism in the utility model;

[0027] Figure 4 is a three-dimensional split structural schematic diagram of the driving mechanism and the mounting mechanism in the utility model;

[0028] Figure 5 is a three-dimensional structural sectional schematic diagram of the control mechanism in the utility model;

[0029] Figure 6 is a three-dimensional split structural sectional schematic diagram of the rotating column, the mounting column, and the sealing ring in the utility model.

[0030] Legend Explanation:

[0031] 1. Housing; 2. Water inlet pipe; 3. Water outlet pipe; 4. Stepper motor; 5. Rotating column; 6. Mounting column; 7. Sealing ring; 8. Centering rod; 9. Slot; 10. Control rod; 11. Pull rope; 12. Limit rod; 13. Spring; 14. Limit groove; 15. Limit ring; 16. Disturbing agitator; 17. Key pattern; 18. Keyway; 19. Upper cover; 20. Tightening bolt. Detailed implementation manner

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Refer to Figure 1 - Figure 2 As shown in the figure, an embodiment provided by the present invention is a sewage conveying device for an urban sewage treatment tank, including a housing 1. An upper cover 19 is arranged on the top of the housing 1. The upper cover 19 is fixedly connected to the housing 1 through a tightening bolt 20, which is convenient for disassembly and cleaning of the equipment inside the housing 1. A water inlet pipe 2 for connecting to an external sewage pipe is fixedly connected to the right side of the housing 1. A water outlet pipe 3 connected to an external sedimentation tank is fixedly connected to the left side of the housing 1. Flange plates are arranged on the sides of the water inlet pipe 2 and the water outlet pipe 3 away from each other, which is convenient for connection to external pipes. A driving mechanism is arranged on the back of the housing 1. The driving mechanism includes a stepper motor 4. The stepper motor 4 can accurately control the rotation angle of its output shaft, which is convenient for adjusting the rotation speed and rotation angle of its rotating shaft, and can be adjusted accordingly according to different requirements, improving the control accuracy. The stepper motor 4 is fixedly installed on the back of the housing 1. A rotating column 5 is fixedly connected to the front side of the output shaft of the stepper motor 4. The rotating column 5 penetrates and is rotatably installed on the inner wall of the housing 1.

[0034] Refer to Figure 3 、 Figure 4 As shown in the figure, an installation mechanism is arranged inside the housing 1. The installation mechanism includes a mounting column 6 and a centering rod 8. Sealing rings 7 are fixedly connected to the sides of the rotating column 5 and the mounting column 6 close to each other. The mounting column 6 penetrates and is rotatably installed on the inner wall of the housing 1. Both the rotating column 5 and the mounting column 6 are installed on the inner wall of the housing 1 through sealed bearings, ensuring the sealing performance during the rotation process. The sealed bearing is a prior art. Slots 9 matching the centering rod 8 are arranged inside both the mounting column 6 and the rotating column 5. The centering rod 8 is inserted into the inner wall of the slot 9.

[0035] Refer to Figure 4 、 Figure 5, a control mechanism is provided inside the centering rod 8. The control mechanism includes a control rod 10, a pull rope 11, a limiting rod 12, a spring 13, a limiting groove 14, and a limiting ring 15. The control rod 10 is slidably installed on the inner wall of the centering rod 8. The control rod 10 is horizontally arranged and its sliding direction is back and forth. One end of the pull rope 11 is fixedly connected to the rear side of the control rod 10, and the other end of the pull rope 11 is fixedly connected to the surface of the limiting rod 12. The limiting rod 12 is slidably installed on the inner wall of the centering rod 8, and the sliding direction of the limiting rod 12 is the radial direction of the centering rod 8.

[0036] Refer to Figure 4 - Figure 6 , the limiting rod 12 is elastically connected to the inner wall of the centering rod 8 through the spring 13. By setting the spring 13, an elastic force is applied to the limiting rod 12 in a direction away from the center of the centering rod 8. The limiting groove 14 is opened on the inner wall of the slot 9. The limiting groove 14 cooperates with the limiting rod 12, and the limiting rod 12 is inserted into the inner wall of the limiting groove 14. When the limiting rod 12 is inserted into the limiting groove 14, the centering rod 8, the rotating column 5, and the mounting column 6 can be regarded as a whole. The rotation of the rotating column 5 will drive the mounting column 6 and the centering rod 8 to rotate together. The number of limiting rods 12 is set to be multiple, and the multiple limiting rods 12 are arranged at equal angular intervals in a ring inside the centering rod 8. The limiting ring 15 is fixedly installed on the inner wall of the centering rod 8, and the pull rope 11 passes through the inside of the limiting ring 15. When the control rod 10 moves forward, the pull rope 11 drives the multiple limiting rods 12 to move simultaneously in a direction close to the center of the centering rod 8, and the limiting rods 12 are completely disengaged from the inside of the limiting groove 14, so that the centering rod 8 can be pulled out forward, and then the disturbing agitator 16 can be conveniently and quickly taken out from the inside of the housing 1 for replacement, and it can be replaced according to needs to adapt to different cleaning requirements, and the replacement can be completed without a complex disassembly process.

[0037] Refer to Figure 2 - Figure 4 , a disturbing mechanism is provided outside the centering rod 8. The disturbing mechanism includes a disturbing agitator 16, which is convenient for the bubbles in the sewage to overflow and reduces the air flotation phenomenon. The disturbing agitator 16 is sleeved outside the centering rod 8. Both the front and rear sides of the disturbing agitator 16 are in contact with the sealing ring 7 to improve the sealing performance. A key pattern 17 is fixedly connected to the inner wall of the disturbing agitator 16, and a key groove 18 matching the key pattern 17 is opened on the circumferential surface of the centering rod 8. Through the cooperation of the key groove 18 and the key pattern 17, the disturbing agitator 16 rotates with the centering rod 8.

[0038] Working principle: During use, place the disturbance agitator 16 between the rotating column 5 and the mounting column 6 inside the housing 1. Then, pull the control rod 10 on the front side of the centering rod 8, so that the control rod 10 pulls the limiting rod 12 through the pull rope 11 to completely enter the inside of the centering rod 8. Then, insert the centering rod 8 backward into the inside of the slot 9, and sleuth the disturbance agitator 16 outside the centering rod 8. Then, release the control rod 10, so that the limiting rod 12 resets under the action of the spring 13 and enters the inside of the limiting groove 14, playing a role in fixing and installing the centering rod 8. At the same time, the disturbance agitator 16 contacts the rotating column 5 and the mounting column 6 through the sealing ring 7, reducing the possibility of liquid leakage and improving the sealing effect.

[0039] When the disturbance agitator 16 is sleeved outside the centering rod 8, the keyways 17 on the inner wall of the disturbance agitator 16 will also be synchronously inserted into the key slots 18. When the stepping motor 4 works, the output shaft of the stepping motor 4 can drive the centering rod 8 and the disturbance agitator 16 to rotate synchronously through the rotating column 5, facilitating the overflow of air bubbles in the sewage, reducing the air flotation phenomenon, and thus improving the sewage treatment effect.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sewage conveying device for an urban sewage treatment tank, comprising a housing (1), characterized in that: A water inlet pipe (2) is fixedly connected to the right side of the housing (1), a water outlet pipe (3) is fixedly connected to the left side of the housing (1), a driving mechanism is arranged on the back surface of the housing (1), the driving mechanism includes a stepping motor (4), the stepping motor (4) is fixedly installed on the back surface of the housing (1), a rotating column (5) is fixedly connected to the front side of the output shaft of the stepping motor (4), an installation mechanism is arranged inside the housing (1), the installation mechanism includes an installation column (6) and a centering rod (8), the installation column (6) penetrates and is rotatably installed on the inner wall of the housing (1), slots (9) are arranged inside both the installation column (6) and the rotating column (5), the centering rod (8) is inserted on the inner wall of the slot (9), a control mechanism is arranged inside the centering rod (8), the control mechanism includes a control rod (10), a pull rope (11), a limiting rod (12), a spring (13), a limiting groove (14) and a limiting ring (15), a disturbing mechanism is arranged outside the centering rod (8), and the disturbing mechanism includes a disturbing agitator (16).

2. The sewage conveying device of an urban sewage treatment tank according to claim 1, characterized in that: The rotating column (5) penetrates and is rotatably installed on the inner wall of the housing (1), and a sealing ring (7) is fixedly connected to the side where the rotating column (5) and the installation column (6) are close to each other.

3. The sewage conveying device of an urban sewage treatment tank according to claim 1, characterized in that: The control rod (10) is slidably installed on the inner wall of the centering rod (8), one end of the pull rope (11) is fixedly connected to the rear side of the control rod (10), the other end of the pull rope (11) is fixedly connected to the surface of the limiting rod (12), and the limiting rod (12) is slidably installed on the inner wall of the centering rod (8).

4. The sewage conveying device of an urban sewage treatment tank according to claim 3, characterized in that: The limiting rod (12) is elastically connected to the inner wall of the centering rod (8) through the spring (13), the limiting groove (14) is opened on the inner wall of the slot (9), the limiting rod (12) is inserted on the inner wall of the limiting groove (14), the number of the limiting rods (12) is set to be multiple, and the multiple limiting rods (12) are arranged at equal angular intervals in a ring inside the centering rod (8).

5. The sewage conveying device of an urban sewage treatment tank according to claim 4, characterized in that: The limiting ring (15) is fixedly installed on the inner wall of the centering rod (8), and the pull rope (11) passes through the inside of the limiting ring (15).

6. The sewage conveying device of an urban sewage treatment tank according to claim 1, characterized in that: The disturbing agitator (16) is sleeved outside the centering rod (8), and both the front and rear sides of the disturbing agitator (16) are in contact with the sealing ring (7).

7. The sewage conveying device of an urban sewage treatment tank according to claim 6, characterized in that: Key patterns (17) are fixedly connected to the inner wall of the disturbing agitator (16), and key grooves (18) are opened on the circumferential surface of the centering rod (8).

8. The sewage conveying device of an urban sewage treatment tank according to claim 1, characterized in that: An upper cover (19) is arranged on the top of the housing (1), and the upper cover (19) is fixedly connected to the housing (1) through fastening bolts (20).

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