Simple dredging device suitable for narrow space

Abstract

The utility model discloses a simple desilting device suitable for a narrow space, relates to the technical field of hydraulic structure engineering, and aims to solve the problem of low efficiency of large-area desilting operation in a limited space, and adopts the technical scheme that the simple desilting device comprises a chassis frame, and walking rollers are arranged at four opposite angles of the lower side of the chassis frame. The four walking idler wheels are arranged on the lower side of the chassis frame, flexible movement of the dredging device can be facilitated, the long push-pull rod and the short push-pull rod are arranged at the front end and the rear end of the chassis frame respectively, and the problem that force is difficult to bend when a user holds a high-pressure water gun to wash in a small clearance environment is solved. Compared with the conventional process technology of manually holding a high-pressure water gun to wash, the mud scraping device has the advantages that the energy consumption is greatly reduced, the water resource is saved, the labor is more labor-saving and efficient, and meanwhile, the mud scraping device has stronger applicability especially in a small clearance operation environment.

Description

Technical Field

[0001] The utility model belongs to the field of hydraulic structure engineering, and in particular relates to a simple silt removal device suitable for narrow spaces. Background Art

[0002] In hydraulic structure projects, some large ships or hydraulic structures are often built in docks. Multiple products are under construction in one dock. Due to inconsistent progress arrangements, when the first product is undocking, the dock needs to be opened and connected to the external waters. At this time, the external silt will flow into the dock. After the first product is undocking, the connection between the dock and the external waters is closed to continue building subsequent products. At this time, a layer of silt of varying thickness has been deposited on the bottom of the dock under the hydraulic product to be continued to be built, which will affect the construction environment and requires dredging.

[0003] The traditional operation method generally adopts high-pressure water pipes combined with manual dredging, but the clearance between the bottom of hydraulic products and the bottom of the dock is often relatively narrow. When special products such as ultra-large steel-shell immersed tubes are prefabricated in the dock, the clearance is within 1m, and the lowest position is even only 0.7m. The operating space is very limited. At this time, large-scale dredging operations in limited space are inefficient, affecting the overall product construction progress.

[0004] In summary, the utility model provides a simple silt removal device suitable for narrow spaces to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a simple silt cleaning device suitable for narrow spaces. The utility model has the advantages that by arranging four walking rollers on the lower side of the chassis frame, the silt cleaning device can be flexibly moved, and the long push-pull rod and the short push-pull rod respectively arranged at the front and rear ends of the chassis frame can be adjusted and coordinated according to the actual situation on site, so that workers can easily and flexibly adjust their postures when bending over to work, solving the problem of difficulty in bending over to apply force when washing with a hand-held high-pressure water gun in a small clearance environment. At the same time, it can also better adapt to the working needs of different clearance environments. In addition, by arranging between the upper limit slot and the scraper plate Two steel pins enable the scraper blade's own weight effect to achieve the purpose of stable forward scraping of mud under the artificial thrust of the device, and utilize the screw adjustment assembly arranged between the lifting frame and the scraper blade to achieve the purpose of lifting and lowering the heavy scraper blade. Through the slurry suction mechanism arranged on the chassis frame, the silt is continuously sucked by the dredging device during the forward scraping process, which effectively reduces the resistance of the scraper blade when scraping the silt and greatly improves the working efficiency of the device. Compared with the conventional process technology of manual hand-held high-pressure water gun flushing, it greatly reduces energy consumption, saves water resources, and is more labor-saving and efficient. At the same time, it is more applicable, especially in small clearance working environments.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A simple silt removal device suitable for narrow spaces comprises a chassis frame and a storage bucket, wherein four diagonal positions on the lower side of the chassis frame are provided with walking rollers, and the front and rear ends of the opposite sides of the chassis frame are respectively rotatably matched with a long push-pull rod and a short push-pull rod, wherein a plurality of blocks are fixed on the lower side of the long push-pull rod, and the upper end of the short push-pull rod corresponds to the plurality of blocks;

[0008] Two vertically arranged limit slots are fixed to the front end of the chassis frame, and scrapers are slidably fitted in the two limit slots. Two steel pins are installed between the upper part of the scraper and the upper limit slots. A lifting frame is fixed above the front end of the chassis frame, and a screw adjustment assembly is installed between the lifting frame and the upper part of the scraper. A slurry suction mechanism is installed on the chassis frame, one end of the slurry suction mechanism corresponds to the storage bucket, and the other end of the slurry suction mechanism is located on the opposite sides of the scraper.

[0009] By adopting the above technical scheme, by arranging four walking rollers on the lower side of the chassis frame, the flexible movement of the dredging device can be facilitated, and the long push-pull rods and the short push-pull rods respectively arranged at the front and rear ends of the chassis frame can be adjusted and coordinated according to the actual situation on site, so that workers can easily and flexibly adjust their postures when bending over to work, which solves the difficult problem of bending over to exert force when washing with a hand-held high-pressure water gun in a small clearance environment. At the same time, it can also better adapt to the working needs of different clearance environments. In addition, by arranging two steel pins between the upper limit slot and the scraper plate, the deadweight effect of the scraper plate can achieve the purpose of stable forward scraping of mud under the artificial thrust of the device, and utilize The screw adjustment assembly arranged between the lifting frame and the scraper blade is used to achieve the purpose of raising and lowering the heavy-duty scraper blade. The slurry suction mechanism arranged on the chassis frame can make the slurry suction mechanism push and scrape the accumulated silt on the front side of the scraper blade to suck and clean it, and use the storage bucket to collect the silt, so as to achieve the purpose of continuously sucking the silt during the forward pushing and scraping process of the dredging device, effectively reducing the resistance of the scraper blade when scraping the silt, and greatly improving the working efficiency of the device. Compared with the conventional process technology of manual hand-held high-pressure water gun washing, it fully reduces energy consumption, saves water resources, and is more labor-saving and efficient. At the same time, it is more applicable, especially in small clearance working environments.

[0010] The utility model is further configured as follows: the chassis frame includes a square bottom frame, a straight frame and an oblique frame fixed to the front and rear ends of the upper side of the square bottom frame, the adjacent ends of the straight frame and the oblique frame are fixed, and the two limiting grooves are respectively fixed to the upper and lower ends of the front side of the straight frame.

[0011] By adopting the above technical solution, by arranging mutually fixed straight frames and inclined frames at the front and rear ends of the upper side of the square bottom frame, the chassis frame as a whole is more stable, and at the same time, the two limiting grooves can be fixed to the front side of the straight frame, so as to better prepare for the next step of installing the scraper.

[0012] The utility model is further configured as follows: the lifting frame is a U-shaped frame structure, and the two ends of the U-shaped frame structure are fixed to the two ends above the straight frame. The screw adjustment assembly includes a screw that is slidably matched with the middle part of the upper part of the lifting frame, and a movable nut that is threadedly matched with the peripheral side of the screw. The lower end of the screw is fixed to the middle part above the scraper, and the movable nut is located above the lifting frame.

[0013] By adopting the above technical solution, a screw is set in the middle part above the lifting frame, and the lower end of the screw is fixed to the top of the scraper plate. The screw can be driven up and down by a movable nut, so that the screw drives the scraper plate to achieve the purpose of lifting and lowering the plate, making it more convenient to use.

[0014] The utility model is further configured as follows: the slurry suction mechanism includes two supporting brackets respectively fixed on opposite sides of the front end of the square bottom frame, a movable bolt threadedly engaged with the upper front end of the supporting bracket, a sludge suction pump fixed inside the square bottom frame, two slurry suction pipes fixed on one side of the sludge suction pump, a slurry discharge pipe fixed on the other side of the sludge suction pump, and two weight sensors respectively installed on the lower sides of the front ends of the two slurry suction pipes, and the weight sensors are electrically connected to the sludge suction pump.

[0015] By adopting the above technical scheme, a sludge suction pump is arranged on the inner side of the square bottom frame, and a weight sensor is arranged on the lower side of the front end of the slurry suction pipe, so that the weight sensor can sense whether there is sludge inside the front end of the slurry suction pipe, thereby starting the sludge suction pump, and completing the sludge suction operation on the accumulated sludge through the two slurry suction pipes and the slurry discharge pipe, thereby further improving the working efficiency of the device.

[0016] The utility model is further configured as follows: the movable bolt is clamped with the front end of the slurry suction pipe, one end of the slurry discharge pipe corresponds to the storage bucket, the two slurry suction pipes are respectively located above the two supporting frames, and the front ends of the two slurry suction pipes are located on opposite sides of the scraper, the front end of the slurry suction pipe extends out of the front side of the limiting slot, and the extending length is 5 cm.

[0017] By adopting the above technical scheme, the slurry suction pipe can be supported in position by the setting of the supporting frame, and the front end of the slurry suction pipe is limited and fixed on the upper side of the front end of the supporting frame by the movable bolt, thereby further ensuring the stability of the slurry suction pipe and eliminating the swinging of the slurry suction pipe during operation, so that the two slurry suction pipes are better located on the opposite sides of the scraper to suck the sludge, and the front end of the slurry suction pipe extends out 5 cm in front of the limiting groove, so as to better suck the sludge pushed and scraped by the front side of the scraper.

[0018] The utility model is further configured as follows: the two weight sensors are located on the rear side of the scraper blade, the front end of the slurry suction pipe is configured as a bell mouth, an inlet is provided on one side of the sludge suction pump and an outlet is provided on the other side, the rear ends of the two slurry suction pipes are fixedly connected to the inlet, and the other end of the slurry discharge pipe is fixedly connected to the outlet.

[0019] By adopting the above technical scheme, the trumpet mouth is set to allow the sludge to enter better through the front end of the slurry suction pipe, so that the sludge enters the inlet of the sludge suction pump through the slurry suction pipe, enters the slurry discharge pipe through the outlet of the sludge suction pump, and is finally discharged into the storage bucket through the slurry discharge pipe for sludge collection, thereby achieving the purpose of scraping and sucking sludge at the same time, and better completing the dredging operation. In addition, the weight sensor is located on the rear side of the scraper blade, which can prevent the scraper blade from causing damage to the weight sensor when pushing and scraping the accumulated sludge.

[0020] The utility model is further configured as follows: the lower ends of the long push-pull rod and the short push-pull rod are respectively rotatably matched with the front and rear ends of the opposite sides of the square bottom frame, and the long push-pull rod is located above the short push-pull rod.

[0021] By adopting the above technical solution, the lifting height of the long push-pull rod and the short push-pull rod can be adjusted by rotating the rotation angle of the lower ends of the long push-pull rod and the short push-pull rod, and the short push-pull rod below is used to fix the position of the long push-pull rod above, thereby achieving different height adjustments, allowing workers to easily and flexibly adjust their posture when bending over to work, solving the problem of difficulty in bending over to exert force when washing with a handheld high-pressure water gun in a small clearance environment, and at the same time, it can better adapt to the working needs of different clearance environments.

[0022] The utility model is further configured as follows: bolt holes are provided at the middle of the clamping block and at the upper end of the short push-pull rod, and bolts are fitted in the inner threads of two corresponding bolt holes.

[0023] By adopting the above technical solution, the short push-pull rod and the block on the lower side of the long push-pull rod are fixedly connected by bolts, so that the short push-pull rod, the long push-pull rod and the chassis frame form a stable triangle, thereby achieving stable support for the long push-pull rod.

[0024] The utility model is further configured as follows: two pin holes are provided on the upper part of the scraper blade and in the middle part of the upper limiting notch, and the steel pin is located in the two pin holes opposite to each other.

[0025] By adopting the above technical solution, the scraper plate is fixedly connected to the upper limiting groove through the steel pin after the plate is dropped into place, thereby limiting the scraper plate and allowing the scraper plate to better scrape the mud on the ground.

[0026] In summary, the beneficial technical effects of the utility model are:

[0027] 1. By arranging four walking rollers on the lower side of the chassis frame, the flexible movement of the dredging device can be facilitated, and the long push-pull rods and short push-pull rods respectively arranged at the front and rear ends of the chassis frame can be adjusted and coordinated according to the actual situation on site, so that workers can easily and flexibly adjust their postures when bending over to work, which solves the difficulty of bending over to exert force when washing with a hand-held high-pressure water gun in a small clearance environment. At the same time, it can also better adapt to the work needs of different clearance environments. By arranging two steel pins between the upper limit slot and the scraper blade, the deadweight effect of the scraper blade can achieve the purpose of stable forward scraping under the artificial thrust of the device, and the screw adjustment assembly arranged between the lifting frame and the scraper blade can be used to achieve the purpose of lifting and lowering the heavy scraper blade.

[0028] 2. The slurry suction mechanism arranged on the chassis frame can push and scrape the accumulated silt on the front side of the scraper to clean it up, and use the storage bucket to collect the silt, so as to achieve the purpose of continuously sucking the silt by the dredging device in the process of pushing and scraping forward, effectively reducing the resistance of the scraper when pushing and scraping the silt, and greatly improving the working efficiency of the device. Compared with the conventional process technology of manual hand-held high-pressure water gun washing, it fully reduces energy consumption, saves water resources, and is more labor-saving and efficient. At the same time, it is more applicable, especially in small clearance working environments.

[0029] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0031] Figure 1 This is a schematic diagram of a three-dimensional structure of a storage bucket assembly according to an embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of a three-dimensional structure of a long push-pull rod assembly according to an embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of a three-dimensional structure of a chassis frame assembly according to an embodiment of the utility model;

[0034] Figure 4 This is a schematic diagram of the cross-sectional structure of a screw assembly according to an embodiment of the utility model;

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Chassis frame; 101. Square bottom frame; 102. Straight frame; 103. Oblique frame; 2. Walking roller; 3. Long push-pull rod; 4. Short push-pull rod; 5. Block; 6. Limiting slot; 7. Scraper; 8. Steel pin; 9. Lifting frame; 10. Screw; 11. Movable nut; 12. Suction pump; 13. Slurry suction pipe; 14. Bell mouth; 15. Weight sensor; 16. Support frame; 17. Slurry discharge pipe; 18. Storage bucket. DETAILED DESCRIPTION

[0037] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0038] Reference Figure 1-4 , which is a simple silt removal device suitable for narrow spaces disclosed by the utility model, comprising: a chassis frame 1, a storage bucket 18, walking rollers 2 are installed at the four diagonal positions on the lower side of the chassis frame 1, and the front and rear ends of the opposite sides of the chassis frame 1 are respectively rotatably matched with a long push-pull rod 3 and a short push-pull rod 4, a plurality of clamping blocks 5 are fixed on the lower side of the long push-pull rod 3, and the upper ends of the short push-pull rod 4 correspond to the plurality of clamping blocks 5;

[0039] Two upper and lower limit slots 6 are fixed to the front end of the chassis frame 1, and scrapers 7 are slidably fitted in the two limit slots 6. Two steel pins 8 are installed between the upper part of the scraper 7 and the upper limit slots 6. A lifting frame 9 is fixed to the upper part of the front end of the chassis frame 1, and a screw adjustment assembly is installed between the lifting frame 9 and the upper part of the scraper 7. A slurry suction mechanism is installed on the chassis frame 1, one end of the slurry suction mechanism corresponds to the storage barrel 18, and the other end of the slurry suction mechanism is located on the opposite sides of the scraper 7.

[0040] The application of one aspect of this embodiment is as follows: when using the simple dredging device, the lifting height of the long push-pull rod 3 and the short push-pull rod 4 can be adjusted according to the actual working clearance height and the comfortable working height of the workers. The short push-pull rod 4 is first rotated to increase or decrease the angle between the lower end of the short push-pull rod 4 and the chassis frame 1, thereby changing the inclination degree of the short push-pull rod 4. At this time, the short push-pull rod 4 supports and fixes the long push-pull rod 3. When the inclination angle of the short push-pull rod 4 is larger, the lifting height of the long push-pull rod 3 is lower. Conversely, after the height adjustment of the long push-pull rod 3 is completed, the worker manually pushes the long push-pull rod 3 to drive the four walking rollers 2 on the lower side of the chassis frame 1 to move. When moving to the dredging site, the screw adjustment component is manually rotated upwards so that the screw adjustment component cancels the scraping of the mud. The scraper 7 is lifted and positioned, and then the scraper 7 is lowered by its own weight. When the scraper 7 is lowered to the lower side and contacts the ground, two steel pins 8 are installed between the upper part of the scraper 7 and the upper limiting slot 6, so as to limit the position of the scraper 7. Then the device is pushed to move, so that the scraper 7 scrapes and cleans the silt on the ground. When the scraper 7 is scraping the silt, the silt pushed by the front side of the scraper 7 will gradually thicken. When the silt thickens to the position of the other end of the slurry suction mechanism, the slurry suction mechanism is started, and the slurry suction mechanism sucks the raised silt through the other end, and discharges it into the storage bucket 18 through one end of the slurry suction mechanism, so that the silt removal device continuously sucks the silt during the forward pushing and scraping process, thereby completing the use of the simple silt removal device in a narrow space. It should be noted that all electrical equipment involved in this application can be powered by batteries or external power supplies.

[0041] Reference Figure 2-3 The chassis frame 1 of this embodiment includes a square bottom frame 101, a straight frame 102 and an oblique frame 103 fixed to the front and rear ends of the upper side of the square bottom frame 101, the adjacent ends of the straight frame 102 and the oblique frame 103 are fixed, and two limiting notches 6 are respectively fixed to the upper and lower ends of the front side of the straight frame 102. The square bottom frame 101, the straight frame 102 and the oblique frame 103 are welded as one body to make the chassis frame 1 more stable, and then the upper and lower ends of the front side of the straight frame 102 are provided with upper and lower limiting notches 6 arranged up and down, so that the scraper 7 is located in the two limiting notches 6 for lifting and lowering. When the device needs to be moved, the scraper 7 is lifted until its lower side is flush with the lower side of the chassis frame 1. The scraper 7 is in the shape of a square, and the heavy steel plate weighs about 60kg. When the device is scraping mud and dredging, the scraper 7 is in a free-falling state.

[0042] Reference Figure 2-3The lifting frame 9 of this embodiment is a U-shaped frame structure, and the two ends of the U-shaped frame structure are fixed to the two ends above the straight frame 102. The screw adjustment assembly includes a screw 10 that is slidably matched with the middle part of the upper part of the lifting frame 9, and a movable nut 11 that is threadedly matched with the peripheral side of the screw 10. The lower end of the screw 10 is fixed to the middle part of the upper part of the scraper 7, and the movable nut 11 is located above the lifting frame 9. When the scraper 7 needs to be lifted, the movable nut 11 is manually screwed downward so that the movable nut 11 and the screw 10 are threadedly matched to drive the screw 10 to rise, and then the screw 10 synchronously drives the scraper 7 to rise, so that the lower end of the scraper 7 is flush with the lower side of the chassis frame 1. When the scraper 7 is needed to scrape mud and dredge, the movable nut 11 is manually screwed upwards so that the movable nut 11 and the screw 10 can cooperate with each other to drive the screw 10 to descend, and then the screw 10 synchronously drives the scraper 7 to descend. After the scraper 7 falls into place, the movable nut 11 is further screwed upwards by two threads so that the scraper 7 can exert its own weight effect.

[0043] Reference Figure 1-2 The slurry suction mechanism of this embodiment includes two support brackets 16 respectively fixed on opposite sides of the front end of the square bottom frame 101, active bolts threadedly engaged with the upper front end of the support brackets 16, a sludge suction pump 12 fixed inside the square bottom frame 101, two slurry suction pipes 13 fixed on one side of the sludge suction pump 12, a slurry discharge pipe 17 fixed on the other side of the sludge suction pump 12, and two weight sensors 15 respectively installed on the lower side of the front end of the two slurry suction pipes 13, and the weight sensor 15 is electrically connected to the sludge suction pump 12. A controller is electrically connected between the weight sensor 15 and the sludge suction pump 12. When the dredging device is pushed forward, the gradually thickened sludge will enter the front ends of the two slurry suction pipes 13. At this time, the weight sensor 15 senses the increase in weight at the front ends of the slurry suction pipes 13, and transmits a signal to the controller, and then the controller controls the sludge suction pump 12 to start, and the sludge suction pump 12 is used to suck the sludge through the two slurry suction pipes 13, and then the sludge is discharged into the storage bucket 18 through the slurry discharge pipe 17 for collection.

[0044] The length of the slurry discharge pipe 17 is not limited, and the storage bucket 18 is placed outside the sludge field. The slurry discharge pipe 17 can be stretched to a certain distance to meet the requirements of off-site storage during actual use.

[0045] Reference Figure 1-2The movable bolt of this embodiment is clamped with the front end of the slurry suction pipe 13, one end of the slurry discharge pipe 17 corresponds to the storage bucket 18, the two slurry suction pipes 13 are respectively located above the two support brackets 16, and the front ends of the two slurry suction pipes 13 are located on the opposite sides of the scraper 7, and the front ends of the slurry suction pipes 13 extend out of the front side of the limiting slot 6, and the extension length is 5 cm. When using two slurry suction pipes 13, the two slurry suction pipes 13 are respectively placed above the two support brackets 16 to be suspended, and then the movable bolts are tightened so that the movable bolts and the support brackets 16 are threadedly matched to fix the front end of the slurry suction pipe 13, thereby completing the fixation of the position of the slurry suction pipe 13, and then the front ends of the two slurry suction pipes 13 extend out of the front side of the limiting slot 6 by 5 cm to contact and absorb the sludge accumulated on the front side of the scraper 7.

[0046] Reference Figure 1-2 In this embodiment, the two weight sensors 15 are located at the rear side of the scraper blade 7, the front end of the slurry suction pipe 13 is set as a bell mouth 14, an inlet is opened on one side of the sludge suction pump 12, and an outlet is opened on the other side, the rear ends of the two slurry suction pipes 13 are fixedly connected to the inlet, and the other end of the slurry discharge pipe 17 is fixedly connected to the outlet. When the device moves forward, the sludge pushed and scraped by the front side of the scraper blade 7 will gradually thicken. When the thickened height exceeds the height of the slurry suction pipe 13, the device continues to move forward, and the raised sludge will be stuffed into the front end of the slurry suction pipe 13 through the bell mouth 14. As the sludge is continuously stuffed into the slurry suction pipe 13, the weight sensor 15 below the front end of the slurry suction pipe 13 will sense the increase in the weight of the slurry suction pipe 13. When it reaches a certain amount, the weight sensor 15 transmits a signal to the controller, and the controller controls the sludge suction pump 12 to start, and the sludge suction pump 12 is turned on to perform sludge suction operation. Then the sludge enters the inlet of the sludge suction pump 12 through the two slurry suction pipes 13, and enters the slurry discharge pipe 17 through the outlet of the slurry suction pipe 13, and finally enters the storage bucket 18 through one end of the slurry discharge pipe 17 for sludge collection.

[0047] Reference Figure 2-3 , the lower ends of the long push-pull rod 3 and the short push-pull rod 4 of this embodiment are respectively rotatably matched with the front and rear ends of the opposite sides of the square bottom frame 101, and the long push-pull rod 3 is located above the short push-pull rod 4. Bolt holes are provided in the middle of the block 5 and the upper end of the short push-pull rod 4, and bolts are matched with the inner threads of the two corresponding bolt holes. When it is necessary to adjust the lifting height of the long push-pull rod 3, first rotate the short push-pull rod 4 so that the angle between the short push-pull rod 4 and the square bottom frame 101 changes. When the angle is larger, the inclination of the short push-pull rod 4 is larger, and the lifting height of the long push-pull rod 3 is lower. When the angle is smaller, the inclination of the short push-pull rod 4 is smaller, and the lifting height of the long push-pull rod 3 is higher. Then, when the height adjustment of the short push-pull rod 4 and the long push-pull rod 3 is completed, screws are installed in the two bolt holes in the middle of one of the blocks 5 and the upper end of the short push-pull rod 4, so as to complete the position fixing of the short push-pull rod 4 and the long push-pull rod 3.

[0048] Reference Figure 2-3 In this embodiment, two pin holes are provided on the upper part of the scraper blade 7 and the middle part of the upper limiting notch 6, and the steel pin 8 is located in the two pin holes opposite to each other. When the scraper blade 7 contacts the ground under the effect of its own weight, the two pin holes on the upper part of the scraper blade 7 correspond to the two pin holes in the middle part of the upper limiting notch 6 one by one, and then the two steel pins 8 are respectively installed in the two pin holes opposite to each other, thereby completing the position limitation of the scraper blade 7, so that the scraper blade 7 can scrape mud and dredge the ground more stably.

[0049] The above-mentioned embodiments may be combined with each other.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A simple dredging device suitable for narrow spaces, comprising: A chassis frame (1) and a storage bucket (18), characterized in that walking rollers (2) are installed at four diagonal positions on the lower side of the chassis frame (1), and the front and rear ends of the opposite sides of the chassis frame (1) are rotatably matched with a long push-pull rod (3) and a short push-pull rod (4), and a plurality of blocks (5) are fixed on the lower side of the long push-pull rod (3), and the upper end of the short push-pull rod (4) corresponds to the plurality of blocks (5); The front end of the chassis frame (1) is fixed with two upper and lower limit slots (6), and a scraper (7) is slidably fitted in the two limit slots (6). Two steel pins (8) are installed between the upper part of the scraper (7) and the upper limit slots (6). A lifting frame (9) is fixed above the front end of the chassis frame (1), and a screw adjustment assembly is installed between the lifting frame (9) and the upper part of the scraper (7). A slurry suction mechanism is installed on the chassis frame (1), one end of the slurry suction mechanism corresponds to the storage barrel (18), and the other end of the slurry suction mechanism is located on the opposite sides of the scraper (7).

2. A simple dredging device suitable for narrow spaces according to claim 1, characterized in that: The chassis frame (1) comprises a square bottom frame (101), a straight frame (102) and an oblique frame (103) fixed to the front and rear ends of the upper side of the square bottom frame (101), the straight frame (102) and the oblique frame (103) are fixed at adjacent ends, and the two limiting notches (6) are respectively fixed to the upper end and the lower end of the front side of the straight frame (102).

3. A simple dredging device suitable for narrow spaces according to claim 2, characterized in that: The lifting frame (9) is a U-shaped frame structure, and the two ends of the U-shaped frame structure are fixed to the two ends above the straight frame (102).

4. A simple dredging device suitable for narrow spaces according to claim 3, characterized in that: The screw rod adjustment assembly comprises a screw rod (10) slidably fitted in the middle part above the lifting frame (9), and a movable nut (11) threadedly fitted on the circumference of the screw rod (10); the lower end of the screw rod (10) is fixed to the middle part above the scraper blade (7), and the movable nut (11) is located above the lifting frame (9).

5. The simple dredging device suitable for narrow spaces according to claim 3, characterized in that: The slurry suction mechanism comprises two support brackets (16) respectively fixed to opposite sides of the front end of the square bottom frame (101), a movable bolt threadedly engaged with the upper front end of the support bracket (16), a sludge suction pump (12) fixed inside the square bottom frame (101), two slurry suction pipes (13) fixed to one side of the sludge suction pump (12), a slurry discharge pipe (17) fixed to the other side of the sludge suction pump (12), and two weight sensors (15) respectively installed on the lower sides of the front ends of the two slurry suction pipes (13), and the weight sensors (15) are electrically connected to the sludge suction pump (12).

6. A simple dredging device suitable for narrow spaces according to claim 5, characterized in that: The movable bolt is clamped with the front end of the slurry suction pipe (13), one end of the slurry discharge pipe (17) corresponds to the storage bucket (18), the two slurry suction pipes (13) are respectively located above the two supporting frames (16), and the front ends of the two slurry suction pipes (13) are located on opposite sides of the scraper (7), and the front end of the slurry suction pipe (13) extends out of the front side of the limiting groove (6), and the extension length is 5 cm.

7. A simple dredging device suitable for narrow spaces according to claim 6, characterized in that: The two weight sensors (15) are located on the rear side of the scraper blade (7), the front end of the slurry suction pipe (13) is set as a bell mouth (14), one side of the sludge suction pump (12) is provided with an inlet and the other side is provided with an outlet, the rear ends of the two slurry suction pipes (13) are fixedly connected to the inlet, and the other end of the slurry discharge pipe (17) is fixedly connected to the outlet.

8. The simple dredging device suitable for narrow spaces according to claim 2, characterized in that: The lower ends of the long push-pull rod (3) and the short push-pull rod (4) are respectively rotatably matched with the front and rear ends of the opposite sides of the square bottom frame (101), and the long push-pull rod (3) is located above the short push-pull rod (4).

9. The simple dredging device suitable for narrow spaces according to claim 1, characterized in that: Bolt holes are provided in the middle of the clamping block (5) and the upper end of the short push-pull rod (4), and bolts are fitted into the inner threads of two corresponding bolt holes.

10. The simple dredging device suitable for narrow spaces according to claim 1, characterized in that: Two pin holes are provided on the upper part of the scraper blade (7) and in the middle part of the upper limiting notch (6), and the steel pin (8) is located in the two pin holes facing each other.

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