A municipal road drainage ditch dredging device

Abstract

The application relates to the technical field of road engineering anti-blocking, in particular to a municipal road drainage ditch desilting device. When a first guide rod cooperates with a limiting guide groove, a horizontal driving mechanism drives two scraping frames to move close to or away from each other, meanwhile, a driving pin cooperates with a first driving groove, so that the scraping frames can be turned downward, upward and horizontally moved; when a lifting mechanism cooperates with the first guide rod, the first guide rod and a second guide rod cooperate with a second driving groove, and the two scraping frames can be moved up and down and turned; the desilting device can enrich the sludge from the two sides to the center in the drainage ditch, thereby increasing the sludge amount of single cleaning, reducing the dumping times, improving the desilting effect and efficiency, effectively reducing the strength and difficulty of manual cleaning operation, and being suitable for small, narrow and shallow drainage ditch environment, and solving the problem that large machinery cannot enter and can only rely on manual operation cleaning.

Description

Technical Field

[0001] This invention relates to the field of road engineering anti-blockage technology, and more specifically to a dredging device for municipal road drainage ditches. Background Technology

[0002] Currently, dredging of municipal road drainage ditches relies heavily on manual cleaning and heavy machinery operations. In drainage ditches with ample operating space, heavy machinery can be used for rapid cleaning. However, for small, narrow, and shallow drainage ditches in urban areas, the limited operating space makes heavy machinery unsuitable, forcing manual operation of dredging tools. This results in low efficiency, high labor intensity, and significant safety hazards in narrow, dark drainage ditches. Furthermore, existing dredging tools often struggle to effectively collect silt during routine cleaning when there is little silt buildup, resulting in small volumes that require frequent emptying, further impacting dredging efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a dredging device for municipal road drainage ditches.

[0004] To achieve the above objectives, the specific solution of the present invention is as follows: A dredging device for municipal road drainage ditches includes a frame; guide plates and a horizontal drive mechanism are provided on the two inner sides of the bottom of the frame; both ends of the horizontal drive mechanism are provided with sliders that are slidably connected to the inner sidewalls of the frame; a first drive groove is provided on the sidewall of the guide plate facing away from the slider; a limiting guide groove is provided on the sidewall of the slider facing the guide plate; the upper end of the limiting guide groove passes through the slider; a second drive groove is symmetrically provided on both inner sidewalls of the frame; the lower end of the second drive groove passes through the frame.

[0005] The frame also has two oppositely arranged scraping frames; the top of the scraping frame is provided with a first guide rod at both ends coupled to the corresponding limiting guide groove and the second drive groove respectively, and a second guide rod at both ends coupled to the corresponding second drive groove respectively; the two outer side walls of the scraping frame are elastically provided with drive pins for coupling with the corresponding first drive groove; the frame is also provided with a lifting mechanism coupled to the two scraping frames.

[0006] When the first guide rod engages with the limiting guide groove, the horizontal drive mechanism drives the two scraping frames to move closer or further apart from each other. At the same time, the drive pin engages with the first drive groove, enabling the scraping frames to flip downwards, flip upwards, and move horizontally. When the lifting mechanism engages with the first guide rod, the first guide rod and the second guide rod engage with the second drive groove, enabling the two scraping frames to move up and down and flip.

[0007] Furthermore, the first driving groove includes a first vertical groove, a first horizontal groove, an inclined groove, a first arc-shaped groove, and a second horizontal groove; the upper end of the first vertical groove penetrates the top surface of the guide plate, and the lower end is connected to one end of the first horizontal groove; the other end of the first horizontal groove is connected to the lower end of the inclined groove; the upper end of the inclined groove penetrates the top surface of the guide plate; the upper end of the first arc-shaped groove penetrates the guide plate, and the lower end is connected to the end of the second horizontal groove away from the inclined groove; the distance between the upper end of the first arc-shaped groove and the center of the frame is less than the distance between the lower end of the first arc-shaped groove and the center of the frame; the second horizontal groove and the first horizontal groove are located on the same straight line; the end of the second horizontal groove near the inclined groove is connected to the lower end of the inclined groove and the other end of the first horizontal groove, and its depth is greater than the depth of the inclined groove and the first horizontal groove.

[0008] Furthermore, the second driving groove includes a second vertical groove and a second arc-shaped groove; the lower end of the second vertical groove penetrates the bottom surface of the frame, and the upper end is connected to the lower end of the second arc-shaped groove; the distance between the upper end of the second arc-shaped groove and the center of the frame is less than the distance between the lower end of the second arc-shaped groove and the center of the frame.

[0009] Furthermore, the lifting mechanism of the present invention includes two lifting components arranged opposite to each other; each lifting component includes a lifting drive component, a transmission component, and a lifting rod; the lifting drive component is located at the top of the frame; the upper end of the transmission component is connected to the output end of the lifting drive component; the middle part of the lifting rod is movably sleeved on the outer wall of the transmission component; both ends of the lifting rod are provided with coupling notches.

[0010] Furthermore, the coupling notch is U-shaped; the coupling notch is deepened along the length of the lifting rod from its opening position.

[0011] Furthermore, the limiting guide groove is located on the side of the slider away from the center of the frame; the slider is provided with a chamfered structure at the corner position corresponding to the upper end of the limiting guide groove.

[0012] Furthermore, a vertical rod is provided between the first guide rod and the second guide rod; one end of the vertical rod is connected to the middle of the first guide rod, and the other end is connected to the middle of the second guide rod.

[0013] Furthermore, the present invention provides a flexible scraping strip at the opening position at the bottom of the scraping frame.

[0014] Furthermore, the horizontal drive mechanism of the present invention includes two telescopic components; each telescopic component includes a telescopic drive element and a scissor link assembly; the telescopic drive element is disposed on the side wall of the frame; the center of the scissor link assembly is connected to the output end of the telescopic drive element; guide blocks are connected to both ends of the scissor link assembly; the guide blocks are slidably connected to the side of the corresponding slider near the center of the frame.

[0015] Furthermore, the invention includes a movable component on the outer side wall at the bottom of the frame to allow the entire dredging device to move.

[0016] The beneficial effects of this invention are as follows: This invention drives two scraper frames to move through a horizontal drive mechanism, which can enrich the silt from both sides to the center in the drainage ditch, thereby increasing the amount of silt cleaned in a single operation, reducing the number of dumping operations, and improving the dredging effect and efficiency; and through the horizontal drive mechanism and the lifting mechanism, the drainage ditch is automatically enriched and cleaned under the corresponding coupling of the first guide rod, the second guide rod, the drive pin, the first drive groove, the second drive groove, and the limiting guide groove, thereby effectively reducing the intensity and difficulty of manual cleaning operations, adapting to small, narrow and shallow drainage ditch environments, and solving the problem that large machinery cannot enter and can only be cleaned manually. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the dredging device of the present invention when it is placed on top of the drainage ditch;

[0018] Figure 2 This is a cross-sectional schematic diagram of the dredging device of the present invention when the scraper frame is in the retracted state;

[0019] Figure 3 This is a cross-sectional schematic diagram of the dredging device of the present invention when the scraper frame is in working condition;

[0020] Figure 4 yes Figure 3 Enlarged diagram of section A in the middle;

[0021] Figure 5 This is a cross-sectional schematic diagram of the dredging device of the present invention after the scraper frame has concentrated the silt towards the center;

[0022] Figure 6 yes Figure 5 Enlarged diagram of section B;

[0023] Figure 7 This is a cross-sectional schematic diagram of the dredging device of the present invention when the scraper frame is tilted and overturned to discharge the sludge;

[0024] Figure 8 This is a cross-sectional schematic diagram of the framework of the present invention;

[0025] Figure 9 This is a schematic diagram of the scraper frame structure of the present invention;

[0026] Figure 10 This is a schematic diagram of the structure of the telescopic component of the present invention;

[0027] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Guide plate; 121. First vertical groove; 122. First horizontal groove; 123. Inclined groove; 124. First arc-shaped groove; 125. Second horizontal groove; 131. Second vertical groove; 132. Second arc-shaped groove; 14. Guide rod; 21. Telescopic assembly; 211. Telescopic drive component; 212. Scissor linkage assembly; 213. Slider; 2131. Limiting guide groove; 214. Guide block; 3. Scraper frame; 31. First guide rod; 32. Second guide rod; 33. Drive pin; 34. Vertical rod; 35. Flexible scraper; 41. Lifting assembly; 411. Lifting drive component; 412. Transmission component; 413. Lifting rod; 4131. Coupling notch; 51. Roller. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the invention to this.

[0029] like Figures 1 to 10 As shown in the figure, a dredging device for municipal road drainage ditches according to this embodiment includes a frame 1; the frame 1 includes a bottom frame and an inverted U-shaped frame connected to the top of the bottom frame; the bottom frame has a rectangular opening to provide movement space for the scraper frame 3; guide plates 11 are extended from the four corners of the inner side of the bottom frame of the frame 1, the four guide plates 11 are rectangularly distributed and spaced apart from the inner sidewall of the bottom frame; the two inner sidewalls of the bottom frame of the frame 1 are provided with a horizontal drive mechanism for driving the scraper frame 3 to move horizontally; two opposite scraper frames 3 are also movably arranged inside the frame 1, and the two scraper frames 3 can move towards each other under the drive of the horizontal drive mechanism, thereby causing the silt in the drainage ditch to accumulate towards the center; the two outer sidewalls of the scraper frame 3 are elastically movably provided with drive pins 33 for coupling with the corresponding first drive groove; the frame 1 is also provided with a lifting mechanism coupled to the two scraper frames 3, which drives the two scraper frames 3 to move upward, thereby removing the silt accumulated in the two scraper frames 3 from the drainage ditch, thus achieving silt removal. The outer side wall at the bottom of frame 1 is equipped with a movable component so that the entire dredging device can move along the length of the drainage ditch.

[0030] Furthermore, both ends of the horizontal drive mechanism are provided with sliders 213 that are slidably connected to the inner sidewall of the frame 1; the sidewall of the guide plate 11 facing away from the sliders 213 is provided with a first drive groove; the sidewall of the sliders 213 facing the guide plate 11 is provided with a limiting guide groove 2131; the upper end of the limiting guide groove 2131 is provided through the sliders 213 so that the first guide rod 31 can be inserted into and removed from the limiting guide groove 2131; the two inner sidewalls of the frame 1 are symmetrically provided with second drive grooves; the lower end of the second drive groove is provided through the frame 1 so that the first guide rod 31 and the second guide rod 32 can be inserted into and removed from the second drive groove; the top of the scraper frame 3 is provided with a first guide rod 31 whose two ends are respectively coupled to the corresponding limiting guide groove 2131 and the second drive groove, and a second guide rod 32 whose two ends are respectively coupled to the corresponding second drive groove; when the first guide rod 31 cooperates with the limiting guide groove 2131, the limiting guide groove 2131 limits the first guide rod 31 so that the scraper frame 3 can be flipped with the first guide rod 31 as the flipping fulcrum.

[0031] When the first guide rod 31 engages with the limiting guide groove 2131, the horizontal drive mechanism drives the two scraper frames 3 to move closer or further apart. At the same time, the drive pin 33 engages with the first drive groove, enabling the scraper frames 3 to flip downwards, flip upwards, and move horizontally. Specifically, when the two scraper frames 3 move away from each other from the center, the scraper frames 3, under the engagement of the drive pin 33 and the first drive groove, flip upwards by ninety degrees around the first guide rod 31 to the storage state, that is, the opening of the scraper frames 3 faces upwards. As the scraper frames 3 move, the drive pin 33 engages with the first drive groove, causing the scraper frames 3 to flip downwards by ninety degrees around the first guide rod 31 to the working state, that is, the openings of the two scraper frames 3 face each other. When the two scraper frames 3 move closer to each other towards the center of the frame 1, the two scraper frames 3 approach each other in the working state with their openings facing each other, thereby enriching the silt in the drainage ditch.

[0032] When the lifting mechanism cooperates with the first guide rod 31, the first guide rod 31 and the second guide rod 32 cooperate with the second drive groove, allowing the two scraping frames 3 to move up and down and flip. Specifically, when the two scraping frames 3 move towards the center, the first guide rod 31 cooperates with the lifting mechanism. At this time, the first guide rod 31 and the second guide rod 32 are located on the same vertical plane, and the second guide rod 32 is positioned opposite the second drive groove. Then, the lifting mechanism drives the two scraping frames 3 to move upward synchronously. The second guide rod 32 enters the second drive groove, and the first guide rod 31 first moves out of the limiting guide groove 2131 and then enters the second drive groove. Until the second guide rod 32 cooperates with the second drive groove, the scraping frame 3 flips around the first guide rod 31, causing the sludge inside the scraping frame 3 to be poured out.

[0033] Specifically, such as Figure 4 and Figure 8As shown, in this embodiment of the dredging device, the first driving groove includes a first vertical groove 121, a first horizontal groove 122, an inclined groove 123, a first arc-shaped groove 124, and a second horizontal groove 125; the upper end of the first vertical groove 121 penetrates the top surface of the guide plate 11, and the lower end is connected to one end of the first horizontal groove 122; the other end of the first horizontal groove 122 is connected to the lower end of the inclined groove 123; the upper end of the inclined groove 123 penetrates the top surface of the guide plate 11; the upper end of the first arc-shaped groove 124 penetrates the top surface of the guide plate 11. 1. The lower end of the first horizontal groove 124 is connected to the end of the second horizontal groove 125 away from the inclined groove 123. The distance between the upper end of the first arc-shaped groove 124 and the center of the frame 1 is less than the distance between the lower end of the first arc-shaped groove 124 and the center of the frame 1. The second horizontal groove 125 and the first horizontal groove 122 are on the same straight line. The end of the second horizontal groove 125 near the inclined groove 123 is connected to the lower end of the inclined groove 123 and the other end of the first horizontal groove 122, and its depth is greater than the depth of the inclined groove 123 and the first horizontal groove 122. Preferably, the depth of the end of the second horizontal groove 125 away from the inclined groove 123 is greater than the depth of the lower end of the first arc-shaped groove 124 to prevent the drive pin 33 from entering the first arc-shaped groove 124 from the second horizontal groove 125. Since there is a height difference between the two ends of the second horizontal groove 125, a transition slope is provided in the second horizontal groove 125 so that the drive pin 33 can move smoothly in the second horizontal groove 125. Similarly, since there is a height difference between the upper and lower ends of the first arc-shaped groove 124, a transition slope is provided within the first arc-shaped groove 124 to allow the drive pin 33 to move smoothly within the first arc-shaped groove 124. Figure 2 , Figure 3 , Figure 5 as well as Figure 8 As shown, the second driving groove includes a second vertical groove 131 and a second arc-shaped groove 132; the lower end of the second vertical groove 131 penetrates the bottom surface of the frame 1, and the upper end is connected to the lower end of the second arc-shaped groove 132; the distance between the upper end of the second arc-shaped groove 132 and the center of the frame 1 is less than the distance between the lower end of the second arc-shaped groove 132 and the center of the frame 1.

[0034] Specifically, in actual use, the dredging device of this embodiment is placed on top of the drainage ditch. Initially, the first guide rod 31 is inserted into the limiting guide groove 2131 and is not engaged with the lifting mechanism. The two scraper frames 3 are in an upward-flipped storage state after the corresponding drive pins 33 engage with the inclined grooves 123. Figure 2As shown, this facilitates the storage and movement of the dredging device. At this time, the drive pin 33 is located on the top surface of the guide plate 11. When it is necessary to enrich the silt in the drainage ditch, the horizontal drive mechanism drives the two scraper frames 3 to move away from each other via the slider 213. At this time, the drive pin 33 moves along the top surface of the guide plate 11 until it aligns with the position of the first arc-shaped groove 124. Then, under the weight of the scraper frame 3, the drive pin 33 automatically enters the first arc-shaped groove 124. As the scraper frame 3 moves further, the drive pin 33 engages with the first arc-shaped groove 124, causing the scraper frame 3 to gradually flip downwards until the drive pin 33 enters the second horizontal groove 125 from the first arc-shaped groove 124. At this time, the scraper frame 3 is in working condition. Figure 3 As shown, the area between the two scraper frames 3 is the area to be cleaned; then the horizontal drive mechanism drives the two scraper frames 3 to move closer to each other towards the center via the slider 213. At this time, the drive pin 33 moves along the second horizontal groove 125, that is, the two scraper frames 3 move horizontally in the drainage ditch, thereby enriching the sludge in the area to be cleaned towards the center. The drive pin 33 transitions from the second horizontal groove 125 to the first horizontal groove 122 until the position of the drive pin 33 corresponds to the position of the first vertical groove 121, at which point the two scraper frames 3 abut against each other, as shown. Figure 5 As shown, the enriched sludge is concentrated between the two scraper frames 3, thus increasing the amount of sludge cleaned in a single operation, reducing the number of dumping operations, and improving the sludge removal effect and efficiency; at this time, the first guide rod 31 cooperates with the lifting mechanism, and the second guide rod 32 is directly below the opening of the second vertical groove 131;

[0035] Next, the lifting mechanism drives the two scraper frames 3 to move upward synchronously via the first guide rod 31. The second guide rod 32 enters the second vertical groove 131. The first guide rod 31 moves out of the limiting guide groove 2131 and into the second vertical groove 131. The drive pin 33 moves out of the first vertical groove 121, meaning that the drive pin 33 disengages from the first drive groove. Thus, the two scraper frames 3 carry the enriched sludge upward out of the drainage ditch. Then, the sludge collection trough is placed in the opening of the bottom frame and directly below the two scraper frames 3. The lifting mechanism then continues to drive the two scraper frames 3 upward until the second guide rod 32 enters the second arc-shaped groove 132. At this point, with the cooperation of the second guide rod 32 and the second arc-shaped groove 132, the scraper frame 3 rotates around the first guide rod 31. Figure 7 As shown, this allows the cleaned sludge to fall into the sludge collection trough below, thus achieving sludge cleaning. After the sludge is poured out of the scraper frame 3, the sludge collection trough is removed from the bottom frame.

[0036] Then the lifting mechanism drives the two scraper frames 3 to move downwards and reset until the first guide rod 31 moves out of the second vertical groove 131 and enters the limiting guide groove 2131, and the second guide rod 32 moves out of the second vertical groove 131. That is, the first guide rod 31 and the second guide rod 32 are disengaged from the second drive groove. At the same time, the drive pin 33 enters the first vertical groove 121 and enters the first horizontal groove 122. At this time, the horizontal drive mechanism drives the two scraper frames 3 to move away from each other. The drive pin 33 moves along the first horizontal groove 122 and enters the inclined groove 123. At this time, the scraper frame 3 gradually flips upwards around the first guide rod 31 under the cooperation of the drive pin 33 and the inclined groove 123 until the drive pin 33 moves out of the inclined groove 123 and is located on the top surface of the guide plate 11. At this time, the first guide rod 31 and the second guide rod 32 are on the same horizontal plane, thus completing the reset of the scraper frame 3.

[0037] Once the silt in the designated area has been cleared, move the entire dredging device to the next area and repeat the process. This reduces the intensity and difficulty of manual operation.

[0038] This embodiment uses a horizontal drive mechanism to move two scraper frames 3, which can enrich the silt from both sides to the center in the drainage ditch, thereby increasing the amount of silt cleaned in a single operation, reducing the number of dumping operations, and improving the dredging effect and efficiency. Furthermore, driven by the horizontal drive mechanism and the lifting mechanism, the drainage ditch is automatically enriched and cleaned under the corresponding coupling of the first guide rod 31, the second guide rod 32, the drive pin 33, the first drive groove, the second drive groove, and the limiting guide groove 2131. This effectively reduces the intensity and difficulty of manual cleaning operations, is suitable for small, narrow, and shallow drainage ditch environments, and solves the problem that large machinery cannot enter and cleaning can only be done manually.

[0039] like Figures 1 to 7As shown, in this embodiment of the dredging device, the lifting mechanism includes two opposing lifting components 41. Each lifting component 41 includes a lifting drive 411, a transmission component 412, and a lifting rod 413. The lifting drive 411 is located at the top of the frame 1. The upper end of the transmission component 412 is connected to the output end of the lifting drive 411. The middle part of the lifting rod 413 is movably sleeved on the outer wall of the transmission component 412. Both ends of the lifting rod 413 are provided with coupling notches 4131. Preferably, the coupling notches 4131 are U-shaped. The coupling notches 4131 deepen along the length of the lifting rod 413 from their opening position. Specifically, the lifting drive 411 is a motor, the transmission component 412 is a screw, and the lifting rod 413 is threadedly connected to the screw. In use, the motor drives the screw to rotate, and the screw drives the lifting rod 413 to move up and down along the axial direction of the screw, thereby driving the two scraper frames 3 to move synchronously. By providing a U-shaped coupling notch 4131 at the end of the lifting rod 413, it is easy for the first guide rod 31 to engage and disengage from the coupling notch 4131.

[0040] like Figure 2 , Figure 3 , Figure 5 , Figure 7 as well as Figure 8 As shown, in order to improve the stability of the lifting rod 413, the U-shaped frame is provided with two guide rods 14 at intervals for each lifting rod 413, and the two ends of the lifting rod 413 are respectively sleeved on the outer wall of the corresponding guide rod 14.

[0041] like Figures 5 to 7 ,as well as Figure 10 As shown, in this embodiment of the dredging device, the limiting guide groove 2131 is located on the side of the slider 213 away from the center of the frame 1; the slider 213 is provided with a chamfered structure at the corner position corresponding to the upper end of the limiting guide groove 2131. This embodiment, through the above-mentioned arrangement, avoids interference between the second guide rod 32 and the slider 213, resulting in smoother structural operation.

[0042] like Figure 9 As shown in the diagram, in this embodiment of the dredging device, a vertical rod 34 is provided between the first guide rod 31 and the second guide rod 32; one end of the vertical rod 34 is connected to the middle of the first guide rod 31, and the other end is connected to the middle of the second guide rod 32. This embodiment achieves a fixed connection between the first guide rod 31 and the second guide rod 32 through the above arrangement.

[0043] like Figures 2 to 5 ,as well as Figure 9As shown in the figure, the dredging device of this embodiment has a flexible scraper 35 at the opening at the bottom of the scraper frame 3. By setting the flexible scraper 35, when encountering fixed foreign objects during the cleaning process, the scraper frame 3 has the ability to pass over the foreign objects, thus not affecting the operation of the device and making the structure more flexible; it can also accumulate the silt in the drainage ditch when there is not too much silt in daily cleaning, and clean as much silt as possible in a single time, resulting in better dredging effect.

[0044] like Figures 5 to 7 ,as well as Figure 10 As shown, in this embodiment of the dredging device, the horizontal drive mechanism includes two telescopic components 21; each telescopic component 21 includes a telescopic drive member 211 and a scissor link assembly 212; the telescopic drive member 211 is located on the side wall of the frame 1; the center of the scissor link assembly 212 is connected to the output end of the telescopic drive member 211; guide blocks 214 are connected to both ends of the scissor link assembly 212; the guide blocks 214 are slidably connected to the side of the corresponding slider 213 near the center of the frame 1. Specifically, the telescopic drive member 211 is a motor, and guide blocks 214 are connected to the two endpoints of each end of the scissor link assembly 212. A third vertical groove is provided on the side of the slider 213 near the center of the frame 1, and the guide blocks 214 are slidably connected in the third vertical groove. Thus, when the motor drives the scissor link assembly 212 to retract, the guide blocks 214 adaptively move up and down in the third vertical groove, thereby realizing that the horizontal drive mechanism drives the slider 213 to move horizontally, causing the two scraping frames 3 to move away from and towards each other.

[0045] It should be noted that the scissor link assembly 212 is a double scissor link structure. The center of one link unit located at the center of the scissor link assembly 212 is connected to the motor output end, and the center of the other link unit is rotatably connected to the motor output end. Alternatively, a double thread structure can be set on the output shaft of the motor so that when the motor is working, the two link units at the center of the scissor link assembly 212 rotate in opposite directions around the output shaft.

[0046] like Figure 1 As shown, the dredging device of this embodiment includes four rollers 51 as the moving component; the four rollers 51 are evenly distributed on the outer side wall of the bottom frame, which facilitates the movement of the dredging device and makes it more convenient to use.

[0047] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included within the protection scope of this patent application.

Claims

1. A device for dredging a municipal road drainage ditch, characterized in that, The frame comprises two inner sides of the frame bottom, which are provided with guide plates and horizontal driving mechanisms; the two ends of the horizontal driving mechanisms are provided with sliding blocks which are slidingly connected with the inner side walls of the frame; the side wall of the guide plate which is away from the sliding block is provided with a first driving groove; the side wall of the sliding block which faces the guide plate is provided with a limiting guide groove; the upper end of the limiting guide groove penetrates through the sliding block; the two inner side walls of the frame are symmetrically provided with second driving grooves; the lower end of the second driving groove penetrates through the frame; The frame is further movably provided with two oppositely arranged scraping frames; the top of the scraping frame is provided with a first guide rod which is coupled with the corresponding limiting guide groove and second driving groove at both ends, and a second guide rod which is coupled with the corresponding second driving groove at both ends; the two outer side walls of the scraping frame are elastically movably provided with driving pins which are coupled with the corresponding first driving grooves; the frame is further provided with a lifting mechanism which is coupled with the two scraping frames; When the first guide rod cooperates with the limiting guide groove, the horizontal driving mechanism drives the two scraping frames to move towards or away from each other, and at the same time, the driving pin cooperates with the first driving groove, so that the scraping frame can be turned down, turned up and horizontally moved; when the lifting mechanism cooperates with the first guide rod, the first guide rod and the second guide rod cooperate with the second driving groove, and the two scraping frames can be moved up and down and turned over; The first driving groove comprises a first vertical groove, a first horizontal groove, an inclined groove, a first arc-shaped groove and a second horizontal groove; the upper end of the first vertical groove penetrates through the top surface of the guide plate and is connected with one end of the first horizontal groove at the lower end; the other end of the first horizontal groove is connected with the lower end of the inclined groove; the upper end of the inclined groove penetrates through the top surface of the guide plate; the upper end of the first arc-shaped groove penetrates through the guide plate and is connected with one end of the second horizontal groove which is away from the inclined groove at the lower end; the distance between the upper end of the first arc-shaped groove and the center of the frame is less than the distance between the lower end of the first arc-shaped groove and the center of the frame; the second horizontal groove is located on the same straight line as the first horizontal groove; the end of the second horizontal groove which is close to the inclined groove is connected with the lower end of the inclined groove and the other end of the first horizontal groove, and the depth is greater than that of the inclined groove and the first horizontal groove; The second driving groove comprises a second vertical groove and a second arc-shaped groove; the lower end of the second vertical groove penetrates through the bottom surface of the frame and is connected with the lower end of the second arc-shaped groove at the upper end; the distance between the upper end of the second arc-shaped groove and the center of the frame is less than the distance between the lower end of the second arc-shaped groove and the center of the frame.

2. The device for dredging a municipal road drainage channel according to claim 1, characterized in that, The lifting mechanism comprises two oppositely arranged lifting assemblies; each lifting assembly comprises a lifting driving member, a transmission member and a lifting rod; the lifting driving member is arranged on the top of the frame; the upper end of the transmission member is connected with the output end of the lifting driving member; the middle part of the lifting rod is movably sleeved on the outer wall of the transmission member; the two ends of the lifting rod are provided with coupling notches.

3. The device for dredging a municipal road drainage channel according to claim 2, characterized in that, The coupling notches are U-shaped; the coupling notches are deeper from their opening positions along the length direction of the lifting rod.

4. The device for dredging of municipal road drainage ditches according to claim 1, characterized in that, The limiting guide groove is located on the side of the sliding block which is away from the center of the frame; the corner position of the upper end of the limiting guide groove is provided with a chamfer structure.

5. The device for dredging of municipal road drainage ditches according to claim 1, characterized in that, A vertical rod is arranged between the first guide rod and the second guide rod; one end of the vertical rod is connected with the middle part of the first guide rod, and the other end is connected with the middle part of the second guide rod.

6. The device for dredging of municipal road drainage ditches according to claim 1, characterized in that, The opening position of the bottom of the scraping frame is provided with a flexible scraping strip.

7. The device for dredging of municipal road drainage ditches according to claim 1, characterized in that, The horizontal driving mechanism comprises two telescopic assemblies; each telescopic assembly comprises a telescopic driving member and a scissor linkage; the telescopic driving member is arranged on the side wall of the frame; the center of the scissor linkage is connected with the output end of the telescopic driving member; the both ends of the scissor linkage are connected with guide blocks; the guide blocks are slidingly connected with corresponding sliding blocks on the side close to the center of the frame.

8. The device for dredging of municipal road drainage ditches according to claim 1, characterized in that, The outer side wall of the bottom of the frame is provided with a moving assembly, so that the whole dredging device can move.

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