Dredging device for longitudinal drainage pipeline of tunnel

Abstract

The invention relates to the technical field of tunnel drainage, in particular to a tunnel longitudinal drainage pipeline dredging device which comprises a fixing seat, a fixing mechanism is arranged on the upper portion of the fixing seat, a motor is fixedly arranged on one side of the bottom face in the fixing seat, and a dredging mechanism is arranged in front of the motor and comprises a plurality of rotating shafts arranged in a linear equal-interval structure. Wherein a movable seat is arranged in the middle of one rotating shaft, the movable seat is of a circular truncated cone structure with the front portion small and the rear portion large and is not coaxial with the rotating shafts, the movable seat and the fixed seat are located on the same axis, the dredging mechanism further comprises a rotating disc, the rotating disc is coaxially and slidably connected with the rotating shafts, and a plurality of first crushing blades are fixedly arranged on the rotating disc in an annular structure at equal intervals. The device is provided with a drill bit, crystals on the inner wall of the drainage pipeline can be removed in the vertical direction through cooperation of the drill bit and a driving structure in the dredging mechanism, and the device can fully dredge and clean the drainage pipeline in cooperation with other cleaning structures on the rotating disc and the moving seat without damaging the surrounding mountain structure and the ecological environment.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel drainage, and in particular to a tunnel longitudinal drainage pipe dredging device. Background Art

[0002] Tunnel waterproofing and drainage refers to the waterproofing and drainage measures taken to ensure that tunnel construction will not be damaged by water leakage, endangering driving safety, corroding equipment in the tunnel, and reducing the service life of the structure. The construction of the tunnel destroys the original water system balance of the mountain, and the tunnel becomes a channel for the accumulation of groundwater near the mountain. These groundwaters are rich in many minerals and other trace elements. After the groundwater flows through the tunnel drainage pipe for a long time, a large amount of solid crystals will accumulate or condense in the drainage pipe. If these crystals are not treated, they will seriously affect the drainage effect, thereby threatening the structure of the tunnel and affecting the driving safety of the tunnel.

[0003] The existing treatment method generally adopts the method of pouring a cleaning agent that can dissolve the crystals to achieve the unblocking of the pipeline. During the pouring, the staff can also extend a long rod into the pipeline to crush the crystals. This method is simple and quick to operate, but the cleaning agent can dissolve the crystals and will erode the mountain to a certain extent. The existing tunnel drainage pipes all discharge water directly into the external valleys, which can easily cause the mountain structure to be affected by the cleaning agent and also cause the surrounding ecological environment to be polluted. In view of this, the present invention proposes a tunnel longitudinal drainage pipe unblocking device. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a tunnel longitudinal drainage pipe dredging device, which can effectively solve the problems in the prior art.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a tunnel longitudinal drainage pipe dredging device, comprising a fixing seat, a fixing mechanism is provided on the upper part of the fixing seat, and the fixing mechanism fixes the fixing seat and the drainage pipe to each other;

[0009] A motor is fixedly arranged on one side of the inner bottom surface of the fixed seat, and a dredging mechanism is arranged in front of the motor, and the dredging mechanism includes a plurality of rotating shafts arranged in a linear and equidistant structure, wherein a movable seat is arranged in the middle of one of the rotating shafts, and the movable seat is a truncated cone structure with a small front and a large rear and is not coaxial with the rotating shaft, and a plurality of shovel plates are fixedly arranged on the circumferential outer wall of the movable seat in an annular and equidistant structure, and the outer ends of the shovel plates are in sliding contact with the inner wall of the drainage pipe, and the movable seat and the fixed seat are located on the same axis;

[0010] The dredging mechanism also includes a rotating disk, which is coaxially slidably connected with the rotating shaft. The rotating disk is a truncated cone structure that is small in the front and large in the back. A plurality of first crushing blades are fixedly provided on the rotating disk in an annular structure with equal spacing.

[0011] Preferably, the output end of the motor is coaxially fixedly connected to the rear end of the rearmost rotating shaft, and two plug rods are symmetrically fixed to the rear ends of the rotating shafts except the rearmost rotating shaft, and two rod grooves for plugging with the plug rods are symmetrically opened on the front walls of the rotating shafts except the frontmost rotating shaft, and the plug rod is a U-shaped structure, and two clamping blocks are symmetrically fixed to the rear end of the plug rod, and a clamping groove for plugging with the clamping block is opened on the inner wall of the rod groove, and the first crushing blade is an arc-shaped structure.

[0012] Preferably, the outer walls of the plurality of rotating shafts are provided with a plurality of first spiral grooves in a linear and equidistant structure, a second spiral groove is provided at the front end of the first spiral groove, the front end of the second spiral groove is connected to the rear end of the first spiral groove adjacent to its front side, the front end of the second spiral groove at the front end and the rear end of the first spiral groove at the rear end are both closed structures, and the spacing between each turn of the first spiral groove is smaller than the spacing between each turn of the second spiral groove.

[0013] Preferably, the movable seat is provided with an axis groove that slides with the rotating shaft, the inner wall of the axis groove is fixedly provided with a guide block, the guide block slides with the first spiral groove and the second spiral groove, the rear wall of the turntable is coaxially fixedly connected with a rotating rod, the front wall of the movable seat is provided with a rotating groove that rotates with the rotating rod, the turntable and the rotating rod are both provided with circular grooves that slide with the rotating shaft, the inner wall of the circular groove is fixedly provided with a limit block, and the outer wall of the rotating shaft is provided with a limit groove that slides with the limit block.

[0014] Preferably, a disc is fixedly provided on the front wall of the turntable. The disc has an annular cone structure and is coaxially arranged with the shaft groove. The inside of the disc rotates with the rotating rod. The circumferential outer wall of the disc is an annular evenly spaced structure with multiple tooth grooves. The outer side of the disc is an annular evenly spaced structure with multiple bevel gears, and the bevel gears are meshingly connected with the tooth grooves.

[0015] Preferably, the outer end of the bevel gear is coaxially fixedly connected with a multi-section telescopic rod, and except for the outermost section which is cylindrical, the other sections of the multi-section telescopic rod are all elliptical cylinder structures. The outer end of the multi-section telescopic rod is coaxially fixedly connected with a drill bit, and the outer end of the drill bit is an annular evenly spaced structure with a plurality of second crushing blades fixedly provided, and the second crushing blades are arc-shaped structures. The outer wall of the drill bit is evenly fixed with a plurality of crushing heads relative to the position between two adjacent second crushing blades, and the crushing head is a conical structure with the tip facing outward.

[0016] Preferably, the outer end of the bevel gear and the outermost end of the multi-section telescopic rod are rotatably sleeved with a movable plate, the front wall of the movable plate close to the disk is connected and fixed to the rear wall of the moving seat, the front wall of the movable plate away from the disk is slidably connected to the rear wall of the moving seat, and the rear wall of the movable plate close to the disk is fixedly provided with a slide plate, the slide plate is an arc-shaped structure, and the front wall of the turntable is provided with an annular groove that slidably cooperates with multiple slide plates, and the annular groove is coaxially arranged with the disk.

[0017] Preferably, a plurality of first sliding bars are provided in a circular equidistant structure in front of the movable seat, a second sliding bar is provided between two adjacent first sliding bars, the length of the first sliding bar is greater than the length of the second sliding bar, the total number of the first sliding bars and the second sliding bars is equal to the total number of movable plates away from the disk, and the plurality of first sliding bars and the plurality of second sliding bars are respectively connected and fixed to the bottom surfaces of the plurality of movable plates away from the disk.

[0018] Preferably, a sliding ball is fixed to the rear end of the first sliding rod and the rear end of the second sliding rod, and a first guide groove and a second guide groove are respectively provided on the front wall of the moving seat relative to the positions of the plurality of first sliding rods and the plurality of second sliding rods, and the center positions of the first guide groove and the second guide groove correspond to the axial position of the moving seat, and the first sliding rod and the second sliding rod are respectively slidably matched with the first guide groove and the second guide groove, and ball grooves slidably matched with the sliding ball are both provided at the rear ends of the first guide groove and the second guide groove, and the front view surfaces of the first guide groove and the second guide groove are both wavy annular structures and are centrally symmetrically arranged.

[0019] Preferably, the fixed seat is an annular structure, and the fixing mechanism includes a sliding seat slidably connected in the upper interlayer of the fixed seat, the top surface of the sliding seat is rotatably connected to a threaded rod, the upper end of the threaded rod is coaxially fixedly connected to a handwheel, the upper end of the threaded rod passes through the top surface of the fixed seat, extends upward and is threadedly connected to the fixed seat, two through grooves are symmetrically provided on the inner walls on both sides of the fixed seat, an extrusion plate is slidably connected in the through grooves, a connecting rod is hinged between the inner side wall of the extrusion plate and the sliding seat, the connecting rod is an inclined structure with a high inside and a low outside and is slidably connected to the fixed seat, the extrusion plate is an arc structure, and a plurality of anti-slip strips are evenly fixed on the outer wall of the extrusion plate.

[0020] Beneficial Effects

[0021] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with a drill bit, and the crystals on the inner wall of the drainage pipe can be removed from the vertical direction through the cooperation of the drill bit and the driving structure in the dredging mechanism. In conjunction with other cleaning structures on the turntable and the movable seat, the device can fully dredge and clean the drainage pipe without damaging the surrounding mountain structure and ecological environment.

[0023] 2. The present invention is provided with a turntable and a movable seat. By arranging the two on different axes, the device can operate the overall propulsion of the dredging mechanism and clean the inner wall of the pipeline through an electric motor at the starting end, which not only helps to smoothly carry out the cleaning work, but also reduces the operating difficulty of the device. The design is ingenious and the practicability is strong.

[0024] 3. The present invention is provided with interconnected rotating shafts, and the interconnection of multiple rotating shafts can increase the range of action of the dredging mechanism, so that the device can be more widely used in drainage pipes of various different diameters, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the decomposition structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the rotating shaft of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the dredging mechanism of the present invention;

[0030] Figure 5 It is a schematic cross-sectional structure diagram of the movable seat and the rotating disk of the present invention;

[0031] Figure 6 It is a schematic diagram of the drill bit structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the cross-sectional structure of the fixing seat of the present invention;

[0033] Figure 8 It is a top view schematic diagram of the positional relationship between the rotating shaft, the movable seat and the rotating disk of the present invention.

[0034] The numbers in the figure represent: 1, fixed seat; 2, fixing mechanism; 3, motor; 4, dredging mechanism; 5, rotating shaft; 6, moving seat; 7, shovel plate; 8, rotating disk; 9, first crushing blade; 10, insert rod; 11, rod groove; 12, clamping block; 13, clamping groove; 14, first spiral groove; 15, second spiral groove; 16, shaft groove; 17, guide block; 18, rotating rod; 19, rotating groove; 20, circular groove; 21, limit block; 22, limit groove; 23, circular disk ; 24. Tooth groove; 25. Bevel gear; 26. Multi-section telescopic rod; 27. Drill bit; 28. Second crushing blade; 29. ​​Crushing head; 30. Movable plate; 31. Slide plate; 32. Annular groove; 33. First slide bar; 34. Second slide bar; 35. Sliding ball; 36. First guide groove; 37. Second guide groove; 38. Ball groove; 39. Sliding seat; 40. Threaded rod; 41. Through groove; 42. Extrusion plate; 43. Connecting rod; 44. Anti-slip strip; 45. Hand wheel. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] A tunnel longitudinal drainage pipe dredging device, reference Figure 1-Figure 8 , including a fixed seat 1, a fixing mechanism 2 is provided on the upper part of the fixed seat 1, the fixing mechanism 2 fixes the fixed seat 1 and the drainage pipe to each other, the fixed seat 1 is an annular structure, the fixing mechanism 2 includes a sliding seat 39 slidably connected in the upper interlayer of the fixed seat 1, the top surface of the sliding seat 39 is rotatably connected with a threaded rod 40, the upper end of the threaded rod 40 is coaxially fixedly connected with a hand wheel 45, the upper end of the threaded rod 40 penetrates the top surface of the fixed seat 1 and extends to the top and is threadedly connected to the fixed seat 1, two through grooves 41 are symmetrically provided on the inner walls on both sides of the fixed seat 1, and an extrusion plate 42 is slidably connected in the through groove 41, and a connecting rod 43 is hinged between the inner side wall of the extrusion plate 42 and the sliding seat 39, the connecting rod 43 is an inclined structure with an inner high and an outer low, and is slidably connected to the fixed seat 1, the extrusion plate 42 is an arc structure, and a plurality of anti-slip strips 44 are evenly fixed on the outer wall of the extrusion plate 42.

[0037] An electric motor 3 is fixedly provided on one side of the inner bottom surface of the fixed seat 1, and a dredging mechanism 4 is provided in front of the motor 3. The dredging mechanism 4 includes a plurality of rotating shafts 5 arranged in a linear and equidistant structure, wherein a movable seat 6 is provided in the middle of one of the rotating shafts 5, and the movable seat 6 is a truncated cone structure which is small in the front and large in the rear and is not coaxial with the rotating shaft 5. A plurality of shovel plates 7 are fixedly provided on the circumferential outer wall of the movable seat 6 in a circular and equidistant structure, and the outer ends of the shovel plates 7 are in sliding contact with the inner wall of the drainage pipe, and the movable seat 6 and the fixed seat 1 are located on the same axis.

[0038] The dredging mechanism 4 also includes a turntable 8, which is coaxially slidably connected with the rotating shaft 5. The turntable 8 is a truncated cone structure with a small front and a large rear. A plurality of first crushing blades 9 are fixedly arranged on the turntable 8 in a circular equidistant structure. The output end of the motor 3 is coaxially fixedly connected with the rear end of the rotating shaft 5 on the rear side. Two plug rods 10 are symmetrically fixedly arranged at the rear ends of the rotating shafts 5 except the rear end rotating shaft 5. Two rod grooves 11 for plugging with the plug rods 10 are symmetrically provided on the front walls of the rotating shafts 5 except the front end rotating shaft 5. The plug rod 10 is a U-shaped structure. Two clamping blocks 12 are symmetrically fixedly arranged at the rear end of the plug rod 10. A clamping groove 13 for plugging with the clamping block 12 is provided on the inner wall of the rod groove 11. The first crushing blade 9 is an arc-shaped structure.

[0039] The outer walls of the plurality of rotating shafts 5 are provided with a plurality of first spiral grooves 14 in a linear and equidistant structure, the front end of the first spiral groove 14 is provided with a second spiral groove 15, the front end of the second spiral groove 15 is connected to the rear end of the first spiral groove 14 adjacent to its front side, the front end of the second spiral groove 15 located at the front end and the rear end of the first spiral groove 14 located at the rear end are both closed structures, the pitch of each turn of the first spiral groove 14 is smaller than the pitch of each turn of the second spiral groove 15, the movable seat 6 is provided with an axis groove 16 that is slidably matched with the rotating shaft 5, the inner wall of the axis groove 16 is fixedly provided with a guide block 17, the guide block 17 is slidably matched with the first spiral groove 14 and the second spiral groove 15, the rear wall of the rotating disk 8 is coaxially fixedly connected with a rotating rod 18, the front wall of the movable seat 6 is provided with a rotating groove 19 that is rotatably matched with the rotating rod 18, the rotating disk 8 and the rotating rod 18 are both provided with a circular groove 20 that is slidably matched with the rotating shaft 5, the inner wall of the circular groove 20 is fixedly provided with a limit block 21, and the outer wall of the rotating shaft 5 is provided with a limit groove 22 that is slidably matched with the limit block 21.

[0040] The front wall of the turntable 8 is fixed with a disk 23, which has an annular truncated cone structure and is coaxially arranged with the shaft groove 16. The inside of the disk 23 is rotatably matched with the rotating rod 18. The outer wall of the circumference of the disk 23 is an annular equidistant structure with a plurality of tooth grooves 24. The outer side of the disk 23 is an annular equidistant structure with a plurality of bevel gears 25. The bevel gears 25 are meshed and connected with the tooth grooves 24. The outer end of the bevel gear 25 is coaxially fixedly connected with a multi-section telescopic rod 26. Except for the outermost section of the multi-section telescopic rod 26, each section is an elliptical column structure. The outer end of the multi-section telescopic rod 26 is coaxially fixedly connected with a drill bit 27. The outer end of the drill bit 27 is A plurality of second crushing blades 28 are fixedly arranged in an annular structure with equal spacing, and the second crushing blades 28 are in an arc-shaped structure. A plurality of crushing heads 29 are evenly fixedly arranged at positions between two adjacent second crushing blades 28 on the outer wall of the drill bit 27, and the crushing head 29 is a conical structure with the tip facing outward. A movable plate 30 is rotatably sleeved on the outer end of the bevel gear 25 and the outermost end of the multi-section telescopic rod 26. The front wall of the movable plate 30 close to the disc 23 is connected and fixedly connected to the rear wall of the moving seat 6, and the front wall of the movable plate 30 away from the disc 23 is slidably connected to the rear wall of the moving seat 6. A slide plate 31 is fixedly arranged on the rear wall of the movable plate 30 close to the disc 23, and the slide plate 31 is in an arc-shaped structure. The front wall of the turntable 8 is provided with an annular groove 32 that is slidably matched with the plurality of slide plates 31. The annular groove 32 is coaxially arranged with the disk 23. A plurality of first slide bars 33 are provided in an annular structure with equal spacing in front of the movable seat 6. A second slide bar 34 is provided between two adjacent first slide bars 33. The length of the first slide bar 33 is greater than the length of the second slide bar 34. The total number of the first slide bars 33 and the second slide bars 34 is equal to the total number of the movable plates 30 away from the disk 23. The plurality of first slide bars 33 and the plurality of second slide bars 34 are respectively connected and fixed to the bottom surfaces of the plurality of movable plates 30 away from the disk 23. The rear end of the first slide bar 33 is connected to the second slide bar 34. A sliding ball 35 is fixedly provided at the rear end of the two sliding rods 34. A first guide groove 36 and a second guide groove 37 are respectively provided at the positions of the front wall of the moving seat 6 relative to the plurality of first sliding rods 33 and the plurality of second sliding rods 34. The center positions of the first guide groove 36 and the second guide groove 37 correspond to the axial position of the moving seat 6. The first sliding rod 33 and the second sliding rod 34 are respectively slidably matched with the first guide groove 36 and the second guide groove 37. The rear ends of the first guide groove 36 and the second guide groove 37 are both provided with a ball groove 38 slidably matched with the sliding ball 35. The front surfaces of the first guide groove 36 and the second guide groove 37 are both wavy annular structures and are centrally symmetrically arranged.

[0041] Working principle: the staff can place the device at the open end of the tunnel longitudinal drainage pipe, so that the dredging mechanism 4 of the device extends into the pipe, and then the staff can turn the hand wheel 45 to make the threaded rod 40 move down along the direction of its threaded connection with the fixed seat 1, and the sliding seat 39 will also move down. At the same time, the connecting rod 43 rotatably connected to the sliding seat 39 will also move down. Because the lower end of the connecting rod 43 is rotatably connected to the extrusion plate 42 that cannot move downward, the connecting rod 43 can only deflect downward at the inner end of the position where it is rotatably connected to the extrusion plate 42 as the endpoint, and then the extrusion plate 42 can be translated in the direction away from the fixed seat 1, and then the multiple anti-slip strips 44 on the outer wall of the extrusion plate 42 will be squeezed against the inner wall of the drainage pipe to form a fixing effect. At this point, the mutual fixation of the device and the drainage pipe is completed, and the open end position of the drainage pipe belongs to an area that is more convenient to clean, so there will be no dredging dead corner due to the existence of the fixed seat 1;

[0042] In the process of extending the rotating shaft 5 into the drainage pipe, the staff can connect the multiple rotating shafts 5 together through the plug-in matching relationship between the plug rod 10 and the rod groove 11, and there is a card-fitting relationship between the clamping block 12 and the clamping groove 13, and the two connected rotating shafts 5 will not be separated without external pulling. It should be noted that the multiple rotating shafts 5 in this device, except for the two at the front end and the rear end, have the same structure. The front end of the second spiral groove 15 at the front end and the rear end of the first spiral groove 14 at the rear end are both open designs. When the rotating shaft 5 is connected to other rotating shafts 5 After the connection, the first spiral groove 14 and the second spiral groove 15 at the intersection of the two rotating shafts 5 can be connected to each other and slidably cooperate with the guide block 17. The first spiral groove 14 at the rear end of the frontmost rotating shaft 5 and the second spiral groove 15 at the front end of the rearmost rotating shaft 5 are the same. The second spiral groove 15 at the front end of the frontmost rotating shaft 5 and the first spiral groove 14 at the rear end of the rearmost rotating shaft 5 are the opposite. The closed structure is set to prevent the moving seat 6 and the turntable 8 from leaving the range of the rotating shaft 5 during the operation of the device, thereby reducing the difficulty of operating the device.

[0043] After a sufficient number of rotating shafts 5 are connected, the motor 3 can be used to drive the rotating shaft 5 to rotate, because the motor 3 is fixed to one side of the bottom surface of the fixed seat 1, and it is not coaxially fixedly connected with the fixed seat 1. Therefore, after the fixed seat 1 is fixed to the drainage pipe, the rotation of the output end of the motor 3 will not cause the rotation of itself and the fixed seat 1 under the action of friction. The same is true for the movable seat 6, because it is not coaxially arranged with the rotating shaft 5, and the multiple shovel plates 7 on its outer wall are in sliding contact with the inner wall of the drainage pipe. Therefore, the rotation of the rotating shaft 5 will squeeze the guide block 17 through the first spiral groove 14 and the second spiral groove 15. Because the guide block 17 is fixed in the shaft groove 16 on the movable seat 6, the guide block 17 cannot rotate like the rotating shaft 5, and can only be squeezed by the two spiral grooves during the rotation of the rotating shaft 5 to drive the movable seat 6 to move forward at the same time;

[0044] On the other hand, the rotation of the rotating shaft 5 will also drive the rotating disk 8 to rotate through the sliding connection between the limit block 21 and the limit groove 22. Although the limit groove 22 is inferior to the first spiral groove 14 and the second spiral groove 15, its width is narrow, and the guide block 17 is a hemispherical structure, so it will not affect the squeezing of the two spiral grooves on the guide block 17. The rotating disk 8 is eccentrically connected to the movable seat 6 through the rotating rod 18 and the rotating groove 19, so its rotation will not affect the movable seat 6, and it will also produce preliminary crushing of the scale inside the drainage pipe through the hostile crushing blade 9 thereon, and crush the crystals in the middle of the drainage pipe. Because these crystals are far away from the inner wall of the drainage pipe and are the latest condensed, their texture is softer than the crystals at the edge of the inner wall of the drainage pipe. They can be crushed by simply drilling the top, and the scale inside the drainage pipe is crushed. The stubborn crystals at the edge are cleaned by the horizontal drill bits 27. These drill bits 27 will rotate with the rotation of the turntable 8 during the forward movement of the moving seat 6 and the turntable 8. The axis of their rotation is not only the rotating shaft 5 and the shaft groove 16, but also around the disc 23. In this way, the bevel gear 25 at the inner end will always rotate under the action of the tooth groove 24. The bevel gear 25 drives the drill bit 27 to rotate by itself through the multi-section telescopic rod 26. The multi-section telescopic rod 26 has a sleeve rod with the largest diameter near the end of the drill bit 27, which is cylindrical and coaxial with the bevel gear 25. The other slidable extension rods on it are all elliptical. At the same time, the groove on each section of the rod for receiving the remaining extension rods is also elliptical. This design is to ensure that the multi-section telescopic rod 26 can maintain the telescopic function while also serving as a transmission to drive the drill bit 27 to rotate.

[0045] As the multi-section telescopic rod 26 and the bevel gear 25 rotate, the movable plates 30 on the two will also rotate synchronously. The movable plate close to the disc 23 will not move away from the disc 23 under the restriction of the slide plate 31 and the annular groove 32, but will rotate around the axis of the disc 23, while the movable plate 30 away from the disc 23 will rotate while moving inward and outward under the sliding cooperation of the slide bar and the corresponding guide groove. Because the first slide bar 33 and the second slide bar 34 are of different lengths, and the ends of the two slide bars are connected with sliding balls 35, the position of the sliding ball 35 on the second slide bar 34 corresponds to the position of the first slide bar 33, and the sliding ball 35 on the first slide bar 33 is located behind the sliding ball 35 on the second slide bar 34, so the two guide bars are connected to each other. Even if there is a crossover between the grooves, the two slide bars and the upper slide balls 35 will not have a crossover problem. The two will only move in the corresponding guide grooves. Under the guidance of the wave-shaped annular structure of the guide grooves, the multi-section telescopic rods 26 will continuously expand and contract, and at the same time, the drill bit 27 will be pushed toward the inner wall of the drainage pipe. In addition, the self-rotation of the drill bit 27 and the second crushing blade 28 and multiple crushing heads 29 provided thereon for scraping off crystals make the drill bit 27 gradually break and crush the crystals on the inner wall of the drainage pipe in the process of approaching the inner wall of the drainage pipe. The parts of the two guide grooves near the edge of the movable seat 6 are complementary, and the two guide grooves are coaxial with the movable seat 6, so there will be no cleaning dead angle.

[0046] During the above-mentioned action, the guide block 17 will reciprocate and alternately correspond to the multiple first spiral grooves 14 and the multiple second spiral grooves 15. When it corresponds to the first spiral groove 14, the rotation speed of the turntable 8 will not change, but the forward movement speed of the moving seat 6 will be reduced. During this period, the stubborn crystals on the inner wall of the drainage pipe are crushed and destroyed, which is convenient for the subsequent thorough scraping of the shovel plate 7. When the guide block 17 corresponds to the second spiral groove 15, it is the opposite. It is to enable the multiple drill bits 27 to move quickly to the next drainage pipe inner wall area, reduce the overlapping part of the cleaning area of ​​the two drill bits 27, and help to increase the cleaning speed.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tunnel longitudinal drainage pipe dredging device, comprising a fixing seat (1), characterized in that: A fixing mechanism (2) is provided on the upper portion of the fixing seat (1), and the fixing mechanism (2) fixes the fixing seat (1) and the drainage pipe to each other; A motor (3) is fixedly arranged on one side of the bottom surface of the fixed seat (1), and a dredging mechanism (4) is arranged in front of the motor (3). The dredging mechanism (4) comprises a plurality of rotating shafts (5) arranged in a linear and equidistant structure, wherein a movable seat (6) is arranged in the middle of one of the rotating shafts (5), and the movable seat (6) is a truncated cone structure with a small front and a large rear and is not coaxial with the rotating shaft (5). The outer wall of the movable seat (6) is fixedly arranged with a plurality of shovel plates (7) in a circular and equidistant structure, and the outer ends of the shovel plates (7) are in sliding contact with the inner wall of the drainage pipe, and the movable seat (6) and the fixed seat (1) are located on the same axis. The dredging mechanism (4) further comprises a rotating disk (8), the rotating disk (8) being coaxially slidably connected with the rotating shaft (5), the rotating disk (8) being in a truncated cone structure with a smaller front portion and a larger rear portion, and a plurality of first crushing blades (9) being fixedly disposed in an annular structure with equal spacing therebetween on the rotating disk (8).

2. A tunnel longitudinal drainage pipe dredging device according to claim 1, characterized in that: The output end of the motor (3) is coaxially fixedly connected to the rear end of the rearmost rotating shaft (5); two plug rods (10) are symmetrically fixedly arranged at the rear ends of the rotating shafts (5) except the rearmost rotating shaft (5); two rod grooves (11) for plugging and cooperating with the plug rods (10) are symmetrically opened on the front walls of the rotating shafts (5) except the frontmost rotating shaft (5); the plug rod (10) is a U-shaped structure; two clamping blocks (12) are symmetrically fixedly arranged at the rear end of the plug rod (10); a clamping groove (13) for plugging and cooperating with the clamping block (12) is opened on the inner wall of the rod groove (11); and the first crushing blade (9) is an arc-shaped structure.

3. A tunnel longitudinal drainage pipe dredging device according to claim 2, characterized in that: The outer walls of the plurality of rotating shafts (5) are provided with a plurality of first spiral grooves (14) in a linear and equidistant structure, the front ends of the first spiral grooves (14) are provided with second spiral grooves (15), the front ends of the second spiral grooves (15) are connected to the rear ends of the first spiral grooves (14) adjacent to the front side thereof, the front ends of the second spiral grooves (15) at the front end and the rear ends of the first spiral grooves (14) at the rear end are both closed structures, and the pitch of each turn of the first spiral grooves (14) is smaller than the pitch of each turn of the second spiral grooves (15).

4. A tunnel longitudinal drainage pipe dredging device according to claim 3, characterized in that: The movable seat (6) is provided with an axis groove (16) which is slidably matched with the rotating shaft (5); a guide block (17) is fixedly provided on the inner wall of the axis groove (16); the guide block (17) is slidably matched with the first spiral groove (14) and the second spiral groove (15); a rotating rod (18) is coaxially fixedly connected to the rear wall of the rotating disk (8); a rotating groove (19) which is rotatably matched with the rotating rod (18) is provided on the front wall of the movable seat (6); a circular groove (20) which is slidably matched with the rotating shaft (5) is provided on the rotating disk (8) and the rotating rod (18); a limiting block (21) is fixedly provided on the inner wall of the circular groove (20); and a limiting groove (22) which is slidably matched with the limiting block (21) is provided on the outer wall of the rotating shaft (5).

5. A tunnel longitudinal drainage pipe dredging device according to claim 4, characterized in that: A disc (23) is fixedly arranged on the front wall of the rotating disk (8). The disc (23) has an annular truncated cone structure and is coaxially arranged with the shaft groove (16). The inside of the disc (23) is rotatably matched with the rotating rod (18). The outer wall of the disc (23) is an annular structure with equal spacing and is provided with a plurality of tooth grooves (24). The outer side of the disc (23) is an annular structure with equal spacing and is provided with a plurality of bevel gears (25). The bevel gears (25) are meshingly connected with the tooth grooves (24).

6. A tunnel longitudinal drainage pipe dredging device according to claim 5, characterized in that: The outer end of the bevel gear (25) is coaxially fixedly connected to a multi-section telescopic rod (26). Except for the outermost section of the multi-section telescopic rod (26) which is cylindrical, the other sections are all elliptical column structures. The outer end of the multi-section telescopic rod (26) is coaxially fixedly connected to a drill bit (27). The outer end of the drill bit (27) is annularly and evenly spaced and fixedly provided with a plurality of second crushing blades (28). The second crushing blades (28) are arc-shaped structures. The outer wall of the drill bit (27) is evenly fixedly provided with a plurality of crushing heads (29) at positions relative to the positions between two adjacent second crushing blades (28). The crushing heads (29) are conical structures with the tips facing outwards.

7. A tunnel longitudinal drainage pipe dredging device according to claim 6, characterized in that: The outer end of the bevel gear (25) and the outermost end of the multi-section telescopic rod (26) are both rotatably sleeved with a movable plate (30); the front wall of the movable plate (30) close to the disk (23) is fixedly connected to the rear wall of the movable seat (6); the front wall of the movable plate (30) away from the disk (23) is slidably connected to the rear wall of the movable seat (6); the rear wall of the movable plate (30) close to the disk (23) is fixedly provided with a slide plate (31); the slide plate (31) is an arc-shaped structure; the front wall of the rotating disk (8) is provided with an annular groove (32) slidably matched with the plurality of slide plates (31); the annular groove (32) is coaxially arranged with the disk (23).

8. A tunnel longitudinal drainage pipe dredging device according to claim 7, characterized in that: A plurality of first slide bars (33) are provided in an annular structure with equal spacing in front of the movable seat (6), a second slide bar (34) is provided between two adjacent first slide bars (33), the length of the first slide bar (33) is greater than the length of the second slide bar (34), the total number of the first slide bars (33) and the second slide bars (34) is equal to the total number of the movable plates (30) away from the disc (23), and the plurality of first slide bars (33) and the plurality of second slide bars (34) are respectively connected and fixed to the bottom surfaces of the plurality of movable plates (30) away from the disc (23).

9. A tunnel longitudinal drainage pipe dredging device according to claim 8, characterized in that: The rear ends of the first slide bar (33) and the rear ends of the second slide bar (34) are both fixedly provided with a slide ball (35); the front wall of the movable seat (6) is respectively provided with a first guide groove (36) and a second guide groove (37) at positions relative to the plurality of first slide bars (33) and the plurality of second slide bars (34); the center positions of the first guide groove (36) and the second guide groove (37) correspond to the axis position of the movable seat (6); the first slide bar (33) and the second slide bar (34) are respectively slidably matched with the first guide groove (36) and the second guide groove (37); the rear ends of the first guide groove (36) and the second guide groove (37) are both provided with a ball groove (38) slidably matched with the slide ball (35); the front surfaces of the first guide groove (36) and the second guide groove (37) are both wave-shaped annular structures and are centrally symmetrically arranged.

10. A tunnel longitudinal drainage pipe dredging device according to claim 9, characterized in that: The fixed seat (1) is an annular structure, and the fixing mechanism (2) comprises a sliding seat (39) slidably connected in the upper interlayer of the fixed seat (1), the top surface of the sliding seat (39) is rotatably connected with a threaded rod (40), the upper end of the threaded rod (40) is coaxially fixedly connected with a hand wheel (45), the upper end of the threaded rod (40) penetrates the top surface of the fixed seat (1) and extends upward and is threadedly connected to the fixed seat (1), two through grooves (41) are symmetrically provided on the inner walls on both sides of the fixed seat (1), and an extrusion plate (42) is slidably connected in the through grooves (41), a connecting rod (43) is hinged between the inner side wall of the extrusion plate (42) and the sliding seat (39), the connecting rod (43) is an inclined structure with a high inner side and a low outer side, and is slidably connected to the fixed seat (1), the extrusion plate (42) is an arc-shaped structure, and a plurality of anti-slip strips (44) are evenly fixed on the outer wall of the extrusion plate (42).

Images