Sewage treatment sedimentation tank

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a sewage treatment sedimentation tank, which comprises a sedimentation tank main body and a support rotationally connected to the center inside the sedimentation tank main body through a motor, the inner wall of the sedimentation tank main body is fixedly connected with a gear ring, and the bottom of the support is fixedly connected with a base. By arranging the slidable scraping plate, when the support drives the base to rotate, the sealing block can be driven to slide in the sealing groove through meshing of the gear and the gear ring, and the interior of the limiting groove is pressurized, so that the scraping plate extends downwards and automatically abuts against the bottom end of the interior of the sedimentation tank main body; the scraper blade can be ensured to be in close contact with the inner bottom end of the sedimentation tank main body, so that better functions of cleaning, scraping and the like are realized, the working efficiency and effect are improved, and when the scraper blade retracts into the sliding chute, sludge on the surface of the scraper blade can be cleaned through the inner wall of the sliding chute, so that the surface of the scraper blade is kept clean, and the service life of the scraper blade is prolonged. And the service life of the scraper is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field more particularly to a sewage treatment sedimentation tank. BACKGROUND

[0002] Sewage treatment sedimentation tank is the key equipment in sewage treatment process, and its working principle is to remove the suspended solids in water by means of sedimentation. Due to the density difference between suspended solids and water in sewage, the suspended solids will naturally settle to the bottom under the action of gravity, thereby realizing solid-liquid separation. When sewage flows into the sedimentation tank, the water flow rate will slow down, which provides favorable conditions for the sedimentation of suspended solids.

[0003] In the traditional sewage treatment sedimentation tank, a support driven to rotate by a motor is arranged at the bottom, and two arc-shaped scrapers are arranged at the bottom of the support. After the motor is started, the support drives the scrapers to rotate at the bottom of the sedimentation tank to clean the sludge. However, the scrapers are directly fixed at the bottom of the support. During long-term use, gaps will appear between the scrapers and the bottom due to the continuous friction therebetween. Once gaps appear between the scrapers and the bottom, part of the sludge cannot be effectively scraped off. With the passage of time, the residual sludge will continue to accumulate at the bottom, which not only reduces the effective volume of the sedimentation tank, but also increases the difficulty of subsequent cleaning work, resulting in the need to invest more manpower, material resources and time for treatment. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a sewage treatment sedimentation tank to solve the problems in the above background.

[0005] The utility model provides the following technical scheme: a sewage treatment sedimentation tank, including the sedimentation tank main part and the support that is rotated and is connected at the inside center place of the sedimentation tank main part through the motor, the inner wall of the sedimentation tank main part is fixedly connected with the gear ring, the bottom of the support is fixedly connected with the base, the inside of the base is provided with the sliding slot, the inside of the sliding slot is slidably connected with the scraper, the inside of the base is provided with the rotation groove, the inside of the base is fixedly installed with the bearing, the inner ring of the bearing is fixedly connected with the rotating shaft, the outer surface of the rotating shaft is fixedly connected with the gear, the surface of the gear is fixedly connected with the fixed pin, the outer surface of the fixed pin is rotatably connected with the connecting plate, the inside of the connecting plate is rotatably connected with the fixed shaft, the end surface of the fixed shaft is fixedly connected with the sealing block, the inside of the base is provided with the sealing groove, the inside of the base is provided with the limit groove at equal intervals, the inside of the limit groove is sealingly and slidably connected with the sealing plate, the bottom of the sealing plate is fixedly connected with the connecting rod, the outer surface of the connecting rod is movably sleeved with the spring, the inside of the base is fixedly connected with the breather pipe, the communicating pipe and the air inlet pipe, the output end of the air inlet pipe is fixedly installed with the second straight flow check valve, the output end of the breather pipe is fixedly installed with the first straight flow check valve.

[0006] Further, the connecting rod is fixedly connected to the surface of the scraper away from the end face of the sealing plate, the chute and the scraper are arc-shaped, and the chute and the scraper are matched in size.

[0007] Further, the inside of the sealing groove is communicated with the top end of the limiting groove through a first straight-flow one-way valve and an air pipe, and the input end of the first straight-flow one-way valve is close to the inside of the sealing groove.

[0008] Further, the top of the air inlet pipe extends to the outside of the sedimentation tank body, and the outside air of the sedimentation tank body is communicated with the inside of the sealing groove through the air inlet pipe and a second straight-flow one-way valve.

[0009] Further, the inside of the air pipe is communicated with the inside of the air inlet pipe through a communication pipe, and the diameter of the communication pipe is much smaller than the diameters of the air pipe and the air inlet pipe.

[0010] Further, the surface of the gear is engagedly connected to the surface of the tooth ring, the outer surface of the sealing block is fixedly provided with a sealing ring, the outer surface of the sealing block is sealingly and slidably connected to the inside of the sealing groove, the outer surface of the connecting plate is rotatably connected to the inside of the base, and the gear is rotatably connected to the inside of the rotating groove.

[0011] The technical effects and advantages of the present application are as follows:

[0012] 1. The scraper can slide, when the base is driven to rotate by the support, the sealing block can slide in the sealing groove through the engagement of the gear and the tooth ring, the inside of the limiting groove is pressurized, the scraper can extend downward and automatically abut against the bottom end of the inside of the sedimentation tank body, the scraper can be in close contact with the bottom end of the inside of the sedimentation tank body, and the functions of better cleaning and scraping can be realized, and the working efficiency and effect are improved.

[0013] 2. The scraper can automatically slide, when the scraper is retracted in the chute, the sludge on the surface of the scraper can be cleaned through the inner wall of the chute, the surface of the scraper can be kept clean, and the service life of the scraper is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the present application;

[0015] Figure 2 It is a connection schematic view of the support and the base in the present application;

[0016] Figure 3 It is a sectional view of the base in the present application;

[0017] Figure 4 It is Figure 3Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram of the sealing block in this utility model.

[0019] The attached diagram is labeled as follows: 1. Sedimentation tank body; 2. Support frame; 3. Gear ring; 4. Base; 5. Slide groove; 6. Scraper; 7. Rotating groove; 8. Gear; 9. Rotating shaft; 10. Bearing; 11. Fixing pin; 12. Connecting plate; 13. Fixing shaft; 14. Sealing groove; 15. Sealing block; 16. Limiting groove; 17. Spring; 18. Connecting rod; 19. Sealing plate; 20. Vent pipe; 201. Connecting pipe; 21. First DC one-way valve; 22. Second DC one-way valve; 23. Air inlet pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0021] Figure 1 - Figure 5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 - Figure 5 The present invention will be further described below.

[0022] Specifically, a wastewater treatment sedimentation tank includes a sedimentation tank body 1 and a support 2 rotatably connected to the center of the sedimentation tank body 1 via a motor. A toothed ring 3 is fixedly connected to the inner wall of the sedimentation tank body 1. A base 4 is fixedly connected to the bottom of the support 2. A sliding groove 5 is formed inside the base 4, and a scraper 6 is slidably connected inside the sliding groove 5. A rotating groove 7 is formed inside the base 4, and a bearing 10 is fixedly installed inside the base 4. A rotating shaft 9 is fixedly connected to the inner ring of the bearing 10. A gear 8 is fixedly connected to the outer surface of the rotating shaft 9. A fixing pin 11 is fixedly connected to the surface of the gear 8, and a connecting plate 12 is rotatably connected to the outer surface of the fixing pin 11. A fixed shaft 13 is rotatably connected inside the connecting plate 12. A sealing block 15 is fixedly connected to the end face of the fixed shaft 13. A sealing groove 14 is opened inside the base 4. Limiting grooves 16 are opened at equal intervals inside the base 4. A sealing plate 19 is slidably connected inside the limiting groove 16. A connecting rod 18 is fixedly connected to the bottom of the sealing plate 19. A spring 17 is movably sleeved on the outer surface of the connecting rod 18. A vent pipe 20, a connecting pipe 201, and an air inlet pipe 23 are fixedly connected inside the base 4. A second DC one-way valve 22 is fixedly installed at the output end of the air inlet pipe 23. A first DC one-way valve 21 is fixedly installed at the output end of the vent pipe 20.

[0023] In this embodiment, by setting a sliding scraper 6, when the bracket 2 drives the base 4 to rotate, the meshing of the gear 8 and the gear ring 3 can drive the sealing block 15 to slide inside the sealing groove 14 and increase the pressure inside the limiting groove 16, so that the scraper 6 extends downward and automatically abuts against the bottom of the sedimentation tank body 1. This ensures that the scraper 6 is in close contact with the bottom of the sedimentation tank body 1, thereby achieving better cleaning and scraping functions and improving work efficiency and effect.

[0024] Specifically, the end face of the connecting rod 18 away from the sealing plate 19 is fixedly connected to the surface of the scraper 6. Both the groove 5 and the scraper 6 are arc-shaped, and the sizes of the groove 5 and the scraper 6 are matched.

[0025] In this embodiment, by setting an automatically sliding scraper 6, when the scraper 6 retracts into the groove 5, it can clean the sludge on the surface of the scraper 6 through the inner wall of the groove 5, which helps to keep the surface of the scraper 6 clean and extend the service life of the scraper 6.

[0026] Specifically, the interior of the sealing groove 14 is connected to the top of the interior of the limiting groove 16 through the first DC one-way valve 21 and the vent pipe 20, and the input end of the first DC one-way valve 21 is close to the interior of the sealing groove 14.

[0027] In this embodiment, by setting a first DC one-way valve 21, the backflow of air inside the vent pipe 20 can be prevented when the sealing block 15 slides to the right.

[0028] Specifically, the top of the air inlet pipe 23 extends to the outside of the sedimentation tank body 1, and the external air of the sedimentation tank body 1 is connected to the inside of the sealing groove 14 through the air inlet pipe 23 and the second DC one-way valve 22.

[0029] In this embodiment, by setting a second DC one-way valve 22, air backflow inside the air intake pipe 23 can be prevented when the sealing block 15 slides to the left.

[0030] Specifically, the interior of the vent pipe 20 is connected to the interior of the air intake pipe 23 through the connecting pipe 201, and the diameter of the connecting pipe 201 is much smaller than the diameter of the vent pipe 20 and the air intake pipe 23.

[0031] In this embodiment, when the motor is turned off, the pressurization operation inside the sealing groove 14 stops. The elasticity of the spring 17 causes the sealing plate 19 to slide upward, and the air inside the limiting groove 16 is discharged from the air inlet pipe 23 through the vent pipe 20 and the connecting pipe 201. The scraper 6 retracts back into the sliding groove 5.

[0032] Specifically, the surface of the gear 8 is meshed with the surface of the gear ring 3, a sealing ring is fixedly installed on the outer surface of the sealing block 15, the outer surface of the sealing block 15 is slidably connected to the inside of the sealing groove 14, the outer surface of the connecting plate 12 is rotatably connected to the inside of the base 4, and the gear 8 is rotatably connected to the inside of the rotating groove 7.

[0033] In this embodiment, due to the meshing of gear 8 and gear ring 3, when the base 4 rotates, it can drive gear 8 to rotate through gear ring 3.

[0034] The working principle and usage process of this utility model are as follows: During use, the motor drives the bracket 2 to rotate, which in turn drives the base 4 to rotate. At this time, the meshing of the gear 8 and the gear ring 3 drives the gear 8 to rotate. The gear 8, through the fixing pin 11, drives the connecting plate 12 to rotate, and causes the sealing block 15 to slide back and forth. When the sealing block 15 slides to the right, external air enters the sealing groove 14 through the air inlet pipe 23 and the second DC one-way valve 22. When the sealing block 15 slides to the left, the second DC one-way valve 22 is closed, and the air inside the sealing groove 14 can enter the top of the limiting groove 16 through the first DC one-way valve 21 and the vent pipe 20, and then, through the sealing plate 19 and the connecting rod 18, drive the scraper... As the scraper 6 slides downwards, it does not directly penetrate deep into the sludge, thus avoiding damage to the motor caused by sudden high resistance. When the scraper 6 slides downwards, it works in conjunction with the rotation of the base 4 to clean the sludge at the bottom of the sedimentation tank body 1, ensuring close contact between the scraper 6 and the bottom of the sedimentation tank body 1, thereby achieving better cleaning and scraping functions and improving work efficiency and effectiveness. When the motor is turned off, the pressurization operation inside the sealing groove 14 stops, and the sealing plate 19 slides upwards through the elasticity of the spring 17, and the air inside the limiting groove 16 is discharged from the air inlet pipe 23 through the vent pipe 20 and the connecting pipe 201. The scraper 6 retracts into the sliding groove 5.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A wastewater treatment sedimentation tank, comprising a sedimentation tank body (1) and a support (2) rotatably connected to the center of the sedimentation tank body (1) via a motor, characterized in that: A toothed ring (3) is fixedly connected to the inner wall of the sedimentation tank body (1). A base (4) is fixedly connected to the bottom of the support (2). A sliding groove (5) is provided inside the base (4). A scraper (6) is slidably connected inside the sliding groove (5). A rotating groove (7) is provided inside the base (4). A bearing (10) is fixedly installed inside the base (4). A rotating shaft (9) is fixedly connected to the inner ring of the bearing (10). A gear (8) is fixedly connected to the outer surface of the rotating shaft (9). A fixing pin (11) is fixedly connected to the surface of the gear (8). A connecting plate (12) is rotatably connected to the outer surface of the fixing pin (11). A fixing shaft (13) is rotatably connected inside the connecting plate (12). A sealing block (15) is fixedly connected to the end face of the fixed shaft (13). A sealing groove (14) is opened inside the base (4). A limit groove (16) is opened at equal intervals inside the base (4). A sealing plate (19) is slidably connected inside the limit groove (16). A connecting rod (18) is fixedly connected to the bottom of the sealing plate (19). A spring (17) is movably sleeved on the outer surface of the connecting rod (18). A vent pipe (20), a connecting pipe (201), and an air inlet pipe (23) are fixedly connected inside the base (4). A second DC one-way valve (22) is fixedly installed at the output end of the air inlet pipe (23). A first DC one-way valve (21) is fixedly installed at the output end of the vent pipe (20).

2. The wastewater treatment sedimentation tank according to claim 1, characterized in that: The end face of the connecting rod (18) away from the sealing plate (19) is fixedly connected to the surface of the scraper (6). The groove (5) and the scraper (6) are both arc-shaped, and the size of the groove (5) and the scraper (6) are matched.

3. A wastewater treatment sedimentation tank according to claim 1, characterized in that: The interior of the sealing groove (14) is connected to the top of the inner end of the limiting groove (16) through the first DC one-way valve (21) and the vent pipe (20), and the input end of the first DC one-way valve (21) is close to the interior of the sealing groove (14).

4. A wastewater treatment sedimentation tank according to claim 1, characterized in that: The top of the air inlet pipe (23) extends to the outside of the sedimentation tank body (1), and the external air of the sedimentation tank body (1) is connected to the inside of the sealing groove (14) through the air inlet pipe (23) and the second DC one-way valve (22).

5. A wastewater treatment sedimentation tank according to claim 1, characterized in that: The interior of the ventilation pipe (20) is connected to the interior of the air inlet pipe (23) through a connecting pipe (201). The diameter of the connecting pipe (201) is much smaller than the diameter of the ventilation pipe (20) and the air inlet pipe (23).

6. A wastewater treatment sedimentation tank according to claim 1, characterized in that: The surface of the gear (8) is meshed with the surface of the gear ring (3). A sealing ring is fixedly installed on the outer surface of the sealing block (15). The outer surface of the sealing block (15) is slidably connected to the inside of the sealing groove (14). The outer surface of the connecting plate (12) is rotatably connected to the inside of the base (4). The gear (8) is rotatably connected to the inside of the rotating groove (7).

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