A drum-type trash rack for water conservancy projects

Abstract

The present invention relates to the technical field of water conservancy projects, and discloses a drum-type trash rack for water conservancy projects, which includes a frame, and also includes a driving mechanism, a transmission main shaft, a garbage monitoring module and a garbage conveyor belt. The garbage conveyor belt is horizontally arranged in the upper part of the frame, and a temporary garbage collection hopper is arranged in the frame below the end of the garbage conveyor belt; the transmission main shaft is horizontally rotatably installed in the frame below the front side of the garbage conveyor belt and is in transmission connection with the driving mechanism. The garbage monitoring module is fixedly installed on the upper surface of one side of the frame and is close to the driving motor. A plurality of trash wheels are installed at intervals along the axial direction on the transmission main shaft. For this drum-type trash rack for water conservancy projects, the floating objects in the river can be collected by rotation of this device and conveyed into the temporary garbage collection hopper, so that the floating objects in the river can be conveniently cleaned and collected, saving manpower and improving the efficiency of river cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy projects, and particularly to a drum - type trash rack for water conservancy projects. Background Art

[0002] Due to the complex water flow conditions and a large amount of debris in water conservancy projects, in order to avoid blockage and impact on water conservancy projects, a trash rack is set in front of the water inlet of water conservancy projects to block floating logs, branches, weeds, garbage and other debris carried by the water flow. In order to prevent these floating objects from blocking the water inlet and affecting the water intake capacity, it is necessary to regularly remove impurities from the trash rack so that the trash rack can be recycled and the water flow at the water inlet can be kept smooth.

[0003] However, the existing cleaning methods for trash racks mainly include manual cleaning, lifting the trash rack for cleaning, and mechanical cleaning. The existing cleaning methods not only have low cleaning efficiency, poor cleaning effect and are not intelligent enough, but also have high requirements for water level conditions. If the water level is high, it is difficult for manual and mechanical cleaning, and at this time the trash rack is blocked again, resulting in a continuous rise in the water level and forming a vicious cycle. Summary of the Invention

[0004] Aiming at the defects and problems existing in the existing trash rack cleaning device, the purpose of the present invention is to provide a drum - type trash rack for water conservancy projects. The principle and structure of the present invention are simple, and it has a good cleaning function for river floating objects. It can adjust the water passing volume according to specific river conditions and can automatically detect river floating objects, thus effectively solving the problems of low cleaning efficiency, poor cleaning effect and lack of intelligence of the existing trash rack.

[0005] The embodiments of the present application adopt the following technical solutions:

[0006] A drum - type trash rack for water conservancy projects, including a frame, further comprising a driving mechanism, a transmission main shaft, a garbage monitoring module and a garbage conveyor belt. The garbage conveyor belt is horizontally arranged in the upper part of the frame. A temporary garbage collection hopper is arranged in the frame below the end of the garbage conveyor belt. The transmission main shaft is horizontally rotatably installed in the frame below the front side of the garbage conveyor belt and is in transmission connection with the driving mechanism. The garbage monitoring module is fixedly installed on the upper surface of one side of the frame and is close to the driving motor. A plurality of trash - blocking wheels are axially spaced and installed on the transmission main shaft. Each trash - blocking wheel includes a mounting block, a dirt - removing rod and an annular grid bar. The mounting block is fitted and sleeved on the transmission main shaft and can slide axially along the transmission main shaft. A plurality of dirt - removing rods are circumferentially and evenly spaced on the outer ring surface of the mounting block. The plurality of dirt - removing rods are combined to form a dirt - removing roller. The dirt - removing rod includes a telescopic rod, a rod sleeve and a telescopic control component. The tail end of the rod sleeve is vertically connected to the mounting block. The telescopic rod is fitted and installed in the rod sleeve through the telescopic control component and can automatically extend outwards according to gravity through the telescopic control component. The annular grid bar is coaxially arranged on one side of the dirt - removing roller and is connected to the rod sleeves of all the dirt - removing rods in the dirt - removing roller, and the rod sleeves slightly protrude from the annular grid bar. A plurality of spacer blocks are slidably installed on the transmission main shaft on both the left and right sides of each trash - blocking wheel, and the outermost spacer blocks at both ends of the transmission main shaft push inwards to restrict the axial position of the trash - blocking wheel.

[0007] Preferably, the driving mechanism includes a driving motor and a transmission belt. The motor is fixedly installed on the upper surface of one side of the frame, and the transmission belt is movably connected to the outer surface of the main shaft of the motor.

[0008] Preferably, the telescopic control component includes a side hole, a cross bar, an arc - shaped elastic piece, a weight slider and a limit baffle. The telescopic rod is fixedly installed with the cross bar. The roots of the plurality of rod sleeves are radially fixedly installed on the outer surface of the mounting block to form a gear - like structure. The annular grid bar is fixedly installed at the top of the rod sleeve. The side hole is opened on one side of the rod sleeve. The outer diameter of the telescopic rod is slightly smaller than the inner diameter of the rod sleeve. The cross bar and the telescopic rod can move up and down within the limit range of the side hole due to gravity. The weight slider can move up and down within the range restricted by the arc - shaped elastic piece and the limit baffle due to gravity. When the telescopic rod gets stuck, the weight slider contacts and presses the cross bar, thereby prompting the telescopic rod to move downwards and extend out.

[0009] Preferably, a plurality of reinforcing purlins are fixedly installed at both ends of the frame. A bearing is arranged at the intersection center of the plurality of reinforcing purlins. The transmission main shaft is rotationally connected to the frame through the bearing. The transmission main shaft is horizontally rotatably installed in the frame below the front side of the transmission belt.

[0010] Preferably, the outer surface of the driving main shaft is of an irregular shape. The spacer block and the mounting block are of an annular sleeve structure, and the inner surface is consistent with the outer surface structure of the driving main shaft. The irregular outer surface of the driving main shaft will limit the relative rotation between the spacer block and the mounting block. The spacer block, the mounting block and the driving main shaft are concentrically arranged, and the spacer block and the mounting block can only slide axially on the driving main shaft.

[0011] Preferably, the length of the spacer block is appropriate. The spacer blocks are closely arranged on both sides of the mounting block and form extrusion limits on the mounting block. The spacer block and the mounting block can slide axially to both ends of the driving main shaft and then be disassembled from the driving main shaft. The distance between the two mounting blocks can be adjusted by adjusting the number of spacer blocks. Furthermore, the distance between the two sewage scraping rods and the two annular grid bars can be adjusted by adjusting the number of spacer blocks.

[0012] Preferably, the garbage monitoring module is an intelligent module that can detect the number of floating objects on the river surface. When there are too many floating objects on the river surface, it can automatically start the motor and the garbage conveyor belt to complete the cleaning of the garbage. When the cleaning is completed, the garbage monitoring module controls the motor and the garbage conveyor belt to turn off.

[0013] Preferably, the temporary garbage collection hopper can temporarily store the garbage conveyed by the garbage conveyor belt. Both the garbage collection hopper and the garbage conveyor belt are arranged above the water surface.

[0014] Preferably, a garbage shovel plate is fixedly installed at the position of the garbage conveyor belt close to the annular grid bar. The garbage shovel plate is arranged at the top of one side of the garbage conveyor belt and is close to the annular grid bar. The garbage shovel plate is made of an elastic material.

[0015] Advantages of the present invention: The present invention provides a drum - type trash rack for water conservancy projects. Its principle and structure are simple. The motor drives the transmission main shaft to rotate through the transmission belt. The transmission main shaft drives the mounting block to rotate, and then drives the dirt - removing rod and the grating bars to rotate. When the telescopic rod rotates downward past the horizontal state, the telescopic rod is subject to a downward component force due to its own weight, and the telescopic rod gradually slides downward and extends out in the rod sleeve. When the telescopic rod is vertically downward, the telescopic rod is fully extended. At this time, the cross - bar moves to the edge of the side hole and is restricted by the rod sleeve and no longer continues to extend. The telescopic rod continues to rotate. After the telescopic rod extends, it can lift floating objects in a larger range. After the telescopic rod rotates upward past the horizontal state, it is subject to a vertically downward component force and gradually moves downward and retracts into the rod sleeve. When the telescopic rod is vertically upward, the telescopic rod retracts vertically into the rod sleeve to avoid collision with the garbage conveyor belt. At this time, the floating object falls on the upper surface of the grating bars. The dirt - removing rod collects, flips and conveys the floating objects on the water surface to the garbage shovel plate through rotation. The garbage shovel plate conveys the garbage to the garbage conveyor belt, and the garbage conveyor belt conveys it to the temporary garbage collection hopper. This device can collect the floating objects in the river channel by rotation and convey them to the temporary garbage collection hopper, which can conveniently clean and collect the floating objects in the river channel, save manpower and improve the efficiency of river - channel cleaning.

[0016] The distance between the two mounting blocks can be adjusted by adjusting the number of spacer blocks. Furthermore, the distance between the two grating bars can also be adjusted by adjusting the number of spacer blocks. The spacer blocks can determine the number of spacer blocks and the distance between the grating bars during installation according to the specific river - channel conditions, and can be adjusted according to the actual situation. When a higher river - channel flow velocity is required, the number of spacer blocks is increased to increase the distance between the two grating bars, so as to avoid reducing the head loss at the water inlet, making the device adaptable to different river - channel conditions.

[0017] The garbage monitoring module is an intelligent module that can detect the number of floating objects on the river surface. When there are too many floating objects on the river surface, it can automatically start the motor and the garbage conveyor belt to complete the cleaning of the garbage. When the cleaning is completed, the garbage monitoring module controls the motor and the garbage conveyor belt to turn off, thus completing the cleaning of the garbage. By adding the garbage monitoring module, the entire device becomes more intelligent. The device can only start working when there are too many floating objects in the river channel. Starting timely makes the entire device more energy - saving and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0019] Figure 1 It is a rear - view structural schematic diagram of the present invention.

[0020] Figure 2 Schematic side view structure of the present invention.

[0021] Figure 3 Schematic top view structure of the present invention.

[0022] Figure 4 Schematic structure of the telescopic comparison of the sewage scraping rod of the present invention.

[0023] Figure 5 Schematic cross-sectional structure of the sewage scraping rod of the present invention.

[0024] Figure 6 Schematic structure of the end face contour of the transmission main shaft of the present invention.

[0025] Figure 7 Schematic structure of the spacer block of the present invention.

[0026] Figure 8 Schematic structure of the connection of the transmission main shaft of the present invention.

[0027] Figure 9 Schematic transmission structure of the present invention.

[0028] In the figure: 1 frame; 2 motor; 3 transmission belt; 4 transmission main shaft; 5 sewage scraping rod; 51 telescopic scraping rod; 52 rod sleeve; 53 side hole; 54 cross bar; 55 arc-shaped elastic piece; 56 counterweight slider; 57 limit baffle; 6 annular grid bar; 7 garbage conveyor belt; 71 garbage shovel plate; 8 temporary garbage collection hopper; 9 garbage monitoring module; 10 spacer block; 11 reinforcing purlin; 12 mounting block; 13 bearing. Specific embodiments

[0029] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0030] The following will detail the technical solutions provided by each embodiment of the present application in conjunction with the drawings.

[0031] Embodiment 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9, A drum - type trash rack for water conservancy projects, including a frame 1, further comprising a driving mechanism, a transmission main shaft 4, a garbage monitoring module 9 and a garbage conveyor belt 7. The garbage conveyor belt 7 is horizontally arranged in the upper part of the frame 1. A temporary garbage collection hopper 8 is arranged in the frame below the end of the garbage conveyor belt 7. The transmission main shaft 4 is horizontally rotatably installed in the frame below the front side of the garbage conveyor belt 7 and is in transmission connection with the driving mechanism. The garbage monitoring module 9 is fixedly installed on the upper surface of one side of the frame 1 and is close to the driving motor 2. A plurality of trash - blocking wheels are axially spaced and installed on the transmission main shaft 4. Each trash - blocking wheel includes a mounting block 12, a dirt - deflecting rod 5, and an annular grid bar 6. The mounting block 12 is fitted onto the transmission main shaft 4 and can slide axially along the transmission main shaft 4. A plurality of dirt - deflecting rods 5 are circumferentially and evenly arranged on the outer circumferential surface of the mounting block 12. The plurality of dirt - deflecting rods 5 are combined to form a dirt - deflecting roller. The dirt - deflecting rod 5 includes a telescopic rod 51, a rod sleeve 52, and a telescopic control component. The tail end of the rod sleeve 52 is perpendicularly connected to the mounting block 12. The telescopic rod 51 is fitted into the rod sleeve 52 through the telescopic control component and can automatically extend outward according to gravity through the telescopic control component. The annular grid bar 6 is coaxially arranged on one side of the dirt - deflecting roller and is connected to the rod sleeves 52 of all the dirt - deflecting rods 5 in the dirt - deflecting roller, and the rod sleeves 52 slightly protrude from the annular grid bar. A plurality of spacer blocks 10 are slidably installed on the transmission main shaft 4 on both the left and right sides of each trash - blocking wheel, and the outermost spacer blocks 10 at both the left and right ends of the transmission main shaft 4 push inward to restrict the axial position of the trash - blocking wheel.

[0032] The driving mechanism includes a driving motor 2 and a transmission belt 3. The motor 2 is fixedly installed on the upper surface of one side of the frame 1. The main shaft of the motor 2 faces the outside of the frame 1. The transmission belt 3 is movably connected to the outer surface of the main shaft of the motor 2.

[0033] The telescopic control component includes a side hole 53, a cross bar 54, an arc - shaped elastic piece 55, a weight slider 56, and a limit baffle 57. The telescopic rod 51 is fixedly installed with the cross bar 54. The roots of a plurality of rod sleeves 52 are radially fixedly installed on the outer surface of the mounting block 12 to form a gear - like structure. The annular grid bar 6 is fixedly installed at the top of the rod sleeve 52. The side hole 53 is opened on one side of the rod sleeve 52. The outer diameter of the telescopic rod 51 is slightly smaller than the inner diameter of the rod sleeve 52. The cross bar 54 and the telescopic rod 51 can move up and down within the limit range of the side hole 53 due to gravity. The weight slider 56 can move up and down within the range restricted by the arc - shaped elastic piece 55 and the limit baffle 57 due to gravity. When the telescopic rod 51 gets stuck, the weight slider 56 contacts and presses the cross bar 54, thereby prompting the telescopic rod 51 to move downward and extend.

[0034] A plurality of reinforcing purlins 11 are fixedly installed at both ends of the frame 1. The reinforcing purlins 11 enhance the overall stability of the frame 1. A bearing 13 is arranged at the intersection center of the plurality of reinforcing purlins 11. The transmission main shaft 4 is rotatably connected to the frame 1 through the bearing 13. The transmission main shaft 4 is horizontally rotatably installed in the frame 1 below the front side of the transmission belt 3.

[0035] The outer surface of the driving main shaft 4 is of an irregular shape. The spacer block 10 and the mounting block 12 are of an annular sleeve structure, and the inner surface is consistent with the outer surface structure of the driving main shaft 4. The irregular outer surface of the driving main shaft 4 will limit the relative rotation between the spacer block 10 and the mounting block 12. The spacer block 10, the mounting block 12 and the driving main shaft 4 are concentrically arranged, and the spacer block 10 and the mounting block 12 can only slide axially on the driving main shaft 4.

[0036] The temporary garbage collection hopper 8 can temporarily store the garbage conveyed by the garbage conveyor belt 7. Both the garbage collection hopper 8 and the garbage conveyor belt 7 are arranged above the water surface.

[0037] A garbage shovel plate 71 is fixedly installed at the position of the garbage conveyor belt 7 close to the annular grid bar 6. The garbage shovel plate 71 is arranged at the top end on one side of the garbage conveyor belt 7. The garbage shovel plate 71 is made of an elastic material and is close to the annular grid bar 6. The garbage shovel plate 71 can better receive the garbage transferred from the annular grid bar 6.

[0038] The motor 2 drives the driving main shaft 4 to rotate through the transmission belt 3. The driving main shaft 4 drives the mounting block 12 to rotate, and then drives the sewage scraping rod 5 and the annular grid bar 6 to rotate. When the telescopic rod 51 rotates downward past the horizontal state, the telescopic rod 51 is subject to a downward component force due to its own weight, and the telescopic rod 51 gradually slides downward and extends in the rod sleeve 52. When the telescopic rod 51 is vertically downward, the telescopic rod 51 completely extends out of the rod sleeve 52. At this time, the cross bar 54 moves to the edge of the side hole 53 and is restricted by the rod sleeve 52 and no longer continues to extend. After the telescopic rod 51 extends, it can lift floating objects in a larger range. After the telescopic rod 51 rotates upward past the horizontal state, it is subject to a vertically downward component force and gradually moves downward and retracts into the rod sleeve 52. When the telescopic rod 51 is vertically upward, the telescopic rod 51 retracts into the rod sleeve 52. At this time, the floating object falls on the upper surface of the annular grid bar 6. When the telescopic rod 51 gets stuck during the extension process, the counterweight slider 56 will push the cross bar 54 downward to avoid jamming of the cross bar 54 and the telescopic rod 51. When the counterweight slider 56 slides down to the maximum outer diameter of the arc-shaped elastic piece 55, it stops moving. The sewage scraping rod 5 collects, flips and conveys the floating objects on the water surface to the garbage shovel plate 71 through rotation. The garbage shovel plate 71 conveys the garbage to the garbage conveyor belt 7, and the garbage conveyor belt 7 conveys it into the garbage collection hopper 8. This device can collect garbage by rotation and can conveniently clean the floating objects in the river channel.

[0039] Embodiment 2: Please refer to Figure 3 、 Figure 7 、 Figure 8 and Figure 9, on the basis of Embodiment 1, the length of the spacer block 10 is appropriate. The spacer blocks 10 are closely arranged on both sides of the mounting block 12 and exert extrusion and limiting on the mounting block 12. The spacer block 10 and the mounting block 12 can slide axially to both ends of the transmission main shaft 4 and then be detached from the transmission main shaft 4. The distance between the two mounting blocks 12 can be adjusted by adjusting the number of spacer blocks 10. Furthermore, the distance between the two sewage scraping rods 5 and the two annular grid bars 6 can be adjusted by adjusting the number of spacer blocks 10. The spacer block 10 can determine the number of spacer blocks 10 and the distance between the grid bars 6 during installation according to the specific river conditions, and can be adjusted according to the actual situation. When the river flow velocity requirement is high, the head loss of the water inlet can be avoided from decreasing, so that the device can adapt to different river conditions.

[0040] Embodiment 3: Please refer to Figure 2 and Figure 3 , on the basis of Embodiment 1, the garbage monitoring module 9 is an intelligent module that can detect the number of floating objects on the river surface. When there are too many floating objects on the river surface, it can automatically start the motor 2 and the garbage conveyor belt 7 to complete the cleaning of the garbage. When the cleaning is completed, the garbage monitoring module 9 controls the motor 2 and the garbage conveyor belt 7 to turn off. The garbage monitoring module 9 can automatically open and close the device according to the amount of floating objects on the river surface, making the device more intelligent.

[0041] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A drum type trash rack for water conservancy projects, comprising a frame (1), characterized in that, It also includes a driving mechanism, a transmission main shaft (4), a garbage monitoring module (9) and a garbage conveyor belt (7). The garbage conveyor belt (7) is horizontally arranged at the upper part inside the frame (1). A temporary garbage collection hopper (8) is arranged inside the frame below the end of the garbage conveyor belt (7). The transmission main shaft (4) is horizontally rotatably installed inside the frame below the front side of the garbage conveyor belt (7) and is in transmission connection with the driving mechanism. The garbage monitoring module (9) is fixedly installed on the upper surface of one side of the frame (1) and is close to the transmission motor (2). A plurality of anti-pollution wheels are installed at intervals along the axial direction on the transmission main shaft (4). The anti-pollution wheel includes a mounting block (12), a pollution removing rod (5), and an annular grid bar (6). The mounting block (12) is fitted and sleeved on the transmission main shaft (4) and can slide along the axial direction of the transmission main shaft (4). A plurality of pollution removing rods (5) are evenly arranged at intervals along the circumferential direction on the outer ring surface of the mounting block (12). The plurality of pollution removing rods (5) are combined to form a pollution removing roller. The pollution removing rod (5) includes a telescopic rod (51), a rod sleeve (52) and a telescopic control component. The tail end of the rod sleeve (52) is vertically connected to the mounting block (12). The telescopic rod (51) is matched and installed in the rod sleeve (52) through the telescopic control component and can automatically extend the telescopic rod (51) outward according to gravity through the telescopic control component. The annular grid bar (6) is coaxially arranged on one side of the pollution removing roller and is connected to the rod sleeves (52) of all the pollution removing rods (5) in the pollution removing roller, and the rod sleeves (52) slightly protrude from the annular grid bar. A plurality of spacer blocks (10) are slidably installed on the transmission main shaft (4) on the left and right sides of each anti-pollution wheel, and the outermost spacer blocks (10) at the left and right ends of the transmission main shaft (4) push inward to restrict the axial position of the anti-pollution wheel.

2. The drum type trash rack for water conservancy projects according to claim 1, characterized in that, The driving mechanism includes a transmission motor (2) and a transmission belt (3). The motor (2) is fixedly installed on the upper surface of one side of the frame (1). The transmission belt (3) is movably connected to the outer surface of the main shaft of the motor (2).

3. The drum type trash rack for water conservancy projects according to claim 1, characterized in that, The telescopic control component includes a side hole (53), a cross bar (54), an arc-shaped elastic piece (55), a weight slider (56) and a limit baffle (57). The telescopic rod (51) is fixedly installed with the cross bar (54). The roots of the plurality of rod sleeves (52) are fixedly installed on the outer surface of the mounting block (12) to form a gear-like structure. The annular grid bar (6) is fixedly installed at the top of the rod sleeve (52). The side hole (53) is opened on one side of the rod sleeve (52). The outer diameter of the telescopic rod (51) is slightly smaller than the inner diameter of the rod sleeve (52). The cross bar (54) and the telescopic rod (51) can move up and down within the limit range of the side hole (53) due to gravity. The weight slider (56) can move up and down within the range restricted by the arc-shaped elastic piece (55) and the limit baffle (57) due to gravity. When the telescopic rod (51) gets stuck, the weight slider (56) contacts and presses the cross bar (54) to further prompt the telescopic rod (51) to move downward and extend.

4. The drum type trash rack for water conservancy projects according to claim 1 or 2, characterized in that, A plurality of reinforcing purlins (11) are fixedly installed at both ends of the frame (1). A bearing (13) is arranged at the intersection center of the plurality of reinforcing purlins (11). The driving main shaft (4) is rotatably connected to the frame (1) through the bearing (13). The driving main shaft (4) is horizontally rotatably installed in the frame (1) below the front side of the conveyor belt (3).

5. The drum type trash rack for water conservancy projects according to claim 1, characterized in that, The outer surface of the driving main shaft (4) is of an irregular shape. The spacer block (10) and the mounting block (12) are of an annular sleeve structure, and the inner surface is consistent with the outer surface structure of the driving main shaft (4). The irregular outer surface of the driving main shaft (4) will limit the relative rotation between the spacer block (10) and the mounting block (12). The spacer block (10), the mounting block (12) and the driving main shaft (4) are concentrically arranged. The spacer block (10) and the mounting block (12) can only slide axially on the driving main shaft (4).

6. The drum type trash rack for water conservancy projects according to claim 1, characterized in that, The length of the spacer block (10) is appropriate. The spacer blocks (10) are closely arranged on both sides of the mounting block (12) and form extrusion limits on the mounting block (12). The spacer block (10) and the mounting block (12) slide axially to both ends of the driving main shaft (4) and then are disassembled from the driving main shaft (4). The distance between the two mounting blocks (12) is adjusted by adjusting the number of spacer blocks (10). Furthermore, the distance between the two sewage scraping rods (5) and the two annular grid bars (6) is adjusted by adjusting the number of spacer blocks (10).

7. The drum type trash rack for water conservancy projects according to claim 1, characterized in that, The garbage monitoring module (9) is an intelligent module for detecting the number of floating objects on the river surface. When there are too many floating objects on the river surface, the motor (2) and the garbage conveyor belt (7) are automatically started to complete the cleaning of the garbage. When the cleaning is completed, the garbage monitoring module (9) controls the motor (2) and the garbage conveyor belt (7) to shut down.

8. The drum type trash rack for water conservancy projects according to claim 1, characterized in that, The temporary garbage collection hopper (8) is used to temporarily store the garbage conveyed by the garbage conveyor belt (7). The garbage collection hopper (8) and the garbage conveyor belt (7) are both arranged above the water surface.

9. The drum type trash rack for water conservancy projects according to claim 1, characterized in that, A garbage shovel plate (71) is fixedly installed at the position of the garbage conveyor belt (7) close to the annular grid bar (6). The garbage shovel plate (71) is arranged at the top end on one side of the garbage conveyor belt (7) and is close to the annular grid bar (6). The garbage shovel plate (71) is made of an elastic material.

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