Grille cleaner for sewage treatment

Abstract

The invention relates to the technical field of sewage treatment, and discloses a sewage treatment grille decontamination machine which comprises a main rack, a grid chain and a driving system are arranged in the main rack, the grid chain comprises two groups of first chain plates and second chain plates which are annularly and alternately hinged, a material separation plate is fixedly connected between the ends of the two sides of the two groups of first chain plates, and the material separation plate is fixedly connected with the driving system. The middle parts of the first chain plate and the second chain plate are rotationally connected with material supporting plates; through the arrangement of the cleaning block and the movably connected material supporting plate, the material supporting plate can rotate in a vertical state, then separation of pollutants is facilitated, the pollutants are prevented from being accumulated in the inclined grid, meanwhile, the vertical material supporting plate facilitates up-down movement of the cleaning block for cleaning, the cleaning effect on the material supporting plate and the material separating plate is further improved, and the practicability is high. And the cleaning difficulty of the material supporting plate and the material separating plate is reduced, and the separation effect of the grid chain and pollutants is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and specifically to a grid sewage treatment machine for sewage treatment. Background Art

[0002] A grid sewage treatment machine is a device used to remove contaminants from flowing sewage. The rotating rake teeth carry the garbage in the water flow and then separate it, thus achieving continuous sewage treatment. Since the rake teeth intercept, salvage, and carry out the pollutants in the sewage, it often occurs that the overall sewage treatment efficiency of the grid sewage treatment machine is reduced due to incomplete separation of the rake teeth from the pollutants and a large amount of pollutants adhering to the rake tooth chain.

[0003] In the Chinese patent with the patent publication number CN117003313A, a toothed rake type grid sewage treatment machine for sewage treatment that is convenient for maintenance without shutdown is disclosed, including a frame, a power mechanism, a safety maintenance device, a rotating chain mechanism, an anti-pressurization mechanism, a rake tooth grid rod, and a rake tooth cleaning mechanism; the rake tooth cleaning mechanism includes a second transmission component, a cleaning brush, a positioning plate, a rotating gear, a fixing block, a sliding block, a limiting block, and a fourth return spring; the cleaning brush is parallel to the rake tooth grid rod and is arranged at the bottom of the upper part of the horizontal frame; a connecting plate is fixedly installed at each end of the cleaning brush, a rack is fixedly installed on the connecting plate, and the connecting plate is slidably installed on the frame.

[0004] By setting the rake tooth cleaning mechanism and using the mutually rotating cleaning brush and the rake tooth grid to brush the rake teeth, although it can achieve the effect of cleaning the rake teeth, during the continuous working process, since a large amount of pollutants will be wound around the cleaning brush, after working for a long time, the overall cleaning effect on the rake teeth is reduced, and the cleaning brush is easily stuck due to adhering a large amount of pollutants. At the same time, by setting the rake teeth that can be disengaged and limited, the limitation of the rake teeth is carried out through a clamping plate and a limiting block, and then the rake teeth are forced to disengage the limit through the action of a limiting plate on a sliding rod, while the restoration of the limit of the rake teeth is through the fourth return spring. However, the sliding rod is easily interfered by pollutants during the sewage treatment process, resulting in unstable disengagement of the rake teeth from the limit and unstable restoration of the limit, thereby affecting the stability of the rake teeth in sewage treatment and reducing the sewage treatment of the rake teeth. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a grid sewage treatment machine for sewage treatment, which has the advantages of good separation effect between the rake teeth and the pollutants and stable rake tooth structure during the sewage treatment process.

[0006] To achieve the above object, the present invention provides the following technical solutions: A screen dirt remover for sewage treatment, comprising a main frame, wherein a screen chain and a driving system are arranged inside the main frame, wherein the screen chain comprises two groups of first chain plates and second chain plates which are alternately hinged in an annular shape, a material separator plate is fixedly connected between the two side ends of the two groups of the first chain plates, and a material support plate is rotatably connected to the middle of the first chain plates and the second chain plates; An upper pressing rod and a lower pressing rod are fixedly connected inside the main frame, and the upper pressing rod and the lower pressing rod are pressed against the top of the upper supporting plate and the top of the lower supporting plate respectively; A discharging mechanism for assisting in the removal of impurities is provided inside the main frame; The unloading mechanism includes a cleaning block for brushing the outside of the supporting plate; A cleaning drive is arranged outside the cleaning block.

[0007] Preferably: the drive system is used to support and drive the grating chain, the drive system includes at least one driving shaft and two driven shafts, a transmission assembly for transmission connection is arranged between the driving shaft and the driven shaft, both side ends of the driving shaft and the driven shaft are fixedly connected with driving wheels, the driving wheels are engaged with the grating chain in the inclined state of the support plate, the driving wheels are used to drive the grating chain to circulate inside the main frame, and also include an underwater guide wheel assembly rotatably connected to the underwater end of the main frame, and a transition guide wheel assembly for supporting the grating chain.

[0008] Preferably: the grating chain includes a unloading section and a loading section, the loading section and the unloading section are connected end to end, the loading section is arranged at an angle, the bottom of the loading section is placed underwater, the unloading section is arranged inside the main frame, the unloading section includes any one driven shaft and transition guide wheel assembly to construct a horizontal section of the grating chain, the unloading mechanism is arranged above the horizontal section of the grating chain, the unloading section also includes a vertical section, the horizontal section and the vertical section are connected end to end.

[0009] Preferably: the underwater guide wheel assembly includes a driving wheel meshed with the grid chain, the upper pressure rod and the lower pressure rod are used to drive the support plate to tilt and deflect, driving the support plate and the partition plates on both sides to form a "Z" shape, the tail ends of the upper pressure rod and the lower pressure rod are adapted to the underwater guide wheel assembly, and the length of the upper pressure rod is adapted to the length of the unloading section.

[0010] Preferably: the unloading mechanism also includes an internal fixed frame fixedly connected to the inside of the main frame, the bottom of the internal fixed frame is fixedly connected to a support guide rod, the cleaning block is slidably connected to the outside of the support guide rod, a reset spring is arranged between the cleaning block and the internal fixed frame, the cleaning drive includes a driving shaft rotatably connected to the inside of the internal fixed frame, the outside of the driving shaft is fixedly connected to a driving cam, a bevel gear group is arranged at the end of the driving shaft, and the driving shaft is connected to an output shaft through the bevel gear group.

[0011] Preferably, a plurality of groups of the cleaning blocks and the driving cams are provided. The cleaning blocks cooperate with the driving cams. Any adjacent driving cams are deflected and misaligned by half a turn. The driving cams are used to drive the cleaning blocks to move up and down outside the supporting guide rod.

[0012] Preferably, a long brush plate and a short brush plate are fixedly connected to the bottom of the cleaning block. The positions of the long brush plate and the short brush plate are adapted to the deflection direction of the material supporting plate. The long brush plate and the short brush plate are used to be inserted and move on both sides of the material supporting plate.

[0013] Preferably, an activity cavity is formed inside the cleaning block. Two groups of connecting pipes are fixedly connected inside the activity cavity. An inner plug plate is slidably connected to the outside of the connecting pipes. Vent holes are formed at the tops of the connecting pipes. The bottoms of the two groups of connecting pipes are respectively communicated with the long brush plate and the short brush plate. The inner plug plate is fixedly connected to the bottom of the supporting guide rod.

[0014] Preferably, a movable toothed plate is slidably connected inside the material separating plate. A telescopic rake tooth is fixedly connected to the top of the movable toothed plate. The telescopic rake tooth penetrates through the material separating plate. A return tooth spring is arranged between the movable toothed plate and the material separating plate. A push plate is fixedly connected to the end of the material supporting plate. The push plate is used to push the movable toothed plate to move.

[0015] Advantages of the present invention: 1. For the grid sewage cleaner for sewage treatment, by arranging the cleaning block and the movably connected material supporting plate, the material supporting plate can be rotated to a vertical state, which is convenient for separating pollutants, avoiding the accumulation of pollutants in the inclined grid, and at the same time, the vertical material supporting plate is convenient for the cleaning block to move up and down for cleaning, further improving the cleaning effect on the material supporting plate and the material separating plate, reducing the cleaning difficulty of the material supporting plate and the material separating plate, and effectively ensuring the separation effect between the grid chain and the pollutants.

[0016] 2. For the grid sewage cleaner for sewage treatment, the upper pressure rod ensures the limit stability during the sewage removal process of the grid chain, thereby ensuring the stability of the sewage removal process of the grid chain. The overall structure is simple, the anti-pollutant interference ability is strong, and it is convenient to ensure the stability of the sewage removal of the grid chain and the sewage removal effect.

[0017] 3. For the grid sewage cleaner for sewage treatment, the cleaning block pushes the long brush plate and the short brush plate to brush the material supporting plate and the material separating plate to complete the cleaning of the grid chain, ensuring the overall discharging effect of the grid chain, effectively avoiding the adhesion and accumulation of pollutants on the grid chain, avoiding the interference of the accumulated pollutants on the interception and fishing effect of the pollutants in the sewage, thereby ensuring the sewage removal effect and the stability of the sewage removal process of the device. And a plurality of groups of parallel cleaning blocks are arranged to further improve the cleaning effect on the grid chain, reduce the influence of pollutants adhering to the long brush plate and the short brush plate, and further reduce the maintenance frequency required by the device, which is convenient for long-term sewage removal work.

[0018] 4. The grille sewage treatment machine further utilizes the internal plug plate installed in the movable cavity to compress air into the connecting pipe, and then the air is ejected from both sides of the long brush plate and the short brush plate. The ejected air further aids in cleaning the material supporting plate and the material separating plate, and further prevents pollutants from adhering to the long brush plate and the short brush plate, thus assisting in cleaning the long brush plate and the short brush plate. This improves the service life and effective working hours of the long brush plate and the short brush plate, ensuring the stability and effectiveness of the cleaning work of the long brush plate and the short brush plate on the grid chain. Brief Description of the Drawings

[0019] Figure 1 Schematic diagram of the main body of the device of the present invention; Figure 2 Schematic diagram of the connection between the grid chain and the discharging mechanism of the present invention; Figure 3 Schematic diagram of the installation form of the grid chain of the present invention; Figure 4 Schematic diagram of the discharging mechanism and the drive system of the present invention; Figure 5 Schematic diagram of the first chain plate and the second chain plate of the present invention; Figure 6 Schematic diagram of the connection between the material supporting plate, the material separating plate, the movable tooth plate and the telescopic rake teeth of the present invention; Figure 7 Schematic diagram of the connection between a single cleaning block, a driving cam and a return spring of the present invention; Figure 8 Schematic diagram of the connection between the movable cavity, the connecting pipe and the internal plug plate inside the cleaning block of the present invention.

[0020] In the figure: 1, total frame; 2, grid chain; 3, drive system; 4, upper pressure rod; 5, lower pressure rod; 6, discharging mechanism; 21, first chain plate; 22, second chain plate; 23, material separating plate; 24, material supporting plate; 231, movable tooth plate; 232, return tooth spring; 233, telescopic rake teeth; 241, push plate; 31, driving shaft; 32, driven shaft; 33, driving wheel; 34, transmission component; 35, underwater guide wheel assembly; 36, transition guide wheel assembly; 61, internal fixing frame; 62, support guide rod; 63, cleaning block; 64, return spring; 65, cleaning drive; 651, drive shaft; 652, driving cam; 66, bevel gear set; 67, output shaft; 631, long brush plate; 632, short brush plate; 633, movable cavity; 634, connecting pipe; 635, internal plug plate. Detailed Description of the Invention

[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0022] Embodiment 1 Please refer to Figure 1 - Figure 8 , a grille dirt remover for sewage treatment, including a general frame 1. Inside the general frame 1, a grille chain 2 and a drive system 3 are provided. The grille chain 2 includes two groups of a number of first link plates 21 and second link plates 22 that are alternately hinged in a ring shape. Between the two ends on both sides of the two groups of first link plates 21, a material separating plate 23 is fixedly connected. A material supporting plate 24 is rotatably connected to the middle of both the first link plate 21 and the second link plate 22; Inside the general frame 1, an upper pressing rod 4 and a lower pressing rod 5 are fixedly connected. The upper pressing rod 4 and the lower pressing rod 5 respectively press against the tops of the upper layer material supporting plate 24 and the lower layer material supporting plate 24; Inside the general frame 1, a discharging mechanism 6 for assisting in removing impurities is provided; The discharging mechanism 6 includes a cleaning block 63 for brushing outside the material supporting plate 24; Outside the cleaning block 63, a cleaning drive 65 is provided.

[0023] During the dirt removal process, the device is installed in a flowing sewage area. The general frame 1 includes a dirt removal part extending underwater and a part above water for separating pollutants from the grille chain 2. A pollutant conveying device is also provided for conveying the separated pollutants to the recovery area.

[0024] During the working process, the drive system 3 drives the grille chain 2 to circulate and rotate inside the general frame 1, intercepts and takes out pollutants in the water through the grille chain 2, separates the pollutants from the grille chain 2 in the part of the general frame 1 above water. At the same time, the cleaning block 63 is used to assist in separating the pollutants from the grille chain 2, ensuring the separation effect of the grille chain 2 and the pollutants, and ensuring the cleaning effect on the grille chain 2, enabling the grille chain 2 to stably and effectively intercept and separate pollutants in the sewage, and ensuring the stable progress of the entire dirt removal process.

[0025] It should be noted that the upper pressing rod 4 and the lower pressing rod 5 are used to drive the material supporting plate 24 to tilt and deflect, driving the material supporting plate 24 and the material separating plates 23 on both sides to form a "Z" shape. The length of the upper pressing rod 4 is adapted to the length of the discharging section. The upper pressing rod 4 is used to keep the grille chain 2 in a dirt removal limiting state (that is, the material supporting plate 24 and the material separating plates 23 on both sides form a "Z" shape).

[0026] When the material supporting plate 24 is inclined, the material supporting plate 24 and the material separating plate 23 form a number of inclined gratings, and the pollutants are driven to move upward through the inclined gratings, so as to achieve the decontamination effect. And when separating the pollutants, since the material supporting plate 24 loses the limit of the upper pressure rod 4, the material supporting plate 24 tends to rotate to a vertical state, which is convenient for the separation of the pollutants, avoiding the accumulation of pollutants in the inclined gratings. At the same time, the material supporting plate 24 in the vertical state is convenient for the cleaning block 63 to move up and down for cleaning, further improving the cleaning effect on the material supporting plate 24 and the material separating plate 23, reducing the cleaning difficulty of the material supporting plate 24 and the material separating plate 23, effectively ensuring the separation effect between the grating chain 2 and the pollutants. At the same time, the upper pressure rod 4 ensures that the grating chain 2 is in the decontamination limit state. The overall structure is simple, the work is stable, effectively avoiding the interference of the state conversion of the contaminated grating chain 2 in the water, and then ensuring the stability of the decontamination process of the grating chain 2.

[0027] Reference Figure 2 and Figure 4 , in an optional embodiment: The driving system 3 is used to support and drive the grating chain 2. The driving system 3 includes at least one driving shaft 31 and two driven shafts 32. A transmission component 34 for driving connection is arranged between the driving shaft 31 and the driven shaft 32. Both sides of the driving shaft 31 and the driven shaft 32 are fixedly connected with driving wheels 33. The driving wheels 33 are engaged with the grating chain 2 in the inclined state of the material supporting plate 24. The driving wheels 33 are used to drive the grating chain 2 to rotate circularly inside the general frame 1. It also includes an underwater guide wheel assembly 35 rotatably connected to the lower end of the general frame 1 in water, and a transition guide wheel assembly 36 for supporting the grating chain 2.

[0028] It should be noted that the outer edges of the first chain plate 21 and the second chain plate 22 are attached to the general frame 1. The general frame 1 is provided with a limiting ring for limiting the first chain plate 21 and the second chain plate 22 in the area of the driving wheel 33. The limiting ring is attached to the outside of the first chain plate 21 and the second chain plate 22, for ensuring that the grating chain 2 is stably engaged outside the driving wheel 33.

[0029] It should be noted that a motor and a speed reducer are arranged outside the driving shaft 31. The motor and the speed reducer are installed on the top of the general frame 1. The motor is used to drive the driving shaft 31 to rotate. The driving shaft 31 drives the driven shaft 32 to rotate through the transmission component 34. The driving shaft 31 and the driven shaft 32 synchronously drive the driving wheel 33 to rotate, and the grating chain 2 is driven to rotate circularly by the multi-point synchronous rotation of the driving wheel 33.

[0030] Reference Figure 3, in an optional embodiment: The grid chain 2 includes a discharging section and a feeding section. The feeding section and the discharging section are connected end to end. The feeding section is inclined and its bottom is placed underwater. The discharging section is arranged inside the main frame 1. The discharging section includes a horizontal section of the grid chain 2 constructed by any one of the driven shafts 32 and the transition guide wheel assembly 36. The discharging mechanism 6 is arranged above the horizontal section of the grid chain 2. The discharging section further includes a vertical section, and the horizontal section and the vertical section are connected end to end.

[0031] It should be noted that in the vertical section, the inclined grille openings face downward, and pollutants are separated from the grid chain 2 by gravity. When the grid chain 2 runs to the horizontal section, the discharging mechanism 6 further assists in cleaning the grid chain 2 to ensure the separation effect between the grid chain 2 and the pollutants.

[0032] By setting multiple discharging areas, pollutants fished in multiple parts are removed by gravity, and then the discharging mechanism 6 is used to assist in cleaning the residual pollutants in the horizontal section, thereby facilitating the long-term operation of the grid chain 2 and reducing the maintenance requirements for this grid decontaminator.

[0033] In an optional embodiment: The underwater guide wheel assembly 35 includes a driving wheel 33 meshing with the grid chain 2, and the tails of the upper pressing rod 4 and the lower pressing rod 5 are adapted to the underwater guide wheel assembly 35.

[0034] It should be noted that under the pressing action of the lower pressing rod 5, the grid chain 2 makes the material supporting plate 24 enter an inclined state, which is convenient for the material supporting plate 24 to mesh with the driving wheel 33 of the underwater guide wheel assembly 35. The grid chain 2 in the meshing state with the driving wheel 33 is in a state of intercepting pollutants. The top and bottom of the material supporting plate 24 are respectively abutted against the adjacent partition plates 23 to form an inclined grille state.

[0035] The grid chain 2 out of the meshing state enters the area of the upper pressing rod 4, and the upper pressing rod 4 continues to keep the grid chain 2 in a state of intercepting pollutants, stably constructing an inclined grille for intercepting pollutants.

[0036] During the working process, the driving system 3 drives the grid chain 2 to rotate. When the non-limited state grid chain 2 enters the position of the lower pressing rod 5, the grid chain 2 enters a stable limited state. At this time, the grid chain 2 constructs a stable inclined grille for fishing pollutants. And when the limited state grid chain 2 disengages from the lower pressing rod 5, the grid chain 2 synchronously enters the meshing state with the driving wheel 33 of the underwater guide wheel assembly 35, which is convenient for the operation of the grid chain 2.

[0037] Furthermore, when the grid chain 2 disengages from the driving wheel 33 of the underwater guide wheel assembly 35, the grid chain 2 synchronously enters the position of the upper pressing rod 4, and the upper pressing rod 4 synchronously keeps the grid chain 2 in a stable limited state.

[0038] The upper pressure rod 4 is used to ensure the limit stability of the grid chain 2 during the sewage removal process, thereby ensuring the stability of the sewage removal process of the grid chain 2. Moreover, the overall structure is simple, the anti-pollutant interference ability is strong, which is convenient to ensure the stability of the sewage removal of the grid chain 2 and the sewage removal effect.

[0039] Embodiment 2 Reference Figure 4 、 Figure 7 and Figure 8 On the basis of Embodiment 1, further, the discharging mechanism 6 further includes an inner fixing frame 61 fixedly connected inside the main frame 1. A support guide rod 62 is fixedly connected to the bottom of the inner fixing frame 61. A cleaning block 63 is slidably connected to the outside of the support guide rod 62. A return spring 64 is provided between the cleaning block 63 and the inner fixing frame 61. The cleaning drive 65 includes a drive shaft 651 rotatably connected inside the inner fixing frame 61. A drive cam 652 is fixedly connected to the outside of the drive shaft 651. A bevel gear set 66 is provided at the end of the drive shaft 651. The drive shaft 651 is drivingly connected to an output shaft 67 through the bevel gear set 66.

[0040] It should be noted that the rotational speed of the output shaft 67 is adapted to that of the driving shaft 31, and both the output shaft 67 and the driving shaft 31 are in an intermittent rotation state.

[0041] Wherein, a first link plate 21 and a second link plate 22 form a link. The distance between the hinge shafts on the opposite sides of the first link plate 21 and the second link plate 22 is a link distance. The driving shaft 31 drives the grid chain 2 to rotate a link distance, and the output shaft 67 drives the drive cam 652 to rotate one circle.

[0042] When the driving shaft 31 drives the grid chain 2 to operate a link distance, then the output shaft 67 drives the drive cam 652 to rotate one circle, and then the driving shaft 31 drives the grid chain 2 to operate a link distance.

[0043] Repeat the above steps to complete the operation process of the grid sewage removal machine.

[0044] Reference Figure 7 In an alternative embodiment: A plurality of groups of cleaning blocks 63 and drive cams 652 are provided. The cleaning blocks 63 and the drive cams 652 cooperate. Any adjacent drive cams 652 are deflected and misaligned by half a week. The drive cams 652 are used to drive the cleaning blocks 63 to move up and down outside the support guide rod 62.

[0045] It should be noted that during the operation of the discharging mechanism 6, the output shaft 67 drives the drive shaft 651 to rotate through the bevel gear set 66, and the drive shaft 651 drives the drive cam 652 to rotate. When the drive shaft 651 rotates one circle, any adjacent cleaning blocks 63 alternately move up and down once, and then return to stay above the horizontal section of the grid chain 2.

[0046] Among them, a long brush plate 631 and a short brush plate 632 are fixedly connected to the bottom of the cleaning block 63. The positions of the long brush plate 631 and the short brush plate 632 are adapted to the deflection direction of the material supporting plate 24. The long brush plate 631 and the short brush plate 632 are used for plugging and moving on both sides of the material supporting plate 24.

[0047] It should be noted that the long brush plate 631 contacts the material supporting plate 24 first. The long brush plate 631 is used to push the material supporting plate 24 to rotate towards the vertical state. When the material supporting plate 24 tends to be in the vertical state, the short brush plate 632 enters the other side of the material supporting plate 24.

[0048] It should be noted that bristles are provided on both sides of the long brush plate 631 and the short brush plate 632, which are respectively used to clean the sides of the material supporting plate 24 and the material separating plate 23.

[0049] Specifically: In the initial state, several driving cams 652 are all in the state where the convex parts are horizontal. At this time, both the long brush plate 631 and the short brush plate 632 are above the horizontal section of the grid chain 2, and the grid chain 2 is in an operable state.

[0050] During operation, the driving shaft 31 and the driven shaft 32 drive the grid chain 2 to run intermittently, and the rotation amplitude is the distance of one chain link. Through the rotation during the intermittent stop, fluctuations are generated during the operation of the grid chain 2, which is convenient for separating pollutants and flowing water. At the same time, in the horizontal section of the auxiliary unloading, when the grid chain 2 enters below the unloading mechanism 6, the grid chain 2 advances a distance of one chain link, and the driving shaft 651 drives the driving cam 652 to rotate. Then the driving cam 652 cooperates with the return spring 64 to drive the cleaning block 63 to perform a reciprocating up and down movement once, so that the cleaning block 63 pushes the long brush plate 631 and the short brush plate 632 to brush the material supporting plate 24 and the material separating plate 23 once, completing the cleaning of the grid chain 2, ensuring the overall unloading effect of the grid chain 2, effectively avoiding the adhesion and accumulation of pollutants on the grid chain 2, and avoiding the interference of the accumulated pollutants on the interception and fishing effect of the pollutants in the sewage, thereby ensuring the decontamination effect of the device and the stability of the decontamination process.

[0051] Moreover, by arranging multiple groups of parallel cleaning blocks 63, the cleaning effect on the grid chain 2 is further improved, the influence of pollutants adhering to the long brush plate 631 and the short brush plate 632 is reduced, and further the maintenance frequency required for the device is reduced, which is convenient for long-term sewage decontamination work.

[0052] Embodiment III Reference Figure 8, Further on the basis of the second embodiment, an activity cavity 633 is formed inside the cleaning block 63. Two connecting pipes 634 are fixedly connected inside the activity cavity 633. An inner plug plate 635 is slidably connected to the outside of the connecting pipe 634. Vent holes are formed at the top of the connecting pipe 634. The bottoms of the two connecting pipes 634 are respectively communicated with the long brush plate 631 and the short brush plate 632. The inner plug plate 635 is fixedly connected to the bottom of the support guide rod 62.

[0053] It should be noted that a number of air spray holes are evenly formed on both sides of the long brush plate 631 and the short brush plate 632.

[0054] The support guide rod 62 is arranged as a hollow tube body. The support guide rod 62 communicates with the lower cavity of the inner plug plate 635 in the activity cavity 633. The top of the support guide rod 62 is communicated with the outside. The inner plug plate 635 and the cleaning block 63 form a plunger barrel. The inner plug plate 635 is provided with a one-way air inlet hole. When the inner plug plate 635 moves upward in the activity cavity 633, it pushes the gas into the connecting pipe 634. When the inner plug plate 635 moves downward in the activity cavity 633, the gas in the lower cavity of the inner plug plate 635 enters the upper cavity through the air inlet hole.

[0055] During the process of the cleaning block 63 driving the long brush plate 631 and the short brush plate 632 to clean the material supporting plate 24 and the material separating plate 23, when the cleaning block 63 moves downward, since the position of the inner plug plate 635 is fixed by the support guide rod 62, the inner plug plate 635 moves upward inside the activity cavity 633 relative to the cleaning block 63.

[0056] Therefore, when the cleaning block 63 moves downward, the compressed air of the inner plug plate 635 enters the connecting pipe 634. The compressed gas enters the long brush plate 631 and the short brush plate 632 through the connecting pipe 634, and then is ejected from both sides of the long brush plate 631 and the short brush plate 632. Through the ejected gas, the effect of further assisting in cleaning the material supporting plate 24 and the material separating plate 23 is achieved. The ejected gas further achieves the effect of preventing pollutants from adhering to the long brush plate 631 and the short brush plate 632, and achieves the effect of assisting in cleaning the long brush plate 631 and the short brush plate 632, thereby improving the use effect and effective working duration of the long brush plate 631 and the short brush plate 632, and ensuring the stability and effectiveness of the cleaning work of the long brush plate 631 and the short brush plate 632 on the grid chain 2.

[0057] Embodiment Four Reference Figure 6 , Further on the basis of the second embodiment: An activity tooth plate 231 is slidably connected inside the material separating plate 23. A telescopic rake tooth 233 is fixedly connected to the top of the activity tooth plate 231. The telescopic rake tooth 233 penetrates through the material separating plate 23. A return tooth spring 232 is arranged between the activity tooth plate 231 and the material separating plate 23. A push plate 241 is fixedly connected to the end of the material supporting plate 24. The push plate 241 is used to push the activity tooth plate 231 to move.

[0058] When the grid chain 2 enters the sewage removal limit state and the material supporting plate 24 tilts and deflects, the material supporting plate 24 pushes the movable tooth plate 231 to move upward inside the material separating plate 23 through the push plate 241. The movable tooth plate 231 drives the telescopic rake teeth 233 to protrude outside the material separating plate 23, enabling the grid chain 2 to have an inclined grille for sewage removal and protruding telescopic rake teeth 233, thereby further improving the interception and separation effect of pollutants, facilitating the entry of pollutants to the top of the grid chain 2, enhancing the sewage removal effect of the grid chain 2 on sewage. At the same time, when the grid chain 2 breaks away from the limit of the upper pressure rod 4 and the driving wheel 33, the movable tooth plate 231 retracts into the material separating plate 23 under the action of the tooth-return spring 232, thus facilitating the detachment of pollutants and avoiding the trouble of the telescopic rake teeth 233 sticking to pollutants.

[0059] Furthermore, since both the telescopic rake teeth 233 and the tooth-return spring 232 are installed inside the material separating plate 23, it effectively avoids the interference of sewage or pollutants on the tooth-return spring 232 and ensures the stable operation of the tooth-return spring 232.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grid decontamination machine for sewage treatment, comprising a general frame (1), wherein a grid chain (2) and a drive system (3) are arranged inside the general frame (1), and it is characterized in that: The grid chain (2) includes two groups of a number of first link plates (21) and second link plates (22) that are alternately hinged in a ring shape. A partition plate (23) is fixedly connected between the two side ends of the two groups of first link plates (21). A material supporting plate (24) is rotatably connected to the middle of both the first link plate (21) and the second link plate (22). An upper pressing rod (4) and a lower pressing rod (5) are fixedly connected inside the total machine frame (1). The upper pressing rod (4) and the lower pressing rod (5) respectively press against the tops of the upper layer material supporting plate (24) and the lower layer material supporting plate (24). A discharging mechanism (6) for assisting in removing impurities is arranged inside the total machine frame (1). The discharging mechanism (6) includes a cleaning block (63) for brushing outside the material supporting plate (24). A cleaning drive (65) is arranged outside the cleaning block (63).

2. The grid dirt removal machine for sewage treatment according to claim 1, characterized in that: The drive system (3) is used to support and drive the grid chain (2). The drive system (3) includes at least one driving shaft (31) and two driven shafts (32). A transmission component (34) for transmission connection is arranged between the driving shaft (31) and the driven shaft (32). Driving wheels (33) are fixedly connected to both side ends of the driving shaft (31) and the driven shaft (32). The driving wheels (33) are meshed with the grid chain (2) in an inclined state of the material supporting plate (24). The driving wheels (33) are used to drive the grid chain (2) to rotate circularly inside the total machine frame (1). It also includes an underwater guide wheel assembly (35) rotatably connected to the lower end of the total machine frame (1) in water, and a transition guide wheel assembly (36) for supporting the grid chain (2).

3. The grid dirt removal machine for sewage treatment according to claim 2, characterized in that: The grid chain (2) includes a discharging section and a feeding section. The feeding section and the discharging section are connected end to end. The feeding section is inclined. The bottom of the feeding section is placed underwater. The discharging section is arranged inside the total machine frame (1). The discharging section includes a horizontal section of the grid chain (2) constructed by any one of the driven shafts (32) and the transition guide wheel assembly (36). The discharging mechanism (6) is arranged above the horizontal section of the grid chain (2). The discharging section further includes a vertical section. The horizontal section and the vertical section are connected end to end.

4. The grid dirt removal machine for sewage treatment according to claim 3, characterized in that: The underwater guide wheel assembly (35) includes a driving wheel (33) meshed with the grid chain (2). The upper pressing rod (4) and the lower pressing rod (5) are used to drive the material supporting plate (24) to tilt and deflect, driving the material supporting plate (24) and the partition plates (23) on both sides to form a "Z" shape. The tail ends of the upper pressing rod (4) and the lower pressing rod (5) are adapted to the underwater guide wheel assembly (35). The length of the upper pressing rod (4) is adapted to the length of the discharging section.

5. A grille sewage treatment machine according to claim 2, characterized in that: The unloading mechanism (6) further comprises an inner fixing frame (61) fixedly connected to the interior of the main frame (1); a support guide rod (62) is fixedly connected to the bottom of the inner fixing frame (61); a cleaning block (63) is slidably connected to the exterior of the support guide rod (62); a return spring (64) is provided between the cleaning block (63) and the inner fixing frame (61); the cleaning drive (65) comprises a driving shaft (651) rotatably connected to the interior of the inner fixing frame (61); a driving cam (652) is fixedly connected to the exterior of the driving shaft (651); a bevel gear set (66) is provided at the end of the driving shaft (651); and the driving shaft (651) is transmission-connected to an output shaft (67) via the bevel gear set (66).

6. The grid dirt removal machine for sewage treatment according to claim 5, characterized in that: The cleaning block (63) and the driving cam (652) are both provided in a plurality of groups. The cleaning block (63) and the driving cam (652) cooperate with each other, and any adjacent driving cams (652) are deflected and dislocated by half a circle. The driving cam (652) is used to drive the cleaning block (63) to move up and down outside the supporting guide rod (62).

7. A grid dirt removal machine for sewage treatment according to claim 1 or 5 or 6, characterized in that: A long brush plate (631) and a short brush plate (632) are fixedly connected to the bottom of the cleaning block (63); the positions of the long brush plate (631) and the short brush plate (632) are adapted to the deflection direction of the support plate (24); the long brush plate (631) and the short brush plate (632) are used for plugging and moving on both sides of the support plate (24).

8. A grille sewage removal machine for sewage treatment according to claim 7, characterized in that: The cleaning block (63) has an active cavity (633) formed inside, two groups of connecting tubes (634) are fixedly connected inside the active cavity (633), an inner plug plate (635) is slidably connected outside the connecting tubes (634), a vent hole is formed on the top of the connecting tubes (634), the bottoms of the two groups of connecting tubes (634) are respectively connected to the long brush plate (631) and the short brush plate (632), and the inner plug plate (635) is fixedly connected to the bottom of the supporting guide rod (62).

9. The grid sewage removal machine for sewage treatment according to claim 1, characterized in that: The separator plate (23) is slidably connected to a movable tooth plate (231) inside, and the top of the movable tooth plate (231) is fixedly connected to telescopic rake teeth (233), and the telescopic rake teeth (233) penetrate the separator plate (23), and a return tooth spring (232) is provided between the movable tooth plate (231) and the separator plate (23), and the end of the support plate (24) is fixedly connected to a push plate (241), and the push plate (241) is used to push the movable tooth plate (231) to move.

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