Improved structure of a drag grid cleaner rake

Abstract

This utility model belongs to the field of waste removal, especially the improved structure of the rake bucket of a waste removal machine. This utility model provides an improved structure of the rake bucket for a traction bar waste removal machine, including a rake bucket (1), a first rake tooth (2), two side bucket walls (3), and a connecting hole (4) at the top. Its characteristic is that a second rake tooth (5) is fixed to the front end of the first rake tooth (2), and the teeth (51) of the second rake tooth are perpendicular to the first rake tooth (2). Using this structure, garbage and rags wrapped around the waste removal grid can be scraped out, while also ensuring that the garbage and rags do not slide down when the rake bucket 1 rises. The second rake tooth 5 is fixed to the first rake tooth 2 by bolts, making installation and maintenance simple and reducing costs.

Description

Technical Field

[0001] This utility model belongs to the field of pollution removal, and in particular to the improved structure of the rake bucket of a pollution removal machine. Background Technology

[0002] In the wastewater treatment industry, bar screens are mainly used to remove garbage and rags from the surface of wastewater. For example... Figure 1 As shown, the rake teeth of existing bar screen cleaning machines are arc-shaped. Garbage and rags become entangled on the bar screen bars. Each time the rake is closed, the rake teeth insert into the bar screen, preventing the garbage and rags from being scraped out. Even after the rake is closed, when the bucket is pulled upwards, garbage and rags may slip down between the rake teeth and the bar screen. Summary of the Invention

[0003] This utility model proposes an improved structure for the rake bucket of a traction bar screen cleaner. By improving the angle between the rake teeth and the screen after the rake is closed and the sharpness of the front end of the rake teeth, the defects of garbage and cloth strips not being scraped out or slipping down are avoided.

[0004] To solve the above problems, this utility model provides an improved structure for the rake bucket of a traction bar screen cleaner, including a rake bucket, a first rake tooth, and connecting holes at the top of the two sides of the bucket wall. The feature is that a second rake tooth is fixed at the front end of the first rake tooth, and the teeth of the second rake tooth are perpendicular to the first rake tooth.

[0005] The improved structure of the rake bucket of the traction bar screen cleaner is characterized in that: the longitudinal section of the upper half of the teeth is trapezoidal, and the upper side is 1 / 4 of the lower side.

[0006] An improved structure of a traction bar screen cleaning machine rake bucket is characterized in that: the second rake tooth includes a base plate and a tooth plate, the tooth plate is "L" shaped, one end face of the tooth plate is provided with a tooth plate screw hole, one end of the other end face is provided with the tooth, and the base plate is provided with a base plate screw hole corresponding to the tooth plate screw hole.

[0007] An improved structure of the rake bucket of a traction bar screen cleaner is characterized in that: the bottom plate is located on the lower end face of the first rake tooth, the tooth plate is located on the upper end face of the first rake tooth, and bolts pass through the screw holes of the tooth plate, the gap between the two teeth of the first rake tooth, and the screw holes of the bottom plate to fix the second rake tooth to the front end of the first rake tooth.

[0008] An improved structure of the rake bucket of a traction bar screen cleaner is characterized in that: the second rake tooth is "L" shaped, one end face of the second rake tooth is provided with a screw hole, and one end face of the other end is provided with the tooth, and correspondingly, the first rake tooth is provided with a tooth screw hole, and the second rake tooth is fixed to the front end of the upper end face of the first rake tooth by bolts.

[0009] An improved structure of the rake bucket of a traction bar screen cleaner is characterized in that: the second rake teeth have three, and the sum of their lengths when connected end to end is the length of the rake bucket.

[0010] An improved structure of the rake bucket of a traction bar screen cleaner is characterized in that: the second rake teeth have three, and the sum of their lengths when connected end to end is the length of the rake bucket.

[0011] With the above structure, when the rake is closed, the angle between the teeth 51 and the trash rack is between 100 degrees and 130 degrees, which can scrape off the garbage and rags wrapped around the trash rack, while also ensuring that the garbage and rags do not slide down when the rake bucket 1 rises. The second rake tooth 5 is fixed to the first rake tooth 2 with bolts, which makes installation and maintenance simple and reduces costs. Attached Figure Description

[0012] Figure 1 : Schematic diagram of the existing traction bar screen cleaning machine.

[0013] Figure 2 This utility model presents an improved structural diagram of the rake bucket of a traction bar screen cleaner.

[0014] Figure 3 : Schematic diagram of the second rake tooth structure of this utility model.

[0015] Figure 4 This utility model presents a second structural schematic diagram of the rake bucket of a traction bar screen cleaner.

[0016] Figure 5 : Schematic diagram of the improved structure of the rake bucket of the traction bar screen cleaner.

[0017] Figure 6 : Figure 5 Enlarged view at point A. Detailed Implementation

[0018] The improved structure of the rake bucket of the traction bar screen cleaner according to this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, an improved structure of the rake bucket of a traction bar screen includes a rake bucket 1, first rake teeth 2, two side bucket walls 3, and a connecting hole 4 at the top. The rake bucket 1 is installed on the guide rails 7 on the left and right sides of the screen 6 through the connecting holes 4. A traction hole 8 is provided at the top of the front wall of the rake bucket 1, through which a rake bucket traction rope 9 is threaded. Guide rail traction ropes 10 are threaded on the two guide rails 7. The guide rail traction ropes 10 pull the rake bucket 1 towards the upper end of the screen 6, and the rake bucket traction ropes 9 pull the rake bucket 1 to perform rake closing and rake opening operations. A second rake tooth 5 is fixed to the front end of the first rake tooth 2, and the teeth 51 of the second rake tooth are perpendicular to the first rake tooth 2.

[0020] The upper part of the tooth 51 has a trapezoidal longitudinal section, with the upper side being 1 / 4 of the lower side. This design makes the upper end of the tooth 51 sharp, so that it can scrape out the garbage and strips of cloth wrapped around the trash rack each time the rake is closed.

[0021] The second rake tooth 5 includes a base plate 52 and a toothed plate 53. The toothed plate 53 is L-shaped, with a toothed plate screw hole on one end face and teeth 51 on one end face of the other end face. The base plate 52 has a base plate screw hole corresponding to the toothed plate screw hole.

[0022] When installing the second rake tooth 5, the base plate 52 is placed on the lower end face of the first rake tooth 2, and the tooth plate 53 is placed on the upper end face of the first rake tooth 2. The bolt passes through the screw hole of the tooth plate, the gap between the two teeth of the first rake tooth 2, and the screw hole of the base plate to fix the second rake tooth 5 to the front end of the first rake tooth 2.

[0023] The second rake tooth 5 is designed this way for easy installation on existing rake buckets. Replacing a rake bucket is relatively expensive, while installing a second rake tooth 5 is much cheaper. The installation process is also simpler. There can be one second rake tooth 5, the length of which is the same as the length of the rake bucket 1. There can also be multiple second rake teeth 5, such as three or four. Regardless of the number, the sum of the lengths of the two teeth 5 connected end-to-end is the length of the rake bucket 1. This design facilitates maintenance and reduces the risk of failure.

[0024] When the scraper bucket 1 is in operation, when it is at a high position, the scraper bucket traction rope 9 is tightened to open the scraper bucket 1. The scraper bucket 1 is then slowly lowered into the sewage via the guide rail traction rope 10. Next, the scraper bucket traction rope 9 is loosened to close the scraper bucket 1. Then, the guide rail traction rope 10 is tightened to slowly raise the scraper bucket 1. When the scraper bucket 1 is closed, the angle between the teeth 51 and the trash rack is between 100 and 130 degrees, which can scrape off the garbage and rags wrapped around the trash rack, while also ensuring that the garbage and rags do not slide down as the scraper bucket 1 rises. The optimal angle between the teeth 51 and the trash rack is 115 degrees. Figure 6 The angle between the teeth and the dirt rack is shown, which is 112 degrees.

[0025] The second rake tooth 5 can also be designed on a plate surface, with an "L" shape. One end of the second rake tooth 5 has a screw hole, and the other end has a tooth 51. Correspondingly, the teeth of the first rake tooth 2 need to have tooth screw holes. The second rake tooth 5 is fixed to the front end of the upper end face of the first rake tooth 2 by bolts. However, this design requires tooth screw holes on the teeth of the first rake tooth 2, which makes installation inconvenient.

[0026] The preferred embodiments or specific implementations of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiments and implementations. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the concept of the present invention.

Claims

1. An improved structure of a rake bucket for a traction bar screen cleaner, comprising a rake bucket (1), first rake teeth (2), two side bucket walls (3), and a connecting hole (4) at the top, characterized in that: A second rake tooth (5) is fixed at the front end of the first rake tooth (2), and the teeth (51) of the second rake tooth (5) are perpendicular to the first rake tooth (2).

2. The improved structure of the rake bucket of a traction bar screen cleaner according to claim 1, characterized in that: The longitudinal section of the upper half of the tooth (51) is trapezoidal, with the upper side being 1 / 4 of the lower side.

3. An improved structure of the rake bucket of a traction bar screen as described in claim 1 or 2, characterized in that: The second rake tooth (5) includes a base plate (52) and a toothed plate (53). The toothed plate (53) is "L" shaped. One end face of the toothed plate (53) is provided with a toothed plate screw hole, and one end of the other end face is provided with the tooth (51). The base plate (52) is provided with a base plate screw hole corresponding to the toothed plate screw hole.

4. The improved structure of the rake bucket of a traction bar screen cleaner according to claim 3, characterized in that: The base plate (52) is located on the lower end face of the first rake tooth (2), and the tooth plate (53) is located on the upper end face of the first rake tooth (2). The bolt passes through the screw hole of the tooth plate, the gap between the two teeth of the first rake tooth (2), and the screw hole of the base plate to fix the second rake tooth (5) to the front end of the first rake tooth (2).

5. The improved structure of the rake bucket of a traction bar screen cleaner according to claim 1, characterized in that: The second rake tooth (5) is "L" shaped. One end face of the second rake tooth (5) is provided with a screw hole, and one end face of the other end face is provided with the tooth (51). Correspondingly, the first rake tooth (2) is provided with a tooth screw hole. The second rake tooth (5) is fixed to the front end of the upper end face of the first rake tooth (2) by bolts.

6. The improved structure of the rake bucket of a traction bar screen as described in claim 3, characterized in that: The second rake tooth (5) has three teeth, and the length of their head-to-tail connection is equal to the length of the rake bucket (1).

7. An improved structure of the rake bucket of a traction bar screen cleaner according to claim 5, characterized in that: The second rake tooth (5) has three teeth, and the length of their head-to-tail connection is equal to the length of the rake bucket (1).

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