Limited space dredging device

Abstract

The utility model belongs to the technical field of desilting devices, and particularly relates to a limited space desilting device which comprises two supporting frames and a center cylinder, the center cylinder is arranged between the two supporting frames, the two supporting frames are fixedly connected through the center cylinder, positioning parts are symmetrically arranged on the outer wall of the center cylinder, and the positioning parts are arranged on the outer wall of the center cylinder. A desilting assembly is arranged in the center cylinder, the desilting assembly penetrates through the two supporting frames, and the desilting assembly is rotationally connected with the two supporting frames. According to the device, the device is lowered into a sewage well through the lifting rope, the outer wall of the supporting frame moves downwards along the well wall, the downward moving stability of the device is improved, and the device is prevented from inclining; the device is positioned at a target position through the positioning part, an external pump body is used for sucking out sludge in the sewage well through the dredging assembly during dredging, clear water is pumped into the dredging assembly through the water pump in the dredging process, and the well wall is washed through the clear water and the sludge is diluted.

Description

Technical Field

[0001] The utility model belongs to the technical field of silt clearing devices, and in particular relates to a silt clearing device for a limited space. Background Art

[0002] Confined space refers to a closed or partially closed space with restricted entrances and exits but people can enter, which is not designed as a fixed workplace and has poor ventilation. It is easy for toxic and harmful, flammable and explosive substances to accumulate or the space has insufficient oxygen content. Confined space generally has the following characteristics: limited space and relative isolation from the outside world. Confined space can be completely closed, such as various inspection wells and reactors, or partially closed, such as open sewage treatment pools and sewage wells. After a certain period of use, silt will be deposited at the bottom of the sewage well, which needs to be cleared with dredging equipment.

[0003] The commonly used dredging equipment is a sewage pump. When in use, the pipe is directly lowered to the bottom of the sewage well, and the sludge is extracted by the sewage pump. If the sludge at the bottom of the sewage well is thick and difficult to absorb, and the sludge on the well wall is difficult to remove, the dredging will be incomplete and the quality of dredging will be affected. Utility Model Content

[0004] The utility model aims to provide a limited space desilting device, which can wash the well wall and dilute the silt during desilting, so as to facilitate desilting and solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a limited space dredging device, comprising a support frame and a center tube, wherein there are two support frames, the center tube is arranged between the two support frames, and the two support frames are fixedly connected through the center tube, the outer wall of the center tube is symmetrically provided with positioning components, the interior of the center tube is provided with a dredging assembly, the dredging assembly passes through the two support frames, the dredging assembly is rotatably connected to the two support frames, and the interior of the center tube is provided with a driving assembly for driving the dredging assembly to rotate.

[0006] Furthermore, the support frame includes a circular plate and a circular ring, and connecting rods equidistantly distributed around the axis of the circular plate are arranged between the circular plate and the circular ring. The circular plate and the circular ring are fixedly connected by the connecting rods, and a through hole for installing a dredging component is arranged in the middle of the circular plate.

[0007] Furthermore, the outer wall of the circular ring is provided with a U-shaped plate and a mounting frame, the interior of the U-shaped plate is rotatably connected to a first roller, and both ends of the mounting frame are rotatably connected to second rollers.

[0008] Furthermore, the positioning component includes a connecting plate and a top plate, the connecting plate is fixedly connected to the outer wall of the center tube, and an electric push rod is symmetrically arranged between the connecting plate and the top plate. The two ends of the electric push rod are respectively fixedly connected to one side of the connecting plate and one side of the top plate, and the other side of the top plate is provided with equidistantly distributed convex strips.

[0009] Furthermore, the dredging assembly includes a vertical steel pipe, which is rotatably connected to the through hole in the middle of the circular plate through a bearing, and the bottom end of the vertical steel pipe is fixedly connected to a horizontal steel pipe, and the bottom end of the horizontal steel pipe is fixedly connected to short pipes equidistantly distributed along the length direction of the horizontal steel pipe.

[0010] Furthermore, a cover body is fixedly connected to the top end of one of the circular plates, a sealing bearing is arranged inside the cover body, the cover body is rotatably connected to the top end of the short tube through the sealing bearing, and the top end of the cover body is fixedly connected to a docking tube.

[0011] Furthermore, the driving assembly includes a reduction motor and a first gear, the reduction motor is fixedly connected to the inner wall of the center tube, the first gear is fixedly sleeved on the outer wall of the vertical steel pipe, the output shaft of the reduction motor is fixedly sleeved with a second gear, and the second gear is meshingly connected to the first gear.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the device is lowered into the sewage well by a lifting rope, and the outer wall of the support frame moves down along the well wall, thereby improving the stability of the device when moving downward and avoiding the device from tilting; the device is positioned at the target position by a positioning component, and during dredging, an external pump body is used to suck out the silt inside the sewage well through the dredging component. During the dredging process, clean water is pumped into the interior of the dredging component through a water pump, and the clean water is used to flush the well wall and dilute the silt, thereby facilitating dredging. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the support frame of the utility model;

[0015] Figure 3 It is a front view of the utility model;

[0016] Figure 4 It is a left sectional view of the utility model;

[0017] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of part A.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Support frame; 11. Round plate; 12. Ring; 13. Connecting rod; 14. U-shaped plate; 15. First roller; 16. Mounting frame; 17. Second roller; 2. Center tube; 3. Positioning component; 31. Connecting plate; 32. Top plate; 33. Electric push rod; 34. Raised strip; 4. Dredging assembly; 41. Vertical steel pipe; 42. Horizontal steel pipe; 43. Short pipe; 44. Cover; 45. Sealed bearing; 46. Butt pipe; 5. Driving assembly; 51. Speed ​​reduction motor; 52. First gear; 53. Second gear. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0021] like Figure 1 and 4 As shown, a limited space dredging device includes a support frame 1 and a center tube 2, there are two support frames 1, the center tube 2 is arranged between the two support frames 1, and the two support frames 1 are fixedly connected through the center tube 2, the outer wall of the center tube 2 is symmetrically provided with positioning components 3, and the interior of the center tube 2 is provided with a dredging component 4, the dredging component 4 passes through the two support frames 1, the dredging component 4 is rotatably connected to the two support frames 1, and the interior of the center tube 2 is provided with a driving component 5 for driving the dredging component 4 to rotate.

[0022] According to the above structure, when in use, the long water pipe is connected to the top of the dredging component 4, and the device is lowered into the sewage well by a lifting rope. The outer wall of the support frame 1 moves down along the well wall to improve the stability of the device and avoid the device from tilting. After being lowered to the corresponding position, the device is positioned at the target position by the positioning component 3. During dredging, an external pump body is used to suck out the silt inside the sewage well through the dredging component 4. During the dredging process, clean water is pumped into the dredging component 4 by a water pump, and the well wall is flushed with clean water to dilute the silt, which is convenient for dredging.

[0023] like Figure 1 and 2 As shown, the support frame 1 includes a circular plate 11 and a circular ring 12, and connecting rods 13 are arranged between the circular plate 11 and the circular ring 12 and are equidistantly distributed around the axis of the circular plate 11. The circular plate 11 and the circular ring 12 are fixedly connected by the connecting rods 13. A through hole for installing the dredging component 4 is arranged in the middle of the circular plate 11, and a U-shaped plate 14 and a mounting frame 16 are arranged on the outer wall of the circular ring 12. The inside of the U-shaped plate 14 is rotatably connected to a first roller 15, and both ends of the mounting frame 16 are rotatably connected to second rollers 17.

[0024] According to the above structure, when the device is lowered, the second roller 17 and the first roller 15 roll along the well wall, thereby improving the stability of the device being lowered and preventing the device from tilting.

[0025] like Figure 3 As shown, the positioning component 3 includes a connecting plate 31 and a top plate 32. The connecting plate 31 is fixedly connected to the outer wall of the central tube 2. An electric push rod 33 is symmetrically arranged between the connecting plate 31 and the top plate 32. The two ends of the electric push rod 33 are respectively fixedly connected to one side of the connecting plate 31 and one side of the top plate 32. The other side of the top plate 32 is provided with equidistantly distributed convex strips 34.

[0026] According to the above structure, when the device is lowered to the corresponding position, by extending the electric push rod 33, one side of the top plate 32 is pressed against the inner wall of the sewage well, so that the device is positioned at the corresponding position. The setting of the convex strip 34 can increase the friction between the outer wall of the top plate 32 and the well wall, thereby improving the stability of the device.

[0027] like Figure 4 and 5 As shown, the dredging component 4 includes a vertical steel pipe 41, which is rotatably connected to the through hole in the middle of the circular plate 11 through a bearing, and the bottom end of the vertical steel pipe 41 is fixedly connected to a horizontal steel pipe 42, and the bottom end of the horizontal steel pipe 42 is fixedly connected to short pipes 43 equidistantly distributed along the length direction of the horizontal steel pipe 42, and the top of one of the circular plates 11 is fixedly connected to a cover body 44, and a sealed bearing 45 is arranged inside the cover body 44, and the cover body 44 is rotatably connected to the top of the short pipe 43 through the sealed bearing 45, and the top of the cover body 44 is fixedly connected to a docking pipe 46, and the driving component 5 includes a reduction motor 51 and a first gear 52, the reduction motor 51 is fixedly connected to the inner wall of the center tube 2, the first gear 52 is fixedly sleeved on the outer wall of the vertical steel pipe 41, and the output shaft of the reduction motor 51 is fixedly sleeved with a second gear 53, and the second gear 53 is meshed with the first gear 52.

[0028] According to the above structure, during the dredging process, the docking pipe 46 is docked with the external pipe, and the external pipe is first connected to the sewage pump. The sewage pump absorbs sludge through the vertical steel pipe 41, and the sludge enters the horizontal steel pipe 42 through the short pipe 43 and enters the vertical steel pipe 41 through the horizontal steel pipe 42 to be sucked out. After absorbing a certain amount of sludge, the external pipe is connected to the water pump, and clean water is pumped into the vertical steel pipe 41 through the water pump. The clean water is sprayed through the short pipe 43 and the two ends of the horizontal steel pipe 42. While flushing and diluting the sludge, the well wall is flushed to facilitate the absorption of sludge. During the flushing process, the vertical steel pipe 41 is driven to rotate by the reduction motor 51, and then the horizontal steel pipe 42 is driven to rotate, so that the flushing is more uniform.

[0029] The working principle of the utility model is as follows: when in use, the device is lowered into the sewage well by a hanging rope. When the device is lowered, the second roller 17 and the first roller 15 roll along the well wall to improve the stability of the device and avoid the device from tilting. When the device is lowered to the corresponding position, the electric push rod 33 is extended to make one side of the top plate 32 close to the inner wall of the sewage well, so as to position the device at the corresponding position. The arrangement of the convex strip 34 can increase the friction between the outer wall of the top plate 32 and the well wall, thereby improving the stability of the device. During the dredging process, the butt joint 46 is connected to the external pipeline. , first connect the external pipeline to the sewage pump, the sewage pump absorbs sludge through the vertical steel pipe 41, the sludge enters the horizontal steel pipe 42 through the short pipe 43, and enters the vertical steel pipe 41 through the horizontal steel pipe 42 to be sucked out. After absorbing a certain amount of sludge, connect the external pipeline to the water pump, and pump clean water into the vertical steel pipe 41 through the water pump. The clean water is sprayed out through the short pipe 43 and the two ends of the horizontal steel pipe 42. While flushing and diluting the sludge, the well wall is flushed to facilitate the absorption of sludge. During the flushing process, the vertical steel pipe 41 is driven to rotate by the reduction motor 51, and then the horizontal steel pipe 42 is driven to rotate, so that the flushing is more uniform.

[0030] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A limited space desilting device, comprising a support frame (1) and a central tube (2), characterized in that: There are two supports (1), the central tube (2) is arranged between the two supports (1), and the two supports (1) are fixedly connected through the central tube (2), the outer wall of the central tube (2) is symmetrically provided with positioning components (3), a dredging component (4) is arranged inside the central tube (2), the dredging component (4) passes through the two supports (1), the dredging component (4) is rotatably connected to the two supports (1), and a driving component (5) for driving the dredging component (4) to rotate is arranged inside the central tube (2).

2. A limited space dredging device according to claim 1, characterized in that: The support frame (1) comprises a circular plate (11) and a circular ring (12), connecting rods (13) equidistantly distributed around the axis of the circular plate (11) are arranged between the circular plate (11) and the circular ring (12), the circular plate (11) and the circular ring (12) are fixedly connected via the connecting rods (13), and a through hole for mounting a dredging assembly (4) is arranged in the middle of the circular plate (11).

3. A limited space dredging device according to claim 2, characterized in that: The outer wall of the circular ring (12) is provided with a U-shaped plate (14) and a mounting frame (16); the interior of the U-shaped plate (14) is rotatably connected to a first roller (15); and both ends of the mounting frame (16) are rotatably connected to second rollers (17).

4. A limited space dredging device according to claim 3, characterized in that: The positioning component (3) comprises a connecting plate (31) and a top plate (32), wherein the connecting plate (31) is fixedly connected to the outer wall of the central tube (2), and an electric push rod (33) is symmetrically arranged between the connecting plate (31) and the top plate (32), and the two ends of the electric push rod (33) are respectively fixedly connected to one side of the connecting plate (31) and one side of the top plate (32), and the other side of the top plate (32) is provided with equidistantly distributed convex strips (34).

5. A limited space dredging device according to claim 4, characterized in that: The dredging assembly (4) comprises a vertical steel pipe (41), wherein the vertical steel pipe (41) is rotatably connected to a through hole in the middle of the circular plate (11) via a bearing, wherein the bottom end of the vertical steel pipe (41) is fixedly connected to a horizontal steel pipe (42), and the bottom end of the horizontal steel pipe (42) is fixedly connected to short pipes (43) equidistantly distributed along the length direction of the horizontal steel pipe (42).

6. A limited space dredging device according to claim 5, characterized in that: The top end of one of the circular plates (11) is fixedly connected to a cover body (44), a sealing bearing (45) is arranged inside the cover body (44), the cover body (44) is rotatably connected to the top end of the short tube (43) via the sealing bearing (45), and the top end of the cover body (44) is fixedly connected to a butt joint tube (46).

7. A limited space dredging device according to claim 6, characterized in that: The driving assembly (5) comprises a reduction motor (51) and a first gear (52), wherein the reduction motor (51) is fixedly connected to the inner wall of the central tube (2), the first gear (52) is fixedly sleeved on the outer wall of the vertical steel pipe (41), and the output shaft of the reduction motor (51) is fixedly sleeved with a second gear (53), and the second gear (53) is meshingly connected with the first gear (52).

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