Pipeline dredging device
By designing a pipe cleaning device with a reciprocating scraping mechanism and a combined scraper plate, uniform cleaning of sludge on the inner wall of the pipe and convenient replacement of scraper plates are achieved, solving the problems of incomplete cleaning and high maintenance costs in the existing technology, and improving the efficiency and economy of dredging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHUNLIN CONSTRUCTION ENGINEERING CONSULTING CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-05
AI Technical Summary
Existing pipeline dredging equipment cannot guarantee the uniformity of sludge removal during the cleaning process, resulting in incomplete cleaning. Furthermore, the scraper blades need to be replaced entirely after wear, increasing maintenance costs.
A pipeline dredging device including a reciprocating scraping mechanism and a combined scraping plate was designed. The device drives the mounting rod to reciprocate left and right through the drive component, thereby realizing the synchronous reciprocating motion of multiple scraping plates to scrape away sludge. The device also allows for easy replacement of worn scraping plates through the locking component.
It improves pipeline dredging efficiency, avoids incomplete cleaning, reduces maintenance costs, and enhances the practicality and economy of the equipment.
Smart Images

Figure CN224200018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline cleaning technology, specifically to a pipeline dredging device. Background Technology
[0002] Over time, a certain amount of silt can accumulate on the inner wall of the drain pipe, affecting its drainage performance and requiring timely cleaning.
[0003] Chinese patent CN218692271U discloses a pipe dredging device, including a support; a drill rod rotatably mounted on the support and capable of extending into the pipe to be cleaned; and a dragging structure supported below the pipe and capable of dragging the pipe along the axis of the drill rod. However, this device still has the following problems in use:
[0004] When it is necessary to clean the inner wall of the pipe, the device moves unidirectionally along the pipe axis, and can only scrape the sludge on the inner wall of the pipe in one direction and one time, which cannot guarantee the uniformity of scraping and is quite inconvenient.
[0005] Based on this, the present invention designs a pipeline dredging device to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a pipeline dredging device.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A pipeline dredging device includes a vehicle body and a reciprocating scraping mechanism. The reciprocating scraping mechanism is installed inside the vehicle body for reciprocating material application to the inner wall of the pipeline. The reciprocating scraping mechanism is equipped with a combined scraping mechanism for scraping sludge from the inner wall of the pipeline and facilitating the replacement of worn parts.
[0009] The reciprocating scraping mechanism includes a mounting rod, a movable component for controlling the reciprocating left and right movement of the mounting rod, and a drive component for controlling the movement of the movable component; the drive component is installed inside the vehicle body; the movable component is also installed inside the vehicle body and connected to the drive component; the mounting rod is connected to the drive component; the left end of the mounting rod slides through and extends to the outside of the vehicle body and is connected to the combined scraping mechanism.
[0010] Furthermore, the combined scraping mechanism includes multiple scraper blades, a mounting assembly, and a locking assembly; one side of the mounting assembly is mounted on the end of the mounting rod located on the outside of the vehicle body; and multiple scraper blades are respectively arranged on the other side of the mounting assembly; the locking assembly and the mounting assembly are both connected to the scraper blades.
[0011] Furthermore, the drive assembly includes a drive gear, a driven gear, a reversing assembly, a vertical plate, and a control gear. The vertical plate is fixedly installed inside the vehicle body. The drive gear is rotatably mounted on the upper side of the left front end of the vertical plate. The driven gear is rotatably mounted on the lower side of the left front end of the vertical plate. The control gear is rotatably mounted on the middle front side of the vertical plate. The control gear meshes with both the drive gear and the driven gear. Both the drive gear and the driven gear are connected to the reversing assembly.
[0012] Furthermore, the reversing assembly includes a first incomplete gear and a second incomplete gear, with the front side of the driving gear and the rear side of the first incomplete gear being coaxially and fixedly connected; the front side of the driven gear and the rear side of the second incomplete gear being coaxially and fixedly connected; both the first incomplete gear and the second incomplete gear are connected to the movable assembly.
[0013] Furthermore, the movable component includes a movable plate, a driven rack, a sliding block, and a connecting plate; two connecting plates are fixedly installed at the left and right ends of the front side of the upright plate; each of the two connecting plates is provided with a sliding groove; both ends of the movable plate slide through the inner sides of the two connecting plates respectively, and a sliding block is fixedly installed at the front end of the movable plate; both ends of the sliding block are respectively limited and slidably connected to the two sliding grooves; two driven racks are symmetrically fixedly installed at the upper and lower ends of the movable plate.
[0014] Furthermore, when the first incomplete gear meshes with the upper driven rack, the second incomplete gear disengages from the lower driven rack; when the second incomplete gear meshes with the lower driven rack, the first incomplete gear disengages from the upper driven rack.
[0015] Furthermore, the mounting assembly includes a fixing ring and a dovetail sliding block. The center of the fixing ring is fixedly mounted on the left end of the mounting rod. Multiple scraper plates are provided on the left side of the fixing ring, and multiple dovetail grooves are provided on the outer edge of the left side of the fixing ring. A dovetail sliding block is fixedly mounted on the right side of the scraper plates. The dovetail sliding block is inserted into the dovetail groove for a limited sliding connection. A locking assembly is provided on the scraper plates.
[0016] Furthermore, the locking assembly includes a locking screw, and multiple threaded holes are provided on the left side of the fixing ring and the scraper plate; the right end of the locking screw is threaded into the two threaded holes for internal connection.
[0017] Compared with the prior art, the advantages of this utility model are as follows:
[0018] In this utility model, when it is necessary to clean the sludge on the inner wall of the pipeline, the vehicle body is placed at the pipeline opening and moved. Then the drive component works, which drives the movable component to work. The movable component drives the mounting rod to move back and forth continuously, so that the mounting component installed on the mounting rod drives multiple scraper blades to move back and forth synchronously, scraping off the sludge attached to the inner wall of the pipeline. This avoids the situation where the cleaning is incomplete due to unidirectional scraping, improves the efficiency of pipeline cleaning, and enhances the practicality of the device.
[0019] During the reciprocating scraping process, the vehicle body moves slowly to the left, and the scraped sludge falls to the bottom of the pipe under its own gravity. When the scraping operation is completed, the drive component stops working, and then the vehicle body moves to the right to exit the pipe. The movement of the vehicle body drives the scraper to move to the right, and then the scraper carries the sludge at the bottom of the pipe to the right and out of the pipe.
[0020] Moreover, since the scraper blade is in direct contact with the inner wall of the pipe, it is prone to wear. In this case, it is only necessary to release the worn scraper blade from the mounting component by locking the component; then pull out the worn scraper blade, insert the new scraper blade into the mounting component, and lock the new scraper blade to the mounting component again by locking the component. This avoids the need to replace the entire scraping mechanism when a single scraper blade is worn, reduces the operating cost of the device, reduces the standby time during device maintenance, and further improves the sludge removal efficiency of the device. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a perspective view of a pipeline dredging device according to the present invention;
[0023] Figure 2 This is a front view of a pipeline dredging device according to the present invention;
[0024] Figure 3 This is a perspective view of the front of this utility model with a portion cut off;
[0025] Figure 4 This is a partial 3D view of the combined scraping mechanism;
[0026] Figure 5 This is a partial 3D view of the driving component.
[0027] The labels in the diagram represent:
[0028] 1. Car body; 2. Reciprocating scraping mechanism; 21. Mounting rod; 22. Drive assembly; 222. Drive gear; 223. Driven gear; 224. First incomplete gear; 225. Second incomplete gear; 226. Vertical plate; 227. Control gear; 23. Movable assembly; 231. Movable plate; 232. Driven rack; 233. Sliding block; 234. Connecting plate; 235. Sliding groove; 3. Combined scraping mechanism; 31. Fixing ring; 32. Scraper plate; 33. Dovetail groove; 34. Dovetail sliding block; 35. Locking assembly; 351. Threaded hole; 352. Locking screw. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0031] In some embodiments, please refer to the accompanying drawings. Figures 1-5 A pipeline dredging device includes a vehicle body 1, a reciprocating scraping mechanism 2, and a combined scraping mechanism 3. The reciprocating scraping mechanism 2, used for reciprocating material application on the inner wall of the pipeline, is installed inside the vehicle body 1. The combined scraping mechanism 3, used for scraping sludge from the inner wall of the pipeline and facilitating the replacement of worn parts, is installed on the reciprocating scraping mechanism 2.
[0032] The reciprocating scraping mechanism 2 includes a mounting rod 21, a movable component 23 for controlling the reciprocating left and right movement of the mounting rod 21, and a drive component 22 for controlling the movement of the movable component 23; the drive component 22 is installed inside the vehicle body 1; the movable component 23 is also installed inside the vehicle body 1 and connected to the drive component 22; the mounting rod 21 is connected to the drive component 22, and the left end of the mounting rod 21 slides through and extends to the outside of the vehicle body 1 and is connected to the combined scraping mechanism 3.
[0033] The combined scraping mechanism 3 includes multiple scraper blades 32, a mounting assembly, and a locking assembly 35; one side of the mounting assembly is mounted on the end of the mounting rod 21 located on the outside of the vehicle body 1; and multiple scraper blades 32 are provided on the other side of the mounting assembly; the locking assembly 35 is connected to the mounting assembly and the scraper blades 32.
[0034] In this utility model, when it is necessary to clean the sludge on the inner wall of the pipe, the vehicle body 1 is placed at the pipe opening, and then the drive component 22 works. The work of the drive component 22 drives the movable component 23 to work, and the work of the movable component 23 drives the mounting rod 21 to move back and forth continuously. This causes the mounting component installed on the mounting rod 21 to drive multiple scraper blades 32 to move back and forth synchronously, scraping off the sludge attached to the inner wall of the pipe. This avoids the situation where the cleaning is incomplete due to unidirectional scraping, improves the efficiency of pipe cleaning, and enhances the practicality of the device.
[0035] During the reciprocating scraping process, the vehicle body 1 moves slowly to the left, and the scraped sludge falls to the bottom of the pipe under its own gravity. When the scraping operation is completed, the drive component 22 stops working, and then the vehicle body 1 moves to the right to exit the pipe. The movement of the vehicle body 1 drives the scraper 32 to move to the right, and then the scraper 32 drives the sludge at the bottom of the pipe to move to the right and out of the pipe.
[0036] Moreover, since the scraper 32 is in direct contact with the inner wall of the pipe, it is prone to wear. In this case, it is only necessary to release the worn scraper 32 from the mounting component by locking component 35; then pull out the worn scraper 32, insert the new scraper 32 into the mounting component, and then fix the new scraper 32 to the mounting component by locking component 35 again. This avoids the need to replace the entire scraping mechanism when a single scraper 32 is worn, reduces the operating cost of the device, reduces the standby time during device maintenance, and further improves the sludge removal efficiency of the device.
[0037] like Figures 1-5 As shown, the drive assembly 22 includes a drive gear 222, a driven gear 223, a first incomplete gear 224, a second incomplete gear 225, a vertical plate 226, and a control gear 227. The vertical plate 226 is fixedly installed inside the vehicle body 1. The drive gear 222 is rotatably mounted on the upper side of the front left end of the vertical plate 226. The driven gear 223 is rotatably mounted on the lower side of the front left end of the vertical plate 226. The control gear 227 is rotatably mounted on the middle of the front side of the vertical plate 226. The control gear 227 is simultaneously meshed with both the drive gear 222 and the driven gear 223. The front side of the drive gear 222 is coaxially fixedly connected to the rear side of the first incomplete gear 224. The front side of the driven gear 223 is coaxially fixedly connected to the rear side of the second incomplete gear 225. Both the first incomplete gear 224 and the second incomplete gear 225 are connected to the movable assembly 23.
[0038] The control gear 227 can be driven by a motor, which is mounted on the rear side of the upright plate 226.
[0039] like Figures 1-5As shown, the movable component 23 includes a movable plate 231, a driven rack 232, a sliding block 233, and a connecting plate 234; two connecting plates 234 are fixedly installed on the left and right ends of the front side of the upright plate 226; each of the two connecting plates 234 is provided with a sliding groove 235; both ends of the movable plate 231 slide through the inner sides of the two connecting plates 234 respectively, and a sliding block 233 is fixedly installed at the front end of the movable plate 231; both ends of the sliding block 233 are respectively limited and slidably connected to the two sliding grooves 235; two driven racks 232 are symmetrically fixedly installed at the upper and lower ends of the movable plate 231; the right end of the mounting rod 21 is fixedly connected to the left end of the movable plate 231, and the left end of the mounting rod 21 slides to the outside of the vehicle body 1 and connects with the mounting component.
[0040] Specifically, when the first incomplete gear 224 is engaged with the upper driven rack 232, the second incomplete gear 225 is disengaged from the lower driven rack 232; when the second incomplete gear 225 is engaged with the lower driven rack 232, the first incomplete gear 224 is disengaged from the upper driven rack 232.
[0041] In this utility model, when it is necessary to clean the sludge on the inner wall of the pipe, the vehicle body 1 is placed at the pipe opening, and then the control gear 227 is rotated to drive the drive gear 222 and the driven gear 223 to rotate synchronously. The rotation of the drive gear 222 will drive the first incomplete gear 224 to rotate together; the rotation of the driven gear 223 will drive the second incomplete gear 225 to rotate together.
[0042] When the first incomplete gear 224 meshes with the driven rack 232 on the upper side of the movable plate 231, the second incomplete gear 225 separates from the driven rack 232 on the lower side of the movable plate 231. At this time, the first incomplete gear 224 will drive the movable plate 231 to move horizontally to the left along the sliding groove 235 with the sliding block 233. The movable plate 231 will drive the mounting rod 21 to move horizontally to the left together. At this time, the scraper 32 set on the mounting assembly connected to the mounting rod 21 will move horizontally to the left together with the mounting rod 21 to scrape the inner wall of the pipe.
[0043] When the second incomplete gear 225 meshes with the driven rack 232 on the lower side of the movable plate 231, the first incomplete gear 224 separates from the driven rack 232 on the upper side of the movable plate 231. At this time, the second incomplete gear 225 will drive the movable plate 231 to move horizontally to the right. The movable plate 231 will drive the mounting rod 21 to move horizontally to the right together, so that the scraper 32 will follow the mounting rod 21 to move horizontally to the right and scrape the inside of the pipe.
[0044] In this invention, the mounting rod 21 is controlled to move back and forth continuously by the control gear 227, and the vehicle body 1 travels inside the pipe, so that the scraper 32 scrapes the inner wall of the pipe repeatedly, and finally scrapes off the thicker part of the sludge on the inner wall of the pipe.
[0045] like Figures 1-5 As shown, the mounting assembly includes a retaining ring 31 and a dovetail sliding block 34. The center of the retaining ring 31 is fixedly mounted on the left end of the mounting rod 21. Multiple scraper plates 32 are provided on the left side of the retaining ring 31, and multiple dovetail grooves 33 are provided along the outer edge of the left side of the retaining ring 31. The dovetail sliding block 34 is fixedly mounted on the right side of the scraper plate 32. The dovetail sliding block 34 is inserted into the dovetail groove 33 for a limited sliding connection. A locking assembly 35 is provided on the scraper plate 32. The diameter of the scraper plate 32 is slightly smaller than the inner diameter of the pipe.
[0046] like Figures 1-4 As shown, the locking assembly 35 includes a locking screw 352, and multiple threaded holes 351 are provided on the left side of the retaining ring 31 and the scraper plate 32; the right end of the locking screw 352 is threaded into the two threaded holes 351 for internal thread connection.
[0047] In this utility model, when the scraper plate 32 is worn, the locking screw 352 on the worn scraper plate 32 is rotated to release the scraper plate 32 from the fixing ring 31. Then, the worn scraper plate 32 is pulled to the left, and the scraper plate 32 moves to the left along the dovetail groove 33 with the dovetail sliding block 34 until the scraper plate 32 is separated from the fixing ring 31. Then, a new scraper plate 32 is inserted into the fixing ring 31 until the threaded hole 351 on the scraper plate 32 is aligned with the threaded hole 351 on the fixing ring 31. Then, the locking screw 352 is rotated along the threaded hole 351 to fix the scraper plate 32 and the fixing ring 31.
[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A pipeline dredging device, comprising a vehicle body (1), characterized in that: It also includes a reciprocating scraping mechanism (2), and the inside of the vehicle body (1) is equipped with a reciprocating scraping mechanism (2) for reciprocating material hanging operations on the inner wall of the pipe; the reciprocating scraping mechanism (2) is equipped with a combined scraping mechanism (3) for scraping sludge from the inner wall of the pipe and facilitating the replacement of worn parts; The reciprocating scraping mechanism (2) includes a mounting rod (21), a movable component (23) for controlling the mounting rod (21) to move back and forth, and a drive component (22) for controlling the movement of the movable component (23). The drive component (22) is installed inside the vehicle body (1). The movable component (23) is also installed inside the vehicle body (1) and connected to the drive component (22). The mounting rod (21) is connected to the drive component (22), and the left end of the mounting rod (21) slides through and extends to the outside of the vehicle body (1) and is connected to the combined scraping mechanism (3).
2. The pipeline dredging device according to claim 1, characterized in that, The combined scraping mechanism (3) includes multiple scraping blades (32), a mounting assembly, and a locking assembly (35); one side of the mounting assembly is mounted on the end of the mounting rod (21) located outside the vehicle body (1), and multiple scraping blades (32) are provided on the other side of the mounting assembly; the locking assembly (35) is connected to the mounting assembly and the scraping blades (32).
3. The pipeline dredging device according to claim 2, characterized in that, The drive assembly (22) includes a drive gear (222), a driven gear (223), a reversing assembly, a vertical plate (226), and a control gear (227). The vertical plate (226) is fixedly installed inside the vehicle body (1). The drive gear (222) is rotatably mounted on the upper side of the left front end of the vertical plate (226). The driven gear (223) is rotatably mounted on the lower side of the left front end of the vertical plate (226). The control gear (227) is rotatably mounted on the middle front side of the vertical plate (226). The control gear (227) is simultaneously meshed with both the drive gear (222) and the driven gear (223). Both the drive gear (222) and the driven gear (223) are connected to the reversing assembly.
4. The pipeline dredging device according to claim 3, characterized in that, The reversing assembly includes a first incomplete gear (224) and a second incomplete gear (225). The front side of the driving gear (222) is coaxially and fixedly connected to the rear side of the first incomplete gear (224). The front side of the driven gear (223) is coaxially and fixedly connected to the rear side of the second incomplete gear (225). Both the first incomplete gear (224) and the second incomplete gear (225) are connected to the movable assembly (23).
5. The pipeline dredging device according to claim 4, characterized in that, The movable component (23) includes a movable plate (231), a driven rack (232), a sliding block (233), and a connecting plate (234); the two connecting plates (234) are fixedly installed on the left and right ends of the front side of the upright plate (226); each of the two connecting plates (234) is provided with a sliding groove (235); the two ends of the movable plate (231) slide through the inner side of the two connecting plates (234), and the front end of the movable plate (231) is fixedly installed with a sliding block (233); the two ends of the sliding block (233) are respectively limited and slidably connected to the two sliding grooves (235); two driven racks (232) are symmetrically fixedly installed at the upper and lower ends of the movable plate (231).
6. The pipeline dredging device according to claim 5, characterized in that, When the first incomplete gear (224) meshes with the upper driven rack (232), the second incomplete gear (225) separates from the lower driven rack (232); when the second incomplete gear (225) meshes with the lower driven rack (232), the first incomplete gear (224) separates from the upper driven rack (232).
7. The pipeline dredging device according to claim 2, characterized in that, The mounting assembly includes a fixing ring (31) and a dovetail sliding block (34). The center of the fixing ring (31) is fixedly mounted on the left end of the mounting rod (21). Multiple scraper plates (32) are provided on the left side of the fixing ring (31), and multiple dovetail grooves (33) are provided on the outer edge of the left side of the fixing ring (31). The dovetail sliding block (34) is fixedly mounted on the right side of the scraper plate (32). The dovetail sliding block (34) is inserted into the dovetail groove (33) for a limited sliding connection. A locking assembly (35) is provided on the scraper plate (32).
8. The pipeline dredging device according to claim 7, characterized in that, The locking assembly (35) includes a locking screw (352), and multiple threaded holes (351) are provided on the left side of the fixing ring (31) and the scraper plate (32); the right end of the locking screw (352) is threaded into the two threaded holes (351) for internal thread connection.
Citation Information
Patent Citations
Pipeline dredging device
CN218692271U