A sewage treatment rake bucket type cleaning machine with a grid mechanism

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment rake bucket type garbage cleaning machine with a grid mechanism, comprising a frame, a garbage grid, a rake bucket, a first steel cable, and a first drive assembly. The garbage grid is provided on the frame and is blocked at a water channel. There are multiple rake buckets, which are arranged side by side along the width direction of the garbage grid, and the multiple rake buckets are divided into two groups in a spaced-apart manner. Since the two groups of rake buckets move upward alternately, adjacent rake buckets are alternately displaced during the upward movement of the rake buckets, thereby forming a shearing effect between the two adjacent rake buckets. If dirt, such as woven bag ropes, is entangled in the rake buckets, the alternating dislocation between the two adjacent rake buckets will generate a shearing force on the dirt, which is conducive to breaking or tearing the dirt entangled in the rake buckets.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment rake bucket type garbage cleaning machine with a grid mechanism. Background Art

[0002] A wastewater treatment scraper is a specialized device used in water treatment projects to intercept and remove floating debris, suspended solids, and various impurities from water. It is primarily installed at the water inlet of pumping stations, hydropower stations, sewage treatment plants, and other facilities. Using mechanical transmission to reciprocate the scraper, the scraper removes debris (such as branches, weeds, plastic bags, and leaves) adhering to the trash rack. This ensures smooth water flow and prevents contaminants from clogging pipes or damaging subsequent equipment. It is a key piece of equipment in the pretreatment stage of the water treatment process.

[0003] When the existing rake bucket type garbage cleaning machine is in use, the traction mechanism pulls the rake bucket through the steel cable and descends along the guide device to the bottom of the garbage screen. At this time, the rake bucket opens and the rake teeth are inserted into the gaps between the bars of the garbage screen. Then the traction mechanism pulls the rake bucket upward through the steel cable. At the same time, the rake bucket closes and tightly raks the garbage attached to the garbage screen. As the rake bucket is lifted, the garbage is brought out of the water. When the rake bucket is lifted to the garbage unloading position at the top of the equipment, the rake bucket is opened by a mechanical device (such as a baffle or a discharge chute), and the garbage is unloaded into the garbage receiving chute or transportation equipment. Then the rake bucket descends again to start the next working cycle.

[0004] However, existing scraper-bucket garbage cleaning machines have the following problems: As the scraper moves upward through the sewage, due to its large frontal area, it experiences significant resistance from the sewage. This in turn causes excessive tension on the steel cable connecting the scraper, which can easily break. Furthermore, debris such as woven bags mixed in the sewage can become entangled in the scraper's tines, making them difficult to clean. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention proposes a sewage treatment rake bucket type garbage cleaning machine with a grid mechanism to solve the problem that when the existing rake bucket moves upward from the sewage, the sewage exerts too much resistance on the rake bucket, which easily causes the steel cable connecting the rake bucket to break.

[0006] Another object of the present invention is to solve the problem that debris such as woven bags and the like are entangled in the rake teeth of the rake bucket, making it difficult to clean them.

[0007] The above purpose is achieved through the following technical solutions:

[0008] A sewage treatment rake bucket type cleaning machine with a grid mechanism comprises:

[0009] frame;

[0010] The trash screen is installed on the frame and is blocked in the water channel;

[0011] There are multiple rake buckets, which are arranged side by side along the width direction of the trash grille and are divided into two groups in an interval configuration;

[0012] There are multiple first steel cables divided into two groups, and the two groups of first steel cables are respectively connected to the two groups of rake buckets;

[0013] The first driving assembly is used to pull the two groups of buckets to move along the length direction of the trash screen through the first steel cable, and when the buckets move upward, the first driving assembly is used to make the two groups of buckets move upward alternately along the length direction of the trash screen.

[0014] Preferably, the rake bucket includes a rake tooth plate and a side plate. There are two side plates, which are respectively arranged on the left and right sides of the rake tooth plate. A plurality of water-permeable holes are opened in the middle and upper part of the rake tooth plate.

[0015] Preferably, the rake bucket further comprises a needle plate, which is arranged on the lower surface of the rake tooth plate, and the positions of the water holes opened on the needle plate and the adjacent rake tooth plates correspond to each other;

[0016] When the relative sliding distance between two adjacent rake buckets reaches a preset value, the needle plates are plugged into the water-permeable holes accordingly.

[0017] Preferably, the rake bucket further includes a water filter net, which is arranged on the side plate.

[0018] Preferably, the water filter is circular and rotatably arranged on the side plate;

[0019] When the relative sliding distance between two adjacent buckets reaches a preset value, the water filter can rotate 180 degrees in the circumferential direction.

[0020] Preferably, a guide column is spirally connected to the center of the outer side of the water filter, and a wedge block is provided at a non-central position of the outer side of the water filter, and a wedge groove is provided on the wedge block, and the wedge groove extends along the length direction of the wedge block;

[0021] In the two water filter nets facing each other, the guide column corresponding to one of the water filter nets is slidably connected in the wedge groove corresponding to the other water filter net.

[0022] Preferably, the first steel cable and the scraper bucket are connected by an intermediate connecting member, which includes an intermediate connecting rod, a sliding plate and a joint. The intermediate connecting rod is fixedly connected to a plurality of scraper buckets spaced apart from each other. There are two sliding plates, which are spaced apart from each other along the width direction of the trash screen, and the two sliding plates are respectively slidably connected to the two inner side surfaces of the trash screen. One end of the joint is arranged on the sliding plate, and the other end of the joint is fixedly connected to the first steel cable.

[0023] Preferably, the frame is further provided with a second drive assembly, which is used to drive the two groups of rake buckets to rotate around the axis of the corresponding middle connecting rod so that the two groups of rake buckets are opened or closed.

[0024] Preferably, the second drive assembly includes a second drum and a second steel cable, there are two second drums, the two second drums are rotatably arranged on the frame, and the two second drums can rotate around their axes, there are two second steel cables, one end of the two second steel cables is wound on the corresponding second drums, the other end of one of the second steel cables is connected to the upper part of the rake tooth plate corresponding to the spaced rake buckets, and the other end of the other second steel cable is connected to the upper part of the rake tooth plate corresponding to the remaining rake buckets.

[0025] Preferably, the frame is further provided with a baffle, which is used to open when the rake bucket moves up to the dirt unloading position of the frame.

[0026] The beneficial effects of the present invention are:

[0027] The present invention is provided with a plurality of rake buckets, which are divided into two groups in the form of an interval configuration, and the two groups of rake buckets are moved upward alternately. In this way, the water-facing area of ​​each group of rake buckets when moving upward alone is smaller than the water-facing area of ​​the two groups of rake buckets when moving upward simultaneously. Therefore, the tension on the first steel cable connected to the two groups of rake buckets is significantly reduced, which is conducive to preventing the problem of the first steel cable being broken due to excessive tension. In addition, since the two groups of rake buckets move upward alternately, the adjacent two rake buckets are alternately misaligned during the process of the rake buckets moving upward, so that a shearing effect can be formed between the two adjacent rake buckets. If dirt such as woven bag ropes are wrapped around the rake buckets, the alternating misalignment between the two adjacent rake buckets will generate a shear force on the dirt, which is conducive to breaking or tearing the dirt wrapped around the rake buckets. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an overall schematic diagram of a sewage treatment rake bucket type cleaning machine with a grid mechanism according to the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0031] Figure 4 This is a structural schematic diagram of a rake bucket in a sewage treatment rake bucket type cleaning machine with a grid mechanism according to the present invention;

[0032] Figure 5This is a structural schematic diagram of a needle plate in a sewage treatment rake bucket type cleaning machine with a grid mechanism according to the present invention;

[0033] Figure 6 This is a schematic diagram of the installation position of a wedge block in a sewage treatment rake bucket type cleaning machine with a grid mechanism according to the present invention;

[0034] Figure 7 This is a schematic diagram of the connection structure of the guide column in a sewage treatment rake bucket type garbage cleaning machine with a grid mechanism according to the present invention;

[0035] Figure 8 This is a schematic structural diagram of the third drive assembly in a sewage treatment rake bucket type cleaning machine with a grid mechanism according to the present invention;

[0036] Figure 9 for Figure 8 Schematic diagram of the enlarged structure at C in the middle;

[0037] Figure 10 This is a schematic diagram of the connection structure of the first drum, the second drum, the third drum and the fourth drum in a sewage treatment rake bucket type garbage cleaning machine with a grid mechanism according to the present invention;

[0038] Figure 11 The present invention is a schematic diagram of the rotation state of the water filter screen in a sewage treatment rake bucket type garbage cleaning machine with a grid mechanism.

[0039] in:

[0040] 100, frame; 110, baffle;

[0041] 200. Trash screen;

[0042] 300, rake bucket; 310, rake tooth plate; 311, water permeability hole; 320, side plate; 330, needle plate; 340, water filter; 341, spiral groove; 350, wedge block; 351, wedge groove; 360, guide post; 361, spiral protrusion; 370, mounting ring;

[0043] 400, first steel cable;

[0044] 500, first drive assembly; 510, first reel; 520, inner shaft; 530, outer tube; 540, first motor; 550, second motor;

[0045] 600, intermediate connecting member; 610, intermediate connecting rod; 620, sliding plate; 630, joint;

[0046] 700, second drive assembly; 710, second drum; 720, second steel cable; 730, third motor; 740, fourth motor. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0049] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] like Figures 1 to 11 As shown, a sewage treatment bucket-type garbage cleaning machine with a grid mechanism includes a frame 100, a garbage screen 200, a bucket 300, a first steel cable 400 and a first drive assembly 500. The garbage screen 200 is provided on the frame 100, and the garbage screen 200 is blocked in the canal. There are multiple buckets 300, and the multiple buckets 300 are arranged side by side along the width direction of the garbage screen 200, and the multiple buckets 300 are divided into two groups in the form of an interval configuration. The first drive assembly 500 is used to pull the two groups 300 to move along the length direction of the garbage screen 200 through the first steel cable 400, and when the buckets 300 move upward, the first drive assembly 500 is used to make the two groups of buckets 300 move alternately upward along the length direction of the garbage screen 200.

[0051] Since the trash screen 200 is blocked at the canal, the dirt in the sewage flowing through the canal is blocked by the trash screen 200. When it is necessary to clean the dirt blocked by the trash screen 200, the staff first makes the first driving assembly 500 pull the two sets of rake buckets 300 through the first steel cable 400 and move them downward along the length direction of the trash screen 200 to the bottom of the trash screen 200. At the same time, the two sets of rake buckets 300 are in an open state. When the two sets of rake buckets 300 move down to the bottom of the trash screen 200, The two groups of rake buckets 300 are both in a closed state. At this time, the rake buckets 300 tightly rake the dirt on the trash grille 200. Next, the staff uses the first drive assembly 500 to move the two groups of rake buckets 300 alternately upward. Since the water-facing area of ​​each group of rake buckets 300 when moving upward alone is smaller than the water-facing area when the two groups of rake buckets 300 move upward simultaneously, the tension on the first steel cable 400 connected to the two groups of rake buckets 300 is significantly reduced, which helps to prevent the first steel cable 400 from breaking due to excessive tension.

[0052] More importantly, since the two groups of rake buckets 300 move upward alternately, the two adjacent rake buckets 300 are alternately displaced during the upward movement of the rake buckets 300, so that a shearing effect can be formed between the two adjacent rake buckets 300. If dirt such as woven bag ropes are entangled on the rake buckets 300, the alternating dislocation between the two adjacent rake buckets 300 will generate a shearing force on the dirt, which is conducive to breaking or tearing the dirt entangled on the rake buckets 300, making it easier for the dirt to fall off the rake buckets 300, and preventing the rake buckets 300 from being entangled with a lot of dirt, which makes it difficult to clean the rake buckets 300.

[0053] The scraper 300 is then moved to the bottom of the dirt collecting trough 200 by the first drive assembly 500 so that the scraper 300 can no longer move upwards, that is, the scraper 300 moves to the dirt collecting trough 200 of the rack 100.

[0054] It should also be noted that the present embodiment provides a specific structure of a first drive assembly 500. For the sake of detailed description, the number of the rake bucket 300 is four. The first drive assembly 500 specifically includes a first drum 510, an inner shaft 520, an outer tube 530, a first motor 540, and a second motor 550. The inner shaft 520 is rotatably arranged on the frame 100, and the outer tube 530 is rotatably sleeved on the outside of the inner shaft 520. There are four first drums 510, and the first steel cable 400 is wound on each of the four first drums 510. Two of the first drums 510 are coaxially arranged on the inner shaft 520. The outer tube 530 is provided at both ends of the outer tube 530, and the first steel cables 400 wound on the two first drums 510 corresponding to the inner shaft 520 are connected to one group of rake buckets 300. The other two first drums 510 are coaxially arranged at both ends of the outer tube 530, and the first steel cables 400 wound on the two first drums 510 corresponding to the outer tube 530 are connected to the other group of rake buckets 300. The first motor 540 is provided on the frame 100, and the first motor 540 is connected to the inner shaft 520 by power (e.g., belt drive). The second motor 550 is also provided on the frame 100, and the second motor 550 is connected to the outer tube 530 by power. When the two groups of rake buckets 300 need to move alternately upward, the first motor 540 and the second motor 550 are alternately started to drive the corresponding two groups of first drums 510 to reel alternately, thereby driving the two groups of rake buckets 300 to move alternately upward through the first steel cables 400.

[0055] In a further embodiment, Figure 4 As shown, the rake bucket 300 includes a rake plate 310 and a side plate 320 . There are two side plates 320 , which are respectively arranged on the left and right sides of the rake plate 310 . A plurality of water-permeable holes 311 are opened in the middle and upper part of the rake plate 310 .

[0056] It can be understood that the side plates 320 are provided on both sides of the rake plate 310 to prevent the dirt caught by the rake plate 310 from flowing to another adjacent rake plate 310, and the water permeable holes 311 are provided in the middle and upper part of the rake plate 310 to quickly discharge the sewage in the rake bucket 300 after the rake bucket 300 is moved out from below the sewage water surface, so as to reduce the resistance of the rake bucket 300 when moving upward. The reason why the water permeable holes 311 are not provided in the lower part of the rake bucket 300 is because the dirt will be deposited in the lower part of the rake bucket 300.

[0057] Since each group of rake buckets 300 has a plurality of rake buckets 300, in order to facilitate the first steel cable 400 to simultaneously pull the plurality of rake buckets 300 to move along the length direction of the trash screen 200, in a further embodiment, as shown in FIG. Figure 3As shown, the first steel cable 400 and the scraper bucket 300 are connected by an intermediate connecting member 600. The intermediate connecting member 600 includes an intermediate connecting rod 610, a sliding plate 620 and a joint 630. The intermediate connecting rod 610 is fixedly connected to multiple scraper buckets 300 spaced apart from each other. There are two sliding plates 620. The two sliding plates 620 are spaced apart from each other along the width direction of the trash grille 200, and the two sliding plates 620 are respectively slidably connected to the two inner side surfaces of the trash grille 200. One end of the joint 630 is arranged on the sliding plate 620, and the other end of the joint 630 is fixedly connected to the first steel cable 400.

[0058] In a further embodiment, Figure 4 and Figure 5 As shown, the rake bucket 300 also includes a needle plate 330, which is arranged on the lower surface of the rake tooth plate 310, and the needle plate 330 corresponds to the position of the water-permeable holes 311 opened on the adjacent rake tooth plate 310. When the relative sliding distance between the two adjacent rake buckets 300 reaches a preset value, the needle plate 330 is correspondingly plugged into the water-permeable holes 311.

[0059] When the scrapers 300 are removed from below the sewage surface, the distance that the two groups of scrapers 300 alternately move upward reaches a preset value, that is, the relative sliding distance between the two adjacent scrapers 300 reaches a preset value. At this time, the needle plates 330 and the water holes 311 can be correspondingly plugged in. Next, as the two groups of scrapers 300 are alternately misaligned, the water holes 311 corresponding to the two scrapers 300 are alternately plugged into the needle plates 330 on the corresponding side. At this time, if the water holes 311 are blocked with dirt, the steel needles on the needle plates 330 can poke the dirt out of the water holes 311, preventing the water holes 311 from being blocked and causing the sewage in the scrapers 300 to be unable to be discharged in time.

[0060] It should be noted that when the rake buckets 300 are moving upward and have not yet been removed from below the sewage surface, the distance over which the two groups of rake buckets 300 alternately move upward is less than a preset value, i.e., the relative sliding distance between two adjacent rake buckets 300 is less than a preset value. At this time, the alternating offset distance between the two adjacent rake buckets 300 is insufficient to allow the needle plate 330 to be inserted into the water-permeable holes 311 of the rake buckets 300. Therefore, the steel needles of the needle plate 330 do not disturb the interior of the rake buckets 300, thereby facilitating the sedimentation of dirt within the rake buckets 300 to the lower portion of the rake buckets 300. Furthermore, this prevents the steel needles of the needle plate 330 from clogging the water-permeable holes 311, thereby causing excessive resistance to the rake buckets 300 as they move upward through the sewage.

[0061] In a further embodiment, Figure 6 As shown, the bucket 300 further includes a water filter 340 , which is disposed on the side plate 320 .

[0062] The purpose of providing the water filter net 340 is to further accelerate the discharge of sewage in the scraper bucket 300 after the scraper bucket 300 is moved out from below the sewage surface.

[0063] In a further embodiment, Figure 6 As shown, the water filter net 340 is circular and is rotatably mounted on the side plate 320. Specifically, a circular hole is provided on the side of the side plate 320, and a mounting ring 370 is mounted in the circular hole. The water filter net 340 is coaxially rotatably connected to the mounting ring 370. When the relative sliding distance between two adjacent scraper buckets 300 reaches a preset value, the water filter net 340 can rotate 180 degrees in the circumferential direction.

[0064] It is understandable that when the relative sliding distance between two adjacent scrapers 300 reaches a preset value, the filter screen 340 rotates 180 degrees in the circumferential direction so that the two filter screens 340 facing each other can backwash each other to prevent the filter screens 340 from being blocked.

[0065] See also Figure 11 ,exist Figure 11 In the figure (1), the left filter net 340 lags behind the right filter net 340. At this time, the sewage in the right scraper 300 can pass through the b2 and a1 areas in sequence. Therefore, the a1 area of ​​the left filter net 340 can be backwashed and cleaned by the sewage. When the distance moved by the right scraper 300 relative to the left scraper 300 reaches the preset value, the filter net 340 rotates 180 degrees, as shown in FIG. Figure 11 As shown in Figure (2), the scraper bucket 300 on the right lags behind the scraper bucket 300 on the left, and the sewage in the scraper bucket 300 on the left can pass through the a1 and b2 areas in sequence. At this time, the b2 area of ​​the water filter 340 on the right can be backwashed and cleaned by the sewage to prevent the water filter 340 on the scraper bucket 300 on the right from being blocked.

[0066] In a further embodiment, Figure 6 and Figure 7 As shown, a guide column 360 is spirally connected to the center of the outer side of the water filter net 340. Specifically, a spiral groove 341 is provided in the center of the water filter net 340, and a spiral protrusion 361 is provided at one end of the spiral groove 341 close to the water filter net 340. The spiral protrusion 361 is slidably connected in the spiral groove 341. A wedge block 350 is provided at a non-center position on the outer side of the water filter net 340. A wedge groove 351 is provided on the wedge block 350. The wedge groove 351 extends along the length direction of the wedge block 350. In the two water filter nets 340 facing each other, the guide column 360 corresponding to one of the water filter nets 340 is slidably connected in the wedge groove 351 corresponding to the other water filter net 340.

[0067] When two adjacent scraper buckets 300 move relative to each other, the guide posts 360 corresponding to the two facing water filter nets 340 slide along the wedge grooves 351. Guided by the wedge grooves 351, the guide posts 360 move along their axes. The spiral engagement of the spiral protrusions 361 and the spiral grooves 341 on the guide posts 360 causes the water filter nets 340 to rotate circumferentially. When the relative movement distance between the two adjacent scraper buckets 300 reaches a preset value, the distance the guide posts 360 move along their axes just causes the water filter nets 340 to rotate 180 degrees circumferentially.

[0068] In a further embodiment, a second driving assembly 700 is further provided on the frame 100 , and the second driving assembly 700 is used to drive the two groups of rake buckets 300 to rotate around the axis of the corresponding middle connecting rod 610 so that the two groups of rake buckets 300 are opened or closed.

[0069] When it is necessary to open or close one of the two groups of rake buckets 300, the second drive assembly 700 is used to rotate the group of rake buckets 300 around the axis of the corresponding intermediate connecting rod 610 to open or close the group of rake buckets 300. Specifically, the second drive assembly 700 includes a second drum 710 and a second steel cable 720. There are two second drums 710, which are rotatably arranged on the frame 100. The two second drums 710 can rotate around their axes. Specifically, the machine A third motor 730 is provided on the frame 100, and the third motor 730 is connected to one of the second drums 710 by power. A fourth motor 740 is also provided on the frame 100, and the fourth motor 740 is connected to another of the second drums 710 by power. There are two second steel cables 720, and one end of the two second steel cables 720 is wound on the corresponding second drum 710, and the ends of the two second steel cables 720 away from the second drum 710 are respectively connected to the intermediate connecting rods 610 corresponding to the two groups of buckets 300.

[0070] Specifically, when it is necessary to open one group of rake buckets 300 (assuming that the group of rake buckets 300 is connected to the second reel 710 corresponding to the third motor 730 through the second steel cable 720), the third motor 730 is started, and the third motor 730 drives the corresponding second reel 710 to rotate, so that the second steel cable 720 is wound onto the corresponding second reel 710. At this time, the group of rake buckets 300 is rotated upward around the axis of the corresponding intermediate connecting rod 610 under the action of tension, so that the rake buckets 300 are opened. Conversely, when it is necessary to close the group of rake buckets 300, the third motor 730 is started to rotate the third motor 730 in the opposite direction.

[0071] Similarly, when another set of rake buckets 300 needs to be opened, the fourth motor 740 is started, and the fourth motor 740 drives the corresponding second drum 710 to rotate, so that the second steel cable 720 is wound onto the corresponding second drum 710. At this time, the rake buckets 300 of this group are rotated upward around the axis of the corresponding middle connecting rod 610 under the action of the tension, so that the rake buckets 300 of this group are opened. Conversely, when the rake buckets 300 of this group need to be closed, the fourth motor 740 is started to rotate in the opposite direction.

[0072] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A sewage treatment rake bucket type cleaning machine with a grid mechanism, characterized in that: include: frame; The trash screen is installed on the frame and is blocked in the water channel; There are multiple rake buckets, which are arranged side by side along the width direction of the trash grille and are divided into two groups in an interval configuration; There are multiple first steel cables divided into two groups, and the two groups of first steel cables are respectively connected to the two groups of rake buckets; The first drive assembly is configured to pull the two groups of rake buckets along the length of the trash screen via a first steel cable, and when the rake buckets move upward, the first drive assembly is configured to cause the two groups of rake buckets to alternately move upward along the length of the trash screen; the rake buckets include a rake plate and a side plate, the side plates having two side plates, the two side plates being disposed on the left and right sides of the rake plate, and a plurality of water-permeable holes being formed in the middle and upper portions of the rake plate; the rake buckets also include a water filter disposed on the side plates; the water filter is circular and rotatably disposed on the side plates; When the relative sliding distance between two adjacent buckets reaches a preset value, the filter screen can rotate 180 degrees in the circumferential direction; a guide column is spirally connected to the center of the outer side of the filter screen, and a wedge block is set at a non-center position on the outer side of the filter screen, and a wedge groove is opened on the wedge block, which extends along the length direction of the wedge block; In two water filter screens facing each other, the guide post corresponding to one of the water filter screens is slidably connected to the wedge groove corresponding to the other water filter screen; The first drive assembly includes a first drum, an inner shaft, an outer tube, a first motor and a second motor. The inner shaft is rotatably arranged on the frame, and the outer tube is rotatably sleeved on the outside of the inner shaft. There are four first drums, and the four first drums are all wound with first steel cables. Two of the first drums are coaxially arranged at both ends of the inner shaft, and the first steel cables wound on the two first drums corresponding to the inner shaft are connected to one group of buckets. The other two first drums are coaxially arranged at both ends of the outer tube, and the first steel cables wound on the two first drums corresponding to the outer tube are connected to the other group of buckets. The first motor is arranged on the frame, and the first motor is connected to the inner shaft power. The second motor is also arranged on the frame, and the second motor is connected to the outer tube power.

2. The sewage treatment rake bucket type cleaning machine with a grid mechanism according to claim 1, characterized in that: The rake bucket further comprises a needle plate, which is arranged on the lower surface of the rake tooth plate, and the positions of the water holes opened on the needle plate and the adjacent rake tooth plates correspond to each other; When the relative sliding distance between two adjacent rake buckets reaches a preset value, the needle plates are plugged into the water-permeable holes accordingly.

3. The sewage treatment rake bucket type cleaning machine with a grid mechanism according to claim 1, characterized in that: The first steel cable and the scraper bucket are connected by an intermediate connecting member, which includes an intermediate connecting rod, a sliding plate and a joint. The intermediate connecting rod is fixedly connected to multiple scraper buckets spaced apart from each other. There are two sliding plates, which are spaced apart from each other along the width direction of the trash grille, and the two sliding plates are respectively slidably connected to the two inner side surfaces of the trash grille. One end of the joint is arranged on the sliding plate, and the other end of the joint is fixedly connected to the first steel cable.

4. The sewage treatment rake bucket type cleaning machine with a grid mechanism according to claim 1, characterized in that: The frame is also provided with a second driving assembly, which is used to drive the two groups of rake buckets to rotate around the axis of the corresponding middle connecting rod so that the two groups of rake buckets are opened or closed.

5. The sewage treatment rake bucket type cleaning machine with a grid mechanism according to claim 4, characterized in that: The second drive assembly includes a second drum and a second steel cable. There are two second drums, which are rotatably arranged on the frame. Both second drums can rotate around their axes. There are two second steel cables, one end of each second steel cable is wound around the corresponding second drum, the other end of one of the second steel cables is connected to the upper portion of the rake tooth plate corresponding to the spaced rake buckets, and the other end of the other second steel cable is connected to the upper portion of the rake tooth plate corresponding to the remaining rake buckets.

6. The sewage treatment rake bucket type cleaning machine with a grid mechanism according to claim 1, characterized in that: The frame is also provided with a baffle, which is used to open when the rake bucket moves up to the dirt unloading position of the frame.

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