Dam intake float cleaning device

Abstract

The application relates to the technical field of flow channel cleaning, and discloses a dam water inlet flow channel floating object cleaning device which comprises a fixing plate arranged at a dam water inlet flow channel opening, a water inlet opening is formed in the fixing plate and communicates with the dam water inlet flow channel opening, a filter plate is arranged in the water inlet opening, fixed blocking strips are fixedly installed on the filter plate, a salvage mechanism for cleaning garbage and a driving mechanism for driving the salvage mechanism to work by using water flow are arranged on the fixing plate, the salvage mechanism comprises movable rods, limiting rods, U-shaped frames and a plurality of first arc-shaped fixed strips, a plug groove and a limiting groove are formed in the upper end of the fixing plate, and the movable rods and the limiting rods are movably installed in the plug groove and the limiting groove respectively. The dam water inlet flow channel floating object cleaning device aims to solve the problems that, in the prior art, accumulated floating objects in front of a dam are cleaned by manual work, the efficiency is low, there are hidden dangers, and tree branches are easily stuck on the filter screen under the impact of water flow and are difficult to clean.

Description

Technical Field

[0001] This invention belongs to the field of flow channel cleaning technology, specifically relating to a device for cleaning floating debris in the intake flow channel of a dam. Background Technology

[0002] After the completion of a water conservancy dam project, drainage facilities need to be installed on the dam in order to facilitate the control of the water flow. However, since there are inevitably various floating objects on the river surface, such as domestic garbage, various floating crops, tree branches, etc., they will impact the facilities on the dam under the influence of the water flow and accumulate in the drainage facilities. This will affect the main structure of the dam and cause blockage of the drainage facilities, affecting navigation upstream and downstream and the hydroelectric power generation equipment installed on the dam.

[0003] In existing technologies, debris is typically removed from dams using a combination of netting and manual labor. This method requires significant manpower, resources, and funding, and is highly inefficient. During flood season, the increased water flow and velocity lead to a surge in debris, posing substantial safety hazards for manual removal. Furthermore, tree branches can easily become trapped in the netting due to the force of the water flow, making removal difficult. Therefore, we propose a debris removal device for dam intake channels to address these issues. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where manual cleaning of floating debris accumulated in front of dams is inefficient, poses safety hazards, and makes it difficult to clean tree branches that are easily stuck in the filter screen by the impact of water flow.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A floating debris cleaning device for a dam intake channel includes a fixed plate installed at the dam intake channel opening. The fixed plate has an inlet connected to the dam intake channel opening. A filter plate is installed inside the inlet. A fixed baffle is fixedly installed on the filter plate, and the fixed baffle is located above the water surface. The fixed plate is equipped with a debris-cleaning mechanism and a drive mechanism that uses water flow to drive the debris-cleaning mechanism.

[0007] Further defining the retrieval mechanism, it includes a movable rod, a limiting rod, a U-shaped frame, and several first arc-shaped fixing strips. The upper end of the fixing plate has a slot and a limiting groove. The movable rod and the limiting rod are movably installed in the slot and the limiting groove, respectively. The U-shaped frame is fixedly installed between the movable rod and the limiting rod, with one side of the U-shaped frame close to the fixing plate. Several first arc-shaped fixing strips are evenly spaced and fixedly installed on the lower part of the U-shaped frame, away from the fixing plate. This structural design allows the movable rod to move upwards, causing the U-shaped frame to move vertically upwards under the limiting action of the limiting rod, enabling the first arc-shaped fixing strips to retrieve floating objects from the inlet, making it convenient to use.

[0008] Further specifying, the retrieval mechanism also includes a crossbar and several second arc-shaped fixing strips. The crossbar is fixedly mounted on a U-shaped frame, and the several second arc-shaped fixing strips are evenly spaced and fixedly mounted on the side of the crossbar away from the fixing plate. The second arc-shaped fixing strips are located above the first arc-shaped fixing strips, and the distance between adjacent second arc-shaped fixing strips is greater than the distance between adjacent first arc-shaped fixing strips. This structural design, with a larger spacing between adjacent second arc-shaped fixing strips, allows for the retrieval of tree branches and twigs, while allowing floating objects such as plastic bottles to pass through, enabling the retrieval mechanism to classify and retrieve tree branches and twigs and floating plastic bottles separately.

[0009] Further defining the drive mechanism, it includes a fixed rod, a rotating impeller, a first drive shaft, a reducer, a second drive shaft, a third drive shaft, and a fixed gear. The fixed rod is fixedly installed inside the inlet, and the rotating impeller is rotatably installed on the side of the fixed rod near the filter plate. A slotted groove is formed inside the fixed rod, and the end of the rotating impeller's shaft extends through this groove. The first drive shaft is rotatably installed within the slot, and its end is connected to the rotating impeller via a meshing bevel gear. A cavity is formed on the fixed plate, and the reducer is fixedly installed within this cavity. The first drive shaft... The end extends into the cavity and connects to the input end of the reducer. The fixed plate has an installation slot and a through slot connecting the installation slot and the cavity. The second drive shaft is rotatably installed in the through slot and is connected to the output shaft of the reducer via a meshing bevel gear. The third drive shaft is rotatably installed in the installation slot and is connected to the second drive shaft via a meshing bevel gear. The fixed gear is fixedly installed on the third drive shaft. The slot is connected to the installation slot. A rack is provided on the side of the movable rod near the installation slot, and the rack meshes with the fixed gear. With this structural design, when water flows through the inlet, the rotating paddle rotates under the influence of the water flow. This rotation drives the third drive shaft and the fixed gear through the first drive shaft, reducer, and second drive shaft, thus coordinating with the rack to drive the retrieval mechanism, saving manpower.

[0010] Furthermore, the fixed gear has a notch. When the movable rod moves to its uppermost position, the notch rotates to the rack, and the fixed gear disengages from the rack. This structural design ensures that when the notch rotates to the rack, the meshing between the fixed gear and the rack is released, relieving the rack of stress. This allows the retrieval mechanism to quickly return to its initial position under gravity, facilitating subsequent retrieval.

[0011] Furthermore, the fixing plate is provided with a first collection groove and a second collection groove for collecting plastic bottles and tree branches, respectively. This structural design is simple and easy to use.

[0012] Furthermore, the first collection tank is located above the water inlet of the fixed plate, and the bottom of the inner wall of the first collection tank is concave downwards. This structural design allows for the collection of more plastic bottles by the concave bottom of the inner wall of the first collection tank, and also provides a blocking effect on plastic bottles at the opening of the tank, preventing them from falling out.

[0013] Furthermore, the fixed plate has an outlet on the side away from the filter plate that communicates with the first collection tank. A rotating baffle is rotatably installed inside the outlet, and a lock is provided on the rotating baffle. The rotating baffle is movably engaged with the outlet by the lock. This structural design allows the plastic bottles inside the first collection tank to be collected when the rotating baffle is opened, making collection more convenient.

[0014] Furthermore, the second collection groove is an arc-shaped groove. With this structural design, when the second arc-shaped fixing strip moves to be flush with the upper end of the fixing plate, the arc-shaped groove can connect with the second arc-shaped fixing strip to form an arc-shaped inclined surface, which allows the branches and twigs to slide down from the third collection groove more quickly.

[0015] The invention employing the above technical solution has the following advantages:

[0016] 1. This invention uses a filter plate to block floating objects at the water inlet. A drive mechanism works in conjunction with a retrieval mechanism. As water flows through the inlet, the retrieval mechanism is driven by the water flow to retrieve floating objects from the dam's water inlet channel. This greatly saves manpower. Furthermore, the fixed baffle is located above the water surface, which can block tree branches and twigs, causing them to be arranged horizontally outside the inlet under the influence of the water flow. This prevents tree branches and twigs from being inserted vertically into the mesh holes of the filter plate, thus affecting the retrieval.

[0017] 2. In this invention, when the driving mechanism drives the retrieval mechanism to work, the first arc-shaped fixing strip and the second arc-shaped fixing strip on the U-shaped frame can retrieve floating objects such as plastic bottles and tree branches respectively, and collect and store them through the first collection trough and the second collection trough, saving the time of manual retrieval and distinguishing the retrieved floating objects, thus making the retrieval and collection efficiency of floating objects higher.

[0018] 3. In this invention, a speed reducer is provided at the drive mechanism, which reduces the rotational speed at the second transmission shaft, thereby reducing the rotational speed at the fixed gear. This slows down the upward movement of the retrieval mechanism, allowing floating objects to accumulate at the filter screen for a period of time before retrieval. A notch is provided on the fixed gear that drives the movable rod, prompting the retrieval mechanism to quickly return to its initial state after retrieval. This enables the retrieval mechanism to perform cyclical retrieval activities, resulting in high retrieval efficiency. Attached Figure Description

[0019] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0020] Figure 1 This is a schematic diagram of the structure of a floating debris removal device for a dam intake channel according to the present invention;

[0021] Figure 2 This is a cross-sectional structural schematic diagram of a floating debris cleaning device for a dam intake channel according to the present invention;

[0022] Figure 3 This is a cross-sectional structural diagram of the salvage mechanism in a floating debris cleaning device for a dam intake channel according to the present invention, during operation.

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0024] Figure 5 This is a schematic diagram of the drive mechanism in a floating debris removal device for a dam intake channel according to the present invention;

[0025] Figure 6 This is a partial structural diagram of the drive mechanism in a floating debris removal device for a dam intake channel according to the present invention.

[0026] Figure 7 This is another cross-sectional view of the floating debris removal device for the intake channel of a dam according to the present invention.

[0027] The symbols for the main components are explained below:

[0028] 1. Fixed plate; 11. First collection tank; 12. Second collection tank; 13. Rotating baffle;

[0029] 2. Water inlet; 3. Filter plate; 4. Fixing baffle;

[0030] 5. Salvage mechanism; 51. Movable rod; 52. Limiting rod; 53. U-shaped frame; 54. First arc-shaped fixing strip; 55. Crossbar; 56. Second arc-shaped fixing strip;

[0031] 6. Drive mechanism; 61. Fixed rod; 62. Rotating propeller; 63. First drive shaft; 64. Reducer; 65. Second drive shaft; 66. Third drive shaft; 67. Fixed gear. Detailed Implementation

[0032] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0033] like Figures 1 to 7 As shown, a floating debris cleaning device for a dam intake channel according to the present invention includes a fixed plate 1 installed at the dam intake channel opening, an inlet 2 connected to the dam intake channel opening on the fixed plate 1, a filter plate 3 installed inside the inlet 2, a fixed baffle 4 fixedly installed on the filter plate 3, and a dredging mechanism 5 for cleaning debris and a driving mechanism 6 for driving the dredging mechanism 5 to work using water flow on the fixed plate 1.

[0034] The salvage mechanism 5 includes a movable rod 51, a limiting rod 52, a U-shaped frame 53, and several first arc-shaped fixing strips 54. The upper end of the fixing plate 1 is provided with a slot and a limiting groove. The movable rod 51 and the limiting rod 52 are respectively movably installed in the slot and the limiting groove. The U-shaped frame 53 is fixedly installed between the movable rod 51 and the limiting rod 52. One side of the U-shaped frame 53 is close to the fixing plate 1. Several first arc-shaped fixing strips 54 are evenly fixedly installed at intervals on the lower part of the U-shaped frame 53 away from the fixing plate 1. The distance between adjacent first arc-shaped fixing strips 54 is 1-12cm.

[0035] The retrieval mechanism 5 also includes a crossbar 55 and several second arc-shaped fixing bars 56. The crossbar 55 is fixedly installed on the U-shaped frame 53. Several second arc-shaped fixing bars 56 are evenly spaced and fixedly installed on the side of the crossbar 55 away from the fixing plate 1. The second arc-shaped fixing bars 56 are located above the first arc-shaped fixing bars 54. The distance between adjacent second arc-shaped fixing bars 56 is greater than the distance between adjacent first arc-shaped fixing bars 54. The distance between adjacent second arc-shaped fixing bars 56 is 20-30cm. When the floating objects are all above the second arc-shaped fixing bars 56, plastic bottles and small pieces of non-recyclable branches will fall down from the openings of adjacent second arc-shaped fixing bars 56 and be collected by the first arc-shaped fixing bars 54. This achieves the classified collection of branches and plastic bottles, making it more convenient to use. Both the first arc-shaped fixing bars 54 and the second arc-shaped fixing bars 56 are arc-shaped structures, which can push aside the floating objects outside the filter plate 3 when moving downwards, preventing the accumulation of floating objects from affecting the normal operation of the retrieval mechanism 5.

[0036] The drive mechanism 6 includes a fixed rod 61, a rotating impeller 62, a first drive shaft 63, a reducer 64, a second drive shaft 65, a third drive shaft 66, and a fixed gear 67. The fixed rod 61 is fixedly installed inside the inlet 2. The rotating impeller 62 is rotatably installed on the side of the fixed rod 61 near the filter plate 3. A slotted groove is formed inside the fixed rod 61, and the end of the rotating shaft of the rotating impeller 62 passes through the slotted groove. The first drive shaft 63 is rotatably installed in the slotted groove, and the first drive shaft 63 is connected to the end of the rotating shaft through a meshing bevel gear. A cavity is formed on the fixed plate 1, and the reducer 64 is fixedly installed in the cavity. The end of 3 extends into the cavity and connects to the input end of the reducer 64. The fixed plate 1 has an installation groove and a through groove connecting the installation groove and the cavity. The second drive shaft 65 is rotatably installed in the through groove. The second drive shaft 65 is connected to the output shaft of the reducer 64 through a meshing bevel gear. The third drive shaft 66 is rotatably installed in the installation groove. The third drive shaft 66 is connected to the second drive shaft 65 through a meshing bevel gear. The fixed gear 67 is fixedly installed on the third drive shaft 66. The slot is connected to the installation groove. The movable rod 51 has a rack on the side near the installation groove. The rack meshes with the fixed gear 67.

[0037] The fixed gear 67 has a notch. When the movable rod 51 moves to the uppermost position, the notch rotates to the rack, and the fixed gear 67 disengages from the rack.

[0038] The fixing plate 1 has a first collection groove 11 and a second collection groove 12 for collecting plastic bottles and tree branches respectively. The second collection groove 12 is an arc-shaped groove.

[0039] The first collection tank 11 is located above the water inlet 2 of the fixed plate 1, and the bottom of the inner wall of the first collection tank 11 is recessed downward.

[0040] The fixed plate 1 has an outlet on the side away from the filter plate 3 that is connected to the first collection tank 11. A rotating baffle 13 is rotatably installed inside the outlet. A lock is provided on the rotating baffle 13. The rotating baffle 13 is movably locked at the outlet by the lock.

[0041] The method of using this invention is as follows:

[0042] When in use, after installing the fixed baffle 4 close to the water surface on the filter plate 3, open the water gate at the dam to allow the water to flow through the inlet 2 into the dam channel. At this time, the filter plate 3 blocks floating objects in the water.

[0043] When the branches and twigs flow with the water towards the filter plate 3, the fixing strip 4 blocks the branches and twigs, causing them to lie horizontally outside the filter plate 3 under the influence of the water flow, thus preventing the branches and twigs from inserting into the mesh of the filter plate 3 and affecting the subsequent work of the retrieval mechanism 5.

[0044] When water flows in inlet 2, the rotating paddle 62 is rotated by force, which drives the third drive shaft 66 and the fixed gear 67 to rotate through the first drive shaft 63, the reducer 64, and the second drive shaft 65. This causes the rack and movable rod 51, which mesh with the fixed gear 67, to move upward. This causes the U-shaped frame 53 to move vertically upward under the limiting action of the limiting rod 52, so that the first arc-shaped fixing bar 54 and the second arc-shaped fixing bar 56 can respectively retrieve the plastic bottles and tree branches floating at inlet 2.

[0045] As the U-shaped frame 53 rises, the plastic bottle slides into the first collection trough 11 under the action of gravity. When the second arc-shaped fixing strip 56 moves to be flush with the upper end of the fixing plate 1, the second collection trough 12 can connect with the second arc-shaped fixing strip 56 to form an arc-shaped inclined surface, which allows the branches to slide down from the third collection trough 12 more quickly, making it easier to collect.

[0046] When the U-shaped frame 53 moves to its uppermost position, the notch of the fixed gear 67 rotates to the rack, and the meshing relationship between the fixed gear 67 and the rack is released. At this time, the rack is released from its stress, and the salvage mechanism 5 quickly returns to its initial position under the action of gravity, so as to facilitate subsequent salvage.

[0047] The above provides a detailed description of a floating debris removal device for a dam intake channel provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A device for cleaning floating debris from a dam intake channel, comprising a fixing plate (1) installed at the inlet of the dam intake channel, characterized in that: The fixed plate (1) is provided with an inlet (2) that is connected to the water inlet of the dam. A filter plate (3) is provided inside the inlet (2). A fixed baffle (4) is fixedly installed on the filter plate (3). The fixed plate (1) is provided with a retrieval mechanism (5) for cleaning up garbage and a drive mechanism (6) that drives the retrieval mechanism (5) to work using water flow. The retrieval mechanism (5) includes a movable rod (51), a limiting rod (52), a U-shaped frame (53), and several first arc-shaped fixing strips (54). The upper end of the fixed plate (1) is provided with a slot and a limiting groove. The movable rod (51) and the limiting rod (52) are respectively movably installed in the slot and the limiting groove. Inside the limiting groove, the U-shaped frame (53) is fixedly installed between the movable rod (51) and the limiting rod (52). One side of the U-shaped frame (53) is close to the fixed plate (1). Several first arc-shaped fixing strips (54) are evenly fixedly installed at intervals on the lower part of the U-shaped frame (53) away from the fixed plate (1). The driving mechanism (6) includes a fixed rod (61), a rotating paddle (62), a first transmission shaft (63), a reducer (64), a second transmission shaft (65), a third transmission shaft (66), and a fixed gear (67). The fixed rod (61) is fixedly installed inside the water inlet (2), and the rotating paddle (62) is rotatably installed on the fixed rod (61). On the side near the filter plate (3), a strip groove is provided in the fixed rod (61), and the end of the rotating shaft of the rotating impeller (62) passes through the strip groove. The first drive shaft (63) is rotatably installed in the strip groove. The first drive shaft (63) and the end of the rotating shaft are connected by meshing bevel gears. A cavity is provided on the fixed plate (1), and the reducer (64) is fixedly installed in the cavity. The end of the first drive shaft (63) extends into the cavity and is connected to the input end of the reducer (64). An installation groove and a through groove connecting the installation groove and the cavity are provided in the fixed plate (1). The second drive shaft (65) is rotatably installed in the through groove. The drive shaft (65) is connected to the output shaft of the reducer (64) through a meshing bevel gear. The third drive shaft (66) is rotatably installed in the mounting groove. The third drive shaft (66) is connected to the second drive shaft (65) through a meshing bevel gear. The fixed gear (67) is fixedly installed on the third drive shaft (66). The slot is connected to the mounting groove. The movable rod (51) is provided with a rack on the side near the mounting groove. The rack meshes with the fixed gear (67). The fixed gear (67) is provided with a notch. When the movable rod (51) moves to the uppermost position, the notch rotates to the rack, and the fixed gear (67) disengages from the rack.

2. The floating debris removal device for a dam intake channel according to claim 1, characterized in that: The salvage mechanism (5) further includes a crossbar (55) and a plurality of second arc-shaped fixing strips (56). The crossbar (55) is fixedly installed on the U-shaped frame (53). The plurality of second arc-shaped fixing strips (56) are evenly spaced and fixedly installed on the side of the crossbar (55) away from the fixing plate (1). The second arc-shaped fixing strips (56) are located above the first arc-shaped fixing strips (54). The distance between adjacent second arc-shaped fixing strips (56) is greater than the distance between adjacent first arc-shaped fixing strips (54).

3. The floating debris removal device for a dam intake channel according to claim 1, characterized in that: The fixing plate (1) is provided with a first collection trough (11) and a second collection trough (12) for collecting plastic bottles and tree branches respectively.

4. A floating debris removal device for a dam intake channel according to claim 3, characterized in that: The first collection tank (11) is located above the water inlet (2) of the fixed plate (1), and the bottom of the inner wall of the first collection tank (11) is recessed downward.

5. A floating debris removal device for a dam intake channel according to claim 3, characterized in that: The fixed plate (1) has an outlet on the side away from the filter plate (3) that is connected to the first collection groove (11). A rotating baffle (13) is rotatably installed in the outlet. A lock is provided on the rotating baffle (13). The rotating baffle (13) is movably engaged at the outlet by the lock.

6. A floating debris removal device for a dam intake channel according to claim 3, characterized in that: The second collection groove (12) is an arc-shaped groove.

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