Chain mud scraper for sewage treatment

Abstract

The utility model discloses a chain mud scraper for sewage treatment. The chain mud scraper comprises an adjusting chain wheel, a driving chain wheel, a driven chain wheel and a chain, according to the chain mud scraper for sewage treatment, two driven chain wheels are symmetrically and rotationally installed on the two sides of the bottom of a water collecting tank, a driving chain wheel is rotationally installed on one side of the top of the water collecting tank, an adjusting chain wheel is movably installed on the other side of the top of the water collecting tank, and the adjusting chain wheel is rotationally connected into a rotating installation groove; the rotating mounting groove is slidably connected in the open groove, the open groove is fixedly connected in the water collecting groove, the tail end of the open groove is rotatably connected with an adjusting threaded rotating handle in a penetrating mode, the adjusting threaded rotating handle is in threaded connection with a threaded sleeve, and the threaded sleeve fixedly penetrates through the rotating mounting groove. Therefore, the threaded sleeve can push the rotary mounting groove to slide in the open groove, the position of the adjusting chain wheel is controlled, the tightness of the chain is adjusted, and the situation that transmission cannot be achieved due to looseness is avoided.

Description

Technical Field

[0001] This utility model relates to the field of sludge scraper technology, specifically a chain sludge scraper for sewage treatment. Background Technology

[0002] A sludge scraper is a machine used to remove sludge from river channels. It is used in large-diameter circular sedimentation tanks in urban sewage treatment plants, waterworks, and industrial wastewater treatment plants to remove sludge settled at the bottom of the tank and skim off scum from the surface. Among them, the non-metallic chain sludge scraper is a type of sludge scraper that can be used for skimming scum from the surface and scraping sludge from the bottom of rectangular primary and secondary sedimentation tanks.

[0003] Patent document CN215995726U discloses a non-metallic chain scraper for sewage treatment, including a water collection tank. A transmission mechanism is provided on the upper surface of the water collection tank, and a drive sprocket is located inside the tank. A toothed chain is provided on the side surface of the drive sprocket, and a first scraper plate, a second scraper plate, and a third scraper plate are fixedly connected to the side surface of the toothed chain. A first sensor and a second sensor are fixedly connected to the left and right inner sides of the water collection tank. Telescopic limiting plates are movably connected inside each of the first, second, and third scraper plates. This invention, by using a first, second, and third scraper plate to sequentially remove sludge of different depths, avoids excessive sludge pushing that could damage the scraper plates, thus improving their service life. The connecting rod and telescopic limiting plates reduce water resistance when the scraper moves in water, reducing energy consumption and improving the practicality of the device.

[0004] Although the existing technology can use three scraper blades of different lengths to scrape sludge, avoiding damage to the scraper blades due to excessive sludge and improving their service life, the non-metallic chain may become loose or tight during the operation of the scraper, affecting its use. Therefore, a new chain scraper for sewage treatment is proposed to optimize the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide a chain scraper for sewage treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A chain scraper for sewage treatment includes a collection tank. Two driven sprockets are symmetrically and rotatably mounted on both sides of the bottom of the collection tank. A driving sprocket is rotatably mounted on one side of the top of the collection tank, and an adjusting sprocket is movably mounted on the other side of the top of the collection tank. A chain is connected to the outer sides of the adjusting sprocket, the driving sprocket, and the driven sprockets. Scraper assemblies are evenly mounted on the chain links. The adjusting sprocket is rotatably connected in a rotating mounting groove, which is slidably connected in an open groove. The open groove is fixedly connected in the collection tank. An adjusting threaded handle is rotatably connected to the end of the open groove. A threaded sleeve is threadedly connected to the adjusting threaded handle and is fixedly connected through the rotating mounting groove.

[0008] As a further embodiment of this utility model: the side wall of the rotating mounting groove is symmetrically fixedly connected with a slider, and the side wall of the opening groove is symmetrically provided with a sliding groove, the slider is inserted into the sliding groove and slides in contact with the sliding groove.

[0009] As a further improvement of this utility model: a driving mechanism is provided above the active sprocket corresponding to the water collection tank. The driving mechanism includes a drive motor, an active wheel, a driven wheel, and a transmission chain.

[0010] As a further embodiment of this utility model: the drive motor is fixedly installed on the water collection tank, the drive wheel is fixedly connected to the output end of the drive motor, the driven wheel is fixedly connected to the drive sprocket and is concentrically arranged with the drive sprocket, and the transmission chain is sleeved on the outside of the drive wheel and the driven wheel and meshes with the drive wheel and the driven wheel for transmission.

[0011] As a further embodiment of this utility model: the scraper assembly includes a fixed seat, which is fixedly mounted on the chain. An extended scraper adapted to the fixed seat is slidably connected to the inner bottom of the fixed seat. A sliding cavity corresponding to and adapted to the extended scraper is opened on the fixed seat. A threaded rod is rotatably connected to the fixed seat. The threaded rod is inserted into the extended scraper and threadedly connected to the extended scraper. A threaded hole for the threaded rod to be inserted and threadedly connected is opened on the extended scraper.

[0012] As a further embodiment of this utility model: the top of the fixed seat is provided with an installation cavity corresponding to the top of the threaded rod. The top of the threaded rod is inserted into the installation cavity and fixedly connected to a worm gear. A worm gear is provided on the outer side of the worm gear and meshes with it for transmission. The worm gear is rotatably connected in the installation cavity. One end of the worm gear passes through the installation cavity and is fixedly connected to a handwheel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model adjusts the rotation of the threaded handle, thereby allowing the threaded sleeve to push the rotating mounting groove to slide within the open slot, thus controlling the position of the adjusting sprocket and adjusting the tension of the chain, preventing it from becoming loose and unable to transmit power.

[0015] 2. This utility model uses a handwheel to rotate the worm gear, which in turn drives the threaded rod to rotate, thereby driving the extended scraper to slide within the fixed seat. This allows for adjustment of the effective sludge scraping height of the scraper assembly, resulting in scraper assemblies of different heights. This facilitates the layering and removal of sludge, controls the load on each scraper assembly during sludge scraping, and prevents excessive stress on the scraper assembly from affecting its lifespan. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a chain scraper for sewage treatment.

[0017] Figure 2 This is a diagram showing the combination of the rotating mounting groove 7 and the open groove 8 in a chain scraper for sewage treatment.

[0018] Figure 3 This is a diagram illustrating the scraper assembly in a chain scraper for wastewater treatment.

[0019] In the diagram: 1. Water collection tank; 2. Driven sprocket; 3. Driven sprocket; 4. Adjusting sprocket; 5. Chain; 6. Scraper assembly; 7. Rotary mounting slot; 8. Opening slot; 9. Adjusting threaded handle; 10. Threaded sleeve; 11. Slider; 12. Slide groove; 13. Drive mechanism; 14. Drive motor; 15. Drive wheel; 16. Driven wheel; 17. Transmission chain; 18. Fixed base; 19. Extended scraper; 20. Threaded rod; 21. Mounting cavity; 22. Worm gear; 23. Worm; 24. Handwheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3In this embodiment of the present invention, a chain scraper for sewage treatment includes a water collection tank 1. Two driven sprockets 2 are symmetrically and rotatably mounted on both sides of the bottom of the water collection tank 1. A driving sprocket 3 is rotatably mounted on one side of the top of the water collection tank 1. An adjusting sprocket 4 is movably mounted on the other side of the top of the water collection tank 1. A chain 5 is connected to the outer sides of the adjusting sprocket 4, the driving sprocket 3, and the driven sprockets 2. Scraper assemblies 6 are evenly mounted on the chain segments of the chain 5. The adjusting sprocket 4 is rotatably connected in a rotating mounting groove 7. The rotating mounting groove 7 is slidably connected in an open groove 8. The open groove 8 is fixedly connected in the water collection tank 1. An adjusting threaded handle 9 is rotatably and penetratingly connected to the tail end of the open groove 8. A threaded sleeve 10 is threadedly connected to the adjusting threaded handle 9. The threaded sleeve 10 is fixedly penetrating the rotating mounting groove 7.

[0022] By adjusting the rotation of the threaded handle 9, the threaded sleeve 10 can push the rotating mounting groove 7 to slide within the opening groove 8, thereby controlling the position of the adjusting sprocket 4 and adjusting the tension of the chain 5 to prevent it from becoming loose and unable to transmit power.

[0023] The side wall of the rotating mounting groove 7 is symmetrically fixed with sliders 11, and the side wall of the opening groove 8 is symmetrically provided with sliding grooves 12. The sliders 11 are inserted into the sliding grooves 12 and slide in contact with the sliding grooves 12.

[0024] The sliding of the rotating mounting groove 7 within the opening groove 8 can be guided and limited by the cooperation of the slider 11 and the groove 12.

[0025] A drive mechanism 13 is provided above the water collection tank 1 corresponding to the drive sprocket 3. The drive mechanism 13 includes a drive motor 14, a drive wheel 15, a driven wheel 16, and a transmission chain 17.

[0026] The drive motor 14 is fixedly installed on the water collection tank 1. The drive motor 14 is externally connected to a power supply and a switch. The drive wheel 15 is fixedly connected to the output end of the drive motor 14. The driven wheel 16 is fixedly connected to the drive sprocket 3 and is concentrically arranged with the drive sprocket 3. The transmission chain 17 is sleeved on the outside of the drive wheel 15 and the driven wheel 16 and meshes with the drive wheel 15 and the driven wheel 16 for transmission.

[0027] Driven by the drive motor 14, the drive sprocket 3 can be driven to rotate under the transmission cooperation of the drive wheel 15, the driven wheel 16 and the transmission chain 17. Then, under the cooperation of the adjusting sprocket 4, the drive sprocket 3 and the driven sprocket 2, the chain 5 is driven to run, so that the scraper assembly 6 is driven to work.

[0028] The scraper assembly 6 includes a fixed seat 18, which is fixedly mounted on the chain 5. An extension scraper 19 adapted to the fixed seat 18 is slidably connected to the bottom inner side of the fixed seat 18. The fixed seat 18 has a sliding cavity that corresponds to and is adapted to the extension scraper 19. A threaded rod 20 is rotatably connected to the fixed seat 18. The threaded rod 20 is inserted into the extension scraper 19 and threadedly connected to the extension scraper 19. The extension scraper 19 has a threaded hole for the threaded rod 20 to be inserted and threadedly connected.

[0029] The top of the fixed base 18 is provided with a mounting cavity 21 corresponding to the top of the threaded rod 20. The top of the threaded rod 20 is inserted into the mounting cavity 21 and is fixedly connected to a worm gear 22. The outer side of the worm gear 22 is provided with a worm 23 that meshes with it for transmission. The worm 23 is rotatably connected in the mounting cavity 21. One end of the worm 23 extends out of the mounting cavity 21 and is fixedly connected to a handwheel 24.

[0030] Rotating the worm gear 23 via the handwheel 24 drives the threaded rod 20 to rotate through the worm wheel 22, thereby driving the extended scraper 19 to slide within the fixed seat 18. This adjusts the effective sludge scraping height of the scraper assembly 6, resulting in scraper assemblies 6 at different heights. This facilitates the layering and removal of sludge, controls the load on each scraper assembly 6 during sludge scraping, and prevents excessive stress on the scraper assembly 6 from affecting its lifespan.

[0031] The working principle of this utility model is as follows:

[0032] In use, the worm gear 23 is rotated by the handwheel 24, which drives the threaded rod 20 to rotate through the worm wheel 22. The threaded rod 20 engages with the threaded hole on the extended scraper 19, which drives the extended scraper 19 to slide within the fixed seat 18, thereby adjusting the effective sludge scraping height of the scraper assembly 6. By adjusting the rotation of the threaded handle 9, the threaded sleeve 10 pushes the rotating mounting groove 7 to slide within the opening groove 8, thereby controlling the position of the adjusting sprocket 4 and adjusting the tension of the chain 5. Driven by the drive motor 14, the drive sprocket 3 is driven to rotate through the transmission of the drive wheel 15, driven wheel 16, and transmission chain 17. This, in turn, drives the chain 5 to run through the cooperation of the adjusting sprocket 4, drive sprocket 3, and driven sprocket 2, thus enabling the scraper assembly 6 to operate.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chain scraper for wastewater treatment, comprising a water collection tank (1), characterized in that: Two driven sprockets (2) are symmetrically and rotatably installed on both sides of the bottom of the water collection tank (1). A driving sprocket (3) is rotatably installed on one side of the top of the water collection tank (1). An adjusting sprocket (4) is movably installed on the other side of the top of the water collection tank (1). A chain (5) is connected to the outer side of the adjusting sprocket (4), the driving sprocket (3) and the driven sprocket (2). Scraper assemblies (6) are evenly installed on the chain segments of the chain (5). The adjusting sprocket (4) is rotatably connected in the rotating mounting groove (7). The rotating mounting groove (7) is slidably connected in the opening groove (8). The opening groove (8) is fixedly connected in the water collection tank (1). An adjusting threaded handle (9) is rotatably connected to the tail end of the opening groove (8). A threaded sleeve (10) is threadedly connected to the adjusting threaded handle (9). The threaded sleeve (10) is fixedly connected through the rotating mounting groove (7).

2. The chain scraper for sewage treatment according to claim 1, characterized in that: The rotating mounting groove (7) is symmetrically fixedly connected with a slider (11) on its side wall, and the opening groove (8) is symmetrically provided with a sliding groove (12) on its side wall. The slider (11) is inserted into the sliding groove (12) and slides in contact with the sliding groove (12).

3. The chain scraper for sewage treatment according to claim 1, characterized in that: The water collection tank (1) is provided with a drive mechanism (13) above the drive sprocket (3). The drive mechanism (13) includes a drive motor (14), a drive wheel (15), a driven wheel (16), and a transmission chain (17).

4. A chain scraper for wastewater treatment according to claim 3, characterized in that: The drive motor (14) is fixedly installed on the water collection tank (1), the drive wheel (15) is fixedly connected to the output end of the drive motor (14), the driven wheel (16) is fixedly connected to the drive sprocket (3) and is concentrically arranged with the drive sprocket (3), and the transmission chain (17) is sleeved on the outside of the drive wheel (15) and the driven wheel (16) and meshes with the drive wheel (15) and the driven wheel (16) for transmission.

5. A chain scraper for wastewater treatment according to claim 1, characterized in that: The scraper assembly (6) includes a fixed seat (18), which is fixedly mounted on the chain (5). An extension scraper (19) adapted to the fixed seat (18) is slidably connected to the bottom inner side of the fixed seat (18). A threaded rod (20) is rotatably connected to the fixed seat (18). The threaded rod (20) is inserted into the extension scraper (19) and threadedly connected to the extension scraper (19).

6. A chain scraper for wastewater treatment according to claim 5, characterized in that: The top of the fixed base (18) is provided with a mounting cavity (21) corresponding to the top of the threaded rod (20). The top of the threaded rod (20) is inserted into the mounting cavity (21) and is fixedly connected to a worm wheel (22). The outer side of the worm wheel (22) is provided with a worm (23) that meshes with it for transmission. The worm (23) is rotatably connected in the mounting cavity (21). One end of the worm (23) passes out of the mounting cavity (21) and is fixedly connected to a handwheel (24).

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