A dredging device for canal repair and management

Abstract

A dredging device for canal repair and management includes a frame and a traveling wheel pivotally connected to the bottom of the frame, a rotating shaft is provided on the frame, one end of the rotating shaft is keyed to an end cover, a bucket is fixedly connected to the end cover, and the rotating shaft, the end cover and the bucket constitute a synchronously rotating whole; a screen cage is coaxially provided outside the rotating shaft, and a feed port is provided on the upper half of the screen cage, including an inner screen and an outer screen. The rotating bucket of the present invention can directly scoop up the silt together with vegetation and sand and gravel, and after rotating to the feed port, it enters the screen cage under the action of its own weight and the jet of the nozzle; the screen cage with different filtering targets respectively realizes the flow of vegetation, stones and silt under the joint action of the stirring rod and the jet, and the obtained silt can be directly used for subsequent solid-liquid separation operations; the jets generated to flush the silt in the bucket and the screen cage are all generated by a single row of nozzles, and this can be achieved by controlling the jet direction of the nozzle through the linkage of the slide groove on the end cover.

Description

Technical Field

[0001] The present invention relates to the field of ditch desilting, and in particular to a desilting device for repairing and managing a water channel. Background Art

[0002] During the ditch restoration process, silt removal is a crucial step. Ditch silt formation is caused by a variety of factors, including the following: sediment carryover. When water flows through a ditch, it carries suspended sediments such as silt, particulate matter, and organic matter, which gradually settle on the ditch bottom and sides, forming silt. Vegetation growth. Aquatic plants and vegetation growing along the ditch also contribute to silt formation. Plant residues and roots accumulate in the ditch, gradually forming silt. Sewage discharge. Sewage discharge and wastewater flowing into the ditch bring large amounts of organic matter and solid waste, accelerating silt formation.

[0003] Mechanical desilting is often used to remove ditch silt: excavators, buckets, or other mechanical equipment are used to remove the silt from the ditch for subsequent processing. Especially for silt in ditches and ridges, the silt is often reapplied to the ridges, allowed to air dry, and then used as part of the ridges, or even used to grow cash crops.

[0004] Before reusing the silt, it needs to be properly separated from the solid and liquid. As mentioned above, there is often vegetation growing in the ditches between the ridges of the fields. Therefore, before the solid-liquid separation of the silt, weeds need to be removed. There are currently the following ways to weed: manual weeding, which is the most basic method. Manual tools such as hoes and shovels are used to remove weeds in the silt one by one. This is suitable for small areas or situations where weeds are relatively dense; mechanical weeding, using mechanical equipment such as lawn mowers and weeders to cut the weeds on the surface of the silt, can quickly and efficiently remove large areas of weeds, and is suitable for larger projects or denser weeds; chemical herbicides, legal chemical herbicides can be used to kill or control the growth of weeds.

[0005] Chemical herbicides, if they kill vegetation directly, must be applied some time before mechanical desilting. The dead vegetation must also be manually handled. Controlling vegetation growth requires early intervention, making it ineffective for repairing and desilting ditches already overgrown with weeds. Manual desilting is labor-intensive and inefficient, necessitating mechanical desilting.

[0006] However, current mechanical silt removal cannot separate vegetation from silt. The cleared vegetation and silt undergo solid-liquid separation together, which will clog the equipment for solid-liquid separation. Therefore, a device that can separate vegetation before solid-liquid separation of silt is needed. Summary of the Invention

[0007] According to the problems raised in the background technology, the present invention provides a silt removal device for canal repair and management to solve the problems, and the present invention will be further explained below.

[0008] A dredging device for canal repair and management includes a frame and a traveling wheel pivotally connected to the bottom of the frame, a rotating shaft is provided on the frame, one end of the rotating shaft is keyed to an end cover, and a bucket is fixedly connected to the end cover, and the rotating shaft, the end cover and the bucket constitute a synchronously rotating whole; a screen cage is coaxially provided outside the rotating shaft, and a feed port is provided on the upper half of the screen cage, including an inner screen and an outer screen, the inner screen allows silt and water to pass through while intercepting vegetation and stones, and the outer screen allows water to pass through while intercepting silt; a coaxial positioning ring is provided on the side of the frame and the end cover facing the screen cage, the two ends of the screen cage fit in the positioning ring, and the screen cage is stationary relative to the frame.

[0009] Preferably, two symmetrical buckets are arranged in a circular array on the end caps. The buckets are located between the two end caps, with both sides of the buckets pivotally connected to the end caps, which are connected to the buckets via two connecting rods. This is intended to utilize the stability of the triangular structure to strengthen the fastening of the buckets.

[0010] Preferably, a sewage suction head is installed in the cavity of the screen cage, and the sewage suction head is connected to a sewage suction pump fixed on the frame to suck out the sludge stored in the cavity of the screen cage for subsequent treatment.

[0011] Preferably, a section of the rotating shaft located inside the screen cage is sleeved with a keyed sleeve, and a stirring rod is fixedly connected to the outside of the sleeve. When the rotating shaft rotates, the stirring rod is linked to rotate to stir the sludge entering the annular inner screen.

[0012] Preferably, a row of nozzles arranged parallel to the rotating shaft is fixed on the frame for generating jets. A chute is provided on the end cover, and the chute includes a distal chute section, a proximal chute section, and a connecting chute section connecting the distal chute section and the proximal chute section, which are at different distances from the rotating shaft. A slider is built into the chute. The single row of nozzles is fixed at one end of a rotating rod, which is pivotally connected to the frame. The slider is pivotally connected to the end of the rotating rod different from the nozzle via a pivoted fixed-length rod. When the bucket rotates to the feed port for feeding, the nozzle faces the bucket, and the generated jet flushes the bucket, flushing the sludge in the bucket into the screen cage. When the bucket rotates away from the feed port, the nozzle rotates a certain angle toward the feed port, and the generated jet directly flushes the sludge in the screen cage. That is, the flushing effect on the bucket and the screen cage is achieved by the single row of nozzles.

[0013] Preferably, the filter assembly includes a filter cage with a lightweight float attached to the top. The cage houses a suction head connected to a water pump via a hose. The float suspends the cage above the water, while the cage isolates vegetation, preventing debris such as rocks and floating vegetation from being sucked up by the suction head.

[0014] Beneficial effects: Compared with the prior art, the rotating bucket of the present invention can scoop up the silt directly together with the vegetation and sand and gravel, and after rotating to the feed port, it enters the screen cage under the action of its own weight and the jet of the nozzle; the screen cages with different filtering targets respectively realize the flow of vegetation, stones and silt under the joint action of the stirring rod and the jet, and the obtained silt can be directly used for subsequent solid-liquid separation operations; the jets generated to flush the silt in the bucket and screen cage are all generated by a single row of nozzles, which can be achieved by controlling the jet direction of the nozzle through the linkage of the slide groove on the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : A schematic structural diagram of the dredging device of the present invention;

[0016] Figure 2 : Schematic diagram of the end structure of the dredging device;

[0017] Figure 3 : Schematic diagram of the structure of the screen positioned on the frame and end;

[0018] Figure 4 : The effect of the nozzle jet flushing on the bucket;

[0019] Figure 5 : The effect of the nozzle jet flushing on the screen;

[0020] Figure 6 : Schematic diagram of the structure of the end cover linkage nozzle;

[0021] Figure 7 : Schematic diagram of the structure of the end cover;

[0022] Figure 8 : The effect diagram of the silt clearing device of the present invention;

[0023] Figure 9 : Schematic diagram of the structure of the filtering component;

[0024] In the figure: rotating shaft 1, end cover 2, chute 201, distal trough section 202, proximal trough section 203, connecting trough section 204, bucket 3, screen cage 4, inner screen 5, outer screen 6, feed port 7, positioning ring 8, connecting rod 9, suction head 10, stirring rod 11, nozzle 12, slider 13, rotating rod 14, fixed-length rod 15, filter cage 16, float 17, water suction head 18. DETAILED DESCRIPTION

[0025] Next, combine the Figure 1-9 A specific embodiment of the present invention is described in detail.

[0026] Reference Attachment Figure 1-2 A silt removal device for canal repair and management is used to remove silt during canal repair between field ridges. It can walk on field ridges and includes a frame and walking wheels pivotally connected to the bottom of the frame. A rotating shaft 1 is provided on the frame. An end of the rotating shaft 1 is keyed to an end cover 2. The rotating shaft rotates under the drive of a driving device such as a motor. The rotating shaft and the end cover are keyed to form a rotating whole. A bucket 3 is fixedly connected to the end cover 2, so the rotating shaft 1, the end cover 2 and the bucket 3 form a synchronously rotating whole.

[0027] Reference Attachment Figure 1-3 A screen cage 4 is coaxially mounted outside the rotating shaft 1. The screen cage includes an inner screen 5 and an outer screen 6. The cross-section of the screen cage is annular with a notch located at the feed port 7. The inner screen has a larger aperture than the outer screen, and a cavity for temporarily storing sludge is formed between the inner and outer screens. The screen cage 4 is stationary relative to the frame, that is, the position of the feed port 7 is maintained constant. Specifically, a coaxial positioning ring 8 is provided on the side of the frame and the end cover 2 facing the screen cage 4. Both ends of the screen cage fit within the positioning ring, and the end connected to the frame is fixedly connected to the frame via fasteners. This connection method is a conventional technical means and will not be described in detail in this embodiment.

[0028] When the shaft 1 is driven to rotate, the linked end cover 2 and bucket 3 rotate synchronously. At this time, the screen cage 4 rotates relative to the end cover 2 but remains stationary relative to the frame. The bucket 3 remains stationary relative to the end cover 2 but rotates relative to the frame. Preferably, both ends of the bucket 3 are connected to end covers. The difference between the two end covers is that the end cover 2 is keyed to the shaft 1, while the other end cover is engaged with a positioning ring 8 on the frame.

[0029] In this embodiment, two symmetrical buckets 3 are provided in a circular array on the end cover 2. The buckets 3 are located between the two end covers. The two sides of the buckets are pivotally connected to the end cover 2. The end cover 2 is connected to the buckets 3 through two connecting rods 9, aiming to utilize the stability of the triangular structure to strengthen the fastening of the buckets.

[0030] The feed inlet 7 is located in the upper half of the screen cage 4. When the bucket is rotated to the feed inlet 7, it tilts downward, and the shoveled sludge slides down the screen cage 4 under gravity, entering the screen cage 4 through the feed inlet and being located within the inner screen 5. The inner screen 5 has a mesh size that allows the passage of sludge and water while retaining vegetation and rocks. The outer screen 6 has a mesh size that allows the passage of water while retaining sludge. Therefore, vegetation and rocks mixed with the sludge entering the screen cage are trapped within the inner screen 5, while the sludge is retained and stored in the cavity within the screen cage 4.

[0031] Reference Attachment Figure 3 A sewage suction head 10 is installed in the cavity of the screen cage 4. Based on the characteristics that the screen cage and the frame are stationary, the sewage suction head 10 can be connected to a sewage suction pump fixed on the frame to suck out the sludge stored in the cavity of the screen cage 4 for subsequent treatment. Since the vegetation and stones entrained in the sludge are removed, the sludge can be further separated from the solid and liquid and then spread on the ridge for natural air drying and other operations.

[0032] The outer cover of the rotating shaft 1 located in the screen cage 4 is provided with a key-connected sleeve, and a stirring rod 11 is fixedly connected to the outside of the sleeve. When the rotating shaft rotates, in addition to the linkage rotation of the bucket, the stirring rod is also linked to rotate, aiming to stir the silt entering the annular inner screen 5 and accelerate the rate at which the silt enters the screen cage 4 cavity.

[0033] Reference Attachment Figure 4 A row of nozzles 12 arranged parallel to the rotating shaft are also fixed on the frame. The nozzles are used to generate jets. When the bucket 3 rotates to the feed port 7, the jets are directed to the bucket, flushing the silt attached to the bucket to the screen cage 4. Figure 5 A row of nozzles can also be configured. The jets generated by these nozzles are directed toward the feed port 7. The jets generated enter the screen cage 4 from the feed port 7, flushing the sludge in the screen cage and accelerating the filtration rate of the sludge together with the stirring rod. However, when the bucket passes over the feed port 7, the bucket has a blocking effect on the jet directed toward the screen cage.

[0034] Reference Attachment Figure 6 Therefore, in this embodiment, only a single row of nozzles 12 is used, and the spray direction of nozzles 12 is controlled by a linkage relationship with the rotation of the bucket: when the bucket 3 rotates to the feed port 7 for feeding, the nozzles 12 face the bucket, and the generated jet flushes the bucket, flushing the sludge in the bucket into the screen cage; when the bucket 3 rotates away from the feed port 7, the nozzles 12 rotate a certain angle, facing the feed port 7, and the generated jet directly flushes the sludge in the screen cage. That is, the flushing effect on the bucket and the screen cage is achieved by a single row of nozzles. The specific scheme is as follows:

[0035] Reference Attachment Figure 7 A slide groove 201 is provided on the end cover 2, and the slide groove 201 includes a distal groove section 202, a proximal groove section 203, and a connecting groove section 204 connecting the distal groove section 202 and the proximal groove section 203, which are at different distances from the rotating axis. A slider 13 is built into the slide groove 201. At the same time, the single-row nozzle 12 is fixed at one end of a rotating rod 14, and this rotating rod 14 is pivoted to the frame. The slider 13 is pivoted to the end of the rotating rod 14 different from the nozzle 12 through a pivot fixed-length rod 15.

[0036] When the end cover 2 rotates, the slider 13 cyclically contacts between the far groove section 202, the near groove section 203, and the connecting groove section 204, that is, the distance between the slider 13 and the rotating shaft 1 changes periodically. In this embodiment, when the slider 13 is in the far groove section 202, the nozzle 12 is facing the feed port 7, and when the slider 13 is in the near groove section 203, the nozzle 12 is facing the bucket 3.

[0037] The number of circulation segments formed by the distal trough segment 202, the proximal trough segment 203, and the connecting trough segment 204 is the same as the number of buckets. The area between the proximal trough segment 203 and the edge of the end cap 2 serves as the connection point for the connecting rod 9 connecting the bucket and the end cap, making the overall structure compact. Simultaneously, as the end cap rotates, the slider slides within the chute, generating mechanical impact at the junction of the chute segments, which in turn generates micro-vibration in the entire device. This micro-vibration facilitates the sliding of sludge in the bucket toward the screen cage and the flow of sludge within the screen cage.

[0038] Reference Attachment Figure 8 The silt-clearing device of the present invention can travel on ridges, achieving continuous, automated operation. To achieve the goal of using local materials, the fluid sprayed from the nozzle 12 for flushing can be directly drawn from the water within the ditch. In this embodiment, the nozzle 12 is connected to a water pump via a hose. The water pump is fixed to a frame. The water suction end of the water pump is connected to a filter assembly. This filter assembly is located behind the silt-clearing device in its forward direction, dragging the filter assembly with it as it moves.

[0039] According to common sense, the jet described by the nozzle needs to have a high flow rate to have a good flushing effect, and the large volume of impurities contained in the high-flow fluid will have a fatal damage effect on the nozzle. This embodiment provides water without large volume impurities to the water pump. The technical solution adopted is as follows: Refer to the attached Figure 9 The filter assembly includes a filter cage 16 with a lightweight float 17, such as foam, attached to the top. A suction head 18 is built into the cage, connected to a water pump via a hose. The float suspends the cage above the water, while the cage isolates vegetation, preventing debris like rocks and floating vegetation from being sucked up by the suction head.

[0040] After working for a period of time, the vegetation and sand and gravel trapped in the inner screen 5 of the screen cage 4 accumulate and need to be cleaned. At this time, the device can be stopped, the fasteners connecting the screen cage to one end of the frame can be removed, the screen cage 4 can be turned over, and the feed port 7 of the screen cage 4 can be facing downward to pour out the trapped vegetation and sand and gravel, or completely clean them through the jet of the nozzle 12.

[0041] The rotating bucket of the present invention can scoop up the silt directly together with the vegetation and sand and gravel, and after rotating to the feed port, it enters the screen cage under the action of its own weight and the jet of the nozzle; the screen cage with different filtering targets realizes the flow of vegetation, stones and silt respectively under the joint action of the stirring rod and the jet, and the obtained silt can be directly used for subsequent solid-liquid separation operations; the jets generated to flush the silt in the bucket and screen cage are all generated by a single row of nozzles, and this can be achieved by controlling the jet direction of the nozzle through the linkage of the slide groove on the end cover.

[0042] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A dredging device for canal repair and management, comprising a frame and a travel wheel pivotally connected to the bottom of the frame, characterized in that: A rotating shaft (1) is provided on the frame, one end of the rotating shaft (1) is key-connected to an end cover (2), a bucket (3) is fixedly connected to the end cover (2), and the rotating shaft, the end cover and the bucket constitute a synchronously rotating whole; a screen cage (4) is coaxially provided outside the rotating shaft (1), and a feed port (7) is provided on the upper half of the screen cage, comprising an inner screen (5) and an outer screen (6), the inner screen allowing silt and water to pass through while intercepting vegetation and stones, and the outer screen allowing water to pass through while intercepting silt; a coaxial positioning ring (8) is provided on the side of the frame and the end cover (2) facing the screen cage (4), the two ends of the screen cage fit in the positioning ring, and the screen cage is stationary relative to the frame; Two symmetrical buckets (3) are provided in a circular array on the end cover (2). The buckets (3) are located between the two end covers. Both sides of the buckets are pivotally connected to the end cover (2). The end cover (2) is connected to the buckets (3) via two connecting rods (9). A sewage suction head (10) is built into the cavity of the screen cage (4), and the sewage suction head is connected to a sewage suction pump fixed on the frame; The rotating shaft (1) is located inside the screen cage (4) and is sleeved with a key-connected sleeve, and a stirring rod (11) is fixedly connected to the outside of the sleeve; A row of nozzles (12) arranged parallel to the rotating shaft is also fixed on the frame for generating jets. The end cover (2) is provided with a slide groove (201), the slide groove (201) including a far groove section (202), a near groove section (203) at different distances from the rotating shaft, and a connecting groove section (204) connecting the far groove section and the near groove section. The slide groove (201) has a built-in slider (13); the row of nozzles (12) is fixed to one end of a rotating rod (14), the rotating rod (14) is pivotally connected to the frame, and the slider (13) is pivotally connected to the end of the rotating rod (14) different from the nozzle (12) through a pivotally connected fixed-length rod (15).

2. The dredging device for canal repair and management according to claim 1, characterized in that: The invention also includes a filter assembly, including a filter cage (16), a light float (17) is tied to the top of the filter cage (16), and a water suction head (18) is built into the filter cage (16), and the water suction head is connected to a water pump through a hose.

3. The dredging device for canal repair and management according to claim 2, characterized in that: The area between the near-groove section (203) and the edge of the end cover (2) serves as the connection position of the connecting rod (9) connecting the bucket and the end cover.

Images