Domestic sewage collecting and settling tank

Abstract

The utility model discloses a domestic sewage collecting and settling tank which comprises a tank body and a sewage discharging mechanism, a mud collecting groove is formed in the center of the bottom of the tank body, a mud discharging valve is connected in series with the middle of a blow-off pipe at the lower end of the mud collecting groove, the upper end of the mud collecting groove is communicated with the bottom of the tank body, a water inlet pipe is arranged on the right side of the outer surface of the tank body, and a guide plate is fixedly installed at the upper end of the inner wall of the right side of the tank body and corresponds to the water inlet pipe in the left-right direction; the upper end of the tank body is fixedly connected with two supporting seats which are symmetrically distributed, the upper end of the tank body is provided with an effluent weir, and the effluent weir is communicated with a water outlet pipe on the left side of the outer surface of the tank body; the sewage discharging mechanism is arranged between the tops of the two supporting seats, a control switch is arranged at the lower end of the outer surface of the tank body, the domestic sewage collecting and settling tank can scrape off sediments on the bottom wall and adsorb oil stains floating on the surface of sewage at the same time after settling is completed, and sewage treatment is more thorough.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, specifically to a domestic sewage collection and settling tank. Background Art

[0002] As people's living standards improve, the natural resources consumed in daily life are also increasing. However, many natural resources are non-renewable. Therefore, it is crucial to strengthen the protection of these natural resources. Among these natural resources, water resources are the most typical. Faced with this dilemma, some communities have begun to respond to the call to treat domestic sewage in residential areas by sedimentation before discharge in order to avoid secondary pollution of water resources. The sedimentation treatment of sewage is of utmost importance.

[0003] Traditional wastewater settling tanks are mainly tank bodies with rotating scrapers installed inside. A sludge collection trough is set below the scrapers, and a sludge outlet is set on the lower side of the sludge collection trough.

[0004] These types of sewage settling tanks have the following disadvantages: low settling efficiency and poor sewage treatment effect. In addition, the scraper will be replaced more frequently due to contact friction. The scraper's circumferential motion has low efficiency in separating sludge and dirt. The collection components are also inconvenient to replace. Therefore, we propose a domestic sewage collection settling tank. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a domestic sewage collection sedimentation tank that can scrape off the sediment on the bottom wall while adsorbing the oil floating on the sewage surface after sedimentation, so as to treat the sewage more thoroughly and effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a domestic sewage collection and settling tank, comprising a tank body and a sewage discharge mechanism;

[0007] Tank body: A sludge collection trough is set at the center of its bottom. A sludge discharge valve is connected in series in the middle of the sewage pipe at the lower end of the sludge collection trough. The upper end of the sludge collection trough is connected to the bottom of the tank body. A water inlet pipe is set on the right side of the outer surface of the tank body. A guide plate is fixedly installed on the upper end of the inner wall of the right side of the tank body. The guide plate corresponds to the left and right positions of the water inlet pipe. Two symmetrically distributed support seats are fixedly connected to the upper end of the tank body. A water outlet weir is opened at the upper end of the tank body. The water outlet weir is connected to the water outlet pipe on the left side of the outer surface of the tank body.

[0008] Sewage discharge mechanism: Located between the tops of two support bases, it can scrape off the sediment from the bottom wall while adsorbing the oil floating on the sewage surface after the settling process is completed, making the sewage treatment more thorough. At the same time, the blade body adopts an elastic telescopic structure, which can ensure that the blade body is always in contact with the scraped surface, reducing the number of times the blade body needs to be replaced. When scraping off the sediment from the bottom wall, the separation is more efficient and thorough, and the replacement of the oil adsorption component during the domestic sewage collection and settling process is more convenient.

[0009] Furthermore, a control switch is provided at the lower end of the outer surface of the tank. The input end of the control switch is electrically connected to an external power source to facilitate the control of each electrical component.

[0010] Furthermore, the sewage discharge mechanism includes a motor, a support plate, a fiber adhesive plate, and a transmission rod. The lower surface of the support plate is connected to the upper surface of the support base by bolts. The motor is fixedly installed in the middle of the upper surface of the support plate. The output shaft of the motor passes through the support plate and is fixedly connected to the top of the transmission rod. A fiber adhesive plate is inserted into the socket on the upper right side of the transmission rod. The input end of the motor is electrically connected to the output end of the control switch to realize the automatic scraping of sediment from the tank.

[0011] Furthermore, an adjustment hole is provided on the upper right side of the transmission rod, which is connected to the insertion port. An adjustment handle is rotatably connected inside the adjustment hole via a pin. A limiting block is provided at the end of the adjustment handle near the central axis of the transmission rod. A limiting groove is provided on the column of the fiber adhesive board, and the limiting block engages with the limiting groove. A spring piece is provided in the middle of the bottom wall of the adjustment hole, and the upper end of the spring piece is fitted with the upper side of the bottom surface of the adjustment handle to facilitate the disassembly and assembly of the fiber adhesive board.

[0012] Furthermore, the sewage discharge mechanism also includes a scraper, a spring, and a scraper blade. The scraper blades are fixedly connected to the bottom of the outer surface of the transmission rod. A groove is provided at the end of the scraper blade away from the central axis of the transmission rod. The scraper blade is slidably connected inside the groove. A spring is fixedly installed between the scraper blade and the inner wall of the groove. The spring can adjust the extension and retraction of the scraper blade inside the scraper blade.

[0013] Furthermore, a base is fixedly connected to the lower end of the outer surface of the tank, which can provide stable support for the tank.

[0014] Furthermore, a baffle is provided at the bottom of the tank, which is installed in conjunction with a scraper. The baffle and scraper work together to scrape the sediment toward the central axis of the tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This domestic sewage collection and settling tank has the following advantages:

[0016] 1. Turn on the motor via the control switch. The motor's operation drives the transmission rod to rotate, which in turn drives the fiber adhesive plate at the upper end and the scraper at the lower end to rotate slowly. The fiber adhesive plate adsorbs the grease floating on the surface of the sewage that cannot settle, while the scraper scrapes away the sediment settling at the bottom of the tank. When the scraper rotates to the front of the baffle, the inclined surface of the scraper blade contacts the inclined surface on the front side of the baffle. When the scraper blade is compressed, it compresses the spring below it and retracts into the scraper blade. With the cooperation of the baffle, the sediment is pushed into the tank. The blade is pushed along the central axis of the tank, scraping the sediment into the sludge collection trough at the bottom of the tank. After the sediment is scraped into the sludge collection trough, the motor is turned off by the control switch. After the sedimentation is completed, the blade can simultaneously scrape off the sediment on the bottom wall and adsorb the oil floating on the surface of the sewage, resulting in higher sewage treatment efficiency, better effect, and more thorough sewage treatment. At the same time, the blade body structure adopts an elastic telescopic structure, which can ensure that the blade body is always in contact with the scraped surface, reducing the number of times the blade body needs to be replaced. When scraping off the sediment on the bottom wall, the separation is more efficient and thorough.

[0017] 2. Wastewater treatment workers turn on the motor via a control switch. The motor drives the transmission rod to rotate, which in turn drives the fiber adhesive plate at the upper end and the scraper at the lower end to rotate slowly. The fiber adhesive plate adsorbs the grease that floats on the surface of the wastewater and cannot settle, while the scraper scrapes away the sediment that settles at the bottom of the tank. When the scraper rotates to the front of the baffle, the inclined surface of the scraper blade contacts the inclined surface on the front side of the baffle. When the scraper blade is squeezed, it compresses the spring below it and retracts into the scraper blade, making it easier to replace the oil adsorption components during the collection and settling of domestic wastewater. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the fiber adhesive plate and the transmission rod of this utility model.

[0022] In the diagram: 1 Tank body, 2 Control switch, 3 Base, 4 Sludge discharge valve, 5 Water inlet pipe, 6 Support base, 7 Sewage discharge mechanism, 71 Motor, 72 Support plate, 73 Fiber adhesive plate, 74 Transmission rod, 75 Scraper, 76 Spring, 77 Scraper blade, 8 Water outlet pipe, 9 Water outlet weir, 10 Guide plate, 11 Adjusting handle, 12 Stop block, 13 Sludge collection trough, 14 Spring. Detailed Implementation

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Please see Figure 1-4 This embodiment provides a technical solution: a domestic sewage collection and settling tank, including a tank body 1 and a sewage discharge mechanism 7;

[0025] Tank 1: A sludge collection trough 13 is installed at the center of its bottom. A sludge discharge valve 4 is connected in series in the middle of the sewage discharge pipe at the lower end of the sludge collection trough 13. Opening the sludge discharge valve 4 discharges the sediment. If too much sediment accumulates in the tank 1, it will affect the overall settling effect. The upper end of the sludge collection trough 13 is connected to the bottom of the tank 1. A water inlet pipe 5 is installed on the right side of the outer surface of the tank 1. A guide plate 10 is fixedly installed on the upper end of the right inner wall of the tank 1. The guide plate 10 corresponds to the left and right positions of the water inlet pipe 5. Wastewater treatment workers transport the wastewater that needs to be settled into the tank 1 through the water inlet pipe 5. Wastewater entering the tank first passes through the guide plate 10 and flows into the tank 1 through the inclined opening on the surface of the guide plate 10 for deceleration and energy dissipation. Two symmetrically distributed support seats 6 are fixedly connected to the upper end of the tank 1. A water outlet weir 9 is provided at the upper end of the tank 1. The water outlet weir 9 is connected to the water outlet pipe 8 on the left side of the outer surface of the tank 1. A control switch 2 is provided at the lower end of the outer surface of the tank 1. The input end of the control switch 2 is electrically connected to an external power source. A base 3 is fixedly connected to the lower end of the outer surface of the tank 1. A baffle 12 is provided at the bottom of the inside of the tank 1. The baffle 12 is installed in conjunction with the scraper 77.

[0026] Sewage discharge mechanism 7: It is located between the tops of the two support bases 6. The sewage discharge mechanism 7 includes a motor 71, a support plate 72, a fiber adhesive board 73, and a transmission rod 74. The lower surface of the support plate 72 is bolted to the upper surface of the support base 6. The motor 71 is fixedly installed in the middle of the upper surface of the support plate 72. The output shaft of the motor 71 passes through the support plate 72 and is fixedly connected to the top of the transmission rod 74. A fiber adhesive board 73 is inserted into the socket on the upper right side of the transmission rod 74. An adjustment hole is provided on the upper right side of the transmission rod 74. The adjustment hole is connected to the socket. An adjustment handle 11 is rotatably connected to the inside of the adjustment hole through a pin. A limit block is provided at the end of the adjustment handle 11 near the central axis of the transmission rod 74. A limiting groove is provided on the column of the fiber adhesive plate 73. The limiting block engages with the limiting groove. A spring piece 14 is provided in the middle of the bottom wall of the adjusting hole. The upper end of the spring piece 14 is fitted with the upper side of the bottom surface of the adjusting handle 11. The sewage treatment worker also needs to press the adjusting handle 11 located on the upper right side of the transmission rod 74 within a unit time. The spring piece 14 is squeezed, the limiting block separates from the limiting groove, and the fiber adhesive plate 73 is pulled out. The fiber adhesive plate 73 is then replaced and cleaned. After cleaning, the fiber adhesive plate 73 is inserted into the socket by pressing the adjusting handle 11 again. The limiting block aligns with the limiting groove. The adjusting handle 11 is released, and the limiting block engages with the limiting groove under the action of the spring piece 14's rebound force, thus limiting the fiber adhesive plate 73. The operator also needs to press the adjustment handle 11 located on the upper right side of the transmission rod 74 within a unit time to pull out the fiber adhesive plate 73, replace and clean the fiber adhesive plate 73. After cleaning, the fiber adhesive plate 73 is inserted into the adjustment hole by pressing the adjustment handle 11 again. The input end of the motor 71 is electrically connected to the output end of the control switch 2. The sewage discharge mechanism 7 also includes a scraper 75, a spring 76 and a scraper blade 77. The scraper 75 is fixedly connected to the bottom of the outer surface of the transmission rod 74. A groove is opened at the end of the scraper 75 away from the central axis of the transmission rod 74. The scraper blade 77 is slidably connected inside the groove. The spring 76 is fixedly installed between the scraper blade 77 and the inner wall of the groove. The sewage treatment operator turns on the power switch 2. The motor 71 drives the transmission rod 74 to rotate. The transmission rod 74 drives the fiber adhesive plate 73 located at the upper end of the transmission rod 74 and the scraper 75 located at the lower end of the transmission rod 74 to rotate slowly. The fiber adhesive plate 73 will absorb the oil that floats on the surface of the sewage and cannot settle. The scraper 75 will scrape off the sediment that has settled at the bottom of the tank 1. When the scraper 75 rotates to the front of the stop block 12, the inclined surface of the scraper blade 77 will contact the inclined surface on the front side of the stop block 12. When the scraper blade 77 is squeezed, the scraper blade 77 will squeeze the spring 76 below it and retract into the scraper blade 75. With the cooperation of the stop block 12, the sediment is pushed towards the central axis of the tank 1, thereby scraping the sediment into the sludge collection trough 13 at the bottom of the tank 1.

[0027] The working principle of the domestic sewage collection sedimentation tank provided by this utility model is as follows:

[0028] Wastewater treatment workers transport the wastewater requiring settling into tank 1 through inlet pipe 5. The wastewater first passes through guide plate 10 and flows into tank 1 through an angled opening on the surface of guide plate 10 for deceleration and energy dissipation. After tank 1 is filled with water, flocculant can be added to the water to aid settling. When the wastewater has settled for the set time, the wastewater treatment workers turn on motor 71 via control switch 2. Motor 71 drives transmission rod 74 to rotate, which in turn drives the fiber at the upper end of transmission rod 74. The fiber adhesive plate 73 and the scraper 75 located at the lower end of the transmission rod 74 rotate slowly. The fiber adhesive plate 73 will adsorb the grease that cannot settle on the surface of the sewage, while the scraper 75 will scrape off the sediment that has settled at the bottom of the tank 1. When the scraper 75 rotates to the front of the stop block 12, the inclined surface of the scraper blade 77 will contact the inclined surface on the front side of the stop block 12. When the scraper blade 77 is squeezed, it will squeeze the spring 76 below it and retract into the scraper blade 75. With the cooperation of the stop block 12, the sediment is pushed towards the central axis of the tank 1. This process scrapes the sediment into the sludge collection trough 13 at the bottom of tank 1. After the sediment is scraped into the sludge collection trough 13, the motor 71 is turned off by the control switch 2. The outlet pipe 8 can then be connected to an external pipe. After aligning the external pipe with the sewer, the external pipe valve is opened to drain the water. As the inlet pipe 5 continues to add water slowly and dynamically, the settled wastewater will flow into the outlet pipe 8 through the outlet weir 9 at the top of tank 1 for drainage. Wastewater treatment personnel also need to press the adjustment button located on the right side of the upper end of the transmission rod 74 within a unit of time. When the handle 11 and the spring 14 are squeezed, the limiting block separates from the limiting groove, and the fiber adhesive plate 73 is pulled out. The fiber adhesive plate 73 is replaced and cleaned. After cleaning, the fiber adhesive plate 73 is inserted into the socket by pressing the adjusting handle 11 again. The limiting block and the limiting groove are aligned. The adjusting handle 11 is released, and the limiting block and the limiting groove are engaged under the action of the spring 14, thereby limiting the fiber adhesive plate 73. In order to avoid the accumulation of too much sediment in the tank 1, which will affect the overall settling effect, the sludge discharge valve 4 can be opened to discharge the sediment.

[0029] It is worth noting that the motor 71 disclosed in the above embodiments can be a 200ex series, and the control switch 2 is provided with a control button corresponding to the motor 71 and used to control its switching.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A domestic sewage collection and sedimentation tank, characterized in that: It comprises a tank body (1) and a sewage discharge mechanism (7); The tank body (1) is provided with a mud collecting groove (13) at the center of the bottom thereof, a mud discharge valve (4) is connected in series in the middle of the sewage discharge pipe at the lower end of the mud collecting groove (13), the upper end of the mud collecting groove (13) is communicated with the bottom of the tank body (1), a water inlet pipe (5) is provided on the right side of the outer surface of the tank body (1), a guide plate (10) is fixedly installed on the upper end of the right inner wall of the tank body (1), the guide plate (10) corresponds to the left and right positions of the water inlet pipe (5), the upper end of the tank body (1) is fixedly connected with two symmetrically distributed support seats (6), the upper end of the tank body (1) is provided with a water outlet weir (9), and the water outlet weir (9) is communicated with the water outlet pipe (8) on the left side of the outer surface of the tank body (1); The sewage discharge mechanism (7) is arranged between the tops of the two support seats (6).

2. A domestic sewage collection and sedimentation tank according to claim 1, characterized in that: A control switch (2) is provided at the lower end of the outer surface of the tank body (1), and an input end of the control switch (2) is electrically connected to an external power source.

3. A domestic sewage collection and sedimentation tank according to claim 2, characterized in that: The sewage discharge mechanism (7) comprises a motor (71), a support plate (72), a fiber adhesive plate (73) and a transmission rod (74); the lower surface of the support plate (72) is respectively connected to the upper surface of the support seat (6) by bolts; the motor (71) is fixedly mounted on the middle part of the upper surface of the support plate (72); the output shaft of the motor (71) passes through the support plate (72) and is fixedly connected to the top of the transmission rod (74); the fiber adhesive plate (73) is inserted into the socket on the right side of the upper end of the transmission rod (74); and the input end of the motor (71) is electrically connected to the output end of the control switch (2).

4. A domestic sewage collection and sedimentation tank according to claim 3, characterized in that: An adjustment hole is provided on the right side of the upper end of the transmission rod (74), the adjustment hole is connected to the socket, an adjustment handle (11) is rotatably connected to the inside of the adjustment hole through a pin shaft, a limit block is provided at one end of the adjustment handle (11) close to the central axis of the transmission rod (74), a limit groove is provided on the column of the fiber adhesive plate (73), the limit block is engaged with the limit groove, a spring sheet (14) is provided in the middle of the bottom wall of the adjustment hole, and the upper end of the spring sheet (14) is mounted in cooperation with the upper side of the bottom surface of the adjustment handle (11).

5. A domestic sewage collection and sedimentation tank according to claim 3, characterized in that: The sewage discharge mechanism (7) further comprises a scraper (75), a spring (76) and a scraper blade (77); the scraper blades (75) are respectively fixedly connected to the bottom of the outer surface of the transmission rod (74); a sliding groove is provided at one end of the scraper blades (75) away from the central axis of the transmission rod (74); a scraper blade (77) is slidably connected inside the sliding groove; and a spring (76) is fixedly installed between the scraper blade (77) and the inner wall of the sliding groove.

6. A domestic sewage collection and sedimentation tank according to claim 1, characterized in that: The lower end of the outer surface of the tank body (1) is fixedly connected to a base (3).

7. A domestic sewage collection and sedimentation tank according to claim 5, characterized in that: A stopper (12) is provided at the inner bottom end of the tank body (1), and the stopper (12) is installed in cooperation with the scraper (77).

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