Inner inflow grating device capable of removing peculiar smell and preventing blockage

Abstract

The invention relates to the technical field of sewage treatment equipment, in particular to an inner inflow grating device capable of removing peculiar smell and preventing blockage. The device comprises a flushing assembly which comprises a flat nozzle and a telescopic mechanism; the flat spray head is located on the outer side of the screen plate in the ascending section of the inner inflow grating and faces the screen plate, and the length direction of the flat spray head is parallel to the ascending direction of the screen plate; the free end of the telescopic mechanism is fixedly connected with the flat spray head, and the telescopic mechanism can drive the flat spray head to do reciprocating rectilinear motion in the line direction perpendicular to the net plate. Sundries filtered out by the grating net plate can be effectively removed, so that the grating net plate is prevented from being blocked, and peculiar smell is prevented from being generated.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and particularly relates to an inner-flow grille device for removing odor and preventing blockage. Background Art

[0002] An inner-flow grille is a pre-pump filtration device commonly used in sewage treatment plants. Sewage flows in from the middle of the grille and discharges outward through the mesh plates on both sides of the grille, thereby intercepting the debris in the sewage inside the mesh plates and preventing the debris from entering the subsequent pump body and causing blockage of the pump body (especially hair, fiber, etc. that are likely to entangle the shaft of the pump). Accordingly, it is necessary to clean the debris intercepted inside the mesh plates in a timely manner to maintain the filtering effect of the mesh plates.

[0003] However, the cleaning effect of the existing water flow flushing method is poor, especially for the filamentous debris (such as hair, fiber) inserted into the holes of the mesh plates, it is difficult to achieve removal; in addition, these filamentous debris are also prone to adhering to other dirt, and when they stay in the holes of the mesh plates for a long time, it is easy to cause odor and hinder the water flow through the mesh plates. Summary of the Invention

[0004] The purpose of the present invention is to provide an inner-flow grille device for removing odor and preventing blockage, which can at least partially overcome the above technical problems, can effectively remove the debris filtered by the grille mesh plates, and thus avoid blockage of the grille mesh plates and prevent the generation of odor.

[0005] The present invention provides an inner-flow grille device for removing odor and preventing blockage, which includes: a flushing assembly, the flushing assembly includes a flat nozzle and a telescopic mechanism; the flat nozzle is located outside the mesh plate in the upward section of the inner-flow grille and faces the mesh plate, and the length direction of the flat nozzle is parallel to the upward direction of the mesh plate; the free end of the telescopic mechanism is fixedly connected to the flat nozzle and can drive the flat nozzle to reciprocate linearly perpendicular to the upward direction of the mesh plate.

[0006] Further, a first guide groove is arranged inside the inner-flow grille, and the flat nozzle is higher than the first guide groove; a baffle is arranged above the first guide groove, and the bottom of the baffle is fixedly connected to one side of the first guide groove close to the mesh plate in the downward section of the inner-flow grille.

[0007] Further, the upper part of the baffle is inclined towards the mesh plate in the downward section; a first cutter is slidably installed on the side of the baffle facing the mesh plate in the upward section, and the relative sliding direction of the two is parallel to the inclination direction of the baffle; A first return spring is connected between the first cutter and the baffle, and the first return spring makes the upper part of the first cutter abut against the inner side of the mesh plate in the downward section.

[0008] Further, a second guide groove is provided on the outer side of the downstream section, and a guide plate is provided above the second guide groove. The bottom of the guide plate is fixedly connected to one side of the second guide groove close to the wire mesh of the downstream section; the upper part of the guide plate is inclined towards the wire mesh of the downstream section; a second cutting knife is slidably installed on the side of the guide plate away from the wire mesh of the downstream section, and the relative sliding direction of the two is parallel to the inclined direction of the guide plate; a second return spring is connected between the second cutting knife and the guide plate, and the second return spring makes the upper part of the second cutting knife abut against the outer side of the wire mesh of the downstream section.

[0009] Further, the inner inflow grille device further includes: a filter plate, which is fixedly installed in the upstream water channel of the inner inflow grille, and the upper part of the filter plate is inclined towards the inner inflow grille.

[0010] Further, the inner inflow grille device further includes: a slag scraping assembly for scraping the sundries intercepted by the filter plate.

[0011] Further, the slag scraping assembly includes a guide rod, a crank, a connecting rod, a swing rod and a guide sleeve; the swing rod includes a first section and a second section with intersecting ends; the guide rod is fixedly arranged above the water channel and parallel to the inclined direction of the filter plate; the guide sleeve is slidably installed on the guide rod, and the guide sleeve extends along the width direction of the water channel with a shaft rod, a first stop pin and a second stop pin; one end of the crank is hinged to the end of the guide rod away from the water channel, and the other end of the crank is hinged to one end of the connecting rod; the other end of the connecting rod is hinged to the end of the first section away from the second section; the connecting part of the first section and the second section is hinged to the shaft rod, and the second section is located between the first stop pin and the second stop pin; a slag scraping bucket is fixedly connected to the end of the second section away from the first section.

[0012] Further, the upper part of the filter plate is higher than the water level of the water channel, and a third guide groove is fixedly connected to one side of the upper part of the filter plate close to the inner inflow grille.

[0013] Further, the inner inflow grille device further includes: a suction assembly for sucking the air inside the inner inflow grille.

[0014] Further, the suction assembly includes a cylinder block, which is fixedly installed on one side of the water channel and parallel to the guide rod. An air inlet pipe and an air outlet pipe are connected to one end of the cylinder block, and the other end is connected to the air; a push rod parallel to the guide rod extends on the guide sleeve, and a piston is fixedly installed at the end of the push rod away from the guide sleeve. The piston is slidably installed inside the cylinder block; the air inlet pipe is connected to the inside of the inner inflow grille.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. For the internal inflow grille device for removing odors and preventing blockages provided by the embodiments of the present disclosure, by adjusting the reciprocating frequency of the flat nozzle, when a certain mesh plate moves upward through the height position of the nozzle, any point on it can be flushed multiple times, thereby achieving the purpose of strengthening the flushing effect; 2. For the internal inflow grille device for removing odors and preventing blockages provided by the embodiments of the present disclosure, by providing a first cutter and a second cutter, filamentous debris inserted into the holes of the mesh plate can be cut off in the downward section of the internal inflow grille, thereby ensuring the filtering effect of the mesh plate; 3. For the internal inflow grille device for removing odors and preventing blockages provided by the embodiments of the present disclosure, by providing a filter plate, the water flow entering the internal inflow grille can be preliminarily filtered; by providing a corresponding slag-grabbing assembly, large-sized debris intercepted by the filter plate can be grabbed in a timely manner, thereby ensuring the filtering effect of the filter plate and preventing the water level from rising upstream due to the blockage of the holes of the filter plate, resulting in large-sized floating debris overflowing the filter plate and entering the inner side of the internal inflow grille. Description of the Drawings

[0016] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not constitute a limitation to the embodiments of the present invention. In the drawings: Figure 1 It is a three-dimensional structural schematic diagram of the internal inflow grille device for removing odors and preventing blockages drawn according to the embodiments of the present invention; Figure 2 For Figure 1 The partial enlarged view of area A drawn; Figure 3 It is a path schematic diagram of the flat nozzle flushing the mesh plate drawn according to the embodiments of the present invention; Figure 4 It is one of the cross-sectional views of the internal inflow grille device for removing odors and preventing blockages drawn according to the embodiments of the present invention; Figure 5 For Figure 4 The partial enlarged view of area B drawn; Figure 6 It is another cross-sectional view of the internal inflow grille device for removing odors and preventing blockages drawn according to the embodiments of the present invention; Figure 7 It is the third cross-sectional view of the internal inflow grille device for removing odors and preventing blockages drawn according to the embodiments of the present invention; Figure 8 It is the fourth cross-sectional view of the internal inflow grille device for removing odors and preventing blockages drawn according to the embodiments of the present invention; Figure 9 It is the fifth cross-sectional view of the internal inflow grille device for removing odors and preventing blockages drawn according to the embodiments of the present invention; Figure 10 It is a kinematic schematic diagram of the slag-grabbing component drawn according to an embodiment of the present invention.

[0017] Marks in the attached drawings and corresponding names of components: 1 - Inner inflow grille; 11 - Mesh plate; 12 - Sprocket; 21 - Flat nozzle; 22 - Telescopic mechanism; 221 - Free end; 31 - First guide groove; 32 - Baffle; 33 - First cutter; 34 - First return spring; 35 - Second guide groove; 36 - Guide plate; 37 - Second cutter; 38 - Second return spring; 41 - Filter plate; 51 - Guide rod; 52 - Crank; 53 - Connecting rod; 54 - Rocker arm; 541 - First section; 542 - Second section; 55 - Guide sleeve; 551 - Shaft rod; 552 - First retaining pin; 553 - Second retaining pin; 554 - Push rod; 56 - Slag-grabbing bucket; 57 - Third guide groove; 61 - Cylinder block; 62 - Inlet pipe; 63 - Outlet pipe; 7 - Water channel; 8 - Filamentous debris. Specific embodiments

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with embodiments and the attached drawings. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and do not limit the present invention. It should be noted that the present invention has been in the actual R & D and use stage.

[0019] The inner inflow grille is a pump front filtration device commonly used in sewage treatment plants. Sewage flows in from the middle of the grille and discharges outward through the mesh plates on both sides of the grille, thereby intercepting the debris in the sewage inside the mesh plate, and thus avoiding the debris from entering the subsequent pump body and causing blockage of the pump body and even the pipeline (especially hair, fibrous materials, etc. that are easy to wind around the shaft rod of the pump). Correspondingly, it is necessary to clean the debris intercepted inside the mesh plate in time to maintain the filtration effect of the mesh plate.

[0020] The inward flow grille generally includes multiple mesh plates, and each mesh plate is arranged in an array along the path of the chain drive and rotates along the path of the chain drive under the drive of the chain drive. In the prior art, a guide groove is usually provided inside the inward flow grille. When the mesh plate moves upward to the top and the inner side of the mesh plate faces downward, the sundries intercepted on the inner side of the mesh plate fall into the guide groove under the action of gravity and are then discharged. However, relying solely on the gravity of the sundries, the cleaning effect is poor. Therefore, there is also a method of using water flow to wash the mesh plate to forcibly remove the sundries intercepted on the inner side of the mesh plate (using a flat nozzle to generate a strip-shaped water flow, and the length direction of the strip-shaped water flow is perpendicular to the upward movement direction of the mesh plate). However, such a water flow washing method can only wash the passing mesh plate once, and the washing effect is poor. In addition, it is difficult to remove the filamentous sundries (such as hair and fibrous materials) inserted into the holes of the mesh plate by such a water flow washing means; moreover, these filamentous sundries are also prone to hanging other dirt (especially organic matter), and in the case of their long-term retention in the holes of the mesh plate, it is easy to cause peculiar smell and hinder the water flow through the mesh plate.

[0021] In order to improve the cleaning effect of the sundries intercepted by the mesh plate, ensure the filtering effect of the mesh plate, and avoid the mesh plate from being blocked or even generating peculiar smell, the present invention provides an inward flow grille device for removing peculiar smell and preventing blockage, which is used to at least partially overcome the above technical problems and achieve the purpose of effectively removing the sundries filtered by the grille mesh plate, avoiding the grille mesh plate from being blocked, and preventing the generation of peculiar smell.

[0022] Embodiment 1: As Figures 1 to 5 shown, this embodiment provides an inward flow grille device for removing peculiar smell and preventing blockage, and the device includes: A flushing assembly, the flushing assembly includes a flat nozzle 21 and a telescopic mechanism 22; the flat nozzle 21 is located outside the mesh plate 11 in the upward movement section of the inward flow grille 1 and faces the mesh plate 11, and the length direction of the flat nozzle 21 is parallel to the upward movement direction of the mesh plate 11; the free end 221 of the telescopic mechanism 22 is fixedly connected to the flat nozzle 21 and can drive the flat nozzle 21 to reciprocate linearly perpendicular to the upward movement direction of the mesh plate 11.

[0023] The telescopic mechanism 22 can be a linear motor, a cylinder, a hydraulic cylinder, a scissor telescopic mechanism 22, a crank 52 slider mechanism, etc., and the present application is not limited thereto.

[0024] Thus, the water flow ejected by the flat nozzle 21 is in a vertical strip shape. When it moves reciprocally in a straight line along the horizontal direction, a strip-shaped ejection path is formed. Since each mesh plate 11 continuously rotates along the chain drive path, through the motion synthesis of the upward movement of the mesh plate 11 and the horizontal linear movement of the flat nozzle 21, by adjusting the reciprocating frequency of the flat nozzle 21, when a certain mesh plate 11 moves upward through the height position of the nozzle, any point on it can be flushed multiple times, thereby achieving the purpose of strengthening the flushing effect. Specifically, as Figure 3 shown, for the convenience of understanding, taking the upward moving mesh plate 11 as a reference object, the flat nozzle 21 vertically moves downward relative to the mesh plate 11 and simultaneously moves horizontally in a reciprocating straight line. The figure shows the situation where any point P on the mesh plate 11 is just flushed twice by the water flow ejected by the flat nozzle 21. In addition, as the flat nozzle 21 moves reciprocally in a straight line, the flushing position acting on the mesh plate 11 changes, thereby enabling each mesh plate 11 in the upward section to have a small offset and cause vibration, which is beneficial to making the sundries stuck in the holes of the mesh plate 11 fall off.

[0025] It should be understood that the speed of the chain drive driving the rotation of the mesh plate 11 is usually fixed (and relatively slow). Then, the faster the reciprocating linear movement frequency of the flat nozzle 21 perpendicular to the upward direction of the mesh plate 11, when the mesh plate 11 moves upward through the height position where the flat nozzle 21 is located, the number of times any point P on it is flushed also increases accordingly. However, correspondingly, the time for point P to be flushed once is shorter. Therefore, usually, the reciprocating frequency of the flat nozzle 21 is adjusted so that the number of times point P is flushed is 2 - 4 times, and the rotational speed of the chain drive driving the rotation of the mesh plate 11 is adjusted to ensure the duration of point P being flushed once to ensure the flushing effect.

[0026] More preferably, a first guide groove 31 is provided inside the inner inflow grille 1, and the flat nozzle 21 is higher than the first guide groove 31; A baffle 32 is provided above the first guide groove 31, and the bottom of the baffle 32 is fixedly connected to one side of the first guide groove 31 close to the mesh plate 11 in the downward section of the inner inflow grille 1.

[0027] Thus, the first guide groove 31 can be used to receive and export the sundries flushed by the flat nozzle 21. The setting of the baffle 32 can block the sundries ejected farther by the water flow and make them fall into the first guide groove 31, preventing these sundries ejected farther from adhering to the mesh plate 11 at the corresponding height position in the downward section, thereby ensuring the export efficiency of the sundries flushed from the upper and lower section mesh plates 11. It should be understood that the first guide groove 31 has a certain slope along its length direction, thereby promoting the discharge of the sundries falling into the first guide groove 31.

[0028] Embodiment 2: As Figures 1 to 5As shown, this embodiment is based on Embodiment 1, with the difference that in this embodiment: The upper part of the baffle 32 inclines towards the mesh plate 11 of the downward section; A first cutter 33 is slidably installed on the side of the baffle 32 facing the mesh plate 11 of the upward section, and the relative sliding direction of the two is parallel to the inclination direction of the baffle 32; A first return spring 34 is connected between the first cutter 33 and the baffle 32, and the first return spring 34 causes the upper part of the first cutter 33 to abut against the inner side of the mesh plate 11 of the downward section.

[0029] Thus, when the filamentous debris 8 (such as hair, fiber) inserted into the holes of the mesh plate 11 passes downward through the upper part of the first cutter 33, it is "cut off" (actually, the shearing effect generated by the shearing force) under the abutment of the first cutter 33 and the inner side of the mesh plate 11, and then the filamentous debris 8 inserted into the holes of the mesh plate 11 is separated from the mesh plate 11. Obviously, the section of the filamentous debris 8 located inside the mesh plate 11 of the downward section will slide along the first cutter 33 into the first guide groove 31 and then be discharged (after the water flow from the flat nozzle 21 passing through the mesh plate 11 of the upward section reaches the baffle 32 and / or the first cutter 33, it is also beneficial for these sections of the filamentous debris 8 and the debris sprayed farther and reaching the baffle 32 and / or the first cutter 33 to flow into the guide groove as soon as possible). Preferably, a blade part is provided at the upper part of the first cutter 33, and the blade part abuts against the inner side of the mesh plate 11 of the downward section, thereby strengthening the shearing effect on the filamentous debris 8 with stronger toughness.

[0030] Furthermore, a second guide groove 35 is provided outside the downward section, and a guide plate 36 is provided above the second guide groove 35. The bottom of the guide plate 36 is fixedly connected to the side of the second guide groove 35 close to the mesh plate 11 of the downward section; the upper part of the guide plate 36 inclines towards the mesh plate 11 of the downward section; A second cutter 37 is slidably installed on the side of the guide plate 36 away from the mesh plate 11 of the downward section, and the relative sliding direction of the two is parallel to the inclination direction of the guide plate 36; A second return spring 38 is connected between the second cutter 37 and the guide plate 36, and the second return spring 38 causes the upper part of the second cutter 37 to abut against the outer side of the mesh plate 11 of the downward section.

[0031] Accordingly, the second guide groove 35 can be used to receive and discharge the filamentous debris 8 segments located outside the downward section of the mesh plate 11 after being cut by the first cutter 33, preventing these filamentous debris 8 segments from directly falling into the outflow water below (referring to the water flowing out from both sides after passing through the inner inflow grille 1), and moreover, for some filamentous debris 8 that still does not separate from the mesh plate 11 after being cut by the first cutter 33, the segments located outside the downward section of the mesh plate 11 can be cut off, thereby ensuring the removal effect of the filamentous debris 8. Preferably, a blade portion is provided at the upper part of the second cutter 37, and the blade portion abuts against the outside of the downward section of the mesh plate 11, thereby strengthening the shearing effect on the filamentous debris 8 with stronger toughness. It should be understood that the first cutter 33 can also be lower than the second cutter 37, and correspondingly, the second cutter 37 first shears the filamentous debris 8 on the downward mesh plate 11.

[0032] It should be noted that the reciprocating flat nozzle 21 can wash the mesh plate 11 multiple times to wash down the debris (especially solid particles) stuck in the holes of the mesh plate 11. Thus, there is no such debris stuck in the holes of the mesh plate 11 passing through the first cutter 33 and the second cutter 37 downward, thereby preventing the parts of the first cutter 33 and the second cutter 37 abutting against the downward section of the mesh plate 11 from being damaged by such debris (especially in the case where there is a blade portion, the blade portion is easily damaged, and further, the first cutter 33 and / or the second cutter 37 cannot normally shear the filamentous debris 8 due to a notch in the blade portion) or being pushed back (during the retraction process, the first cutter 33 and / or the second cutter 37 no longer abut against the mesh plate 11, and thus cannot effectively shear the filamentous debris 8 at this time).

[0033] Embodiment 3: As Figures 1 to 10 shown, this embodiment is based on Embodiment 1, the difference being that in this embodiment, the inner inflow grille device further includes a filter plate 41, the filter plate 41 is fixedly installed in the upstream water channel 7 of the inner inflow grille 1, and the upper part of the filter plate 41 is inclined towards the inner inflow grille 1.

[0034] It should be understood that the filter plate 41 serves as a primary filtering device upstream of the inner inflow grille 1, and the hole size of the filter plate 41 is larger than that of the mesh plate 11. Thus, larger debris can be intercepted by the filter plate 41 to prevent it from entering the inside of the inner inflow grille 1, which is beneficial to ensuring the filtering effect of the inner inflow grille 1, avoiding the holes of the mesh plate 11 of the inner inflow grille 1 from being blocked by large-sized debris, and ensuring the smooth flow of water.

[0035] Furthermore, the inner inflow grille device further includes a slag-grabbing assembly, and the slag-grabbing assembly is used to grab the debris intercepted by the filter plate 41.

[0036] Thus, the slag scraping assembly timely grabs and removes the sundries intercepted by the filter plate 41, thereby ensuring the filtering effect of the filter plate 41 and preventing the water level from rising upstream due to the blockage of the holes in the filter plate 41, which may cause large-sized floating sundries to overflow the filter plate 41 and enter the inner side of the inner inflow grille 1.

[0037] Specifically, the slag scraping assembly includes a guide rod 51, a crank 52, a connecting rod 53, a swing rod 54, and a guide sleeve 55; the swing rod 54 includes a first section 541 and a second section 542 whose ends intersect; preferably, the first section 541 and the second section 542 are perpendicular. The guide rod 51 is fixedly arranged above the water channel 7 and is parallel to the inclination direction of the filter plate 41; the guide sleeve 55 is slidably installed on the guide rod 51, and the guide sleeve 55 extends along the width direction of the water channel 7 with a shaft rod 551, a first stop pin 552, and a second stop pin 553; one end of the crank 52 is hinged to the end of the guide rod 51 far from the water channel 7, and the other end of the crank 52 is hinged to one end of the connecting rod 53; the other end of the connecting rod 53 is hinged to the end of the first section 541 far from the second section 542; the connecting part of the first section 541 and the second section 542 is hinged to the shaft rod 551, and the second section 542 is located between the first stop pin 552 and the second stop pin 553; a slag scraping bucket 56 is fixedly connected to the end of the second section 542 far from the first section 541.

[0038] The upper part of the filter plate 41 is higher than the water level of the water channel 7, and a third guide groove 57 is fixedly connected to the side of the upper part of the filter plate 41 close to the inner inflow grille 1.

[0039] Thus, by rotating the crank 52, the slag scraping bucket 56 can grab the large-sized sundries intercepted by the filter plate 41 at a certain frequency, thereby realizing the sundry grabbing. Specifically, the operation process of this slag scraping assembly is as follows: Please refer to Figure 10 , Figure 10 which is the mechanism kinematic diagram of the slag scraping assembly. Among them, the dotted line represents the movement trajectory of the hook tip position of the slag scraping bucket 56 during the counterclockwise rotation of the crank 52. Correspondingly, Figures 6 to 9 shows the cross-sectional view of the inner inflow grille device when the hook tip position of the slag scraping bucket 56 is at each "turning point" on this movement trajectory during the rotation of the crank 52 (only the part where the slag scraping assembly is installed is shown). As Figure 6 shown, Figure 6In the figure, the slag grab bucket 56 is located at the upper right corner of the movement track. At this time, when the crank 52 is rotated counterclockwise, the swing rod 54 will rotate clockwise around the shaft rod 551 (because the rotational friction between the swing rod 54 and the shaft rod 551 is less than the sliding friction between the guide sleeve 55 and the guide rod 51. Based on the law of minimum resistance, in the slag grab assembly, first the swing rod 54 swings, and then the guide sleeve 55 slides along the guide rod 51) until the second section 542 is blocked by the first stop pin 552, and then the slag grab bucket 56 swings to the position as shown in Figure 7 ; After that, continue to rotate the crank 52 counterclockwise. Since the second section 542 is blocked by the first stop pin 552, the swing rod 54 cannot continue to rotate. Then the guide sleeve 55 slides downward along the guide rod 51, driving the slag grab bucket 56 to insert underwater along a trajectory parallel to the guide rod 51 (insert underwater to the position as shown in Figure 8 ). Obviously, during this process, the swinging action of the swing rod 54 before the insertion action avoids the area near the upstream of the filter plate 41 (referring to the area where floating debris gathers near the upstream of the filter plate 41); After that, continue to rotate the crank 52 counterclockwise. Based on the law of minimum resistance, the swing rod 54 will first rotate counterclockwise around the shaft rod 551 until the second section 542 is blocked by the second stop pin 553. At this time, the slag grab bucket 56 is located at the position as shown in Figure 9 . During this process, the hook tip of the slag grab bucket 56 inserts into the lower part of the filter plate 41 and grabs some debris deposited at the lower part of the filter plate 41; After that, continue to rotate the crank 52 counterclockwise. Since the second section 542 is blocked by the second stop pin 553, the swing rod 54 cannot continue to rotate. Then the guide sleeve 55 will slide upward along the guide rod 51, driving the hook tip of the slag grab bucket 56 to slide along the upstream side of the filter plate 41 to the top position of the filter plate 41 (since the guide rod 51 and the filter plate 41 are parallel, the upward movement trajectory of the slag grab bucket 56 is parallel to the filter plate 41. The end position of the upward movement of the slag grab bucket 56 is as shown in Figure 6 ). During this process, the slag grab bucket 56 can grab the debris (including deposited debris, suspended debris and floating debris) near the filter plate 41 and lift it to the water surface. Then, based on the inclined surface design of the slag grab bucket 56 (refer to Figure 1 Figure 6 , it can be seen that the slag grab bucket 56 is generally L-shaped, its side is a fence-shaped with water filtration function, thus reducing the resistance during the upward movement of the slag grab bucket 56, and the bottom plate is a smooth inclined surface, thus facilitating the discharge of the grabbed debris), and the grabbed debris quickly slides into the third guide groove 57.

[0040] ​It should be understood that in order to ensure that the slag-grabbing component operates according to the law of minimum resistance, the hinge joint between the swing rod 54 and the shaft rod 551 is kept well lubricated, while measures to increase friction (such as increasing the friction coefficient) are taken between the guide sleeve 55 and the guide rod 51, or a load is applied to the guide sleeve 55 to increase the running resistance difference (referring to increasing the running resistance difference between the rotation of the swing rod 54 relative to the shaft rod 551 and the sliding of the guide sleeve 55 relative to the guide rod 51).

[0041] Embodiment 4: This embodiment is based on Embodiment 3, and the difference is that in this embodiment, the inner inflow grille device further includes a suction assembly for sucking the air inside the inner inflow grille 1.

[0042] In the case of odor generation inside the inner inflow grille 1 (especially in summer with high temperature and when the water body contains organic debris, it is easy to generate odor. If there are filamentous debris 8 remaining in the holes of the mesh plate 11, these filamentous debris 8 are more likely to adhere to organic debris and then cause odor), the air inside the inner inflow grille 1 is sucked through the suction assembly, and then the odor gas is exported for separate subsequent treatment, which can effectively remove the odor generated by the inner inflow grille device, optimize the air environment at the location of the inner inflow grille 1, and thus facilitate the daily maintenance of the inner inflow grille device by the staff. It should be understood that the subsequent treatment of the odor gas can be carried out using an existing odor gas treatment system, and this application will not elaborate further.

[0043] Specifically, the suction assembly includes a cylinder block 61 fixedly installed on one side of the water channel 7 and parallel to the guide rod 51. An intake pipe 62 and an exhaust pipe 63 are connected to one end of the cylinder block 61, and the other end is in communication with the air. A push rod 554 parallel to the guide rod 51 extends from the guide sleeve 55, and a piston is fixedly installed at the end of the push rod 554 away from the guide sleeve 55. The piston is slidably installed inside the cylinder block 61. The intake pipe 62 is connected to the inside of the inner inflow grille 1.

[0044] Thus, during the process that the crank 52 rotates to drive the slag grab bucket 56 to grab slag, the reciprocating linear motion of the guide sleeve 55 along the guide rod 51 can drive the piston to perform reciprocating linear motion in the cylinder block 61, so as to enable the intake pipe 62 to suck the air inside the inner intake grille 1, and output the sucked odor gas from the outlet pipe 63 to the odor gas treatment system for subsequent treatment. In addition, the process that the guide sleeve 55 drives the piston to perform reciprocating linear motion in the cylinder block 61 increases the resistance to the relative sliding action of the guide sleeve 55 relative to the guide rod 51, which is beneficial to the slag grab bucket 56 of the slag grab assembly to operate according to the preset actions and trajectories. It should be understood that check valves are installed in both the intake pipe 62 and the outlet pipe 63, so that the gas can only enter the cylinder block 61 through the intake pipe 62 and be discharged through the outlet pipe 63.

[0045] In this application, the term "hinged" means that the two can only rotate relative to each other. For example, the rotational setting of a hole and a shaft rod can be achieved by setting a shoulder on the shaft and a limiting groove in the hole to limit the relative axial movement; the term "slidingly mounted" means that the two can only slide relative to each other, such as dovetail grooves, T-shaped grooves and other structures.

[0046] The specific embodiments described above further elaborate on the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An internal flow grille device for removing odors and preventing blockages, characterized in that, Including: A flushing component, the flushing component includes a flat nozzle (21) and a telescopic mechanism (22); the flat nozzle (21) is located outside the mesh plate (11) of the upstream section of the inner inlet flow grille (1) and faces the mesh plate (11), and the length direction of the flat nozzle (21) is parallel to the upstream direction of the mesh plate (11); the free end (221) of the telescopic mechanism (22) is fixedly connected to the flat nozzle (21), and can drive the flat nozzle (21) to reciprocate linearly perpendicular to the upstream direction of the mesh plate (11).

2. The inner inlet flow grille device according to claim 1, characterized in that A first guide groove (31) is provided inside the inner inlet flow grille (1), and the flat nozzle (21) is higher than the first guide groove (31); A baffle (32) is provided above the first guide groove (31), and the bottom of the baffle (32) is fixedly connected to one side of the first guide groove (31) close to the mesh plate (11) of the downstream section of the inner inlet flow grille (1).

3. The inner inlet flow grille device according to claim 2, characterized in that The upper part of the baffle (32) is inclined towards the mesh plate (11) of the downstream section; A first cutting knife (33) is slidably mounted on one side of the baffle (32) facing the mesh plate (11) of the upstream section, and the relative sliding direction between the two is parallel to the inclined direction of the baffle (32); A first return spring (34) is connected between the first cutting knife (33) and the baffle (32), and the first return spring (34) makes the upper part of the first cutting knife (33) abut against the inner side of the mesh plate (11) of the downstream section.

4. The inner inlet flow grille device according to claim 2, characterized in that A second guide groove (35) is provided outside the downstream section, and a guide plate (36) is provided above the second guide groove (35), and the bottom of the guide plate (36) is fixedly connected to one side of the second guide groove (35) close to the mesh plate (11) of the downstream section; the upper part of the guide plate (36) is inclined towards the mesh plate (11) of the downstream section; A second cutting knife (37) is slidably mounted on the side of the guide plate (36) away from the mesh plate (11) of the downstream section, and the relative sliding direction between the two is parallel to the inclined direction of the guide plate (36); A second return spring (38) is connected between the second cutting knife (37) and the guide plate (36), and the second return spring (38) makes the upper part of the second cutting knife (37) abut against the outside of the mesh plate (11) of the downstream section.

5. The inner flow-in grille device according to claim 1, characterized in that, It also includes: A filter plate (41), the filter plate (41) is fixedly installed in the upstream water channel (7) of the inner inlet flow grille (1), and the upper part of the filter plate (41) is inclined towards the inner inlet flow grille (1).

6. The inner flow-in grille device according to claim 5, characterized in that, It also includes: A slag grabbing component, which is used to grab the sundries intercepted by the filter plate (41).

7. The inner inlet flow grille device according to claim 6, characterized in that The slag-grabbing assembly includes a guide rod (51), a crank (52), a connecting rod (53), a swing rod (54) and a guide sleeve (55); the swing rod (54) includes a first section (541) and a second section (542) whose ends intersect. The guide rod (51) is fixedly arranged above the water channel (7) and parallel to the inclination direction of the filter plate (41); the guide sleeve (55) is slidably installed on the guide rod (51), and a shaft rod (551), a first stop pin (552) and a second stop pin (553) extend along the width direction of the water channel (7) on the guide sleeve (55); one end of the crank (52) is hinged to the end of the guide rod (51) far from the water channel (7), and the other end of the crank (52) is hinged to one end of the connecting rod (53); the other end of the connecting rod (53) is hinged to the end of the first section (541) far from the second section (542); the connecting part of the first section (541) and the second section (542) is hinged to the shaft rod (551), and the second section (542) is located between the first stop pin (552) and the second stop pin (553); a slag-grabbing bucket (56) is fixedly connected to the end of the second section (542) far from the first section (541).

8. The inner-inflow grille device according to claim 7, characterized in that The upper part of the filter plate (41) is higher than the water level of the water channel (7), and a third guide groove (57) is fixedly connected to the side of the upper part of the filter plate (41) close to the inner-inflow grille (1).

9. The inner flow-in grille device according to claim 7, characterized in that, It further includes: A suction assembly for sucking air inside the inner-inflow grille (1).

10. The inner-inflow grille device according to claim 9, characterized in that The suction assembly includes a cylinder block (61), the cylinder block (61) is fixedly installed on one side of the water channel (7) and parallel to the guide rod (51), an air inlet pipe (62) and an air outlet pipe (63) are connected to one end of the cylinder block (61), and the other end is in communication with the air. A push rod (554) parallel to the guide rod (51) extends on the guide sleeve (55), and a piston is fixedly installed at the end of the push rod (554) far from the guide sleeve (55), and the piston is slidably installed inside the cylinder block (61). The air inlet pipe (62) is connected to the inside of the inner-inflow grille (1).

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