Self-cleaning type grating device of sewage treatment plant

Abstract

The invention discloses a self-cleaning type grating device of a sewage treatment plant, and belongs to the technical field of sewage treatment, the self-cleaning type grating device comprises a box body, the lower part of the box body is connected with supporting legs, and the interior of the box body is connected with a grating body; according to the device, the bearing assembly and the abutting assembly are arranged, an abutting plate is moved to drive a moving block to move, then a bearing box is placed above a placing plate and moves, after the bearing box is attached to the outer side wall of the box body, the abutting plate is loosened, a third spring loses the external force to restore the original appearance, and the moving block is driven to move; and then the abutting plate can be driven to move to abut against the receiving box, impurities discharged through the discharging pipe after follow-up cleaning fall into the receiving box to be collected, and when the impurities in the receiving box need to be treated, the receiving box is taken down from the containing plate and moved firstly, then a sealing cover is taken down in a rotating mode, and then the impurities in the receiving box are removed. And the impurities in the receiving box are poured out through the discharging pipe, so that an operator can conveniently collect and treat the impurities.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and particularly relates to a self-cleaning grille device for a sewage treatment plant. Background Art

[0002] The sewage treatment process is a variety of economical, reasonable, scientific, and effective process methods for urban domestic sewage and industrial wastewater. Sewage treatment is widely applied in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering.

[0003] The prior art has the following problems: 1. Debris cleared from the grille body is directly discharged from the box body through a discharge pipe, but the operation of placing a container for receiving the discharged debris cannot be carried out, affecting the receiving and collecting effect of the debris; 2. During the process of discharging, transporting, and treating the debris, the peculiar smell emitted by the debris diffuses into the surrounding environment, easily causing environmental pollution in the surrounding area, and further easily causing physical and mental discomfort to the surrounding personnel; 3. When using a blower to perform a jet cleaning operation on the grille body, dust and other impurities in the external environment are blown onto the grille body under the action of the blower, easily causing secondary pollution of the grille body. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides a self-cleaning grille device for a sewage treatment plant, which has the characteristics of receiving falling materials, sealing and preventing diffusion, and filtering and removing impurities.

[0005] To achieve the above object, the present invention provides the following technical solution: A self-cleaning grille device for a sewage treatment plant, including a box body, a support leg is connected below the box body, a grille body is connected inside the box body, a pushing and cleaning mechanism is arranged on the side wall of the box body and above the grille body, a water inlet pipe is connected to the side wall of the box body and above the pushing and cleaning mechanism, a receiving assembly is arranged on the outer side wall of the box body, a pressing component is arranged on the receiving assembly, a discharge pipe is connected to the side wall of the box body and inside the receiving assembly, a sealing component is arranged inside the receiving assembly and on one side of the discharge pipe, a jet cleaning mechanism is arranged on the box body and above the grille body, and a filtering component is arranged above the box body.

[0006] Further, the receiving assembly includes a receiving box, a placement plate, an annular hole, a discharge pipe, and a sealing cover. A placement plate is connected to the outer side wall of the box body, a receiving box is arranged above the placement plate, an annular hole is arranged on the side wall of the receiving box, a discharge pipe is connected above the receiving box, and a sealing cover is connected to the end of the discharge pipe away from the receiving box.

[0007] Further, the pressing component includes a pressing plate, a third spring, a moving block, and a moving cavity. A moving cavity is provided above the placing plate. A moving block is arranged inside the moving cavity. A third spring is connected between the moving block and the moving cavity. A pressing plate is connected above the moving block.

[0008] Further, one end of the moving block close to the moving cavity is connected with a first guiding slider, and a first guiding chute is arranged on the inner side wall of the moving cavity at a position corresponding to the first guiding slider.

[0009] Further, the sealing component includes a moving rod, a second spring, a fixing plate, a pressing rod, and a sealing plate. A fixing plate is connected to the inner side wall of the receiving box. A moving rod is arranged on one side of the fixing plate. A second spring is connected between the moving rod and the fixing plate. A sealing plate is connected to one end of the moving rod. A pressing rod is connected to one end of the discharge pipe close to the sealing plate.

[0010] Further, one side of the moving rod close to the receiving box is connected with a second guiding slider, and a second guiding chute is arranged on the inner side wall of the receiving box at a position corresponding to the second guiding slider.

[0011] Further, a sealing ring is connected to one side of the sealing plate close to the discharge pipe, and an annular sealing groove is arranged on the inner side wall of the receiving box at a position corresponding to the sealing ring.

[0012] Further, the filtering component includes a filter mesh cover and a bottom frame. A filter mesh cover is arranged above the box body and around the components of the air jet cleaning mechanism. One end of the filter mesh cover close to the box body is connected with a bottom frame.

[0013] Further, the filtering component further includes a top plate, an inserting rod, a fixing block, a pull rod, a first spring, and an inserting groove. A top plate is connected above the box body and on one side of the filter mesh cover. A fixing block is connected above the box body. An inserting rod is inserted into the fixing block. A first spring is connected between the fixing block and the inserting rod. A pull rod is connected to one end of the inserting rod and inside the first spring. An inserting groove is arranged on the side wall of the bottom frame at a position corresponding to the inserting rod.

[0014] Further, limiting sliders are connected to both sides of one end of the inserting rod close to the fixing block, and limiting chutes are arranged on the inner side wall of the fixing block at positions corresponding to the limiting sliders.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention is provided with a receiving component and a pressing component. Moving the pressing plate drives the moving block to move. Then, place the receiving box above the placing plate and move it. When the receiving box fits against the outer sidewall of the box body, release the pressing plate. The third spring loses the external force and returns to its original state, driving the moving block to move, and further driving the pressing plate to move to press the receiving box. Subsequently, the impurities discharged through the discharge pipe after cleaning fall into the receiving box for collection. When it is necessary to process the impurities inside the receiving box, first remove the receiving box from the placing plate and move it, then rotate and remove the sealing cover, and then pour out the impurities inside the receiving box through the discharge pipe, which is convenient for the operator to collect and process the impurities.

[0016] 2. The present invention is provided with a sealing component. During the process of inserting the discharge pipe into the annular hole, it drives the abutting rod to move. The movement of the abutting rod drives the sealing plate to move. The movement of the sealing plate drives the moving rod to move along the fixing plate. The moving rod moves to compress the second spring, avoiding the sealing plate from affecting the insertion operation of the discharge pipe. Subsequently, when removing the receiving box from the placing plate, the discharge pipe and the abutting rod are disengaged from the receiving box. The second spring loses the external force and returns to its original state, driving the moving rod to move. The movement of the moving rod drives the sealing plate to move and fit against the inner sidewall of the receiving box. Under the action of the sealing plate, it can prevent the odor emitted by the sundries inside the receiving box from diffusing into the surrounding environment through the annular hole, avoiding pollution of the surrounding environment and discomfort of the surrounding personnel.

[0017] 3. The present invention is provided with a filtering component. Pull the pull rod to drive the inserting rod to move and retract into the fixed block. The inserting rod moves to compress the first spring. Then, move the bottom frame to fit against the upper part of the box body and the sidewall of the top plate. Release the pull rod. The first spring loses the external force and returns to its original state, driving the inserting rod to move and insert into the inserting slot. Under the action of the inserting rod and the top plate, the bottom frame can be limited and fixed, so that the filter mesh cover can be installed on the periphery of the jet cleaning mechanism. Subsequently, during the use of the jet cleaning mechanism, under the action of the filter mesh cover, it can prevent dust and other impurities in the external environment from being blown onto the grille body under the action of the jet cleaning mechanism, causing secondary pollution of the grille body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 is of the present invention Figure 2 the enlarged view at A in; Figure 4 is of the present invention Figure 2 the enlarged view at B in; Figure 5 is of the present invention Figure 2 the enlarged view at C in; Figure 6Cross-sectional view of the receiving box of the present invention; Figure 7 Front view of the sealing plate of the present invention.

[0019] In the figure: 1, box body; 2, filtering component; 21, filter screen cover; 22, top plate; 23, insertion rod; 24, fixing block; 25, pull rod; 26, first spring; 27, insertion slot; 28, bottom frame; 3, receiving component; 31, receiving box; 32, placing plate; 33, annular hole; 34, discharge pipe; 35, sealing cover; 4, support leg; 5, jet cleaning mechanism; 6, grille body; 7, pushing and cleaning mechanism; 8, water inlet pipe; 9, sealing component; 91, moving rod; 92, second spring; 93, fixing plate; 94, abutting rod; 95, sealing plate; 10, discharge pipe; 11, tightening component; 111, tightening plate; 112, third spring; 113, moving block; 114, moving cavity. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0021] Please refer to Figure 1-7 , the present invention provides the following technical solutions: A self-cleaning grille device for a sewage treatment plant, including a box body 1, a support leg 4 is connected below the box body 1, a grille body 6 is connected inside the box body 1, a pushing and cleaning mechanism 7 is arranged on the side wall of the box body 1 and above the grille body 6, a water inlet pipe 8 is connected on the side wall of the box body 1 and above the pushing and cleaning mechanism 7, a receiving component 3 is arranged on the outer side wall of the box body 1, a tightening component 11 is arranged on the receiving component 3, a discharge pipe 10 is connected on the side wall of the box body 1 and inside the receiving component 3, a sealing component 9 is arranged inside the receiving component 3 and on one side of the discharge pipe 10, a jet cleaning mechanism 5 is arranged on the box body 1 and above the grille body 6, and a filtering component 2 is arranged above the box body 1.

[0022] Further in the present invention, the receiving component 3 includes a receiving box 31, a placing plate 32, an annular hole 33, a discharge pipe 34 and a sealing cover 35. A placing plate 32 is connected to the outer side wall of the box body 1, a receiving box 31 is arranged above the placing plate 32, an annular hole 33 is arranged on the side wall of the receiving box 31, a discharge pipe 34 is connected above the receiving box 31, and one end of the discharge pipe 34 away from the receiving box 31 is connected with a sealing cover 35. By adopting the above technical solution, the receiving box 31 is placed above the placing plate 32 and moved. When the receiving box 31 fits against the outer side wall of the box body 1, the discharge pipe 10 is then inserted into the annular hole 33. The impurities discharged through the discharge pipe 10 subsequently fall into the receiving box 31 for collection. When it is necessary to process the impurities inside the receiving box 31, the sealing cover 35 is rotated and opened, and then the impurities inside the receiving box 31 are poured out through the discharge pipe 34, facilitating the operator to process the collected impurities.

[0023] In the present invention, further, the pressing component 11 includes a pressing plate 111, a third spring 112, a moving block 113, and a moving cavity 114. A moving cavity 114 is provided above the placing plate 32. A moving block 113 is arranged inside the moving cavity 114. A third spring 112 is connected between the moving block 113 and the moving cavity 114. A pressing plate 111 is connected above the moving block 113. By adopting the above technical solution, first, the pressing plate 111 is moved in the opposite direction of the box body 1. The movement of the pressing plate 111 drives the moving block 113 to move inside the moving cavity 114. The movement of the moving block 113 compresses the third spring 112. Then, the receiving box 31 is placed above the placing plate 32 and moved. When the receiving box 31 fits against the outer side wall of the box body 1, the pressing plate 111 is released. The third spring 112 returns to its original state without external force, driving the moving block 113 to move, and further driving the pressing plate 111 to move to perform a pressing operation on the receiving box 31.

[0024] In the present invention, further, one end of the moving block 113 close to the moving cavity 114 is connected with a first guiding slider. A first guiding chute is arranged on the inner side wall of the moving cavity 114 at a position corresponding to the first guiding slider. By adopting the above technical solution, the movement of the moving block 113 drives the first guiding slider to slide inside the first guiding chute. With the sliding cooperation of the first guiding slider and the first guiding chute, a guiding effect can be provided for the movement of the moving block 113, improving the stability of the movement of the moving block 113.

[0025] When this embodiment is in use and sewage needs to be treated, the sewage is injected into the interior of the box body 1 through the water inlet pipe 8. The grille body 6 can filter the injected sewage. When the grille body 6 needs to be cleaned after the sewage treatment is completed, first move the pressing plate 111 in the opposite direction of the box body 1. The movement of the pressing plate 111 drives the moving block 113 to move inside the moving cavity 114. The movement of the moving block 113 compresses the third spring 112. Then place the receiving box 31 above the placing plate 32 and move it. When the receiving box 31 fits against the outer side wall of the box body 1, the discharge pipe 10 is inserted into the annular hole 33 accordingly. Then release the pressing plate 111. The third spring 112 returns to its original shape without external force, driving the moving block 113 to move, and further driving the pressing plate 111 to move to press against the receiving box 31. Then open the valve on the discharge pipe 10, and then use the pushing and cleaning mechanism 7 to perform a pushing and cleaning operation on the grille body 6. The impurities discharged through the discharge pipe 10 after cleaning fall into the receiving box 31 for collection. Then use the air jet cleaning mechanism 5 to perform an air jet and re-cleaning operation on the grille body 6. When the impurities inside the receiving box 31 need to be processed after the grille body 6 is cleaned, first remove the receiving box 31 from the placing plate 32, move the receiving box 31 to the impurity treatment site, then rotate and remove the sealing cover 35, and then pour out the impurities inside the receiving box 31 through the discharge pipe 34, which is convenient for the operator to collect and process the impurities; Embodiment 2

[0026] The difference between this embodiment and Embodiment 1 is that the sealing assembly 9 includes a moving rod 91, a second spring 92, a fixing plate 93, a pressing rod 94 and a sealing plate 95. A fixing plate 93 is connected to the inner side wall of the receiving box 31. A moving rod 91 is arranged on one side of the fixing plate 93. A second spring 92 is connected between the moving rod 91 and the fixing plate 93. A sealing plate 95 is connected to one end of the moving rod 91. A pressing rod 94 is connected to one end of the discharge pipe 10 close to the sealing plate 95. Further in the present invention, a second guiding slider is connected to the side of the moving rod 91 close to the receiving box 31, and a second guiding chute is arranged on the inner side wall of the receiving box 31 at a position corresponding to the second guiding slider. By adopting the above technical solution, the movement of the moving rod 91 drives the second guiding slider to slide inside the second guiding chute. With the sliding cooperation of the second guiding slider and the second guiding chute, it can provide a guiding effect for the movement of the moving rod 91 and improve the stability of the movement of the moving rod 91.

[0027] Further in the present invention, a sealing ring is connected to the side of the sealing plate 95 close to the discharge pipe 10, and an annular sealing groove is arranged on the inner side wall of the receiving box 31 at a position corresponding to the sealing ring. By adopting the above technical solution, the movement of the sealing plate 95 drives the movement of the sealing ring, which is clamped into the internal of the annular sealing groove. Under the action of the sealing ring and the annular sealing groove, it is possible to avoid the existence of a gap between the sealing plate 95 and the receiving box 31, and thus it is possible to avoid the smell emitted by the impurities inside the receiving box 31 from diffusing into the surrounding environment through the gap.

[0028] When this embodiment is in use, during the process of inserting the discharge pipe 10 into the internal of the annular hole 33, the abutting rod 94 is driven to move. The movement of the abutting rod 94 drives the movement of the sealing plate 95. The movement of the sealing plate 95 drives the movement of the moving rod 91 along the fixing plate 93. The movement of the moving rod 91 compresses the second spring 92, avoiding the influence of the sealing plate 95 on the insertion operation of the discharge pipe 10. Subsequently, when the receiving box 31 is removed from the placing plate 32, the discharge pipe 10 and the abutting rod 94 are separated from the receiving box 31. The second spring 92 returns to its original state without external force, driving the movement of the moving rod 91. The movement of the moving rod 91 drives the movement of the sealing plate 95 to fit against the inner side wall of the receiving box 31. Under the action of the sealing plate 95, it is possible to avoid the peculiar smell emitted by the sundries inside the receiving box 31 from diffusing into the surrounding environment through the annular hole 33, avoiding the pollution of the surrounding environment and the discomfort of the surrounding personnel. Embodiment 3

[0029] The difference between this embodiment and Embodiment 1 and Embodiment 2 lies in that: the filtering assembly 2 includes a filter mesh cover 21 and a bottom frame 28. A filter mesh cover 21 is arranged above the box body 1 and outside the components of the air jet cleaning mechanism 5. One end of the filter mesh cover 21 close to the box body 1 is connected with a bottom frame 28. Furthermore, in the present invention, the filtering assembly 2 further includes a top plate 22, an inserting rod 23, a fixing block 24, a pulling rod 25, a first spring 26 and an inserting slot 27. A top plate 22 is connected above the box body 1 and on one side of the filter mesh cover 21. A fixing block 24 is connected above the box body 1. An inserting rod 23 is inserted into the fixing block 24. A first spring 26 is connected between the fixing block 24 and the inserting rod 23. One end of the inserting rod 23 and inside the first spring 26 is connected with a pulling rod 25. An inserting slot 27 is arranged on the side wall of the bottom frame 28 corresponding to the position of the inserting rod 23. By adopting the above technical solution, pulling the pulling rod 25 drives the movement of the inserting rod 23 to be received into the fixing block 24. The movement of the inserting rod 23 compresses the first spring 26. After moving the bottom frame 28 to fit against the upper part of the box body 1 and the side wall of the top plate 22, releasing the pulling rod 25, the first spring 26 returns to its original state without external force, driving the movement of the inserting rod 23 to be inserted into the inserting slot 27. Under the action of the inserting rod 23 and the top plate 22, the bottom frame 28 can be limited and fixed.

[0030] Furthermore, in the present invention, both sides of one end of the inserting rod 23 close to the fixing block 24 are connected with limiting sliders, and limiting sliding grooves are arranged on the inner side wall of the fixing block 24 corresponding to the positions of the limiting sliders. By adopting the above technical solution, the insertion rod 23 moves to drive the limit slider to move inside the limit chute. When the limit slider moves and fits against the side wall of the limit chute, the limit slider is blocked and stops moving, thereby preventing the insertion rod 23 from continuing to move and avoiding the insertion rod 23 from detaching from the fixed block 24.

[0031] When this embodiment is in use, pulling the pull rod 25 drives the insertion rod 23 to move and retract into the fixed block 24. The insertion rod 23 moves to compress the first spring 26. After moving the bottom frame 28 to fit against the upper part of the box body 1 and the side wall of the top plate 22, the pull rod 25 is released. The first spring 26 loses the external force and returns to its original shape, driving the insertion rod 23 to move and insert into the insertion slot 27. Under the action of the insertion rod 23 and the top plate 22, the bottom frame 28 can be limited and fixed, so that the filter screen 21 can be installed around the air jet cleaning mechanism 5. During the subsequent use of the air jet cleaning mechanism 5, under the action of the filter screen 21, dust and other impurities in the external environment can be prevented from being blown onto the grille body 6 under the action of the air jet cleaning mechanism 5, causing secondary pollution to the grille body 6.

[0032] In the present invention, the structure and principle of the air jet cleaning mechanism 5 composed of a partition board, a motor, a threaded rod, a threaded sleeve, a support rod, a jet nozzle, a blower, an air outlet pipe, and a hose have been disclosed in a grille with self-cleaning function for sewage treatment with the Chinese patent application number 202120374233.3. Its working principle is: a partition board is fixedly connected inside the box body 1 and at the top of the grille body 6. The right side of the top of the partition board is fixedly connected with a motor. The output end of the motor is fixedly connected with a threaded rod. The end of the threaded rod away from the motor is fixedly connected with the top of the left side of the inner cavity of the box body 1 through a bearing. The left side of the surface of the threaded rod is threadedly connected with a threaded sleeve. The bottom of the threaded sleeve is fixedly connected with a support rod. The end of the support rod away from the threaded sleeve penetrates to the bottom of the partition board and is fixedly connected with a jet nozzle. The right side of the top of the box body 1 is fixedly connected with a blower. The left side of the blower is communicated with an air outlet pipe. The end of the air outlet pipe away from the blower penetrates to the top of the inner cavity of the box body 1 and is communicated with a hose. The end of the hose away from the air outlet pipe is communicated with the back of the jet nozzle. When in use, the motor and the blower are turned on. The motor drives the threaded rod to rotate. The threaded rod drives the threaded sleeve to move left and right. The threaded sleeve drives the support rod to move. The support rod drives the jet nozzle to move. The blower transports gas to the jet nozzle through the air outlet pipe and the hose, and the jet nozzle cleans the grille body 6 again, thereby completing the self-cleaning work of the grille body 6.

[0033] The structure and principle of the material pushing and cleaning mechanism 7 composed of a support plate, a hydraulic cylinder, a hydraulic rod, and a push plate in the present invention have been disclosed in a sewage treatment grille with self-cleaning function disclosed in Chinese Patent Application No. 202120374233.3. Its working principle is as follows: A support plate is fixedly connected to the top of the left side of the box body 1, a hydraulic cylinder is fixedly connected to the top of the support plate, the output end of the hydraulic cylinder is fixedly connected to a hydraulic rod, and the end of the hydraulic rod away from the hydraulic cylinder penetrates to the left side of the top of the grille body 6 and is fixedly connected to a push plate. During use, the hydraulic cylinder is started, the hydraulic cylinder drives the hydraulic rod to move to the right, and the hydraulic rod drives the push plate to move, thereby cleaning the top of the grille body 6.

[0034] Working principle and usage process of the present invention: Pull the pull rod 25 of the present invention to drive the insertion rod 23 to move and retract into the fixed block 24. The movement of the insertion rod 23 compresses the first spring 26. After moving the bottom frame 28 to fit above the box body 1 and the side wall of the top plate 22, release the pull rod 25. The first spring 26 loses the external force and returns to its original state, driving the insertion rod 23 to move and insert into the insertion slot 27. Under the action of the insertion rod 23 and the top plate 22, the bottom frame 28 can be limited and fixed, so that the filter screen cover 21 can be installed around the jet cleaning mechanism 5. When sewage needs to be treated, inject the sewage into the box body 1 through the water inlet pipe 8. The grid body 6 can filter and treat the injected sewage. When the grid body 6 needs to be cleaned after the sewage treatment is completed, first move the pressing plate 111 in the opposite direction of the box body 1. The movement of the pressing plate 111 drives the moving block 113 to move inside the moving cavity 114. The movement of the moving block 113 compresses the third spring 112. Then place the receiving box 31 above the placing plate 32 and move it. When the receiving box 31 fits against the outer side wall of the box body 1, the discharge pipe 10 is inserted into the annular hole 33 accordingly. During the process of the discharge pipe 10 being inserted into the annular hole 33, it drives the abutting rod 94 to move. The movement of the abutting rod 94 drives the sealing plate 95 to move. The movement of the sealing plate 95 drives the moving rod 91 to move along the fixing plate 93. The movement of the moving rod 91 compresses the second spring 92 to prevent the sealing plate 95 from affecting the insertion operation of the discharge pipe 10. Then release the pressing plate 111. The third spring 112 loses the external force and returns to its original state, driving the moving block 113 to move, and further driving the pressing plate 111 to move to perform a pressing operation on the receiving box 31. Then open the valve on the discharge pipe 10, and then use the pushing and cleaning mechanism 7 to perform a pushing and cleaning operation on the grid body 6. The impurities discharged through the discharge pipe 10 after cleaning fall into the receiving box 31 for collection. Then use the jet cleaning mechanism 5 to perform a jet re-cleaning operation on the grid body 6. During the process of the jet cleaning mechanism 5, under the action of the filter screen cover 21, it can prevent dust and other impurities in the external environment from being blown onto the grid body 6 under the action of the jet cleaning mechanism 5, causing secondary pollution to the grid body 6. When the impurities in the receiving box 31 need to be treated after the grid body 6 is cleaned, first remove the receiving box 31 from the placing plate 32. The discharge pipe 10 and the abutting rod 94 are separated from the receiving box 31 accordingly. The second spring 92 loses the external force and returns to its original state, driving the moving rod 91 to move. The movement of the moving rod 91 drives the sealing plate 95 to move and fit against the inner side wall of the receiving box 31. Under the action of the sealing plate 95, it can prevent the odor emitted by the sundries inside the receiving box 31 from diffusing to the surrounding environment through the annular hole 33, avoiding pollution of the surrounding environment and discomfort of the surrounding personnel. Then move the receiving box 31 to the impurity treatment site, and then rotate and remove the sealing cover 35. Then pour out the impurities inside the receiving box 31 through the discharge pipe 34, which is convenient for the operator to collect and treat the impurities.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning grille device for a sewage treatment plant, comprising a box body, characterized in that: The lower part of the box body is connected to a supporting leg, the interior of the box body is connected to a grille body, a pushing and cleaning mechanism is arranged on the side wall of the box body and above the grille body, a water inlet pipe is connected on the side wall of the box body and above the pushing and cleaning mechanism, a receiving assembly is arranged on the outer side wall of the box body, a tightening assembly is arranged on the receiving assembly, a discharge pipe is connected on the side wall of the box body and inside the receiving assembly, a sealing assembly is arranged inside the receiving assembly and on one side of the discharge pipe, an air jet cleaning mechanism is arranged on the box body and above the grille body, and a filter assembly is arranged above the box body.

2. The self-cleaning grille device for a sewage treatment plant according to claim 1, characterized in that: The receiving assembly includes a receiving box, a placement plate, an annular hole, a discharge pipe and a sealing cover. The outer wall of the box body is connected to the placement plate, a receiving box is arranged above the placement plate, an annular hole is arranged on the side wall of the receiving box, a discharge pipe is connected above the receiving box, and a sealing cover is connected to the end of the discharge pipe away from the receiving box.

3. The self-cleaning grille device for a sewage treatment plant according to claim 2, characterized in that: The clamping assembly includes a clamping plate, a third spring, a moving block and a moving cavity. The moving cavity is arranged above the placement plate, the moving block is arranged inside the moving cavity, the third spring is connected between the moving block and the moving cavity, and the clamping plate is connected above the moving block.

4. The self-cleaning grille device for a sewage treatment plant according to claim 3, characterized in that: One end of the moving block close to the moving cavity is connected with a first guide sliding block, and a first guide sliding groove is arranged on the inner side wall of the moving cavity at a position corresponding to the first guide sliding block.

5. The self-cleaning grille device for a sewage treatment plant according to claim 2, characterized in that: The sealing assembly includes a moving rod, a second spring, a fixed plate, a push rod and a sealing plate. The fixed plate is connected to the inner wall of the receiving box, a moving rod is provided on one side of the fixed plate, a second spring is connected between the moving rod and the fixed plate, one end of the moving rod is connected to the sealing plate, and the push rod is connected to the end of the discharge pipe close to the sealing plate.

6. The self-cleaning grille device for a sewage treatment plant according to claim 5, characterized in that: A second guide slide block is connected to one side of the moving rod close to the receiving box, and a second guide slot is arranged on the inner side wall of the receiving box at a position corresponding to the second guide slide block.

7. The self-cleaning grille device for a sewage treatment plant according to claim 5, characterized in that: A sealing ring is connected to one side of the sealing plate close to the discharge pipe, and an annular sealing groove is arranged on the inner side wall of the receiving box at a position corresponding to the sealing ring.

8. The self-cleaning grille device for a sewage treatment plant according to claim 1, characterized in that: The filter assembly comprises a filter screen cover and a bottom frame. The filter screen cover is arranged above the box body and on the periphery of the components of the jet cleaning mechanism. One end of the filter screen cover close to the box body is connected to the bottom frame.

9. The self-cleaning grille device for a sewage treatment plant according to claim 8, characterized in that: The filter assembly also includes a top plate, a plug-in rod, a fixed block, a pull rod, a first spring and a plug-in slot. The top plate is connected to the top of the box and located on one side of the filter screen cover. The top of the box is connected to the fixed block. The plug-in rod is plugged into the interior of the fixed block. The first spring is connected between the fixed block and the plug-in rod. A pull rod is connected to one end of the plug-in rod and located inside the first spring. A plug-in slot is provided on the side wall of the bottom frame at a position corresponding to the plug-in rod.

10. The self-cleaning grille device for a sewage treatment plant according to claim 9, characterized in that: Both sides of one end of the plug-in rod close to the fixed block are connected to limit sliding blocks, and limit sliding grooves are arranged on the inner side wall of the fixed block at positions corresponding to the limit sliding blocks.

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