Sewage pretreatment device

Abstract

The utility model belongs to the technical field of sewage pretreatment, and discloses a sewage pretreatment device which comprises a treatment box with an opening in the upper end, a water inlet pipe is installed on the side wall of the treatment box, a water outlet pipe is installed on the side wall, away from the water inlet pipe, of the treatment box, and a filter screen is fixedly arranged on the inner wall of the treatment box. And cleaning equipment for cleaning garbage in the treatment box is arranged in the treatment box. The method has the effect of improving the working efficiency of workers.

Description

Technical Field

[0001] This utility model relates to the field of wastewater pretreatment technology, and in particular to a wastewater pretreatment device. Background Technology

[0002] There are many types of sewage in municipal systems, including domestic sewage, industrial wastewater, and rainwater. In municipal water supply and drainage systems, sewage discharge generally requires pretreatment, especially industrial wastewater, to meet discharge standards.

[0003] Chinese utility model patent CN221981671U discloses a wastewater pretreatment device, including a treatment box. An opening is provided at the bottom of one side of the treatment box, and a collection trough is located at the bottom of the same side below the opening. An arc-shaped filter plate is connected inside the treatment box, with its bottom end at the opening. A cleaning roller is rotatably mounted inside the treatment box, and multiple sets of arc-shaped scrapers are evenly arranged in a circular array on the cleaning roller. The bottom of each arc-shaped scraper contacts the bottom side of the arc-shaped filter plate. A support is provided on the outer wall of the treatment box, and a rotary motor is mounted on the support. The output end of the rotary motor passes through the treatment box and is connected to the cleaning roller.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: When the above-mentioned device is in use, the cleaning roller and the arc-shaped scraper clean the garbage in the sewage to the outside of the treatment tank. During this process, the opening is opened by moving the sealing plate to discharge the garbage. During this process, sewage filtration and garbage discharge cannot be carried out at the same time. If they are carried out at the same time, sewage will be discharged through the opening, thereby reducing the work efficiency of the staff. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a wastewater pretreatment device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sewage pretreatment device, including a treatment box with an open top, an inlet pipe installed on the side wall of the treatment box, an outlet pipe installed on the side wall of the treatment box away from the inlet pipe, a filter screen fixedly installed on the inner wall of the treatment box, and a cleaning device for cleaning up the garbage inside the treatment box.

[0007] By adopting the above technical solution, when workers need to treat wastewater, the wastewater enters the treatment tank through the inlet pipe, where the filter screen filters out large impurities (garbage bags, leaves, etc.). The filtered wastewater is then discharged outside the treatment tank through the outlet pipe for the next process. When workers need to clean large impurities, they use cleaning equipment to remove them. During this process, workers can clean large impurities while the wastewater is being filtered, thus improving work efficiency.

[0008] Furthermore, the cleaning device includes two support members fixedly installed on the bottom wall of the processing box. Each of the two support members has a sliding groove on its side wall close to each other. The inner wall of the sliding groove has an arc-shaped groove. The cleaning device also includes two sliding members respectively slidably installed in the two sliding grooves, two rotating members respectively rotatably installed in the two arc-shaped grooves, and a funnel fixedly installed on the side wall close to each other of the two arc-shaped members. The rotating members are slidably connected to the sliding grooves, and the sliding members are rotatably connected to the funnels.

[0009] By adopting the above technical solution, when workers need to clean up the garbage, they need to pull the funnel upwards, which in turn moves the funnel, sliding parts, and rotating parts upwards. During this process, when the sliding parts abut against the inner top wall of the trough, the rotating parts are aligned with the arc-shaped groove, causing the rotating parts to rotate within the arc-shaped groove. This causes the funnel to rotate under the action of the rotating parts, thereby allowing the funnel to scoop out large debris from the processing box and empty it. In this process, workers can clean up large impurities during the sewage filtration process, thus improving the work efficiency of the workers.

[0010] Furthermore, two rotating seats are fixedly installed on the upper surface of the funnel, and a rotating rod is rotatably installed on the side walls of the two rotating seats that are close to each other. A support plate is fixedly installed on the upper surface of one of the support members, and a motor is fixedly installed on the upper surface of the support plate. A rocker arm is fixedly installed at the end of the motor output shaft, and a connecting rod is rotatably installed at the end of the rocker arm away from the motor output shaft. The end of the connecting rod away from the rocker arm is fixed to the rotating rod.

[0011] By adopting the above technical solution, when the staff needs to pull the funnel upward, the staff needs to start the motor, which will cause the motor output shaft to rotate. This will cause the rocker arm to rotate under the action of the motor output shaft, and then the connecting rod and the funnel will move upward under the action of the rocker arm (in this process, the connecting rod and the rocker arm rotate relative to each other, and the rotating rod and the rotating seat rotate relative to each other). In this process, when the motor output shaft rotates one revolution, the funnel completes the emptying of garbage and re-enters the processing box, thereby reducing the difficulty for the staff to move the funnel and thus reducing the difficulty of the staff's work.

[0012] Furthermore, a limiting rod is installed on the end of the connecting rod away from the rotating rod and the end of the rocker arm away from the motor output shaft. The limiting rod passes through the connecting rod and the rocker arm and is rotatably connected to the connecting rod and the rocker arm. Two limiting members are threadedly connected to the outer wall of the limiting rod. The side walls of the two limiting members that are close to each other abut against the side walls of the rocker arm and the connecting rod that are far from each other.

[0013] By adopting the above technical solution, when the connecting rod and the rocker rotate relative to each other, the rocker and the connecting rod and the limiting rod rotate relative to each other. During this process, the limiting component limits the connecting rod and the rocker, thereby reducing the probability of the connecting rod and the rocker separating from the limiting rod, thus improving the stability of the device.

[0014] Furthermore, rotating grooves are provided on both opposite side walls of the funnel, and the two sliding members are rotatably connected to the adjacent rotating grooves respectively.

[0015] Furthermore, an annular groove is fixedly provided on the inner wall of the rotating groove, and an annular block is rotatably provided in the annular groove, the annular block being fixed to the sliding member.

[0016] By adopting the above technical solution, when the rotating part is directly opposite the arc-shaped groove, the rotating part rotates within the arc-shaped groove, thereby causing the funnel to rotate under the action of the rotating part. During this process, the sliding part rotates relative to the rotating groove, thereby causing the annular block to rotate under the action of the sliding part. In this process, the annular block reduces the probability of the sliding part and the rotating groove separating from each other, thereby improving the stability of the device.

[0017] Furthermore, both of the rotating seats are provided with rotary seals.

[0018] By adopting the above technical solution, the rotary seal reduces the probability of water entering the rotating seat, thereby improving the sealing performance of the device.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. In this application, when workers need to treat wastewater, the wastewater enters the treatment tank through the inlet pipe, where a filter screen filters out large impurities (garbage bags, leaves, etc.). The filtered wastewater is then discharged outside the treatment tank through the outlet pipe for the next process. When workers need to clean large impurities, they use cleaning equipment to remove them. During this process, workers can clean large impurities while the wastewater is being filtered, thus improving their work efficiency.

[0021] 2. In this application, when the staff needs to clean up the garbage, the staff needs to pull the funnel upward, which will cause the funnel, sliding part and rotating part to move upward. During this process, when the sliding part abuts against the inner top wall of the trough, the rotating part is aligned with the arc groove, which will cause the rotating part to rotate in the arc groove. This will cause the funnel to rotate under the action of the rotating part, so that the funnel will scoop out large debris from the processing box and pour it out. During this process, the staff can clean up large impurities during the sewage filtration process, thereby improving the staff's work efficiency.

[0022] 3. In this application, when the worker needs to pull the funnel upward, the worker needs to start the motor, which will cause the motor output shaft to rotate, thereby causing the rocker arm to rotate under the action of the motor output shaft, and then causing the connecting rod and the funnel to move upward under the action of the rocker arm (in this process, the connecting rod and the rocker arm rotate relative to each other, and the rotating rod and the rotating seat rotate relative to each other). In this process, when the motor output shaft rotates one revolution, the funnel completes the emptying of garbage and re-enters the processing box, thereby reducing the difficulty for the worker to move the funnel, and thus reducing the difficulty of the worker's work. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the cleaning device in an embodiment of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the support member in an embodiment of this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of the funnel in an embodiment of this utility model.

[0027] In the diagram: 1. Treatment box; 11. Inlet pipe; 12. Outlet pipe; 13. Filter screen; 2. Cleaning equipment; 21. Support component; 22. Sliding component; 23. Rotating component; 24. Funnel; 3. Slide groove; 31. Arc groove; 4. Rotating seat; 41. Rotating rod; 42. Support plate; 43. Motor; 44. Rocker arm; 45. Connecting rod; 5. Limiting rod; 51. Limiting component; 6. Rotating groove; 7. Annular groove; 71. Annular block. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] like Figure 1-4 As shown in the illustration, this application discloses a wastewater pretreatment device, including a treatment tank 1, an inlet pipe 11, an outlet pipe 12, a filter screen 13, a cleaning device 2, a rotating base 4, a rotating rod 41, a support plate 42, a motor 43, a rocker arm 44, a connecting rod 45, a limiting rod 5, a limiting component 51, and an annular block 71. The treatment tank 1 is a cuboid structure with an open top. The inlet pipe 11 is installed on the side wall of the treatment tank 1, and the outlet pipe 12 is installed on the side wall of the treatment tank 1 away from the inlet pipe 11. The filter screen 13 is fixedly installed on the inner wall of the treatment tank 1 for filtering large impurities in the wastewater.

[0030] When wastewater needs to be treated, it enters the treatment tank 1 through the inlet pipe 11, where the filter screen 13 filters out large impurities (garbage bags, leaves, etc.). The filtered wastewater then exits the treatment tank 1 through the outlet pipe 12 for the next process. When large impurities need to be cleaned, the cleaning equipment 2 removes them. During this process, large impurities can be cleaned while the wastewater is being filtered, thus improving work efficiency.

[0031] The cleaning device 2 is installed inside the processing tank 1 and is used to clean the waste inside the processing tank 1. The cleaning device 2 includes a support member 21, a sliding member 22, a rotating member 23, and a funnel 24. Two support members 21 are provided and fixedly installed on the inner bottom wall of the processing tank 1. Each of the two support members 21 has a groove 3 on its adjacent sidewall, and an arc-shaped groove 31 is formed on the inner wall of the groove 3. Two sliding members 22 are provided and slidably installed in the two grooves 3 respectively. Two rotating members 23 are provided and rotatably installed in the two arc-shaped grooves 31 respectively. The rotating members 23 are slidably connected to the grooves 3. The funnel 24 is fixedly installed on the adjacent sidewall of the two arc-shaped members, and the sliding members 22 are rotatably connected to the funnel 24.

[0032] When workers need to clean up the garbage, they need to pull the funnel 24 upwards, which will cause the funnel 24, the sliding member 22, and the rotating member 23 to move upwards. During this process, when the sliding member 22 abuts against the inner top wall of the trough 3, the rotating member 23 is aligned with the arc-shaped groove 31, causing the rotating member 23 to rotate within the arc-shaped groove 31. This causes the funnel 24 to rotate under the action of the rotating member 23, thereby allowing the funnel 24 to scoop out large debris from the processing box 1 and empty it. During this process, workers can clean up large impurities during the sewage filtration process, thereby improving the efficiency of the workers.

[0033] Two rotating seats 4 are fixedly mounted on the upper surface of the funnel 24. A rotating rod 41 is a round rod with a horizontal axis, rotatably mounted on the sidewalls of the two rotating seats 4 that are close to each other. A support plate 42 is a rectangular plate structure, fixedly mounted on the upper surface of one of the support members 21. A motor 43 is fixedly mounted on the upper surface of the support plate 42, with its output shaft axis horizontal. A rocker arm 44 is fixedly mounted at the end of the motor 43's output shaft. A connecting rod 45 is rotatably mounted at the end of the rocker arm 44 away from the motor 43's output shaft, and the end of the connecting rod 45 away from the rocker arm 44 is fixed to the rotating rod 41.

[0034] When the worker needs to pull the funnel 24 upward, the worker needs to start the motor 43, which will cause the output shaft of the motor 43 to rotate. This will cause the rocker arm 44 to rotate under the action of the output shaft of the motor 43, and then the connecting rod 45 and the funnel 24 will move upward under the action of the rocker arm 44 (in this process, the connecting rod 45 and the rocker arm 44 rotate relative to each other, and the rotating rod 41 and the rotating seat 4 rotate relative to each other). In this process, when the output shaft of the motor 43 rotates one revolution, the funnel 24 completes the emptying of garbage and re-enters the processing box 1, thereby reducing the difficulty for the worker to move the funnel 24 and thus reducing the difficulty of the worker's work.

[0035] The limiting rod 5 is installed at the end of the connecting rod 45 away from the rotating rod 41 and at the end of the rocker arm 44 away from the output shaft of the motor 43. The limiting rod 5 passes through the connecting rod 45 and the rocker arm 44 and is rotatably connected to the connecting rod 45 and the rocker arm 44. Two limiting members 51 are provided and threadedly connected to the outer wall of the limiting rod 5. The side walls of the two limiting members 51 that are close to each other abut against the side walls of the rocker arm 44 and the connecting rod 45 that are far from each other.

[0036] When the connecting rod 45 and the rocker arm 44 rotate relative to each other, the rocker arm 44 and the connecting rod 45 rotate relative to the limiting rod 5. During this process, the limiting member 51 limits the connecting rod 45 and the rocker arm 44, thereby reducing the probability of the connecting rod 45 and the rocker arm 44 separating from the limiting rod 5, thus improving the stability of the device.

[0037] The funnel 24 has two opposite sidewalls with rotating grooves 6. Two sliding members 22 are rotatably connected to the adjacent rotating grooves 6. An annular groove 7 is fixedly provided on the inner wall of the rotating groove 6. An annular block 71 is rotatably disposed in the annular groove 7 and is fixed to the sliding member 22.

[0038] When the rotating member 23 is aligned with the arc-shaped groove 31, the rotating member 23 rotates within the arc-shaped groove 31, thereby causing the funnel 24 to rotate under the action of the rotating member 23. During this process, the sliding member 22 rotates relative to the rotating groove 6, thereby causing the annular block 71 to rotate under the action of the sliding member 22. During this process, the annular block 71 reduces the probability of the sliding member 22 and the rotating groove 6 separating from each other, thereby improving the stability of the device.

[0039] To improve the sealing performance of the device, rotary seals are installed on both rotating seats 4. The rotary seals reduce the probability of water entering the rotating seats 4, thereby improving the sealing performance of the device.

[0040] The operating principle of the wastewater pretreatment device in this embodiment is as follows: When workers need to treat wastewater, the wastewater enters the treatment tank 1 through the inlet pipe 11, where the filter screen 13 filters out large impurities (garbage bags, leaves, etc.). Subsequently, the filtered wastewater is discharged outside the treatment tank 1 through the outlet pipe 12 for the next process. When workers need to clean large impurities, they need to use the cleaning equipment 2 to clean the large garbage. During this process, workers can clean large impurities while the wastewater is being filtered, thereby improving the work efficiency of the workers.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sewage pretreatment device comprising a treatment tank (1) open at the upper end, characterized in that: The side wall of the processing box (1) is provided with an inlet pipe (11), the side wall of the processing box (1) away from the inlet pipe (11) is provided with an outlet pipe (12), the inner wall of the processing box (1) is fixedly provided with a filter screen (13), and the processing box (1) is provided with a cleaning device (2) for cleaning garbage in the processing box (1).

2. A sewage pretreatment device according to claim 1, characterized in that: The cleaning device (2) comprises two support members (21) fixedly arranged on the bottom wall of the processing box (1), two sliding grooves (3) are formed in the side walls of the two support members (21) close to each other, an arc-shaped groove (31) is formed in the inner wall of the sliding groove (3), the cleaning device (2) further comprises two sliding members (22) slidingly arranged in the two sliding grooves (3) respectively, two rotating members (23) rotatably arranged in the two arc-shaped grooves (31) respectively, and a funnel (24) fixedly arranged on the side walls of the two arc-shaped members close to each other, the rotating member (23) is in sliding connection with the sliding groove (3), and the sliding member (22) is in rotary connection with the funnel (24).

3. A sewage pretreatment device according to claim 2, characterized in that: The upper surface of the funnel (24) is fixedly provided with two rotating seats (4), the side walls of the two rotating seats (4) close to each other are jointly rotatably provided with a rotating rod (41), the upper surface of one of the support members (21) is fixedly provided with a support plate (42), the upper surface of the support plate (42) is fixedly provided with a motor (43), the output shaft end of the motor (43) is fixedly provided with a rocker (44), one end of the rocker (44) away from the output shaft of the motor (43) is rotatably provided with a connecting rod (45), and one end of the connecting rod (45) away from the rocker (44) is fixedly connected with the rotating rod (41).

4. A sewage pretreatment device according to claim 3, characterized in that: The other end of the connecting rod (45) away from the rotating rod (41) and the other end of the rocker (44) away from the output shaft of the motor (43) are jointly provided with a limiting rod (5), the limiting rod (5) penetrates through and is in rotary connection with the connecting rod (45) and the rocker (44), the outer wall of the limiting rod (5) is threadedly connected with two limiting members (51), and the side walls of the two limiting members (51) close to each other abut against the side walls of the rocker (44) and the connecting rod (45) away from each other respectively.

5. A sewage pretreatment device according to claim 2, characterized in that: The funnel (24) is provided with a rotating groove (6) on each of the two opposite side walls, and the two sliding members (22) are rotatably connected with the adjacent rotating grooves (6) respectively.

6. A sewage pretreatment device according to claim 5, characterised in that: The inner wall of the rotating groove (6) is fixedly provided with an annular groove (7), and the annular groove (7) is rotatably provided with an annular block (71), and the annular block (71) is fixedly connected with the sliding member (22).

7. A sewage pretreatment device as claimed in claim 3, characterized in that: Rotary sealing members are arranged on the two rotating seats (4).

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