An inner flow-in grid automatic overflow module

By designing an automatic gate structure in the internal flow bar screen and using a servo motor to drive the screw to lift the gate plate, combined with water level detection, the problem of the internal flow bar screen being unable to automatically adjust in the event of an accident has been solved, realizing the automated and intelligent operation of the equipment and ensuring equipment safety.

CN224325874UActive Publication Date: 2026-06-05SHANGHAI QIANSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI QIANSHUO ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing internal flow bar screens cannot automatically adjust the inlet baffle to cope with sudden changes in water flow in the event of an accident, which may lead to equipment damage and lack of automation and intelligent control.

Method used

An automatic overflow module for an internal inflow bar screen was designed. It adopts a first and second automatic door that are symmetrically attached to the sewage channel and the internal inflow bar screen machine, respectively. The door panel is raised and lowered by a screw driven by a servo motor, and automatic control is achieved by combining the water level detector.

Benefits of technology

It automatically adjusts the door height when the water flow is too large to prevent water leakage and ensure safe operation of the equipment, and has the characteristics of automation and intelligence.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a purpose provides a kind of inner flow grid automatic overflow module, including sewage channel and the inner flow grid machine being set in sewage channel, the front side bottom end of the inner flow grid machine is provided with first automatic door and second automatic door, first automatic door and second automatic door are both left-right symmetry and structure is completely identical, and the two sides of first automatic door and second automatic door are respectively with the left side wall or right side wall in the inside of sewage channel, the front side wall of inner flow grid machine is completely pasted, first automatic door includes door frame, servo motor, screw rod, ear plate, fixed plate, bottom plate, bearing and coupling composition, by adopting above-mentioned technical scheme, water flow can be guided by first automatic door and second automatic door and completely flow from front to back into inner flow grid machine, and first automatic door and second automatic door can be automatically opened and closed under the drive of servo motor, when water flow is too large, manual on-site control is not needed, and the automatic and intelligent operation of equipment is realized.
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Description

Technical Field

[0001] This utility model relates to the field of lifting door technology, and in particular to an automatic overflow module for an internal flow grille. Background Technology

[0002] The internal flow bar screen is a solid-liquid separation device that can continuously remove impurities from fluids, prevent solid waste from entering subsequent treatment equipment, protect the equipment from damage, and improve treatment efficiency. It is an indispensable special equipment in the production processes of urban sewage treatment, waterworks, power plant inlets, textiles, food processing, papermaking, leather and other industries, and is a widely used solid-liquid screening device in China.

[0003] Currently, in order to ensure that the water flow can quickly pass outside the internal inlet bar screen in the event of an accident, the inlet baffle of the internal inlet bar screen needs to be replaced with an automatic door. Depending on the water flow height, the automatic door can be raised and lowered freely under the drive of the drive motor to protect the internal inlet bar screen equipment. Utility Model Content

[0004] The purpose of this invention is to provide an automatic overflow module for an internal inlet grille to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An automatic overflow module for an internal flow bar screen includes a sewage channel, in which an internal flow bar screen is installed. Water flows from front to back within the sewage channel. The module is characterized by having a first automatic door and a second automatic door at the bottom front side of the internal flow bar screen. The first and second automatic doors are symmetrically arranged, with the first automatic door positioned to the left of the second automatic door. The left end face of the first automatic door is completely flush with the left inner wall of the sewage channel, and the bottom end face of the first automatic door is completely flush with the inner bottom of the sewage channel. Similarly, the right end face of the second automatic door is completely flush with the right inner wall of the sewage channel, and the bottom end face of the second automatic door is completely flush with the inner bottom of the sewage channel. Furthermore, the sides of the first and second automatic doors that are close to each other are completely flush with the front side wall of the internal flow bar screen.

[0007] By adopting the above technical solution, the left and right sides of the first automatic door are completely fitted with the inner wall of the left side of the sewage channel and the front side wall of the inner inlet bar screen, respectively. The left and right sides of the second automatic door are completely fitted with the front side wall of the inner inlet bar screen and the inner wall of the right side of the sewage channel, respectively. The bottom surfaces of the first and second automatic doors are completely fitted with the inner bottom of the sewage channel. Therefore, the water flow inside the sewage channel will not seep out of the inner inlet bar screen through the first and second automatic doors. The water flow can flow completely from front to back into the inner inlet bar screen under the guidance of the first and second automatic doors. Moreover, the first and second automatic doors can open and close automatically. When the water flow is too large, no manual on-site control is required, thus realizing the automated and intelligent operation of the equipment.

[0008] In a further embodiment, the first automatic door and the second automatic door have completely identical structures. The first automatic door comprises a door frame, a servo motor, a screw, an ear plate, a fixing plate, a base plate, a bearing, and a coupling. The door frame is fixedly connected to the sewage ditch. A door panel is slidably installed inside the door frame. The fixing plate is fixedly installed on the rear top of the door frame. The servo motor is fixedly installed on the top of the fixing plate. The output shaft of the servo motor passes through the fixing plate and extends to the bottom of the fixing plate. The ear plate is fixedly installed on the rear top of the door panel. A threaded hole is provided at the center of the top of the ear plate. The top end of the screw is screwed into the threaded hole. The base plate is fixedly installed on the rear bottom of the door frame. The top of the base plate is provided with a mounting hole corresponding to the threaded hole. The bearing is fixedly installed in the mounting hole. The bottom end of the screw is installed in the bearing. The top end of the screw is fixedly connected to the bottom end of the output shaft of the servo motor through a coupling.

[0009] By adopting the above technical solution, when the water flow is too large and the servo motor starts to rotate, its output shaft passes through the bottom of the fixed plate and is rotatably connected to the coupling above the ear plate, thereby driving the screw at the bottom of the coupling to rotate.

[0010] In a further embodiment, both the inner left side wall and the inner right side wall of the door frame are provided with receiving grooves, and sealing strips are fixedly installed in the receiving grooves. The left side and the right side of the door panel are slidably installed in the receiving grooves.

[0011] By adopting the above technical solution, the door panel can be firmly installed inside the door frame through the receiving groove, and under the action of the sealing strip, water will not seep out of the first automatic door and the second automatic door.

[0012] By adopting the above technical solution, once the water level detector detects that the water flow height exceeds the threshold set by its control system, it will transmit the information to the servo motor located at the top rear of the first and second automatic doors, causing the servo motor to start rotating and thus adjust the height of the door panel.

[0013] In a further embodiment, a water level detector is installed inside the sewage channel.

[0014] In a further embodiment, the periphery of the door panel is provided with a blunted acute-angle structure.

[0015] In a further embodiment, a waterproof cover is provided on the outside of the servo motor.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. By installing a servo motor on the top of the fixed plate at the rear top of the door frame of the first automatic door and the second automatic door, the output end of the servo motor drives the screw to move through the coupling, thereby driving the door panel to rise and fall, which can achieve the effect of automatically adjusting the door panel. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the connection relationship between the external part of the internal flow bar screen and the sewage channel;

[0019] Figure 2 This is a schematic diagram illustrating the first automatic door structure of this utility model.

[0020] In the diagram, 1. Sewage channel; 2. First automatic door; 21. Door frame; 22. Servo motor; 23. Screw; 24. Ear plate; 25. Fixing plate; 26. Base plate; 27. Bearing; 28. Coupling; 3. Second automatic door; 4. Door panel; 5. Threaded hole; 6. Receiving groove. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0023] Example 1:

[0024] like Figures 1-2As shown, an automatic overflow module for an internal flow bar screen includes a sewage channel 1, an internal flow bar screen machine is installed inside the sewage channel 1, and the water inside the sewage channel 1 flows from front to back. A first automatic door 2 and a second automatic door 3 are installed at the bottom front side of the internal flow bar screen machine. The first automatic door 2 and the second automatic door 3 are symmetrically arranged on the left and right sides, and the first automatic door 2 is located to the left of the second automatic door 3. The left end face of the first automatic door 2 is completely attached to the left inner wall of the sewage channel 1, and the bottom end face of the first automatic door 2 is completely attached to the inner bottom of the sewage channel 1. The right end face of the second automatic door 3 is completely attached to the right inner wall of the sewage channel 1, and the bottom end face of the second automatic door 3 is completely attached to the inner bottom of the sewage channel 1. The sides of the first automatic door 2 and the second automatic door 3 that are close to each other are completely attached to the front side wall of the internal flow bar screen machine.

[0025] The structures of the first automatic door 2 and the second automatic door 3 are completely identical. The first automatic door 2 consists of a door frame 21, a servo motor 22, a screw 23, an ear plate 24, a fixing plate 25, a base plate 26, a bearing 27, and a coupling 28. The door frame 21 is fixedly connected to the sewage ditch 1. The door panel 4 is installed inside the door frame 21 and slides vertically. The fixing plate 25 is fixedly installed on the rear top of the door frame 21. The servo motor 22 is fixedly installed on the top of the fixing plate 25. The output shaft of the servo motor 22 passes through the fixing plate 25 and extends to the bottom of the fixing plate 25. The ear plate 24 is fixedly installed on the rear top of the door panel 4. A threaded hole 5 is provided at the center of the top of the ear plate 24. The top of the screw 23 is... The screw is screwed into the threaded hole 5. The base plate 26 is fixedly installed on the rear bottom end of the door frame 21. The top of the base plate 26 is provided with a mounting hole corresponding to the threaded hole 5. The bearing 27 is fixedly installed in the mounting hole. The bottom end of the screw 23 is installed in the bearing 27. The top end of the screw 23 is fixedly connected to the bottom end of the output shaft of the servo motor 22 through the coupling 28. The inner left side wall and the inner right side wall of the door frame 21 are provided with receiving grooves. Sealing strips are fixedly installed in the receiving grooves. The left side and the right side of the door panel 4 are slidably installed in the receiving grooves. A water level detector is installed inside the sewage channel 1. The periphery of the door panel 4 is provided with a blunted acute angle structure. A waterproof cover is provided on the outside of the servo motor 22.

[0026] Specific implementation process: Water flows from front to back into the inlet bar screen. If the water level exceeds the threshold set by the water level detector inside the sewage channel, the water level detector immediately transmits the information to the servo motor located at the top rear of the first and second automatic doors, causing the servo motor to start rotating. The two ends of the screw also start rotating under the drive of the servo motor output shaft through couplings and bearings. Because the top rear of the door panel is fixedly installed with an ear plate, and the center of the top of the ear plate is provided with a threaded hole that runs vertically through it, and the screw passes through the ear plate, the door panel will move up and down under the action of the ear plate, thus automatically adjusting the height of the door panel.

[0027] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automatic overflow module for an internal inflow bar screen, comprising a sewage channel (1), wherein an internal inflow bar screen is installed inside the sewage channel (1), and the water flow inside the sewage channel (1) flows from front to back, characterized in that: The front bottom of the internal flow bar screen is provided with a first automatic door (2) and a second automatic door (3). The first automatic door (2) and the second automatic door (3) are symmetrically arranged on the left and right sides, and the first automatic door (2) is located on the left side of the second automatic door (3). The left end face of the first automatic door (2) is completely attached to the left inner wall of the sewage channel (1), and the bottom end face of the first automatic door (2) is completely attached to the inner bottom of the sewage channel (1). The right end face of the second automatic door (3) is completely attached to the right inner wall of the sewage channel (1), and the bottom end face of the second automatic door (3) is completely attached to the inner bottom of the sewage channel (1). The sides of the first automatic door (2) and the second automatic door (3) that are close to each other are completely attached to the front side wall of the internal flow bar screen.

2. The automatic overflow module for an internal flow inlet grille according to claim 1, characterized in that: The first automatic door (2) and the second automatic door (3) have completely identical structures. The first automatic door (2) consists of a door frame (21), a servo motor (22), a screw (23), an ear plate (24), a fixing plate (25), a base plate (26), a bearing (27), and a coupling (28). The door frame (21) is fixedly connected to the sewage ditch (1). The door panel (4) is installed inside the door frame (21) and slides up and down. The fixing plate (25) is fixedly installed on the rear top of the door frame (21). The servo motor (22) is fixedly installed on the top of the fixing plate (25). The output shaft of the servo motor (22) passes through the fixing plate (25). The ear plate (24) is fixedly installed on the rear top of the door panel (4). The ear plate (24) has a threaded hole (5) that runs vertically through the top center. The top of the screw (23) is screwed into the threaded hole (5). The bottom plate (26) is fixedly installed on the rear bottom of the door frame (21). The top of the bottom plate (26) has a mounting hole corresponding to the threaded hole (5). The bearing (27) is fixedly installed in the mounting hole. The bottom of the screw (23) is installed in the bearing (27). The top of the screw (23) is fixedly connected to the bottom of the output shaft of the servo motor (22) through a coupling (28).

3. The automatic overflow module for an internal flow inlet grille according to claim 2, characterized in that: The inner left side wall and the inner right side wall of the door frame (21) are provided with receiving grooves, and sealing strips are fixedly installed in the receiving grooves. The left side and the right side of the door panel (4) are slidably installed in the receiving grooves.

4. The automatic overflow module for an internal flow inlet grille according to claim 1, characterized in that: The sewage channel (1) is equipped with a water level detector.

5. The automatic overflow module for an internal flow inlet grille according to claim 2, characterized in that: The periphery of the door panel (4) is provided with an acute-angled chamfered structure.

6. The automatic overflow module for an internal flow inlet grille according to claim 2, characterized in that: The servo motor (22) is provided with a waterproof cover on its outer side.