Mechanical grille for sewage treatment

Abstract

The utility model discloses a mechanical grille for sewage treatment, including drum type grille body and servo motor, one end fixed intercommunication of drum type grille body has the fender, the outer wall of fender is equipped with four T type grooves, the inner wall of two T type grooves all slidingly connected with two first T type blocks, the inner wall of other two T type grooves all slidingly connected with second T type block, one end of first T type block, second T type block is fixedly connected with same extension plate. The utility model discloses through servo motor, second T type block, connecting frame, bidirectional screw rod, synchronous pulley and synchronous transmission belt, realize the automatic telescoping of extension plate, can adapt to the grille channel of different width, solved the problem of traditional fixed type grille and the clearance leakage between channel wall, the angle fine adjustment is realized to side plate through rotating adjusting component (threaded column + locking cap + axle body), further fits the channel wall, and the intercepting effect of drum type grille body is guaranteed by double sealing.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a mechanical bar for wastewater treatment. Background Technology

[0002] Mechanical bar screens are an important pretreatment device in wastewater treatment systems. They are mainly used to intercept and remove larger solid particles and floating debris, such as branches, plastic bags, fibers, and garbage, from wastewater. This protects downstream treatment equipment (such as pumps, pipes, and aerators) from blockage or damage and reduces the load on subsequent treatment processes. Mechanical bar screens are typically installed at the upstream end of a wastewater treatment plant, such as in a collection well or coarse screen channel.

[0003] In existing technologies, traditional rotary drum screens typically employ a fixed structural design, and their width cannot be flexibly adjusted. This makes it difficult for the contact surface between the screen and the channel wall to fully fit when facing screen channels of different widths. Especially in non-standard sized screen channels, gaps can easily cause sewage to leak from the sides, reducing the filtration effect and potentially affecting subsequent sewage treatment processes. Therefore, we propose a mechanical screen for sewage treatment to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mechanical bar for wastewater treatment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mechanical bar screen for wastewater treatment includes a rotary drum bar screen body and a servo motor. One end of the rotary drum bar screen body is fixedly connected to a baffle plate. The outer wall of the baffle plate has four T-slots. Two first T-blocks are slidably connected to the inner walls of two of the T-slots, and second T-blocks are slidably connected to the inner walls of the other two T-slots. One end of each of the first and second T-blocks is fixedly connected to the same extension plate. One end of each of the two second T-blocks is fixedly connected to a connecting frame. The outer walls of both connecting frames have threaded holes, and the inner walls of the two threaded holes are threaded with the same bidirectional lead screw. One end of the bidirectional lead screw and the outer wall of the servo motor output shaft are both fixedly fitted with synchronous pulleys. The outer walls of the two synchronous pulleys are meshed with the same synchronous transmission belt. The top of the extension plate is provided with a rotation adjustment assembly, and the outer walls of both extension plates are fixedly connected with sealing strips.

[0007] Preferably, the rotation adjustment assembly includes two threaded columns, the tops of the two extension plates are fixedly connected to the bottoms of the two threaded columns respectively, an adjustment rod is slidably sleeved on the outer wall of each of the two threaded columns, a locking cap is threadedly sleeved on the outer wall of each of the two threaded columns, a shaft is rotatably connected to the outer wall of the adjustment rod, and a side plate is hinged to the outer wall of each of the two extension plates. The bottom of the shaft is fixedly connected to the top of the side plate. By setting the rotation adjustment assembly, the rotation angle of the two side plates can be changed to meet the requirements of different width grid channels.

[0008] Preferably, the outer wall of the baffle plate is slidably connected to the outer walls of the two extension plates.

[0009] Preferably, the outer wall of the adjusting rod is provided with a strip groove, and the inner wall of the strip groove is slidably connected to the outer wall of the threaded column. The rotation angle of the adjusting rod can be adjusted by setting the strip groove.

[0010] Preferably, the outer wall of the locking cap is pressed against the outer wall of the adjusting rod, and the position of the adjusting rod and the side plate is fixed by setting the locking cap.

[0011] Preferably, bearings are fixedly fitted at both ends of the bidirectional lead screw, and the outer ring of the bearing is fixed to the wall of the bar screen channel by existing bolts.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution achieves automatic extension and retraction of the extension plate through a servo motor, a second T-block, a connecting frame, a two-way lead screw, a synchronous pulley, and a synchronous transmission belt. It can adapt to bar screen channels of different widths and solves the problem of leakage between traditional fixed bar screens and channel walls. The side plate achieves fine-tuning of angle through a rotating adjustment component (threaded column + locking nut + shaft) to further fit the channel wall. The double seal ensures the interception effect of the drum bar screen body. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a mechanical bar for sewage treatment proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of a mechanical bar for wastewater treatment proposed in this utility model;

[0017] Figure 3This utility model proposes a mechanical bar for sewage treatment. Figure 2 A magnified structural diagram of part A in the diagram.

[0018] In the diagram: 1. Rotary drum-type bar screen body; 2. Water baffle plate; 3. First T-block; 4. Extension plate; 5. Servo motor; 6. Second T-block; 7. Connecting frame; 8. Two-way lead screw; 9. Synchronous pulley; 10. Synchronous transmission belt; 11. Threaded column; 12. Adjusting rod; 13. Shaft; 14. Locking cap; 15. Sealing strip; 16. Side plate. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1-3 As shown, a mechanical bar screen for sewage treatment is disclosed, comprising a rotary drum bar screen body 1 and a servo motor 5. A baffle plate 2 is fixedly connected to one end of the rotary drum bar screen body 1. The outer wall of the baffle plate 2 is provided with four T-shaped grooves. Two first T-shaped blocks 3 are slidably connected to the inner walls of two T-shaped grooves. The outer wall of the baffle plate 2 is slidably connected to the outer walls of two extension plates 4. The inner walls of the other two T-shaped grooves are slidably connected to second T-shaped blocks 6. One end of the first T-shaped blocks 3 and the second T-shaped blocks 6 is fixedly connected to the same extension plate 4. The extension plate 4 moves linearly through the first T-shaped blocks 3 and the second T-shaped blocks 6.

[0021] Each of the two second T-blocks 6 has a connecting frame 7 fixedly connected to one end. The outer wall of each connecting frame 7 has a threaded hole. The inner wall of each threaded hole is threaded with the same bidirectional lead screw 8. Both ends of the bidirectional lead screw 8 are fixedly fitted with bearings. The two bearings assist the bidirectional lead screw 8 in rotating.

[0022] One end of the bidirectional lead screw 8 and the outer wall of the output shaft of the servo motor 5 are both fixedly fitted with synchronous pulleys 9. The outer walls of the two synchronous pulleys 9 are meshed with the same synchronous transmission belt 10. The servo motor 5 drives the bidirectional lead screw 8 to rotate through the synchronous pulleys 9 and the synchronous transmission belt 10 to realize the automatic adjustment of the extension plate 4. The outer walls of the two extension plates 4 are fixedly connected with sealing strips 15. The extension plates 4 are made of corrosion-resistant rubber or polyurethane material. After the extension plates 4 are unfolded, they fit tightly against the channel wall to prevent sewage leakage.

[0023] The top of the extension plate 4 is provided with a rotation adjustment assembly, which includes two threaded posts 11. The outer wall of the adjustment rod 12 is provided with a strip groove, and the inner wall of the strip groove is slidably connected to the outer wall of the threaded post 11. The tops of the two extension plates 4 are respectively fixedly connected to the bottoms of the two threaded posts 11. The outer walls of the two threaded posts 11 are slidably fitted with adjustment rods 12, and the outer walls of the two threaded posts 11 are threadedly fitted with locking caps 14. The side plate 16 is rotated and fixed by adjusting rods 12.

[0024] The outer wall of the locking cap 14 is pressed against the outer wall of the adjusting rod 12. The outer wall of the adjusting rod 12 is rotatably connected to the shaft 13. The adjusting rod 12 is sleeved on the outer wall of the shaft 13. The outer walls of the two extension plates 4 are hinged with side plates 16. The hinge position is located on the right side of the side plate 16. The bottom of the shaft 13 is fixedly connected to the top of the side plate 16.

[0025] Working principle: During use, the screen of the rotary drum screen body 1 is located inside the screen channel, while the servo motor 5 is fixed to the ground on the side of the screen channel. The spiral shaft and the discharge hole are tilted upwards, so that the water inlet is located on one side of the baffle plate 2, and the liquid level is not higher than the height of the baffle plate 2, allowing the sewage to be filtered through the screen. When dealing with screen channels of different widths, the servo motor 5 drives the connected synchronous pulley 9 to rotate, which in turn drives the synchronous transmission belt 10 to rotate. The synchronous transmission belt 10 drives another synchronous pulley 9 to rotate, which in turn drives the bidirectional lead screw 8 to rotate. The bidirectional lead screw 8 drives the two connecting frames 7 to enter the screen channel. The two connecting frames 7 move relative to each other, which in turn drives the two second T-blocks 6 to move relative to each other, thereby driving the two extension plates 4 to move relative to each other. The two extension plates 4 move outward and press against the inner wall of the bar screen channel. The baffle plate 2 and the extension plates 4 are installed on bar screen channels of different widths. The two locking caps 14 are rotated by the two threaded columns 11 to release the position fixation of the two adjusting rods 12. The two side plates 16 are rotated to fit against the inner walls of the two sides of the bar screen channel respectively. The two locking caps 14 are rotated again to press against the top of the two adjusting rods 12, and the position of the two side plates 16 is fixed. The two side plates 16 play a guiding role for sewage flow.

[0026] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0027] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical bar screen for wastewater treatment, comprising a rotary drum bar screen body (1) and a servo motor (5), characterized in that, One end of the rotary drum-type grid body (1) is fixedly connected to a baffle plate (2). The outer wall of the baffle plate (2) is provided with four T-shaped grooves. The inner walls of two T-shaped grooves are slidably connected to two first T-shaped blocks (3), and the inner walls of the other two T-shaped grooves are slidably connected to second T-shaped blocks (6). One end of the first T-shaped blocks (3) and the second T-shaped blocks (6) is fixedly connected to the same extension plate (4). One end of the two second T-shaped blocks (6) is fixedly connected to a connecting frame (7). The outer walls of the two connecting frames (7) are provided with threaded holes. The inner walls of the two threaded holes are threadedly connected to the same bidirectional screw (8). One end of the bidirectional screw (8) and the outer wall of the output shaft of the servo motor (5) are both fixedly fitted with synchronous pulleys (9). The outer walls of the two synchronous pulleys (9) are meshed with the same synchronous transmission belt (10). The top of the extension plate (4) is provided with a rotation adjustment component. The outer walls of the two extension plates (4) are fixedly connected to sealing strips (15).

2. The mechanical bar for wastewater treatment according to claim 1, characterized in that, The rotation adjustment assembly includes two threaded columns (11), the tops of two extension plates (4) are fixedly connected to the bottoms of the two threaded columns (11), the outer walls of the two threaded columns (11) are slidably fitted with adjustment rods (12), the outer walls of the two threaded columns (11) are threadedly fitted with locking caps (14), the outer walls of the adjustment rods (12) are rotatably connected with shafts (13), the outer walls of the two extension plates (4) are hinged with side plates (16), and the bottom of the shafts (13) is fixedly connected to the top of the side plates (16).

3. A mechanical bar for wastewater treatment according to claim 1, characterized in that, The outer wall of the baffle plate (2) is slidably connected to the outer walls of the two extension plates (4).

4. A mechanical bar for wastewater treatment according to claim 2, characterized in that, The outer wall of the adjusting rod (12) is provided with a strip groove, and the inner wall of the strip groove is slidably connected to the outer wall of the threaded column (11).

5. A mechanical bar for wastewater treatment according to claim 2, characterized in that, The outer wall of the locking cap (14) is pressed against the outer wall of the adjusting rod (12).

6. A mechanical bar for wastewater treatment according to claim 1, characterized in that, Both ends of the bidirectional lead screw (8) are fixedly fitted with bearings.

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