Grating cleaner for drainage

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a drainage grille cleaner which comprises a main plate, two side plates are connected to the main plate, an opening is formed between the lower portion of the main plate and the two side plates, a grille is connected to the opening, chains are arranged on the sides, close to each other, of the two side plates, and a plurality of connecting blocks are connected to the chains at intervals. A fixing shaft is connected between every two connecting blocks corresponding in position in the horizontal direction, and the side, close to the main plate, of each fixing shaft is connected with a row of cleaning teeth used for cleaning the grating. The chain drives the fixed shaft, the cleaning teeth, the fishing teeth and the lengthened teeth to move, the limiting block limits the rotating angle of the lengthened teeth, the fishing teeth and the lengthened teeth fish out garbage blocked by the grating out of the water surface, more and larger garbage can be fished out through the arrangement of the lengthened teeth, the fished-out garbage can be prevented from sliding off, and therefore the garbage can be fished out in time, and the working efficiency is improved. The cleaning teeth can also clean out garbage clamped in the gaps of the grating, so that blockage is prevented, the water flow speed is ensured, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a drainage grille decontamination machine. Background Art

[0002] Screen cleaners are widely used in secondary screens for water supply and drainage and inlets of water intake structures. Screen cleaners are equipment used for removing dirt. Specifically, the screen residues intercepted by the screen are removed from the water surface through tooth rakes.

[0003] The tooth rakes of existing screen cleaners are mostly fixed. When there is a lot or large garbage in the water, the large garbage is easy to fall during the scooping process, and it takes many times to complete the garbage cleaning work, which increases the time of sewage treatment.

[0004] A Chinese patent with patent publication number CN113120981A discloses a screen cleaner, which uses extended teeth and fishing teeth to catch more and larger garbage. However, the slider is slidably arranged in the storage chute. After the garbage is fished out, the extended teeth will retreat under the action of gravity, and the extended teeth are also arranged straight, resulting in more and larger garbage may also slide off the extended teeth, increasing the time of sewage treatment. The overall efficiency of sewage treatment needs to be improved. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide a drainage screen decontamination machine which can prevent the scooped garbage from sliding and improve the sewage treatment efficiency.

[0006] A drainage screen dirt remover comprises a main board, two side boards are connected to the main board, an opening is formed between the lower part of the main board and the two side boards, and the screen is connected to the opening, a chain is arranged on the sides of the two side boards close to each other, a plurality of connecting blocks are connected to the chain at intervals, a fixed shaft is connected between every two connecting blocks corresponding to the horizontal positions, a row of cleaning teeth for cleaning the screen is connected to the side of the fixed shaft close to the main board, a row of fishing teeth is connected to the side of the fixed shaft away from the main board, an end of the fishing teeth away from the fixed shaft is rotatably connected to an extension tooth, and an end of the fishing teeth away from the fixed shaft is connected to a limit block for limiting the rotation angle of the extension tooth.

[0007] Optionally, a back plate is connected between the two side plates, a channel is formed between the back plate and the main plate, and a bending portion is provided on the top of the back plate; when the fishing teeth and the extension teeth move with the chain, the extension teeth enter the channel through the bending portion to retract the extension teeth.

[0008] Optionally, the limit blocks are each provided with an inclined surface, and the limit blocks limit the rotation angle of the lengthened teeth via the inclined surface.

[0009] Optionally, the drainage screen dirt remover also includes a rotating ring, a row of rotating rings with the same number as the extended teeth are rotatably connected to the fixed shaft, limiting grooves are opened in the middle of the extended teeth, and the rotating rings are connected with limiting strips that cooperate with the limiting grooves. A through hole is opened on one of the rotating rings in each row, and a pair of threaded holes is opened on the fixed shaft. A bolt is threadedly connected to one of the threaded holes in each pair of threaded holes, and the bolt passes through the through hole and one of the threaded holes to fix the position of the rotating ring, and a connecting rod is connected between each row of rotating rings.

[0010] Optionally, the drainage grille dirt remover also includes a fixed plate, the side plates are all connected to the fixed plates, the front of the fixed plates are rotatably connected to the rotating plates, the tops of the fixed plates are all connected to fixed rods, the fixed rods are provided with sliding bending rods, a mounting block is connected between the two bending rods, two spaced-apart baffle plates 1 are connected to the mounting block, the baffle plates 1 are all provided with inclined guide parts, the baffle plates 1 are all provided with sliding baffle plates 2, and the two baffle plates 2 are rotatably connected to the two rotating plates respectively.

[0011] Optionally, the drainage grille cleaner also includes a connecting plate, the front side of baffle plate 2 is connected to a connecting plate, the connecting plate is rotatably connected to guide plate 1, a torsion spring is provided between guide plate 1 and the connecting plate, and the front side of baffle plate 1 is connected to guide plate 2 which is in contact with guide plate 1.

[0012] Optionally, the drainage grille dirt remover also includes a soft sleeve, and the rotating connection between the fixed plate and the rotating plate, and the rotating connection between the baffle plate 2 and the rotating plate are both provided with the soft sleeve.

[0013] Optionally, the drainage screen cleaner also includes a fixed frame, which is connected between the two side panels, a linear drive is installed inside the fixed frame, a straight rod is installed on the linear drive, a row of arc rods are connected to the straight rods at intervals, and the top row of fishing teeth and extended teeth are inserted between the arc rods.

[0014] Optionally, the drainage grille dirt remover also includes a soft plate, and the side plates are provided with a soft plate for covering the chain, and the connecting block is bent and extends out of the soft plate.

[0015] The beneficial effects of the present invention are: 1. The chain drives the fixed shaft, the cleaning teeth, the fishing teeth and the extended teeth to move, the limit block limits the rotation angle of the extended teeth, the fishing teeth and the extended teeth fish the garbage blocked by the grille out of the water, the setting of the extended teeth can fish out more and larger garbage, and can prevent the fished garbage from sliding, so as to fish out the garbage in time, the cleaning teeth can also clear out the garbage sandwiched in the gap of the grille, prevent blockage, ensure the water flow speed, and improve the sewage treatment efficiency.

[0016] 2. Twist the bolt to make it leave the threaded hole, then rotate the extension tooth and the connecting rod, the limit bar enters the limit groove, thereby limiting the extension tooth, reverse the bolt to make it enter another threaded hole, so that the extension tooth remains in the retracted state, the bending part will also squeeze the extension tooth, so that the extension tooth behind the mainboard is retracted, which not only avoids damage to the extension tooth during transportation, but also reduces the occupied space.

[0017] 3. Guide plate 1 and baffle 1 will move backwards under the impact of water flow, and baffle 2 will be in an expanded state to block the garbage on the left and right sides of the water flow to adapt to a wider water flow. The garbage in the water will flow toward the grille under the guidance of guide plate 1, guide plate 2 and the guide part, thereby reducing the impact of water flow on the garbage in front of the grille, avoiding garbage backflow, and allowing the garbage to stay in a position that is easy to pick up with the extended teeth, thereby improving the efficiency of garbage disposal.

[0018] 4. When the cleaning teeth, fishing teeth and extension teeth move to the top of the main board, the fishing teeth and extension teeth will be inserted between the arc rods. The arc rods move upward to remove small garbage between adjacent fishing teeth and adjacent extension teeth in time to avoid small garbage residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the first partial structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure after the middle grille, soft panel and front side panels are hidden; Figure 4 For the present invention Figure 3 Side view in; Figure 5 It is a schematic diagram of the structure of the connecting block, the fixed shaft, the cleaning teeth, the fishing teeth, the lengthened teeth, the rotating ring and the connecting rod of the present invention; Figure 6 It is an exploded view of the fixed shaft, cleaning teeth, fishing teeth, extended teeth, rotating ring, limiting strips, bolts and limiting blocks of the present invention; Figure 7 For the present invention Figure 5 Side view after the middle connection block is hidden; Figure 8 For the present invention Figure 7 Schematic diagram of the state when the middle extension teeth are retracted; Fig. 9 It is a schematic diagram of a second partial structure of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the state after the middle baffle 1 and baffle 2 are unfolded; Fig.11It is a partial cross-sectional structural schematic diagram of the fixing frame, the linear drive, the straight rod and the arc rod of the present invention; Fig.12 It is a schematic diagram of the structure of the straight rod and the curved rod of the present invention; Fig.13 It is a schematic diagram of the matching relationship between the fishing teeth, the extended teeth and the arc rod of the present invention.

[0020] Markings in the attached drawings: 1-main board, 2-side board, 21-back board, 22-bending part, 3-grid, 4-chain, 5-connecting block, 6-fixed shaft, 7-clearing tooth, 8-fishing tooth, 9-lengthening tooth, 90-limiting groove, 91-rotating ring, 92-limiting bar, 93-through hole, 94-threaded hole, 95-bolt, 96-connecting rod, 10-limiting block, 100-inclined surface, 111 -fixed plate, 112-rotating plate, 113-fixed rod, 114-bending rod, 115-mounting block, 116-baffle 1, 1160-guide part, 117-baffle 2, 121-connecting plate, 122-guide plate 1, 123-guide plate 2, 124-soft sleeve, 131-fixed frame, 132-linear drive, 133-straight rod, 134-arc rod, 14-soft plate. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0022] Embodiment 1: A drainage screen dirt remover, referring to Figure 1-Figure 8 , including a main board 1, a side board 2, a grille 3, a chain 4, a connecting block 5, a fixed shaft 6, a cleaning tooth 7, a fishing tooth 8, an extension tooth 9 and a limit block 10, the left and right sides of the main board 1 are fixedly connected to the side boards 2, an opening for water supply is formed between the lower part of the main board 1 and the two side boards 2, the front side of the opening is fixedly connected to the grille 3, the two side boards 2 are close to each other. The side of the chain 4 is driven by the existing technology, and the chain 4 is rotated by the cooperation of the sprocket, the rotating shaft and the motor; a plurality of connecting blocks 5 are connected to the chain 4 at intervals, and a fixed shaft 6 is fixedly connected between each two connecting blocks 5 corresponding to the horizontal position, and a row of cleaning teeth 7 is fixedly connected to the side of the fixed shaft 6 close to the main board 1, and the cleaning teeth 7 can be inserted between the grilles 3 to clean the grilles 3; a row of fishing teeth 8 is fixedly connected to the side of the fixed shaft 6 away from the main board 1, and the end of the fishing tooth 8 away from the fixed shaft 6 is rotatably connected to the extension tooth 9, and the shapes of the cleaning teeth 7, the fishing teeth 8 and the extension teeth 9 refer to Figure 7 The ends of the fishing teeth 8 away from the fixed shaft 6 are fixedly connected to the limiting blocks 10; the limiting blocks 10 are provided with inclined surfaces 100, and the limiting blocks 10 limit the rotation angle of the lengthened teeth 9 through the inclined surfaces 100.

[0023] Water flows from front to back toward the grille 3, and the garbage in the water is blocked by the grille 3 at its front side. Figure 4 and Figure 7 The direction is taken as the standard, and the chain 4 is rotated counterclockwise by rotating the sprocket wheel, and the chain 4 drives the connecting block 5, the fixed shaft 6, the cleaning teeth 7, the fishing teeth 8, the lengthened teeth 9 and the limit block 10 to move together. The limit block 10 blocks the lengthened teeth 9 through the inclined surface 100, so that the two rows of lengthened teeth 9 in front of the main board 1 and the grille 3 will not rotate clockwise relative to the fishing teeth 8 to limit the rotation angle of the lengthened teeth 9. The moving fishing teeth 8 and the lengthened teeth 9 can fish the garbage blocked by the grille 3 out of the water; when the cleaning teeth 7, the fishing teeth 8 and the lengthened teeth 9 move to the top of the main board 1, the garbage falls by gravity, and the fished garbage can be collected by an additional collecting device. The lengthened teeth 9 will rotate counterclockwise relative to the fishing teeth 8 under the action of gravity to shake off the garbage on the lengthened teeth 9; in this way, by setting the lengthened teeth 9, not only more and larger garbage can be fished out, but also the relative angle between the lengthened teeth 9 and the fishing teeth 8 is referenced Figure 4 , which can prevent the scooped garbage from sliding off, thereby timely scooping out the garbage in the water; at the same time, the cleaning teeth 7 can clear out the garbage caught in the gap of the grille 3, avoid the accumulation of small garbage in the gap of the grille 3, prevent blockage, ensure the water flow speed, and improve the sewage treatment efficiency.

[0024] refer to Figure 3 and Figure 4 A back plate 21 is fixedly connected between the two side plates 2, a channel is formed between the back plate 21 and the main plate 1, and a bending portion 22 is provided on the top of the back plate 21; when the fishing teeth 8 and the extension teeth 9 move with the chain 4, the extension teeth 9 enter the channel through the bending portion 22, thereby retracting the extension teeth 9.

[0025] refer to Figure 5-Figure 8 The drainage screen dirt remover also includes a rotating ring 91, a limit strip 92, a bolt 95 and a connecting rod 96. A row of rotating rings 91 equal in number to the lengthened teeth 9 are rotatably connected to the fixed shaft 6. A limit groove 90 is opened in the middle of the lengthened teeth 9. The rotating ring 91 is fixedly connected with a limit strip 92 that cooperates with the limit groove 90. A through hole 93 is opened on the leftmost rotating ring 91 in each row of rotating rings 91. A pair of threaded holes 94 are opened on the fixed shaft 6. A bolt 95 is threadedly connected to one of the threaded holes 94 in each pair of threaded holes 94. The bolt 95 passes through the through hole 93 and one of the threaded holes 94 to fix the position of the rotating ring 91. Connecting rods 96 are fixedly connected between each row of rotating rings 91 so that each row of rotating rings 91 can rotate synchronously.

[0026] When the device needs to be transported, the bolt 95 is manually tightened with a tool. Under the action of the threaded connection, the bolt 95 leaves the threaded hole 94, and the bolt 95 no longer fixes the position of the limit strip 92 and the rotating ring 91. Then the extended tooth 9 is rotated counterclockwise to retract the extended tooth 9. Then the connecting rod 96 is rotated to drive a whole row of rotating rings 91 and the limit strip 92 to rotate counterclockwise. The limit strip 92 enters the limit groove 90, thereby limiting the position of the extended tooth 9, and the through hole 93 is aligned with another threaded hole 94. Reversing the bolt 95 so that it enters another threaded hole 94 can fix the position of the limit strip 92 and the rotating ring 91 again, thereby keeping the extended tooth 9 in the retracted state; in addition, when the extended tooth 9 contacts the bending portion 22, the bending portion 22 will squeeze the extended tooth 9, causing the extended tooth 9 to rotate counterclockwise relative to the fishing tooth 8, thereby automatically retracting the extended tooth 9 behind the main board 1 into the channel, which not only prevents the extended tooth 9 from being damaged during transportation, but also reduces the space occupied by the entire equipment.

[0027] Example 2: Based on Example 1, refer to Figure 1 , Fig. 9 and Fig.10 The drainage grille dirt remover also includes a fixed plate 111, a rotating plate 112, a fixed rod 113, a bending rod 114, a mounting block 115, a baffle 116 and a baffle 2 117. The front sides of the side plates 2 are fixedly connected with the fixed plates 111, the front parts of the fixed plates 111 are rotatably connected with the rotating plates 112, the tops of the fixed plates 111 are fixedly connected with the fixed rods 113, the fixed rods 113 are provided with bending rods 114 that slide forward and backward, a mounting block 115 is fixedly connected between the front ends of the two bending rods 114, two symmetrical baffles 116 are fixedly connected to the mounting block 115, the two baffles 116 are spaced apart to form a water inlet, the baffles 116 are provided with inclined guide portions 1160, the baffles 116 are provided with baffles 2 117 that slide left and right, and the two baffles 2 117 are rotatably connected to the two rotating plates 112, respectively.

[0028] refer to Figure 1 , Fig. 9 and Fig.10 The drainage grille dirt remover also includes a connecting plate 121, a guide plate 122 and a guide plate 2 123. The front side of the baffle 2 117 is fixedly connected to the connecting plate 121, and the guide plate 122 is rotatably connected to the connecting plate 121. A torsion spring (not shown in the figure) is fixedly connected between the guide plate 122 and the connecting plate 121, and the front side of the baffle 1 116 is fixedly connected to the guide plate 2 123 in contact with the guide plate 122; it also includes a soft cover 124, and the rotating connection between the fixed plate 111 and the rotating plate 112, and the rotating connection between the baffle 2 117 and the rotating plate 112 are provided with two rubber soft covers 124, and the soft covers 124 are used to block impurities in the water to prevent the impurities in the water from clogging the gaps of these rotating connections.

[0029] When water flows from front to back toward guide plate 122 and baffle 116, guide plate 122 and baffle 116 will move backward under the impact of water flow, driving guide plate 2 123, baffle 2 117, mounting block 115 and bending rod 114 to move backward together. Fig.10 , the rotating plate 112 will rotate, and the two baffle plates 117 will move away from each other in the left and right directions. The baffle plate 117 drives the connecting plate 121 and the guide plate 122 to move, so that the baffle plate 117 is in an expanded state. Under the action of the torsion spring, the guide plate 122 and the guide plate 123 are in contact. The expanded baffle plate 117 can block the garbage on the left and right sides of the water flow to adapt to a wider water flow; the positions of the guide plate 122, the guide plate 123 and the guide part 1160 are as shown in FIG. Fig.10 As shown, under the guiding effect of guide plate 1 122, guide plate 2 123 and guide part 1160, the garbage in the water flows through the water inlet to the grille 3, thereby reducing the impact of the water flow on the garbage in front of the grille 3, avoiding the backflow of garbage, and making the garbage stay better in the position in front of the grille 3 where the extended teeth 9 can easily pick it up, thereby improving the efficiency of garbage disposal.

[0030] Embodiment 3: Based on Embodiment 2, refer to Figure 1 , Fig.11 , Fig.12 and Fig.13 The drainage screen dirt remover also includes a fixed frame 131, a linear driver 132, a straight rod 133 and an arc rod 134. The fixed frame 131 is fixedly connected between the tops of the two side panels 2, and the linear driver 132 is installed inside the fixed frame 131. In this embodiment, the linear driver 132 is specifically an electric slide rail, and a straight rod 133 is installed on the linear driver 132. A row of arc rods 134 are connected to the straight rod 133 at intervals, and the top row of fishing teeth 8 and extended teeth 9 will be inserted between the arc rods 134.

[0031] When the cleaning teeth 7, fishing teeth 8 and extended teeth 9 move to above the main board 1, the fishing teeth 8 and extended teeth 9 at this position will be inserted between the arc rods 134, and the linear driver 132 is controlled to drive the straight rod 133 to move upward, driving the straight rod 133 and the arc rod 134 to move upward, and the arc rod 134 will remove small garbage between adjacent fishing teeth 8 and adjacent extended teeth 9 in time to prevent small garbage from remaining on the fishing teeth 8 and the extended teeth 9, and the linear driver 132 is controlled to make the straight rod 133 and the arc rod 134 move downward and reset, and the arc rod 134 can continue to remove the garbage on the fishing teeth 8 and the extended teeth 9.

[0032] refer to Figure 1 and Figure 2The drainage grille dirt remover also includes a soft plate 14 made of rubber material. The side plates 2 are each provided with a soft plate 14. The connecting block 5 is bent and covers the chain 4. The connecting block 5 extends out of the soft plate 14. The soft plate 14 can be deformed by being squeezed by the connecting block 5. The soft plate 14 can block garbage and prevent small garbage from entering the chain 4, thereby ensuring the normal operation of the chain 4.

[0033] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A drainage screen dirt remover, comprising a main board (1), two side boards (2) being connected to the main board (1), an opening being formed between the lower portion of the main board (1) and the two side boards (2), and a screen (3) being connected to the opening, wherein: A chain (4) is provided on the side where the two side plates (2) are close to each other, and a plurality of connecting blocks (5) are connected to the chain (4) at intervals, and a fixed shaft (6) is connected between each two connecting blocks (5) corresponding to each other in the horizontal direction, and a row of cleaning teeth (7) for cleaning the grille (3) is connected to the side of the fixed shaft (6) close to the main plate (1), and a row of fishing teeth (8) is connected to the side of the fixed shaft (6) away from the main plate (1), and an end of the fishing teeth (8) away from the fixed shaft (6) is rotatably connected to an extension tooth (9), and an end of the fishing teeth (8) away from the fixed shaft (6) is connected to a limit block (10) for limiting the rotation angle of the extension tooth (9).

2. A drainage screen dirt remover according to claim 1, characterized in that: A back plate (21) is connected between the two side plates (2), a channel is formed between the back plate (21) and the main plate (1), and a bending portion (22) is provided on the top of the back plate (21); when the fishing teeth (8) and the extended teeth (9) move with the chain (4), the extended teeth (9) enter the channel through the bending portion (22) so that the extended teeth (9) are retracted.

3. A drainage screen dirt remover according to claim 2, characterized in that: The limit blocks (10) are each provided with an inclined surface (100), and the limit blocks (10) limit the rotation angle of the lengthened teeth (9) via the inclined surface (100).

4. A drainage screen dirt remover according to claim 3, characterized in that: The drainage screen dirt remover also includes a rotating ring (91), the fixed shaft (6) is rotatably connected to a row of rotating rings (91) whose number is equal to the lengthened teeth (9), the lengthened teeth (9) are each provided with a limiting groove (90) in the middle, the rotating rings (91) are each connected to a limiting strip (92) that cooperates with the limiting groove (90), one of the rotating rings (91) in each row of rotating rings (91) is provided with a through hole (93), the fixed shaft (6) is provided with a pair of threaded holes (94), one of the threaded holes (94) in each pair of threaded holes (94) is threadedly connected to a bolt (95), the bolt (95) passes through the through hole (93) and one of the threaded holes (94) to fix the position of the rotating ring (91), and connecting rods (96) are connected between each row of rotating rings (91).

5. A drainage screen dirt remover according to claim 4, characterized in that: The drainage screen dirt remover also comprises a fixed plate (111), the side plates (2) are all connected to the fixed plates (111), the front parts of the fixed plates (111) are all rotatably connected to the rotating plates (112), the tops of the fixed plates (111) are all connected to fixed rods (113), the fixed rods (113) are all provided with sliding bending rods (114), a mounting block (115) is connected between the two bending rods (114), the mounting block (115) is connected to two spaced-apart baffle plates (116), the baffle plates (116) are all provided with inclined guide portions (1160), the baffle plates (116) are all provided with sliding baffle plates (117), and the two baffle plates (117) are respectively rotatably connected to the two rotating plates (112).

6. A drainage screen dirt remover according to claim 5, characterized in that: The drainage screen dirt remover also includes a connecting plate (121), the front side of the second baffle plate (117) is connected to the connecting plate (121), the connecting plate (121) is rotatably connected to the first guide plate (122), a torsion spring is provided between the first guide plate (122) and the connecting plate (121), and the front side of the first baffle plate (116) is connected to the second guide plate (123) in contact with the first guide plate (122).

7. A drainage screen dirt remover according to claim 6, characterized in that: The drainage grille dirt remover also includes a soft sleeve (124), and the rotation connection between the fixed plate (111) and the rotating plate (112) and the rotation connection between the second baffle plate (117) and the rotating plate (112) are both provided with the soft sleeve (124).

8. A drainage screen dirt remover according to claim 7, characterized in that: The drainage screen dirt remover also includes a fixing frame (131), the fixing frame (131) being connected between the two side plates (2), a linear drive (132) being installed inside the fixing frame (131), a straight rod (133) being installed on the linear drive (132), a row of arc-shaped rods (134) being connected to the straight rod (133) at intervals, and the top row of fishing teeth (8) and extended teeth (9) being inserted between the arc-shaped rods (134).

9. A drainage screen dirt remover according to claim 8, characterized in that: The drainage screen dirt remover also includes a soft plate (14), the side plates (2) are each provided with a soft plate (14) for covering the chain (4), the connecting block (5) is bent, and the connecting block (5) extends out of the soft plate (14).

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