Novel grating equipment for water treatment pump station

Abstract

The utility model discloses novel grating equipment for a water treatment pump station, and relates to the technical field of sewage treatment. The novel grid equipment for the water treatment pump station comprises a filter grid, a bearing track, a traction mechanism, a turnover mechanism, a tooth rake box and rake teeth, wherein the harrow teeth are connected to the left lower side of the tooth harrow box, main overturning shafts are arranged on the upper portions of the front side wall and the rear side wall of the tooth harrow box, and bearing plates are rotationally connected to the outer walls of the main overturning shafts through bearings. The tooth rake box only moves up and down and swings and turns over up and down on the right side of the filtering grid, and cannot cross the filtering grid in the process, so that garbage on the tooth rake box cannot be brought to the left side of the filtering grid, and when the garbage on the tooth rake box is cleaned, the tooth rake box is lifted up, and the garbage on the filtering grid is cleaned. Garbage on the tooth rake box is cleared away based on a clearing mechanism or in a manual clearing mode. The lifting movement of the tooth harrow box is limited by the bearing track, so that the tooth harrow box is relatively stable in lifting or overturning.

Description

A new type of bar screen device for water treatment pumping stations Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a novel bar screen device for water treatment pumping stations. Background Technology

[0002] Pump station bar screens, as a primary facility for protecting water pumps, are installed in all pump stations, and most pump stations are equipped with bar screen devices capable of automatically removing debris. Bar screen devices are categorized into sewage pump stations and stormwater pump stations; sewage bar screens and stormwater bar screens are different types, and different types of equipment present different problems.

[0003] The sewage pumping station uses a circulating chain rotary screen, which has a relatively small screen spacing (generally 15mm to 30mm) and is suitable for sewage pumping stations that mainly handle small amounts of waste. The stormwater pumping station uses a cable-stayed screen, which has a larger screen spacing (generally 70mm) and is suitable for stormwater pumping stations that handle a large amount of large waste.

[0004] Sewage pumping station (rotary screen): During the circulating rotary garbage collection process, some of the garbage collected by the rake may fall off. When the garbage falls to the back of the screen, it will enter the water pump, which may damage the water pump. When the rake rotates to the bottom, the garbage on the rake may be washed off by the water flow, pass through the screen and enter the water pump, which may also damage the water pump.

[0005] Rainwater pumping station (cable screen): The toothed rake is freely suspended when it is raised and lowered. After the toothed rake enters the water, it is balanced only by the upward pull of the steel wire rope and its own gap. During periods of high water flow, the water flow will cause the toothed rake to become unstable and shake, affecting the cleaning efficiency. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the shortcomings of the existing technology, this utility model provides a new type of bar screen device for water treatment pumping stations, which solves the problems mentioned above.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a novel bar screen device for water treatment pumping stations, comprising:

[0010] Filter screen, load-bearing track, traction mechanism, tilting mechanism, rake box, rake teeth;

[0011] The rake teeth are connected to the lower left side of the rake box. The upper part of the front and rear side walls of the rake box is provided with a main tilting shaft. The outer wall of the main tilting shaft is rotatably connected to a bearing plate through a bearing. The upper and lower ends of the outer wall of the bearing plate are provided with lifting points. The left side of the bearing plate is slidably connected to a tilting drive opening clamp. The upper surface of the rake box is provided with a tilting rod that is slidably inserted into the tilting drive opening clamp.

[0012] The traction mechanism is connected to the lifting point and is used to drive the lifting point and the toothed rake box to move up and down.

[0013] The flipping mechanism is connected to the flipping drive opening clamp and is used to drive the flipping drive opening clamp to move up and down relative to the support plate.

[0014] The filter screen is located on the left side of the rake box and is parallel to the support track.

[0015] Preferably, the front and rear side walls of the toothed rake box are rotatably connected to limit guide wheels via rotating shafts, and the limit guide wheels are located on the right side of the bearing track.

[0016] Preferably, the upper and lower sides of the outer wall of the bearing plate are rotatably connected to guide wheels, and the guide wheels are rolled and supported in the bearing track.

[0017] Preferably, two bearing seats are symmetrically arranged on the outer wall of the bearing plate, and each bearing seat has a sliding hole. A sliding rod is slidably inserted between the sliding holes of the two bearing seats, and the flip-drive opening clamp is fixedly connected to the middle of the outer wall of the sliding rod.

[0018] Preferably, the flipping drive opening clamp is provided with flipping limit blocks on both the upper and lower sides.

[0019] (III) Beneficial Effects

[0020] This utility model provides a novel bar screen device for water treatment pumping stations, which has at least the following advantages compared with the prior art:

[0021] In this solution, the rake box only moves up and down and swings and flips on the right side of the filter grid. It does not cross the filter grid during the process. Therefore, the garbage on the rake box will not be brought to the left side of the filter grid. When cleaning the garbage on the rake box, the rake box is raised. The garbage on the rake box is cleaned by the cleaning mechanism or by manual cleaning.

[0022] The lifting and moving of the rake box is limited by the load-bearing track, making the lifting and turning of the rake box relatively stable. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of this utility model;

[0024] Figure 2 is a schematic diagram of the upright structure of the toothed rake box of this utility model;

[0025] Figure 3 is a schematic diagram of the structure of the toothed rake box after it has been flipped horizontally.

[0026] In the diagram: 1. Rake box; 2. Rake teeth; 3. Limiting guide wheel; 4. Main tilting shaft; 5. Bearing plate; 6. Bearing seat; 7. Guide wheel; 8. Lifting point; 9. Slide rod; 10. Tilting drive opening clamp; 11. Tilting rod; 12. Tilting limit block; 13. Filter grid; 14. Bearing track. Detailed Implementation

[0027] 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.

[0028] Please refer to Figures 1-3. This utility model provides a technical solution: a new type of bar screen device for water treatment pumping stations, including: a filter bar 13, a bearing rail 14, a traction mechanism, a tilting mechanism, a toothed rake box 1, and rake teeth 2;

[0029] The rake teeth 2 are connected to the lower left side of the rake box 1. A main tilting shaft 4 is provided on the upper part of both the front and rear side walls of the rake box 1. A bearing plate 5 is rotatably connected to the outer wall of the main tilting shaft 4 via bearings. Lifting points 8 are provided at the upper and lower ends of the outer wall of the bearing plate 5. A tilting drive opening clamp 10 is slidably connected to the left side of the bearing plate 5. A tilting rod 11 is slidably inserted into the tilting drive opening clamp 10 on the upper surface of the rake box 1. The traction mechanism is connected to the lifting points 8 to drive the lifting points 8 and the rake box 1 to move up and down. The tilting mechanism is connected to the tilting drive opening clamp 10 to drive the tilting drive opening clamp 10 to move up and down relative to the bearing plate 5. The filter grid 13 is located on the left side of the rake box 1 and is parallel to the carrying rail 14. Limiting guide wheels 3 are rotatably connected to the right sides of both the front and rear side walls of the rake box 1 via rotating shafts. The limiting guide wheels 3 are located on the right side of the carrying rail 14. Guide wheels 7 are rotatably connected to the upper and lower sides of the outer wall of the support plate 5, and the guide wheels 7 are rolled and supported within the support track 14. Two support seats 6 are symmetrically arranged on the outer wall of the support plate 5. Each support seat 6 has a sliding hole, and a sliding rod 9 is slidably inserted between the sliding holes of the two support seats 6. The flip-drive opening clamp 10 is fixedly connected to the middle of the outer wall of the sliding rod 9. Flip-limiting blocks 12 are provided on both the upper and lower sides of the flip-drive opening clamp 10.

[0030] Analysis of the above: During installation, the supporting rails 14 are located on the front and rear sides of the rake box 1, and the guide wheels 7 on the front and rear sides of the rake box 1 are rotatably connected to the supporting rails 14 on the front and rear sides. The filter screen 13 is installed parallel to the supporting rails 14, with the upper ends of the filter screen 13 and the supporting rails 14 tilted to the left, and the right side being the water-facing surface. The upper and lower ends of the filter screen 13 and the supporting rails 14 are supported by a separate bracket (not shown in the figure), which stably installs the filter screen 13 and the supporting rails 14. The bottom end of the filter screen 13 touches the bottom, and the upper end is above the water surface, thus achieving comprehensive filtration of the flow.

[0031] Both the traction mechanism and the tilting mechanism are driven by conventional motors. The traction mechanism and the tilting mechanism are not shown in the figure. The following are examples of the structural forms of the traction mechanism and the tilting mechanism, as well as the method of traction for the toothed rake box 1:

[0032] The traction mechanism includes a traction motor mounted on the upper end of the bracket, sprockets at the upper and lower ends of two bearing rails 14, and a traction chain connected at both ends to the upper and lower lifting points 8. The upper and lower sprockets are driven by the traction chain. The output shaft of the traction motor is connected to the two sprockets at the upper end of the two bearing rails 14. When the output shaft of the traction motor rotates, the output shaft of the traction motor drives the lower sprocket to rotate based on the upper sprocket and the traction chain, and at the same time pulls the lifting point 8 and the toothed rake box 1 to rise or fall along the bearing rails 14.

[0033] The tilting mechanism adopts a similar structure to the traction mechanism (the traction chain and sprocket can also be replaced by belts and pulleys, which are existing conventional technologies and will not be elaborated here). When the traction mechanism drives the slide bar 9 and the tilting drive opening clamp 10 to rise and fall relative to the bearing plate 5, the left opening of the tilting drive opening clamp 10 pushes the tilting rod 11 to move. The tilting rod 11 drives the toothed rake box 1 to tilt around the main tilting shaft 4. When the toothed rake box 1 rotates clockwise until the rake teeth 2 contact the filter opening of the filter grid 13, the limit guide wheel 3 is set to contact the right side wall of the bearing track 14 at this time, and at the same time, the upper tilting limit block 12 is in contact with the upper bearing seat 6.

[0034] When it is necessary to scrape the garbage on the surface of the filter grid 13, the toothed rake box 1 is first lowered to the bottom of the carrying track 14. During this process, the flipping mechanism and the traction mechanism are driven synchronously (based on the existing technology, the two motors are driven synchronously), so that the toothed rake box 1 rotates counterclockwise. The flipping limit block 12 on the lower side just contacts the lower carrying seat 6 until the toothed rake box 1 is lowered to the bottom of the carrying track 14. During this process, the rake teeth 2 do not contact the filter grid 13.

[0035] Upon reaching the bottom, the traction mechanism stops working, and the tilting mechanism drives the rake box 1 to rotate clockwise until the upper tilting limit block 12 just contacts the upper support seat 6. At this time, the rake teeth 2 contact the filter opening of the filter grid 13. Then, the tilting mechanism and the traction mechanism drive the rake box 1 synchronously, so that the rake teeth 2 scrape the garbage filtered by the filter grid 13 from the lower side of the filter grid 13 upwards and scrape the garbage into the rake box 1. After the upper end exceeds the water surface, the garbage on the rake box is cleaned by the cleaning mechanism or by manual cleaning.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel bar screen device for water treatment pumping stations, characterized in that, include: The system comprises a filter grid (13), a support rail (14), a traction mechanism, a tilting mechanism, a rake box (1), and rake teeth (2). The rake teeth (2) are connected to the lower left side of the rake box (1). The upper part of the front and rear side walls of the rake box (1) is provided with a main tilting shaft (4). The outer wall of the main tilting shaft (4) is rotatably connected to a support plate (5) through a bearing. The upper and lower ends of the outer wall of the support plate (5) are provided with lifting points (8). The left side of the support plate (5) is slidably connected to a tilting drive opening clamp (10). The upper surface of the rake box (1) is provided with a tilting rod (11) that is slidably inserted into the tilting drive opening clamp (10). The traction mechanism is connected to the lifting points (8) to drive the lifting points (8) and the rake box (1) to move up and down. The flipping mechanism is connected to the flipping drive opening clamp (10) to drive the flipping drive opening clamp (10) to move up and down relative to the support plate (5); the filter grid (13) is located on the left side of the toothed rake box (1), and the filter grid (13) is parallel to the support track (14).

2. A novel bar screen device for a water treatment pumping station according to claim 1, characterized in that: The front and rear side walls of the toothed rake box (1) are rotatably connected to limit guide wheels (3) via rotating shafts, and the limit guide wheels (3) are located on the right side of the bearing track (14).

3. A novel bar screen device for a water treatment pumping station according to claim 1, characterized in that: The upper and lower sides of the outer wall of the bearing plate (5) are rotatably connected to guide wheels (7), and the guide wheels (7) are rolled and supported in the bearing track (14).

4. A novel bar screen device for a water treatment pumping station according to claim 1, characterized in that: Two bearing seats (6) are symmetrically arranged on the outer wall of the bearing plate (5). The bearing seats (6) are provided with sliding holes. A sliding rod (9) is slidably inserted between the sliding holes of the two bearing seats (6). The flip drive opening clamp (10) is fixedly connected to the middle of the outer wall of the sliding rod (9).

5. A novel bar screen device for a water treatment pumping station according to claim 4, characterized in that: The flip drive opening clamp (10) is provided with flip limit blocks (12) on both the upper and lower sides.

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