CN215053396U - Pipe canal dredging device for hydroelectric engineering - Google Patents

Abstract

The utility model provides a pipe canal dredging device for hydroelectric engineering, which comprises two side frame plates and a combination plate, wherein the combination plate is fixedly arranged at the tops of the two side frame plates; the two transmission screw rods are rotatably arranged at the bottom of the combination plate; the first motor is fixedly installed at the top of the combination plate, and an output shaft of the first motor is fixedly connected with the top end of any one of the transmission lead screws; the two synchronous belt wheels are respectively and fixedly sleeved on the two transmission screw rods; the synchronous belt is sleeved on the two synchronous belt wheels; and the mud containing shovel box is arranged between the two side frame plates. The utility model provides a pipe canal desilting device for hydroelectric engineering has the pipe canal desilting work that can adapt to more width and be unfavorable, application scope is wider, and can improve the advantage of parking stability.

Description

Pipe canal dredging device for hydroelectric engineering

Technical Field

The utility model relates to a water and electricity engineering technical field especially relates to a pipe canal desilting device for water and electricity engineering.

Background

Water is a basic element that human beings rely on for survival, electric power is a main energy source for social development, and hydraulic and hydroelectric engineering regulates and utilizes water energy resources by engineering or non-engineering measures on the basis of research on natural characteristics of water. In the implementation process of hydroelectric engineering, a diversion system or a drainage system with small flow rate is generally used for conducting diversion or drainage on water passing buildings such as pre-buried pipe culverts or excavated diversion open channels. However, the natural water body of the reservoir contains more silt, and long-term operation can lead to more silt in the water-passing structure, at the moment, people can utilize the convenient dredging device to remove silt to be beneficial to normal operation of hydroelectric engineering.

However, when the conventional dredging device is used, it is found that since the respective widths of each pipe channel are different, the mud container for contacting with the inner wall of the pipe channel on the conventional dredging device cannot be adjusted correspondingly, which results in that the dredging device with a single specification is difficult to adapt to the dredging operation of the pipe channels with different widths, and the universal wheel for moving close to the conventional dredging device is difficult to reliably and stably stop the dredging device with heavier mass at a specified position when the conventional dredging device is placed on a slope surface with a certain angle, and even the possibility of landslide and toppling can occur.

Therefore, it is necessary to provide a dredging device for a pipe duct in hydropower engineering to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a can adapt to the not suitable canal desilting work of more width, application scope is wider, and can improve the canal desilting device for water and electricity engineering of parking stability.

In order to solve the technical problem, the utility model provides a pipe canal desilting device for hydroelectric engineering, include: two side frame plates; the combination plate is fixedly arranged at the tops of the two side frame plates; the two transmission screw rods are rotatably arranged at the bottom of the combination plate; the first motor is fixedly installed at the top of the combination plate, and an output shaft of the first motor is fixedly connected with the top end of any one of the transmission lead screws; the two synchronous belt wheels are respectively and fixedly sleeved on the two transmission screw rods; the synchronous belt is sleeved on the two synchronous belt wheels; the mud containing shovel box is arranged between the two side frame plates; the two linkage plates are respectively installed on the two transmission screw rods in a threaded manner, and are respectively connected with one side, close to the two side frame plates, of each linkage plate in a sliding manner; the two linking columns are respectively and fixedly installed at the bottoms of the two linkage plates, and the bottom ends of the two linking columns are fixedly connected with the mud shovel box; the lifting mechanism is arranged on the mud containing shovel box; and the surface expanding mechanism is arranged between the two side frame plates.

Preferably, the lifting mechanism comprises a back plate, a bearing plate, a threaded sleeve, an adjusting screw rod, a motor II and two bevel gears I, the back plate is fixedly mounted at the top of the mud shovel box, the bearing plate is fixedly mounted at one side of the back plate, the threaded sleeve is rotatably mounted at the top of the bearing plate, the adjusting screw rod is threadedly mounted in the threaded sleeve, the top end and the low end of the adjusting screw rod extend to the outside of the threaded sleeve, the motor II is fixedly mounted at the top of the bearing plate, one of the two bevel gears is respectively fixedly sleeved on an output shaft of the motor II and the threaded sleeve, and the two bevel gears I are meshed with each other.

Preferably, the face expanding mechanism comprises two expanding panels, a hollow sleeve, two hollow columns, a two-way screw rod, a rotating shaft and two bevel gears II, the two expanding panels are arranged between the two side frame plates and are positioned above the mud shovel box, the expanding panels are matched with the mud shovel box, the hollow sleeve is arranged between the two expanding panels, the two hollow columns are arranged on the inner wall of the hollow sleeve in a sliding manner, one ends, far away from each other, of the two hollow columns extend out of the hollow sleeve and are fixedly connected with the corresponding expanding panels, the two-way screw rod is arranged in the hollow sleeve, two ends of the two-way screw rod extend into the two hollow columns respectively, the two-way screw rod is in threaded connection with the inner wall of one side, close to each other, of the two hollow columns respectively, the rotating shaft is rotatably arranged on the inner wall of the hollow sleeve, the top end of the rotating shaft extends to the upper part of the hollow sleeve and is fixedly provided with a rotating wheel, two bevel gears II are respectively and fixedly sleeved on the bidirectional screw rod and the rotating shaft, and the two bevel gears are meshed with each other.

Preferably, two the equal fixed mounting in bottom of side frame board has the flat board, dull and stereotyped bottom fixed mounting has two universal wheels, two fixed mounting has same push rod on the side frame board, two the equal fixed mounting in one side that the side frame board is close to each other has a piece, two drive screw runs through two respectively a piece and with correspond a piece rotates and connects.

Preferably, the top of the combination plate is provided with a movable through hole, and the movable through hole is matched with the back plate and the bearing plate.

Preferably, a portal frame is fixedly installed at the bottom end of the adjusting screw rod, the bottom of the portal frame is fixedly connected with the hollow sleeve, and the top end of the rotating shaft is located in the portal frame.

Preferably, the top fixed mounting who adjusts the lead screw has the baffle, the baffle with swivel nut looks adaptation, slidable mounting has two slide bars, two on accepting the board the top of slide bar all with baffle fixed connection, the spacing piece of bottom fixed mounting of slide bar.

Preferably, a support plate is fixedly mounted on one side, away from each other, of each of the two side frame plates, a square column is slidably mounted on the support plate, two slots are formed in the square column, a panel is fixedly mounted at the bottom of the square column, a box body is fixedly mounted at the top of the support plate, an opening is formed in one side of the box body, sliding plates are slidably mounted on the inner wall of the top and the inner wall of the bottom of the box body, inserting columns are fixedly mounted on one side, away from the mud shovel box, of the sliding plates, inserting columns are fixedly mounted on one side, away from the mud shovel box, of the inserting columns extend into the corresponding slots, the inserting columns are matched with the slots, a pull rod is fixedly mounted on one side, close to the mud shovel box, of the sliding plates, one end, away from the sliding plates, of the pull rod extends out of the box body and is fixedly mounted with a pull ring I, and the pull rod is slidably connected with the inner wall of one side, close to the mud shovel box body, the pull rod is sleeved with a reset spring, one end of the reset spring is fixedly connected with the sliding plate, and the other end of the reset spring is fixedly connected with the inner wall of one side of the box body.

Preferably, the top of extension board has seted up square opening, the square column run through square opening and with the inner wall sliding connection of square opening, the top fixed mounting of square column has pull ring two, fixed mounting has the spacing ring on the square column, the spacing ring with square opening looks adaptation.

Preferably, a plurality of retention cones are fixedly mounted at the bottom of the panel.

Compared with the prior art, the utility model provides a pipe canal desilting device for hydroelectric engineering has following beneficial effect:

the utility model provides a pipe canal desilting device for hydroelectric engineering, through two expanding panels which can be adjusted horizontally and can also be changed vertically and a mud loading shovel box which can be adjusted vertically and maximally and highly, the device can adapt to more pipe canal desilting works with different widths and sizes, greatly improves the application range and has better practical use effect;

when the device is parked at a slope with a certain angle, the fixing conical head is arranged on the device, so that the device has a reinforcing mode under the braking of the universal wheel, and the stability of the device is further improved.

Drawings

FIG. 1 is a schematic front view of a first embodiment of a dredging device for a canal used in hydroelectric engineering according to the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic cross-sectional structural view of a linkage plate and a transmission screw in the first embodiment of the canal dredging device for hydroelectric engineering provided by the present invention;

FIG. 4 is a schematic side view of a mud shovel box in the first embodiment of the canal dredging device for hydroelectric power engineering according to the present invention;

fig. 5 is a schematic view of the top connection structure of the lever expansion panel and the hollow sleeve in the first embodiment of the canal dredging device for hydroelectric engineering provided by the present invention;

FIG. 6 is a schematic front view of a second embodiment of a dredging device for a canal used in hydroelectric power engineering;

fig. 7 is an enlarged structural view of a portion B shown in fig. 6.

Reference numbers in the figures: 1. a side frame plate; 2. a combination board; 3. a drive screw; 4. a first motor; 5. a synchronous pulley; 6. a synchronous belt; 7. loading a mud shovel box; 8. a linkage plate; 9. connecting the column; 10. a back plate; 11. a bearing plate; 12. a threaded sleeve; 13. adjusting the lead screw; 14. a second motor; 15. a first bevel gear; 16. expanding a panel; 17. a hollow sleeve; 18. a hollow column; 19. a bidirectional lead screw; 20. a rotating shaft; 21. a second bevel gear; 22. a support plate; 23. a square column; 24. a slot; 25. a panel; 26. a box body; 27. a slide plate; 28. inserting a column; 29. a pull rod; 30. and a reset spring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

First embodiment

Referring to fig. 1 to 5, in a first embodiment of the present invention, a dredging device for a conduit for hydroelectric power engineering comprises: two side frame plates 1; the combination plate 2 is fixedly arranged at the tops of the two side frame plates 1; the two transmission screw rods 3 are rotatably arranged at the bottom of the combination plate 2, and the two transmission screw rods 3 can enable the two linkage plates 8 to ascend or descend simultaneously; the motor I4 is fixedly installed at the top of the combination plate 2, and an output shaft of the motor I4 is fixedly connected with the top end of any one of the transmission lead screws 3; the two synchronous belt wheels 5 are respectively and fixedly sleeved on the two transmission screw rods 3; the synchronous belt 6 is sleeved on the two synchronous belt wheels 5; the mud shovel box 7 is arranged between the two side frame plates 1, and the opening side of the mud shovel box 7 is in a bevel edge chamfer type, so that mud in a pipe canal can be conveniently shoveled into the mud shovel box; the two linkage plates 8 are respectively installed on the two transmission screw rods 3 in a threaded manner, and the two linkage plates 8 are respectively connected with one sides, close to the two side frame plates 1, of the two side frame plates in a sliding manner; the two connecting columns 9 are respectively and fixedly arranged at the bottoms of the two linkage plates 8, the bottom ends of the two connecting columns 9 are fixedly connected with the mud shovel box 7, and the mud shovel box 7 is reliably fixed by the connecting columns 9; the lifting mechanism is arranged on the mud containing shovel box 7; and the surface expanding mechanism is arranged between the two side frame plates 1.

In order to enable the face expanding plate 16 to ascend or descend, in this embodiment, it is preferable that the lifting mechanism includes a back plate 10, a receiving plate 11, a screw sleeve 12, an adjusting screw 13, a second motor 14, and two first bevel gears 15, the back plate 10 is fixedly installed at the top of the mud shovel box 7, the receiving plate 11 is fixedly installed at one side of the back plate 10, the screw sleeve 12 is rotatably installed at the top of the receiving plate 11, the adjusting screw 13 is threadedly installed in the screw sleeve 12, both the top end and the bottom end of the adjusting screw 13 extend out of the screw sleeve 12, the adjusting screw 13 can be lifted and lowered by generating a threaded relationship between the adjusting screw 13 and the screw sleeve 12 and limiting the position of the sliding rod, the second motor 14 is fixedly installed at the top of the receiving plate 11, and the two first bevel gears 15 are respectively fixedly sleeved on the output shaft of the second motor 14 and the screw sleeve 12, the two first bevel gears 15 are meshed with each other, and the threaded sleeve 12 can be rotated by the meshing of the two first bevel gears 15.

In order to increase the dredging width, in this embodiment, it is preferable that the face enlarging mechanism includes two face enlarging plates 16, a hollow sleeve 17, two hollow columns 18, a bidirectional screw rod 19, a rotating shaft 20 and two bevel gears 21, the two face enlarging plates 16 are both disposed between the two side frame plates 1, the face enlarging plates 16 are located above the mud shovel box 7, the face enlarging plates 16 are adapted to the mud shovel box 7, the width range of dredging can be increased by using the face enlarging plates 16 adapted to the mud shovel box 7, the hollow sleeve 17 is disposed between the two face enlarging plates 16, the two hollow columns 18 are both slidably mounted on the inner wall of the hollow sleeve 17, the ends of the two hollow columns 18 far away from each other both extend out of the hollow sleeve 17 and are fixedly connected with the corresponding face enlarging plates 16, the hollow columns 18 can carry the two face enlarging plates 16 to move away from or close to each other, with the increase or reduce the desilting width, two-way lead screw 19 sets up in the hollow cover 17, two-way lead screw 19's both ends extend to two respectively in the hollow post 18, just two-way lead screw 19 respectively with two one side inner wall threaded connection that hollow post 18 is close to each other, pivot 20 rotates to be installed on the inner wall of hollow cover 17, the top of pivot 20 extends to hollow cover 17's top and fixed mounting has the runner, two 21 fixed the cover of umbrella tooth are established respectively two-way lead screw 19 with on the pivot 20, two 21 meshes of umbrella tooth mutually, through the meshing of two 21 of two umbrella teeth, can make two-way lead screw 19 rotate.

In order to facilitate the movement of the device and provide an end support for the driving screw 3, in this embodiment, preferably, the bottom of each of the two side frame plates 1 is fixedly provided with a flat plate, the bottom of the flat plate is fixedly provided with two universal wheels, the two side frame plates 1 are fixedly provided with the same push rod, one side of each of the two side frame plates 1 close to each other is fixedly provided with a support block, and the two driving screws 3 respectively penetrate through the two support blocks and are rotatably connected with the corresponding support blocks.

In order to provide a movable space for the back plate 10 and the receiving plate 11, in this embodiment, it is preferable that a movable through hole is formed at the top of the combination plate 2, and the movable through hole is matched with both the back plate 10 and the receiving plate 11.

In order to fix the adjusting screw 13 and the hollow sleeve 17, in this embodiment, it is preferable that a gantry is fixedly installed at a bottom end of the adjusting screw 13, a bottom of the gantry is fixedly connected to the hollow sleeve 17, and a top end of the rotating shaft 20 is located in the gantry.

In order to provide a spacing for adjusting the lead screw 13, make it only carry out the removal in upper and lower position, in this embodiment, it is preferred that, adjusting the top fixed mounting of lead screw 13 has the baffle, the baffle with swivel nut 12 looks adaptation, slidable mounting has two slide bars on the board 11 of accepting, two the top of slide bar all with baffle fixed connection, the bottom fixed mounting spacing piece of slide bar.

The utility model provides a water and electricity is canal desilting device for engineering's theory of operation as follows:

when dredging, a motor I4 is started in a forward direction, an output shaft of the motor I4 drives the corresponding transmission lead screws 3 to rotate, at the moment, the other two transmission lead screws 3 rotate simultaneously through the transmission action of a synchronous belt wheel 5 and a synchronous belt 6, at the moment, the linkage plate 8 descends through the thread action of the linkage plate 8 and the transmission lead screws 3, and under the sliding limit of the linkage plate 8 and the side frame plate 1, so that the mud loading shovel box 7 descends under the connection of the connecting column 9 until the mud loading shovel box 7 descends to the lowest position of the pipe channel, the mud loading shovel box 7 is convenient for the contact of the inner wall of the pipe channel, then the device is pushed, dredging work can be carried out, and mud can enter the mud loading shovel box 7 until dredging is finished;

when a wider pipe canal needs to be desilted at a later stage, the mud containing shovel box 7 is brought into the pipe canal through the steps, at the moment, the mud containing shovel box 7 is only contacted with the inner wall at the bottom of the pipe canal and is separated from the inner walls at two sides of the pipe canal, then the motor II 14 is started in a positive direction, the screw sleeve 12 starts to rotate through the meshing transmission between the two bevel gears I15, at the moment, the screw relationship between the screw rod 13 and the screw sleeve 12 is adjusted, the screw rod 13 is adjusted to drive the portal frame to descend under the sliding limit of the slide rod, so that the whole surface expanding mechanism is driven to descend, until the surface expanding plate 16 is also contacted with the inner wall at the bottom of the pipe canal, the rotating wheel is rotated clockwise, the rotating shaft 20 is driven to rotate, at the moment, the bidirectional screw rod 19 starts to rotate through the meshing of the two bevel gears 21, the threaded relationship between the hollow column 18 and the bidirectional screw rod 19 is added with the sliding relationship between the hollow column 18 and the inner wall of the hollow sleeve 17, two hollow columns 18 just keep away from each other, so alright make two expand panel 16 keep away from each other, until two expand panel 16 contact the canal both sides inner wall after, expand panel 16 this moment and throw away the opening side contact that will adorn mud shovel case 7, then alright carry out subsequent desilting work, until the desilting finishes.

Compared with the prior art, the utility model provides a pipe canal desilting device for hydroelectric engineering has following beneficial effect:

through two that set up both can horizontal position control, the expand panel 16 of position change about can going on again to and the dress mud shovel case 7 of the high position adjustment of maximum about can going on, make this device can adapt to more different pipe canal desilting work of width size, very big improvement application scope, the in-service use effect is better.

Second embodiment:

based on the canal dredging device for the hydroelectric engineering that the first embodiment of this application provided, the second embodiment of this application provides another kind of canal dredging device for the hydroelectric engineering. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.

Referring to fig. 6-7, the dredging device for pipe canal in hydroelectric engineering further includes two support plates 22, the two support plates 22 are respectively and fixedly installed on one side of the two side frame plates 1 away from each other, a square column 23 is installed on the support plates 22 in a sliding manner, two slots 24 are opened on the square column 23, the square column 23 can be reliably clamped through the matching of the slots 24 and the slots 28, a panel 25 is fixedly installed at the bottom of the square column 23, a box 26 is fixedly installed at the top of the support plates 22, an opening is formed at one side of the box 26, sliding plates 27 are installed on the inner wall of the top and the inner wall of the bottom of the box 26 in a sliding manner, the slots 28 are fixedly installed at one side of the sliding plates 27 away from the mud containing shovel box 7, one side of the slots 28 away from the mud containing shovel box 7 extends into the corresponding slots 24, and the slots 28 are matched with the slots 24, slide 27 is close to one side fixed mounting of dress mud shovel case 7 has the extension pole 29, the extension pole 29 is kept away from the one end of slide 27 extends to box body 26 is outer and fixed mounting has pull ring one, just the extension pole 29 with box body 26 is close to one side inner wall sliding connection of dress mud shovel case 7, the extension pole 29 plays and connects slide 27 to make its effect that can move along with the pulling of extension pole 29, the cover is equipped with reset spring 30 on the extension pole 29, reset spring 30's one end with slide 27 fixed connection, reset spring 30's the other end with one side inner wall fixed connection of box body 26, reset spring 30 provides a resilience force of slide 27.

In order to make the square column 23 slide more smoothly on the support plate 22, in this embodiment, preferably, a square through opening is opened at the top of the support plate 22, the square column 23 runs through the square through opening and is connected with the inner wall of the square through opening in a sliding manner, a pull ring two is fixedly installed at the top of the square column 23, a limit ring is fixedly installed on the square column 23, and the limit ring is matched with the square through opening.

In order to enhance the stability when parking, in the present embodiment, it is preferable that a plurality of retention cones are fixedly installed at the bottom of the panel 25.

When this device is parked in the slope department that has certain angle, through the maintenance awl head that sets up on 25, make this device except under the braking of universal wheel self, one reinforcing mode in addition, thereby the stability of this device has further been improved, and, later stage is when removing this device, only need to pull two pull rings one toward the direction that is close to each other, make two slides 27 be close to each other, until will inserting post 28 and pull out slot 24, reset spring 30 this moment is in compression state, then up mention pull ring two, mention square column 23 with panel 25 jointly, until after spacing ring contacts the bottom of extension board 22, loosen pull ring one, under the effect of reset spring 30, insert post 28 just automatic insertion is located the slot 24 of below, then alright easily promote this device, high durability and convenient use.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a pipe canal desilting device for hydroelectric engineering which characterized in that includes:

two side frame plates;

the combination plate is fixedly arranged at the tops of the two side frame plates;

the two transmission screw rods are rotatably arranged at the bottom of the combination plate;

the first motor is fixedly installed at the top of the combination plate, and an output shaft of the first motor is fixedly connected with the top end of any one of the transmission lead screws;

the two synchronous belt wheels are respectively and fixedly sleeved on the two transmission screw rods;

the synchronous belt is sleeved on the two synchronous belt wheels;

the mud containing shovel box is arranged between the two side frame plates;

the two linkage plates are respectively installed on the two transmission screw rods in a threaded manner, and are respectively connected with one side, close to the two side frame plates, of each linkage plate in a sliding manner;

the two linking columns are respectively and fixedly installed at the bottoms of the two linkage plates, and the bottom ends of the two linking columns are fixedly connected with the mud shovel box;

the lifting mechanism is arranged on the mud containing shovel box;

and the surface expanding mechanism is arranged between the two side frame plates.

2. The utility model provides a pipe canal desilting device for hydroelectric engineering, a serial communication port, elevating system includes the backplate, accepts board, swivel nut, regulation lead screw, motor two and two bevel gear one, backplate fixed mounting be in the top of dress mud shovel case, accept board fixed mounting be in one side of backplate, the swivel nut rotates to be installed accept the top of board, it installs to adjust the lead screw thread in the swivel nut, the top of adjusting the lead screw all extends to with the low side outside the swivel nut, two fixed mounting of motor are in accept the top of board, two a fixed cover respectively of bevel gear is established the output shaft of motor two with on the swivel nut, two one meshes mutually of bevel gear.

3. The canal dredging device for hydroelectric engineering according to claim 2, wherein the face expanding mechanism comprises two expanding panels, a hollow sleeve, two hollow columns, a bidirectional screw rod, a rotating shaft and two umbrella teeth II, the two expanding panels are arranged between the two side frame plates and are positioned above the mud shovel box, the expanding panels are matched with the mud shovel box, the hollow sleeve is arranged between the two expanding panels, the two hollow columns are slidably mounted on the inner wall of the hollow sleeve, one ends of the two hollow columns, which are far away from each other, extend to the outside of the hollow sleeve and are fixedly connected with the corresponding expanding panels, the bidirectional screw rod is arranged in the hollow sleeve, the two ends of the bidirectional screw rod extend into the two hollow columns respectively, and the bidirectional screw rod is in threaded connection with the inner wall of one side, which is close to the two hollow columns, the rotating shaft is rotatably installed on the inner wall of the hollow sleeve, the top end of the rotating shaft extends to the upper portion of the hollow sleeve, the rotating wheel is fixedly installed on the upper portion of the hollow sleeve, the two bevel gears are respectively fixedly sleeved on the two-way screw rod and the rotating shaft, and the two bevel gears are meshed with each other.

4. The pipe canal dredging device for hydropower engineering according to claim 1, wherein the bottom of the two side frame plates is fixedly provided with a flat plate, the bottom of the flat plate is fixedly provided with two universal wheels, the two side frame plates are fixedly provided with the same push rod, one side of each side frame plate close to each other is fixedly provided with a support block, and the two transmission screw rods respectively penetrate through the two support blocks and are rotatably connected with the corresponding support blocks.

5. The pipe canal dredging device for hydropower engineering as claimed in claim 2, wherein a movable through opening is formed in the top of the combination plate, and the movable through opening is matched with the back plate and the bearing plate.

6. The pipe canal dredging device for hydroelectric engineering according to claim 3, wherein a portal frame is fixedly installed at the bottom end of the adjusting screw rod, the bottom of the portal frame is fixedly connected with the hollow sleeve, and the top end of the rotating shaft is located in the portal frame.

7. The pipe canal dredging device for hydroelectric engineering according to claim 2, wherein the top end of the adjusting screw rod is fixedly provided with a baffle, the baffle is matched with the threaded sleeve, the bearing plate is provided with two sliding rods in a sliding manner, the top ends of the sliding rods are fixedly connected with the baffle, and the bottom ends of the sliding rods are fixedly provided with limiting pieces.

8. The pipe canal dredging device for hydropower engineering according to claim 1, wherein a support plate is fixedly mounted on each far side of the two side frame plates, a square column is slidably mounted on the support plate, two slots are formed in the square column, a panel is fixedly mounted at the bottom of the square column, a box body is fixedly mounted at the top of the support plate, one side of the box body is provided with an opening, sliding plates are slidably mounted on the inner wall of the top and the inner wall of the bottom of the box body, inserting columns are fixedly mounted on the far side of the sliding plate away from the mud shovel box, one far side of the inserting columns away from the mud shovel box extends into the corresponding slots, the inserting columns are matched with the slots, a pull rod is fixedly mounted on one near side of the mud shovel box, one far side of the pull rod extends out of the box body and is fixedly mounted with a pull ring I, and the draw bar and the box body are close to the sliding connection of the inner wall of one side of the mud containing shovel box, a reset spring is sleeved on the draw bar, one end of the reset spring is fixedly connected with the sliding plate, and the other end of the reset spring is fixedly connected with the inner wall of one side of the box body.

9. The pipe canal dredging device for hydropower engineering of claim 8, wherein a square opening is formed in the top of the support plate, the square column penetrates through the square opening and is in sliding connection with the inner wall of the square opening, a pull ring II is fixedly mounted on the top of the square column, a limit ring is fixedly mounted on the square column, and the limit ring is matched with the square opening.

10. A hydroelectric engineering pipe canal dredging device as claimed in claim 8, wherein a plurality of retention conical heads are fixedly mounted at the bottom of the panel.

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