Grille machine for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a grillage machine for sewage treatment, which comprises a grillage machine main body and a mounting plate, a cleaning mechanism is arranged in the mounting plate, a top shell is mounted at the top of the grillage machine main body, and dismounting mechanisms are arranged on the front side and the rear side in the top shell; the cleaning mechanism comprises a motor, the exterior of the motor is fixedly connected to the interior of the mounting plate, the driving end of the motor is fixedly connected with a disc, the front end of the disc is fixedly connected with a convex rod, the inner wall of the mounting plate is slidably connected with a sliding hole plate, and the front side and the rear side of the sliding hole plate are fixedly connected with transmission plates. The motor serves as a power source to drive the disc to rotate, the blades are driven to move back and forth in a reciprocating mode through transmission of the protruding rod, the sliding hole plate, the transmission plate and the connecting plate, and the sharp cutting edges of the blades can accurately cut off fibrous sundries wound on the grating and rapidly remove blockages.

Description

Technical Field

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

[0002] Wastewater treatment refers to the process of separating, transforming, decomposing, and rendering harmless pollutants in wastewater using physical, chemical, and biological methods to meet national discharge or reuse standards. This process is crucial for protecting the ecological environment, rationally utilizing water resources, and safeguarding public health, and is an indispensable part of modern environmental governance and water resource recycling systems.

[0003] As a crucial pretreatment device in the wastewater treatment process, the bar screen is primarily used to intercept larger floating objects and suspended solids in wastewater, such as branches, plastics, and fibrous debris. If these impurities are not removed promptly, they can clog subsequent treatment equipment, affecting wastewater treatment efficiency and even causing equipment damage. The bar screen uses a grid of bars to trap debris in the wastewater, initially purifying it and creating favorable conditions for subsequent advanced treatment. It serves as the first line of defense for ensuring the stable operation of the wastewater treatment system and is closely linked to the overall effectiveness and smoothness of the treatment process.

[0004] In existing technologies, some bar screens for sewage treatment have many problems in practical applications. Faced with a large amount of fibrous debris in sewage, the traditional bar screen cleaning mechanism is difficult to effectively remove the debris wrapped around the screen, resulting in frequent screen blockage and short cleaning intervals. This not only increases the cost of manual cleaning but also seriously affects the efficiency of sewage treatment. Therefore, a bar screen for sewage treatment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a bar screen for sewage treatment, which aims to improve the problems of low efficiency in cleaning fibrous debris, easy clogging of the bar screen, high manual cleaning cost, and limited sewage treatment efficiency of traditional bar screens in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bar screen for sewage treatment includes a bar screen body and an mounting plate. The mounting plate is provided with a cleaning mechanism inside. A top shell is installed on the top of the bar screen body. Disassembly and assembly mechanisms are provided on both the front and rear sides of the top shell.

[0008] The cleaning mechanism includes a motor, which is externally fixedly connected to the inside of the mounting plate. A disc is fixedly connected to the drive end of the motor, and a protruding rod is fixedly connected to the front end of the disc. A sliding hole plate is slidably connected to the inner wall of the mounting plate. Transmission plates are fixedly connected to both the front and rear sides of the sliding hole plate. A connecting plate is fixedly connected to the bottom end of the transmission plate, and a blade is fixedly connected to the bottom end of the connecting plate.

[0009] As a further description of the above technical solution:

[0010] The top shell has sliding grooves on both the front and rear sides, and the outer wall of the mounting plate is slidably connected to the inner wall of the two sliding grooves.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the mounting plate is fixedly connected to multiple limiting blocks, and the outer wall of the transmission plate is slidably connected to two adjacent sides of the limiting blocks.

[0013] As a further description of the above technical solution:

[0014] The outer walls of the plurality of connecting plates are slidably connected to the inner wall of the mounting plate, and the outer wall of the protruding rod is slidably connected to the inner wall of the sliding hole plate;

[0015] As a further description of the above technical solution:

[0016] The disassembly and assembly mechanism includes a sliding plate, a locking block is fixedly connected to the left side of the sliding plate, two sliding rods are fixedly connected to the right side of the sliding plate, a return spring is sleeved on the outside of the sliding rod, a compression spring plate is fixedly connected to the outer wall of the two sliding rods, and a pull plate is fixedly connected to the right side of the two sliding rods.

[0017] As a further description of the above technical solution:

[0018] The mounting plate has slots on both the front and rear sides. The inner wall of the slots engages with the outer wall of the card block. A pad is fixedly connected to the left side of the sliding plate. The top sides of the two pads are in contact with the bottom side of the mounting plate.

[0019] As a further description of the above technical solution:

[0020] The outer walls of the two sliding rods are slidably connected to the inner wall of the top shell, and the left sides of the two pull plates are in contact with the right side of the top shell;

[0021] As a further description of the above technical solution:

[0022] The outer wall of the compression spring plate is slidably connected to the inner wall of the top shell, the left side of the two return springs is fixedly connected to the right side of the compression spring plate, and the right side of the two return springs is fixedly connected to the right inner wall of the top shell.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the motor drives the disc to rotate as a power source. Through the transmission of the convex rod, sliding plate, transmission plate and connecting plate, the blade moves back and forth. Its sharp edge can accurately cut the fibrous debris wrapped on the screen and quickly remove the blockage. Compared with traditional screen machines, it does not require frequent manual cleaning, which greatly improves the cleaning efficiency, ensures that the screen is unobstructed, and allows sewage to pass through smoothly. This ensures the continuity and efficiency of sewage treatment and effectively improves sewage treatment efficiency.

[0025] 2. In this utility model, by pulling the pull plate, the sliding rod, sliding plate and locking block are driven to move, so that the locking block is disengaged from the slot of the mounting plate, and the mounting plate can be easily removed along the sliding groove. During installation, the elastic force of the return spring can automatically lock the locking block into the slot to complete the fixation. This design makes it convenient for workers to inspect, replace and maintain vulnerable parts such as blades, reducing maintenance time and difficulty. At the same time, it reduces downtime caused by maintenance, reduces labor costs and equipment wear, and significantly reduces the overall maintenance cost of the bar screen. Attached Figure Description

[0026] Figure 1 This is a perspective view of a bar screen for wastewater treatment proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the top shell of a bar screen for sewage treatment proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Main body of the bar screen machine; 2. Top shell; 3. Sliding groove; 4. Mounting plate; 5. Motor; 6. Disc; 7. Protruding rod; 8. Sliding hole plate; 9. Transmission plate; 10. Limiting block; 11. Connecting plate; 12. Blade; 13. Sliding plate; 14. Locking block; 15. Pad block; 16. Sliding rod; 17. Pull plate; 18. Compression spring plate; 19. Return spring; 20. Locking groove. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a bar screen for sewage treatment, including a bar screen body 1 and a mounting plate 4. Sliding grooves 3 are provided on both the front and rear sides of the top shell 2. The outer wall of the mounting plate 4 is slidably connected to the inner walls of the two sliding grooves 3. The bar screen body 1 serves as the basic load-bearing structure of the entire bar screen, providing an installation support platform for components such as the top shell 2 and mounting plate 4, firmly connecting the various components, ensuring the overall structural stability of the bar screen, and enabling the various components to work collaboratively during sewage treatment. It is the core carrier through which sewage flows and is used for impurity interception. A cleaning mechanism is provided inside the mounting plate 4. The top shell 2 is installed on the top of the bar screen body 1. Disassembly and assembly mechanisms are provided on both the front and rear sides of the top shell 2. The sliding grooves 3 provide sliding tracks for the mounting plate 4, enabling the disassembly and assembly of the mounting plate 4. The top shell 2 provides installation space for the components of the disassembly and assembly mechanisms, protecting the internal structure from sewage erosion.

[0034] The cleaning mechanism includes a motor 5, which is externally and fixedly connected to the inside of the mounting plate 4. A disc 6 is fixedly connected to the drive end of the motor 5. The motor 5 serves as the power source for the cleaning mechanism, converting electrical energy into mechanical energy after being powered on, driving the disc 6 to rotate. A protruding rod 7 is fixedly connected to the front end of the disc 6. A sliding perforated plate 8 is slidably connected to the inner wall of the mounting plate 4. The outer wall of the protruding rod 7 is slidably connected to the inner wall of the sliding perforated plate 8. The disc 6 rotates under the drive of the motor 5, causing the protruding rod 7 to perform circular motion. Through the sliding connection between the protruding rod 7 and the sliding perforated plate 8, the circular motion is converted into the reciprocating motion of the sliding perforated plate 8. Transmission plates 9 are fixedly connected to both the front and rear sides of the sliding perforated plate 8. Multiple limit blocks 10 are fixedly connected to the inner wall of the mounting plate 4. The outer wall of the transmission plate 9 slides... The transmission plate 9 is connected to the two limit blocks 10 on the same side. The bottom end of the transmission plate 9 is fixedly connected to the connecting plate 11. The outer walls of the multiple connecting plates 11 are slidably connected to the inner wall of the mounting plate 4. The bottom end of the connecting plate 11 is fixedly connected to the blade 12. The transmission plate 9 connects the sliding hole plate 8 and the connecting plate 11, transmitting motion and power so that the blade 12 moves with the sliding hole plate 8. The limit block 10 limits the transmission plate 9 to prevent it from deviating during the movement, ensuring that the transmission plate 9 drives the blade 12 to make stable back-and-forth reciprocating motion, thereby improving cleaning efficiency. The blade 12, with its sharp cutting edge, cuts the fibrous debris wrapped around the grid in the back-and-forth reciprocating motion, separating the debris from the grid. It is the core execution component of the cleaning mechanism to realize the cleaning function.

[0035] Reference Figure 1 , Figure 2 and Figure 4The disassembly and assembly mechanism includes a sliding plate 13. A locking block 14 is fixedly connected to the left side of the sliding plate 13. Slots 20 are provided on both the front and rear sides of the mounting plate 4. The inner wall of the slots 20 engages with the outer wall of the locking block 14. Pads 15 are fixedly connected to the left side of the sliding plate 13. The top sides of the two pads 15 contact the bottom side of the mounting plate 4. The sliding plate 13 drives the locking block 14 to move. The locking block 14 cooperates with the slots 20 of the mounting plate 4 to achieve the fixing and disassembly of the mounting plate 4. The pads 15 support the mounting plate 4 to prevent it from shaking due to uneven force after installation, ensuring the stability of the mounting plate 4 after installation. Two sliding rods 16 are fixedly connected to the right side of the sliding plate 13. The outer walls of the two sliding rods 16 are slidably connected to the inner wall of the top shell 2. A return spring 19 is sleeved on the outside of the sliding rods 16. A compression spring plate 18 is fixedly connected to the outer walls of the two sliding rods 16. The outer walls of the compression spring plate 18 are slidably connected to... The sliding rod 16 is attached to the inner wall of the top shell 2, providing a guide for the sliding plate 13 to ensure its linear movement. The compression spring plate 18 compresses the return spring 19 to generate elastic force, which is stored when the pull plate 17 is pulled to remove the mounting plate 4. After the pull plate 17 is released, the return spring 19 releases the elastic force to push the sliding plate 13 back to its original position, so that the locking block 14 can be re-engaged into the locking slot 20 to complete the installation. The left side of the two return springs 19 is fixedly connected to the right side of the compression spring plate 18, and the right side of the two return springs 19 is fixedly connected to the right inner wall of the top shell 2. The right side of the two sliding rods 16 is fixedly connected to the pull plate 17, and the left side of the two pull plates 17 is in contact with the right side of the top shell 2. The pull plate 17 serves as an operating component, making it convenient for the operator to apply force to pull the sliding rod 16, thereby moving the sliding plate 13 and the locking block 14 to realize the disassembly operation of the mounting plate 4. Its position and shape design conform to ergonomics, making it easy to operate and improving the efficiency of disassembly and assembly.

[0036] Working principle: During the sewage treatment process, fibrous debris easily gets tangled on the screen, causing blockage and seriously affecting the normal operation of the screen and the sewage treatment efficiency. At this time, the cleaning mechanism starts to operate. The motor 5 is powered on and starts, driving the disc 6 to rotate. The protruding rod 7 at the front end of the disc 6 then makes a circular motion. Since the outer wall of the protruding rod 7 is slidably connected to the inner wall of the sliding plate 8, the circular motion of the protruding rod 7 is converted into the back-and-forth sliding of the sliding plate 8 on the inner wall of the mounting plate 4. The sliding plate 8 drives the blade 12 to make a back-and-forth reciprocating motion synchronously through the transmission plate 9 and the connecting plate 11. During the movement, the blade 12 cuts the fibrous debris tangled on the screen with its sharp edge and separates it from the screen, quickly and effectively solving the problem of fibrous debris tangling and blocking, ensuring the smooth flow of the screen and ensuring the smooth operation of the sewage treatment work.

[0037] When it is necessary to disassemble and maintain the mounting plate 4 and the blade 12, pull the pull plate 17 outward. The pull plate 17 drives the sliding rod 16 to slide on the inner wall of the top shell 2. The compression spring plate 18 on the sliding rod 16 compresses the return spring 19. At the same time, the sliding plate 13 moves with the sliding rod 16, causing the locking block 14 to disengage from the locking groove 20 of the mounting plate 4. At this time, the mounting plate 4 loses the limitation of the locking block 14 and can be removed from the top shell 2 along the sliding groove 3, thereby realizing the disassembly of the mounting plate 4 and the blade 12. During installation, align the mounting plate 4 with the sliding groove 3 and insert it. When the locking groove 20 is aligned with the locking block 14, under the elastic force of the return spring 19, the sliding plate 13 moves to the left, and the locking block 14 locks into the locking groove 20, completing the installation and fixing of the mounting plate 4 and the blade 12.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A bar screen for wastewater treatment, comprising a bar screen body (1) and a mounting plate (4), characterized in that: The mounting plate (4) is equipped with a cleaning mechanism inside, and the top shell (2) is installed on the top of the bar screen body (1). The top shell (2) is equipped with disassembly and assembly mechanisms on both the front and rear sides inside. The cleaning mechanism includes a motor (5), which is externally fixedly connected to the inside of the mounting plate (4). A disc (6) is fixedly connected to the drive end of the motor (5). A protruding rod (7) is fixedly connected to the front end of the disc (6). A sliding hole plate (8) is slidably connected to the inner wall of the mounting plate (4). A transmission plate (9) is fixedly connected to both the front and rear sides of the sliding hole plate (8). A connecting plate (11) is fixedly connected to the bottom end of the transmission plate (9). A blade (12) is fixedly connected to the bottom end of the connecting plate (11).

2. The bar screen for wastewater treatment according to claim 1, characterized in that: The top shell (2) has sliding grooves (3) on both the front and rear sides, and the outer wall of the mounting plate (4) is slidably connected to the inner wall of the two sliding grooves (3).

3. A bar screen for wastewater treatment according to claim 1, characterized in that: The inner wall of the mounting plate (4) is fixedly connected with a plurality of limiting blocks (10), and the outer wall of the transmission plate (9) is slidably connected to the adjacent side of two of the limiting blocks (10).

4. A bar screen for wastewater treatment according to claim 1, characterized in that: The outer walls of the multiple connecting plates (11) are slidably connected to the inner wall of the mounting plate (4), and the outer wall of the protruding rod (7) is slidably connected to the inner wall of the sliding hole plate (8).

5. A bar screen for wastewater treatment according to claim 1, characterized in that: The disassembly and assembly mechanism includes a sliding plate (13), a locking block (14) is fixedly connected to the left side of the sliding plate (13), two sliding rods (16) are fixedly connected to the right side of the sliding plate (13), a return spring (19) is sleeved on the outside of the sliding rods (16), a compression spring plate (18) is fixedly connected to the outer wall of the two sliding rods (16), and a pull plate (17) is fixedly connected to the right side of the two sliding rods (16).

6. A bar screen for wastewater treatment according to claim 5, characterized in that: The mounting plate (4) has slots (20) on both the front and rear sides. The inner wall of the slot (20) engages with the outer wall of the block (14). A pad (15) is fixedly connected to the left side of the sliding plate (13). The top sides of the two pads (15) are in contact with the bottom side of the mounting plate (4).

7. A bar screen for wastewater treatment according to claim 5, characterized in that: The outer walls of the two sliding rods (16) are slidably connected to the inner wall of the top shell (2), and the left sides of the two pull plates (17) are in contact with the right side of the top shell (2).

8. A bar screen for wastewater treatment according to claim 5, characterized in that: The outer wall of the compression spring plate (18) is slidably connected to the inner wall of the top shell (2), the left side of the two return springs (19) is fixedly connected to the right side of the compression spring plate (18), and the right side of the two return springs (19) is fixedly connected to the right inner wall of the top shell (2).

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