Earthwork backfilling device and method for water conservancy construction

Abstract

The earthwork backfilling device comprises a land, a foundation pit is excavated in the top end of the land, a pipeline is buried in the foundation pit, a backfilling vehicle is arranged at the top of the land, and earth cutting mechanisms are installed on the front side and the rear side of the backfilling vehicle correspondingly and used for digging backfilled earth. Through cooperative use of the earth cutting mechanism and the backfilling mechanism, screening and backfilling of backfilled earth are achieved, the two sides of the pipeline are compacted through the first compacting mechanism, the positioning mechanism avoids position deviation of the pipeline during backfilling, backfilling and compacting can be synchronously conducted on the two sides of the pipeline, the backfilling efficiency is improved, and the working efficiency is improved. By replacing the filter plate, the specification of backfill soil meets the backfill specification, the requirements of workers are met, a warning tape can be automatically laid in the foundation pit, workers do not need to enter the pit for operation, convenience and rapidness are achieved, and application and popularization in actual backfill are facilitated.

Description

Technical Field

[0001] The invention relates to the field of water conservancy construction, and in particular to an earth backfilling device and method for water conservancy construction. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. In urban water supply and drainage construction and water conservancy construction, it is necessary to lay pipes to achieve the allocation of natural surface water and groundwater, prevent floods and disasters, and thus meet people's domestic water needs.

[0003] Chinese patent CN116378066A discloses an earth backfilling device for water conservancy construction, including an outer shell, the interior of the outer shell is a cavity structure, a control panel is installed on the front end face of the outer shell, a positioning mechanism for preventing pipeline deviation and changing the driving trajectory of the device is installed on the right side of the inner shell, a fixing frame is installed on the upper end face of the outer shell, a screening mechanism for screening earth is installed inside the fixing frame, a first baffle is symmetrically installed below the screening mechanism to gather the screened earth, a second baffle is installed below the first baffle to buffer the earth, a laser rangefinder for monitoring the depth of the earth is installed at the center of the lower end face of the second baffle, and a compacting mechanism for compacting the soil sample and advancing the device is installed on the left side of the inner shell. The present invention has the advantages of being able to perform multi-stage screening of the soil to achieve fine soil at the bottom and soil blocks at the top, and being able to fix the pipeline and position the device at the same time.

[0004] In real life, when backfilling, warning lines need to be buried to avoid damage to pipelines due to subsequent excavation. The traditional method of burying requires workers to enter the pit to operate, which poses certain safety hazards and is difficult to meet the needs of workers. The device in the above patent is also unable to automatically bury warning lines and has low practicality. Summary of the invention

[0005] In order to solve the above technical problems, a device and method for backfilling earth for water conservancy construction are provided. The technical solution solves the problem raised in the above background technology that in real life, in order to avoid damage to pipelines by subsequent excavation during backfilling, it is necessary to bury warning lines. The traditional burying method requires workers to enter the pit to operate, which has certain safety hazards and is difficult to meet the needs of staff. The device in the above patent is also unable to automatically bury the warning line and has low practicality.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: A soil backfill device for water conservancy construction comprises land, a foundation pit is excavated on the top of the land, a pipeline is buried in the foundation pit, a backfill vehicle is arranged on the top of the land, digging mechanisms are installed on the front and rear sides of the backfill vehicle, the digging mechanisms are used to dig backfill soil, the left top of the backfill vehicle is connected to the backfill mechanism, the backfill mechanism is used to backfill the inside of the foundation pit, and a positioning mechanism is installed in the middle of the backfill vehicle, the positioning mechanism is used to prevent the pipeline from shifting in position, a first compacting mechanism and a second compacting mechanism are respectively arranged on both sides of the positioning mechanism, the first compacting mechanism is used to compact the backfill soil on both sides of the pipeline, and the second compacting mechanism is used to compact the backfill soil above the pipeline, and a belt-laying mechanism is also connected to the outer bottom of the backfill vehicle, the belt-laying mechanism is used to lay a warning tape inside the foundation pit.

[0007] Preferably, the digging mechanism includes a first sleeve and a telescopic member, the first sleeve is slidably connected to the inside of the second sleeve, the second sleeve is slidably connected to the inside of the third sleeve, the third sleeve is slidably connected to the inside of the fourth sleeve, a connecting frame is welded to the outer end of the fourth sleeve, the connecting frame is internally rotatably connected to the first screw rod, the outer surface of the first screw rod is threadedly connected to the lifting frame, the lifting frame is internally rotatably connected to the shaft, the outer surface of the shaft is connected to a bucket, a first driving motor for driving the shaft to rotate is installed on the outside of the lifting frame, and two groups of first guide rods are fixedly installed inside the connecting frame, the lifting frame is slidably connected to the first guide rod, a first stepper motor is fixedly installed on the top of the connecting frame, and the top of the first screw rod is fixedly connected to the output end of the first stepper motor.

[0008] Preferably, a second stepper motor is installed on the inner wall of the first sleeve, and the output end of the second stepper motor is fixedly connected to the second screw rod, a mounting plate is welded inside the first sleeve, the other end of the second screw rod is rotatably connected to the inside of the mounting plate, and the first sleeve is also rotatably connected to the first connecting arm and the second connecting arm, and the fourth sleeve is rotatably connected to the third connecting arm and the fourth connecting arm, one end of one side of the telescopic member is rotatably connected to the first connecting arm and the second connecting arm respectively, and the other end of the other side of the telescopic member is rotatably connected to the third connecting arm and the fourth connecting arm respectively, a moving block is threadedly connected to the outer surface of the second screw rod, and the moving block is connected to the telescopic member, and a limiting slide groove is provided inside the second sleeve and the third sleeve, and a limiting slide rod matched with the limiting slide groove is installed on the telescopic member, and the limiting slide rod is slidably connected to the limiting slide groove.

[0009] Preferably, the backfilling mechanism includes a mounting frame, a first screw, a first movable plate and a second movable plate, the mounting frame is welded to the left top of the backfilling vehicle, the first screw is rotatably connected to the inside of the mounting frame, the threads opened at both ends of the first screw have opposite rotation directions, and the first movable plate and the second movable plate are respectively threadedly connected to the two ends of the outer surface of the first screw, a first servo motor is arranged on the outside of the mounting frame, one end of the first screw is fixedly connected to the output end of the first servo motor, a second guide rod is also welded to the inside of the mounting frame, the first movable plate and the second movable plate are both slidably connected to the second guide rod, and the tops of the first movable plate and the second movable plate are both fixedly connected to the first electric lifting rod, the output ends of the two groups of the first electric lifting rods are both fixedly connected to the backfilling box, and an inclined filter plate is installed inside the backfilling box.

[0010] Preferably, the top and bottom of the backfill box are provided with opening and closing mechanisms, inclined plates are provided on both sides of the bottom end of the backfill box, the outer side of the backfill box is rotatably connected to a rotating rod, a box door is fixedly installed on the outer surface of the rotating rod, a second driving motor for driving the rotating rod to rotate is installed on the top of the backfill box, and a card slot is opened through the middle part of the outer end of the filter plate, the outer side of the backfill box is connected to a card block through a telescopic sleeve rod, the outer side of the telescopic sleeve rod is provided with a spring, and the card block is adapted to the card slot.

[0011] Preferably, the opening and closing mechanism includes a fixed block, a top cover and a bottom cover, the top and bottom of the backfill box are fixedly connected with two groups of fixed blocks, the inside of the two groups of the fixed blocks are rotatably connected with a second screw, and a third guide rod is welded between the two groups of the fixed blocks, and two groups of the top cover and the bottom cover are each provided with a screw threadedly connected to the two ends of the outer surface of the second screw on the upper side, and the two groups of the bottom cover are respectively threadedly connected to the two ends of the outer surface of the second screw on the lower side, one end of the second screw is fixedly connected to the output end of the second servo motor, and the second servo motor is fixedly mounted on the outside of the fixed block.

[0012] Preferably, the positioning mechanism includes a third screw and a fourth guide rod, the third screw being rotatably connected to the inside of the backfilling vehicle, the fourth guide rod being fixedly connected to the inside of the backfilling vehicle, the threads opened at both ends of the third screw having opposite rotation directions, and both ends of the outer surface of the third screw being threadedly connected to a first movable block, a first electric push rod being fixedly installed at the bottom of the first movable block, an output end of the first electric push rod being fixedly connected to the frame, a rotating part being rotatably connected to the inside of the frame, and a roller being rotatably connected to the inside of the rotating part, a third drive motor for driving the rotating part to rotate is provided on the outside of the frame, a third servo motor is installed on the outside of the backfilling vehicle, and an output end of the third servo motor extends into the backfilling vehicle and is fixedly connected to one end of the third screw.

[0013] Preferably, the first compacting mechanism includes a fourth screw and two groups of second movable blocks. The fourth screw is rotatably connected inside the backfilling vehicle. A fifth guide rod is also fixedly installed inside the backfilling vehicle. The threads at both ends of the fourth screw have opposite rotation directions. The two groups of the second movable blocks are respectively threadedly connected to the two ends of the outer surface of the fourth screw. The second movable block is slidably connected to the fifth guide rod, and one end of the fourth screw is fixedly installed on the output end of the fourth servo motor. The fourth servo motor is installed on the outside of the backfilling vehicle. A second electric push rod is installed on the bottom of the two groups of the second movable blocks, and the output end of the second electric push rod is fixedly connected to the first compacting plate.

[0014] Preferably, the second compacting mechanism includes a sixth guide rod, the sixth guide rod is fixedly connected to the interior of the backfilling vehicle, the interior of the backfilling vehicle is also rotatably connected to a third screw rod, the outer surface of the sixth guide rod is slidably connected to a movable part, the movable part is threadedly connected to the sixth guide rod, a third stepping motor for driving the third screw rod to rotate is also provided on the outside of the backfilling vehicle, and a third electric push rod is fixedly installed on the bottom of the movable part, and the output end of the third electric push rod is fixedly connected to the second compacting plate.

[0015] Preferably, the belt laying mechanism includes a mounting piece, which is welded to the outer bottom of the backfill vehicle, a second electric lifting rod is arranged on the top of the mounting piece, a frame is arranged below the mounting piece, the interior of the frame is rotatably connected to a belt winding wheel, slots are provided on both sides of the top of the frame, a plug plate is inserted in the slot, a second electric telescopic rod is fixedly connected to the outer side of the plug plate, the output end of the second electric telescopic rod is fixedly connected to the mounting block, a drill bit is rotatably connected to the interior of the mounting block, a drilling motor for driving the drill bit to rotate is arranged on the outer side of the mounting block, and a first electric telescopic rod is installed on the outer side of the frame, a positioning block is installed on the output end of the first electric telescopic rod, a positioning groove matched with the positioning block is penetrated on the plug plate, and a third electric telescopic rod and a fourth electric telescopic rod are respectively connected to the tops of both sides of the frame, a pressing groove is provided inside the frame, a pressing block matched with the pressing groove is fixedly connected to the output end of the third electric telescopic rod, and the output end of the fourth electric telescopic rod is fixedly connected to the cutting head.

[0016] A method for backfilling earthwork for water conservancy construction, comprising: S1, the digging mechanism digs the backfill soil and transfers the backfill soil to the backfill box; S2, the backfilling mechanism screens the backfill soil inside the backfill box and fills the backfill soil on both sides of the pipeline. The positioning mechanism positions the pipeline, and then the first compacting mechanism compacts until the backfill soil completely covers the pipeline; S3, replace the filter plate, repeat the above steps to screen and backfill, and compact by the second compacting mechanism, and backfill and compact to a position of 500mm above the top of the pipeline; S4. The tape laying mechanism lays the warning tape at a position 500mm above the top of the pipeline; S5. Continue to replace the filter plate and repeat the above steps to perform screening and backfilling. The backfill is also compacted by the second compacting mechanism until it is flush with the land surface.

[0017] Compared with the prior art, the present invention provides an earth backfilling device and method for water conservancy construction, which has the following beneficial effects: The present invention achieves screening and backfilling of backfill soil through the coordinated use of an excavation mechanism and a backfill mechanism, compacts both sides of the pipeline through a first compacting mechanism, and a positioning mechanism prevents the pipeline from positionally shifting during backfilling, and can simultaneously backfill and compact both sides of the pipeline, thereby accelerating the backfilling efficiency. By replacing the filter plate, the backfill soil specifications meet the backfilling specifications, meeting the needs of the staff, and can automatically lay a warning tape in the foundation pit without the need for workers to enter the pit for operation, which is convenient and quick. The present invention is conducive to being promoted and used in actual backfilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 It is a structural schematic diagram of the backfill vehicle in the present invention; Figure 4 It is a structural schematic diagram of the backfill vehicle in the present invention from another perspective; Figure 5 It is a structural schematic diagram of the digging mechanism in the present invention; Figure 6 Schematic diagram of the internal structure of the first sleeve, the second sleeve, the third sleeve and the fourth sleeve in the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the proposed enlarged structure at A; Figure 8 It is a structural schematic diagram of the backfilling mechanism in the present invention; Fig. 9 It is a structural schematic diagram of the backfill box in the present invention; Fig.10 It is a structural schematic diagram of the backfill box in the present invention from another perspective; Fig.11 It is a schematic diagram of the internal structure of the backfill box in the present invention; Fig.12 It is a structural schematic diagram of the positioning mechanism in the present invention; Fig.13 is a structural schematic diagram of the first compacting mechanism in the present invention; Fig.14 is a schematic structural diagram of the second compacting mechanism in the present invention; Fig.15 It is a structural schematic diagram of the tape laying mechanism in the present invention; Fig.16 It is a structural schematic diagram of the tape laying mechanism in the present invention from another perspective.

[0019] The numbers in the figure are: 1. Land; 101. Foundation pit; 102. Pipeline; 103. Backfill vehicle; 2. Digging mechanism; 201. First sleeve; 202. Second sleeve; 203. Third sleeve; 204. Fourth sleeve; 205. Connecting frame; 206. First screw rod; 207. First guide rod; 208. First stepping motor; 209. Lifting frame; 210. Rotating shaft; 211. Digging bucket; 212. First driving motor; 213. Second stepping motor; 214. Mounting plate; 215. Second screw rod; 216. Moving block; 217. First connecting arm; 218. Second connecting arm; 219. Third connecting arm; 220. Fourth connecting arm; 221. Telescopic member; 222. Limiting slide groove; 223. Limiting slide rod; 3. Backfilling mechanism; 301. Mounting frame; 302. First screw rod; 303. Second guide rod; 304. First servo motor; 305. First movable plate; 306. Second movable plate; 307. First electric lifting rod; 308. Backfilling box; 309. Filter plate; 310. Rotating rod; 311. Box door; 312. Second drive motor; 313. Inclined plate; 314. Spring; 315. Block; 316. Telescopic sleeve rod; 317. Slot; 4. Opening and closing mechanism; 401. fixing block; 402. second screw rod; 403. third guide rod; 404. second servo motor; 405. top cover; 406. bottom cover; 5. Positioning mechanism; 501. third screw rod; 502. fourth guide rod; 503. third servo motor; 504. first movable block; 505. first electric push rod; 506. frame; 507. rotating member; 508. third drive motor; 509. roller; 6. First compacting mechanism; 601. Fourth screw rod; 602. Fifth guide rod; 603. Fourth servo motor; 604. Second movable block; 605. Second electric push rod; 606. First compacting plate; 7. Second compacting mechanism; 701. Third screw rod; 702. Sixth guide rod; 703. Third stepping motor; 704. Moving part; 705. Third electric push rod; 706. Second compacting plate; 8. Belt laying mechanism; 801. Mounting part; 802. Second electric lifting rod; 803. Frame; 804. Belt winding wheel; 805. Slot; 806. Insert plate; 807. Positioning slot; 808. First electric telescopic rod; 809. Second electric telescopic rod; 810. Mounting block; 811. Drilling motor; 812. Drill bit; 813. Third electric telescopic rod; 814. Pressing groove; 815. Fourth electric telescopic rod; 816. Cutting head. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations. Example

[0021] Please refer to Figure 1-Figure 16 As shown, a soil backfilling device for water conservancy construction includes land 1, a foundation pit 101 is excavated on the top of the land 1, a pipeline 102 is buried in the foundation pit 101, a backfilling vehicle 103 is arranged on the top of the land 1, and digging mechanisms 2 are installed on the front and rear sides of the backfilling vehicle 103, and the digging mechanism 2 is used to dig backfill soil. The left top of the backfilling vehicle 103 is connected to a backfilling mechanism 3, and the backfilling mechanism 3 is used to backfill the inside of the foundation pit 101, and a positioning mechanism 5 is installed in the middle of the backfilling vehicle 103, and the positioning mechanism 5 is used to prevent the pipeline 102 from shifting in position. A first compacting mechanism 6 and a second compacting mechanism 7 are respectively arranged on both sides of the positioning mechanism 5, and the first compacting mechanism 6 is used to compact the backfill soil on both sides of the pipeline 102, and the second compacting mechanism 7 is used to compact the backfill soil above the pipeline 102, and a belt laying mechanism 8 is also connected to the outer bottom of the backfilling vehicle 103, and the belt laying mechanism 8 is used to lay a warning belt inside the foundation pit 101. Example

[0022] Please refer to Figure 5As shown, the digging mechanism 2 includes a first sleeve 201 and a telescopic member 221, the first sleeve 201 is slidably connected to the second sleeve 202, the second sleeve 202 is slidably connected to the third sleeve 203, the third sleeve 203 is slidably connected to the fourth sleeve 204, the outer end of the fourth sleeve 204 is welded with a connecting frame 205, the interior of the connecting frame 205 is rotatably connected to the first screw rod 206, the outer surface of the first screw rod 206 is threadedly connected to the lifting frame 209, the interior of the lifting frame 209 is rotatably connected to the rotating shaft 210, the outer surface of the rotating shaft 210 is connected to the bucket 211, the outer side of the lifting frame 209 is installed with a first driving motor 212 that drives the rotating shaft 210 to rotate, and two groups of first guide rods 207 are fixedly installed inside the connecting frame 205, the lifting frame 209 is slidably connected to the first guide rods 207, the top of the connecting frame 205 is fixedly installed with a first stepper motor 208, and the top of the first screw rod 206 is fixedly connected to the output end of the first stepper motor 208.

[0023] Please refer to Figure 6 and Figure 7 As shown, the inner wall of the first sleeve 201 is installed with a second stepper motor 213, the output end of the second stepper motor 213 is fixedly connected with a second screw rod 215, the interior of the first sleeve 201 is welded with a mounting plate 214, the other end of the second screw rod 215 is rotatably connected to the interior of the mounting plate 214, and the interior of the first sleeve 201 is also rotatably connected with a first connecting arm 217 and a second connecting arm 218, the interior of the fourth sleeve 204 is rotatably connected with a third connecting arm 219 and a fourth connecting arm 220, and the two ends of one side of the telescopic member 221 are respectively It is rotatably connected to the first connecting arm 217 and the second connecting arm 218, and the two ends of the other side of the telescopic member 221 are rotatably connected to the third connecting arm 219 and the fourth connecting arm 220 respectively. The outer surface of the second screw rod 215 is threadedly connected with a moving block 216, and the moving block 216 is connected to the telescopic member 221. The second sleeve 202 and the third sleeve 203 are both provided with a limiting slide groove 222 inside, and a limiting slide rod 223 matched with the limiting slide groove 222 is installed on the telescopic member 221, and the limiting slide rod 223 is slidably connected to the limiting slide groove 222.

[0024] It can be understood by those skilled in the art that, during construction, backfill soil to be backfilled will be piled up on both sides of the foundation pit 101, and the second screw rod 215 is driven to rotate by the output end of the second stepper motor 213, so that the moving block 216 reciprocates, and then the telescopic member 221 is in an extended or retracted state. When extended, the second sleeve 202, the third sleeve 203 and the fourth sleeve 204 are all extended to the outside of the first sleeve 201, and when retracted, the second sleeve 202, the third sleeve 203 and the fourth sleeve 204 are all retracted into the inside of the first sleeve 201, thereby controlling the longitudinal position of the bucket 211 and realizing the excavation of backfill soil at different longitudinal positions; and the first screw rod 206 is driven to rotate by the output end of the first stepper motor 208, so that the lifting frame 209 reciprocates up and down, and then the bucket 211 reciprocates up and down, so as to change the position of the bucket 211; and under the action of the output end of the first drive motor 212, the bucket 211 is rotated to realize the excavation action. Example

[0025] Please refer to Figure 8 and Fig.11 As shown, the backfilling mechanism 3 includes a mounting frame 301, a first screw rod 302, a first movable plate 305 and a second movable plate 306. The mounting frame 301 is welded to the left top of the backfilling vehicle 103. The first screw rod 302 is rotatably connected to the inside of the mounting frame 301. The threads at both ends of the first screw rod 302 are rotated in opposite directions. The first movable plate 305 and the second movable plate 306 are respectively threadedly connected to the two ends of the outer surface of the first screw rod 302. A first servo motor 304 is arranged on the outside of the mounting frame 301. One end of the screw rod 302 is fixedly connected to the output end of the first servo motor 304, and a second guide rod 303 is welded inside the mounting frame 301. The first movable plate 305 and the second movable plate 306 are both slidably connected to the second guide rod 303, and the tops of the first movable plate 305 and the second movable plate 306 are both fixedly connected to the first electric lifting rod 307, and the output ends of the two sets of first electric lifting rods 307 are both fixedly connected to the backfill box 308, and an inclined filter plate 309 is installed inside the backfill box 308.

[0026] Please refer to Figure 8-Figure 11 As shown, the top and bottom of the backfill box 308 are provided with an opening and closing mechanism 4, and inclined plates 313 are provided on both sides of the bottom end of the backfill box 308. The outer side of the backfill box 308 is rotatably connected to a rotating rod 310, and a box door 311 is fixedly installed on the outer surface of the rotating rod 310. A second driving motor 312 for driving the rotating rod 310 to rotate is installed on the top of the backfill box 308, and a card slot 317 is penetrated through the middle part of the outer end of the filter plate 309. The outer side of the backfill box 308 is connected to the card block 315 through a telescopic sleeve rod 316, and the outer side of the telescopic sleeve rod 316 is provided with a spring 314, and the card block 315 is adapted to the card slot 317.

[0027] Please refer to Fig. 9 As shown, the opening and closing mechanism 4 includes a fixed block 401, a top cover 405 and a bottom cover 406. The top and bottom of the backfill box 308 are fixedly connected with two groups of fixed blocks 401. The second screw 402 is rotatably connected inside the two groups of fixed blocks 401. A third guide rod 403 is also welded between the two groups of fixed blocks 401. Two groups of top covers 405 and bottom covers 406 are each provided. The threads at both ends of the second screw 402 have opposite rotation directions. The two groups of top covers 405 are respectively threadedly connected to the two ends of the outer surface of the upper second screw 402, and the two groups of bottom covers 406 are respectively threadedly connected to the two ends of the outer surface of the lower second screw 402. One end of the second screw 402 is fixedly connected to the output end of the second servo motor 404. The second servo motor 404 is fixedly installed on the outside of the fixed block 401.

[0028] It can be understood by those skilled in the art that the output end of the first servo motor 304 drives the first screw 302 to rotate, so that the first movable plate 305 and the second movable plate 306 are moved closer to or farther from each other, thereby realizing that the backfill boxes 308 on both sides are moved closer to or farther from each other, and the spacing between the backfill boxes 308 on both sides is changed, so as to facilitate backfilling on both sides of the pipeline 102; the output end of the first electric lifting rod 307 is extended or contracted to realize the change of the height of the backfill box 308; the output end of the second servo motor 404 drives the second screw 402 to rotate, so that the two groups of top covers 405 are moved closer to or farther from each other and the two groups of bottom covers 406 are moved closer to or farther from each other. The filter plate 309 screens the backfill soil, and the soil that does not meet the backfill particle size will remain above the filter plate 309. The output end of the second drive motor 312 drives the rotating rod 310 to rotate, and the box door 311 is controlled to open and close, so that the soil that does not meet the backfill particle size can slide out of the backfill box 308 under the action of gravity; and when the filter plate 309 with different filter holes needs to be replaced, the clamping block 315 is pulled upward, so that the telescopic sleeve rod 316 and the spring 314 are both in a contracted state, and then the clamping block 315 is detached from the clamping slot 317, and the filter plate 309 can be directly pulled out, otherwise the filter plate 309 is fixed and installed. Example

[0029] Please refer to Fig. 9As shown, the positioning mechanism 5 includes a third screw rod 501 and a fourth guide rod 502, the third screw rod 501 is rotatably connected to the inside of the backfilling vehicle 103, the fourth guide rod 502 is fixedly connected to the inside of the backfilling vehicle 103, the threads opened at both ends of the third screw rod 501 are in opposite rotation directions, and both ends of the outer surface of the third screw rod 501 are threadedly connected with a first movable block 504, a first electric push rod 505 is fixedly installed at the bottom of the first movable block 504, the output end of the first electric push rod 505 is fixedly connected to the frame 506, the interior of the frame 506 is rotatably connected to a rotating member 507, and the interior of the rotating member 507 is rotatably connected to a roller 509, a third drive motor 508 for driving the rotating member 507 to rotate is arranged on the outside of the frame 506, a third servo motor 503 is installed on the outside of the backfilling vehicle 103, the output end of the third servo motor 503 extends into the backfilling vehicle 103 and is fixedly connected to one end of the third screw 501.

[0030] It can be understood by persons skilled in the art that, during backfilling, in order to prevent the pipeline 102 from being displaced, the present invention also drives the third screw 501 to rotate through the output end of the third servo motor 503, so that the two groups of first movable blocks 504 are moved closer to or farther away from each other, thereby changing the spacing between the rollers 509 on both sides; the frame 506 is driven up and down by the output end of the first electric push rod 505, thereby changing the height of the roller 509; the rotating member 507 is driven to rotate through the output end of the third drive motor 508, thereby changing the inclination angle of the roller 509; when used in combination, the roller 509 can be fitted with the wall of the pipeline 102 to achieve positioning, and the roller 509 is rotatably connected to the rotating member 507, so that when the backfill vehicle 103 moves, the roller 509 can roll along the outer wall of the pipeline 102. Example

[0031] Please refer to Fig.13 As shown, the first compacting mechanism 6 includes a fourth screw 601 and two groups of second movable blocks 604. The fourth screw 601 is rotatably connected inside the backfilling vehicle 103. A fifth guide rod 602 is also fixedly installed inside the backfilling vehicle 103. The threads at both ends of the fourth screw 601 have opposite rotation directions. The two groups of second movable blocks 604 are respectively threadedly connected to the two ends of the outer surface of the fourth screw 601. The second movable block 604 is slidably connected to the fifth guide rod 602, and one end of the fourth screw 601 is fixedly installed on the output end of the fourth servo motor 603. The fourth servo motor 603 is installed on the outside of the backfilling vehicle 103. Second electric push rods 605 are installed at the bottom of the two groups of second movable blocks 604, and the output end of the second electric push rod 605 is fixedly connected to the first compacting plate 606.

[0032] It can be understood by those skilled in the art that the fourth screw 601 is driven to rotate by the output end of the fourth servo motor 603, so that the two groups of second movable blocks 604 are moved closer to or farther away from each other, thereby changing the spacing between the first compacting plates 606 on both sides. Under the action of the second electric push rod 605, it is convenient to compact the backfill soil on both sides of the pipeline 102 when the pipeline 102 is not covered. The present invention can simultaneously backfill and compact both sides of the pipeline 102, which is convenient and quick, and improves the backfill efficiency. Example

[0033] Please refer to Fig.14 As shown, the second compacting mechanism 7 includes a sixth guide rod 702, which is fixedly connected to the inside of the backfilling vehicle 103. The inside of the backfilling vehicle 103 is also rotatably connected to the third screw rod 701. The outer surface of the sixth guide rod 702 is slidably connected to a movable part 704. The movable part 704 is threadedly connected to the sixth guide rod 702. A third stepping motor 703 for driving the third screw rod 701 to rotate is also provided on the outside of the backfilling vehicle 103, and a third electric push rod 705 is fixedly installed at the bottom of the movable part 704. The output end of the third electric push rod 705 is fixedly connected to the second compacting plate 706.

[0034] It can be understood by those skilled in the art that after the pipe 102 is completely covered and in a compacted state, the filling is continued. At this time, the second compacting mechanism 7 is used to compact the backfill soil. The output end of the third stepper motor 703 drives the third screw rod 701 to rotate, so that the movable part 704 slides back and forth along the outer surface of the sixth guide rod 702, thereby changing the position of the second compacting plate 706 in the width direction of the foundation pit 101. With the cooperation of the output end of the third electric push rod 705, comprehensive compaction of the width position of the foundation pit 101 is achieved. Example

[0035] Please refer to Fig.15 and Fig.16As shown, the belt laying mechanism 8 includes a mounting member 801, which is welded to the outer bottom of the backfill vehicle 103, a second electric lifting rod 802 is arranged on the top of the mounting member 801, a frame 803 is arranged below the mounting member 801, and a belt winding wheel 804 is rotatably connected inside the frame 803, slots 805 are provided on both sides of the top of the frame 803, a plug plate 806 is inserted inside the slot 805, a second electric telescopic rod 809 is fixedly connected to the outer side of the plug plate 806, an output end of the second electric telescopic rod 809 is fixedly connected to a mounting block 810, a drill bit 812 is rotatably connected inside the mounting block 810, and the mounting block 803 is provided with a drill bit 812. A drilling motor 811 for driving a drill bit 812 to rotate is arranged on the outside of the frame 803, and a first electric telescopic rod 808 is installed on the outside of the frame 803, a positioning block is installed on the output end of the first electric telescopic rod 808, a positioning groove 807 matched with the positioning block is opened through the plug plate 806, and a third electric telescopic rod 813 and a fourth electric telescopic rod 815 are connected to the top of both sides of the frame 803 respectively, a pressing groove 814 is arranged inside the frame 803, and a pressing block matched with the pressing groove 814 is fixedly connected to the output end of the third electric telescopic rod 813, and the output end of the fourth electric telescopic rod 815 is fixedly connected to the cutting head 816.

[0036] It can be understood by those skilled in the art that, since the pipeline 102 is buried inside the foundation pit 101, after the foundation pit 101 is backfilled and compacted, if there is excavation for engineering construction in the later stage, in order to prevent the excavation from damaging the pipeline 102, the present invention introduces a belt-laying mechanism 8, and a warning tape is wound around the belt-winding wheel 804. There are warning words on the warning tape, such as "A pipeline is buried 50 cm below the height, and further excavation is prohibited!" The discharge end of the warning tape is fixed in advance inside the pressing groove 814 under the action of the downward movement of the output end of the third electric telescopic rod 813. When laying the tape, the frame 803 is driven downward by the output end of the second electric lifting rod 802, so that the drill bit 812 is at a specified height position in the bottom foundation pit 101. With the cooperation of the second electric telescopic rod 809 and the drilling motor 811, the drilling head 812 is drilled to the bottom of the foundation pit 101. The drill bit 812 is now drilled into the inner wall of one side of the foundation pit 101 to fix the plug plate 806. The output end of the first electric telescopic rod 808 is retracted to disengage the positioning block from the positioning slot 807. The output end of the second electric lifting rod 802 continues to drive the frame 803 to move downward, so that the plug plate 806 is disengaged from the inside of the slot 805. When the backfill vehicle 103 moves, the belt wheel 804 automatically rotates to release the belt, thereby laying the warning belt. During the laying process, it is necessary to continue backfilling at a certain position away from both ends of the warning belt, so that the backfill soil can press the warning belt. Later, the cutting head 816 is driven downward at the output end of the fourth electric telescopic rod 815 to cut off the warning belt. In this way, the warning belt will not retract accidentally due to being pressed, such as being affected by wind.

[0037] The backfilling method using the backfilling device for water conservancy construction is as follows: the backfilling is divided into three areas, the first area needs to completely cover the pipe 102, the second area is to the position 500mm above the top of the pipe 102, and the third area is to be flush with the land 1, and the backfill soil particle size used in different areas is different. The backfill soil to be backfilled is piled on both sides of the foundation pit 101. The backfill boxes 308 on both sides are separated from each other through the output end of the first servo motor 304, and under the action of the first electric lifting rod 307, the backfill boxes 308 are located on both sides of the foundation pit 101 and the bottom is aligned with the bottom of the first electric lifting rod 307. The land 1 is in contact with each other, and the bucket 211 can dig the backfill soil at different longitudinal positions and move it to the top of the backfill box 308. The two top covers 405 at the top of the backfill box 308 are separated from each other, and the top of the backfill box 308 is completely exposed. Then, under the action of the first drive motor 212, the bucket 211 rotates to pour the excavated soil into the backfill box 308, and the two top covers 405 are moved closer to each other until they are in contact with each other. When the output end of the first electric lifting rod 307 is extended or contracted, the backfill soil in the backfill box 308 is screened to select the backfill soil that meets the requirements of the first zone; Secondly, during backfilling, the positioning mechanism 5 is used to position the pipeline 102 to prevent position deviation during the backfilling process, and then the backfill boxes 308 on both sides are brought close to each other through the output end of the first servo motor 304. According to the actual situation, the spacing between the backfill boxes 308 on both sides is controlled to backfill both sides of the pipeline 102. After backfilling, the first compacting mechanisms 6 on both sides are used to compact. The present invention can simultaneously backfill and compact both sides of the pipeline 102, which is convenient and fast, and improves the backfilling efficiency. After the pipe 102 is completely covered and the backfill soil is compacted, the filter plate 309 is replaced to screen out the backfill soil that meets the requirements of the second zone, and the backfilling is continued. The backfill soil at the width position of the foundation pit 101 is fully compacted by the second compacting mechanism 7; After the backfill in the second area is compacted, a warning tape is laid in the foundation pit 101 by the tape laying mechanism 8. During the laying process, it is necessary to continue backfilling at a certain position away from both ends of the warning tape, so that the backfill soil can press the warning tape. After the warning tape is laid, the filter plate 309 is replaced to screen out the backfill soil that meets the requirements of the third zone, and the backfill is continued. The second compacting mechanism 7 is also used to compact the soil until it is flush with the surface of the land 1, thereby completing the backfill of the pipeline and meeting the needs of the staff.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A soil backfilling device for water conservancy construction, comprising land (1), characterized in that: A foundation pit (101) is excavated at the top of the land (1), a pipeline (102) is buried inside the foundation pit (101), a backfill vehicle (103) is arranged at the top of the land (1), and digging mechanisms (2) are installed on both the front and rear sides of the backfill vehicle (103), the digging mechanisms (2) are used to dig backfill soil, the left top of the backfill vehicle (103) is connected to a backfill mechanism (3), the backfill mechanism (3) is used to backfill the inside of the foundation pit (101), and a positioning mechanism (5) is installed in the middle of the backfill vehicle (103). The positioning mechanism (5) is used to prevent the pipeline (102) from being displaced. A first compacting mechanism (6) and a second compacting mechanism (7) are respectively arranged on both sides of the positioning mechanism (5). The first compacting mechanism (6) is used to compact the backfill soil on both sides of the pipeline (102), and the second compacting mechanism (7) is used to compact the backfill soil above the pipeline (102). A belt laying mechanism (8) is also connected to the outer bottom of the backfill vehicle (103). The belt laying mechanism (8) is used to lay a warning belt inside the foundation pit (101).

2. A soil backfilling device for water conservancy construction according to claim 1, characterized in that: The digging mechanism (2) comprises a first sleeve (201) and a telescopic member (221); the first sleeve (201) is internally slidably connected to the second sleeve (202); the second sleeve (202) is internally slidably connected to the third sleeve (203); the third sleeve (203) is internally slidably connected to the fourth sleeve (204); a connecting frame (205) is welded to the outer end of the fourth sleeve (204); the connecting frame (205) is internally rotatably connected to the first screw rod (206); the outer surface of the first screw rod (206) is threadedly connected to a lifting frame (209); the lifting frame (209) is threadedly connected to the lifting frame (209); 09) is rotatably connected to a rotating shaft (210), an outer surface of the rotating shaft (210) is connected to a bucket (211), a first driving motor (212) for driving the rotating shaft (210) to rotate is installed on the outer side of the lifting frame (209), and two groups of first guide rods (207) are fixedly installed inside the connecting frame (205), the lifting frame (209) is slidably connected to the first guide rods (207), a first stepper motor (208) is fixedly installed on the top of the connecting frame (205), and the top of the first lead screw (206) is fixedly connected to the output end of the first stepper motor (208).

3. A soil backfilling device for water conservancy construction according to claim 2, characterized in that: A second stepper motor (213) is mounted on the inner wall of the first sleeve (201); the output end of the second stepper motor (213) is fixedly connected to a second screw rod (215); a mounting plate (214) is welded inside the first sleeve (201); the other end of the second screw rod (215) is rotatably connected to the inside of the mounting plate (214); the inside of the first sleeve (201) is also rotatably connected to a first connecting arm (217) and a second connecting arm (218); the inside of the fourth sleeve (204) is rotatably connected to a third connecting arm (219) and a fourth connecting arm (220); and two ends of one side of the telescopic member (221) are respectively connected to the first connecting arm (217) and the second connecting arm (218). The first connecting arm (217) is rotatably connected to the second connecting arm (218), and the other two ends of the telescopic member (221) are rotatably connected to the third connecting arm (219) and the fourth connecting arm (220), respectively. The outer surface of the second screw rod (215) is threadedly connected to a moving block (216), and the moving block (216) is connected to the telescopic member (221). The second sleeve (202) and the third sleeve (203) are both provided with a limiting slide groove (222) inside. A limiting slide rod (223) matched with the limiting slide groove (222) is installed on the telescopic member (221), and the limiting slide rod (223) is slidably connected to the limiting slide groove (222).

4. A soil backfilling device for water conservancy construction according to claim 1, characterized in that: The backfilling mechanism (3) comprises a mounting frame (301), a first screw rod (302), a first movable plate (305) and a second movable plate (306); the mounting frame (301) is welded to the top of the left side of the backfilling vehicle (103); the first screw rod (302) is rotatably connected to the inside of the mounting frame (301); the threads at both ends of the first screw rod (302) are in opposite directions of rotation; the first movable plate (305) and the second movable plate (306) are respectively threadedly connected to the two ends of the outer surface of the first screw rod (302); a first servo motor (304) is arranged outside the mounting frame (301); One end of the screw rod (302) is fixedly connected to the output end of the first servo motor (304); a second guide rod (303) is welded inside the mounting frame (301); the first movable plate (305) and the second movable plate (306) are both slidably connected to the second guide rod (303); the tops of the first movable plate (305) and the second movable plate (306) are both fixedly connected to first electric lifting rods (307); the output ends of the two sets of first electric lifting rods (307) are both fixedly connected to the backfill box (308); and an inclined filter plate (309) is installed inside the backfill box (308).

5. A soil backfilling device for water conservancy construction according to claim 4, characterized in that: The top and bottom of the backfill box (308) are both provided with an opening and closing mechanism (4), and both sides of the bottom of the backfill box (308) are provided with inclined plates (313). The outer side of the backfill box (308) is rotatably connected to a rotating rod (310), and a box door (311) is fixedly installed on the outer surface of the rotating rod (310). A second driving motor (312) for driving the rotating rod (310) to rotate is installed on the top of the backfill box (308), and a clamping groove (317) is provided through the middle of the outer end of the filter plate (309). The outer side of the backfill box (308) is connected to a clamping block (315) via a telescopic sleeve rod (316), and a spring (314) is sleeved on the outer side of the telescopic sleeve rod (316), and the clamping block (315) is adapted to fit the clamping groove (317).

6. A soil backfilling device for water conservancy construction according to claim 5, characterized in that: The opening and closing mechanism (4) comprises a fixed block (401), a top cover (405) and a bottom cover (406). The top and bottom of the backfill box (308) are fixedly connected to two sets of fixed blocks (401). The insides of the two sets of fixed blocks (401) are rotatably connected to the second screw rod (402). A third guide rod (403) is welded between the two sets of fixed blocks (401). Two sets of top covers (405) and two sets of bottom covers (406) are provided. The threads at both ends of the second screw rod (402) have opposite rotation directions. The two sets of top covers (405) are respectively threadedly connected to the two ends of the outer surface of the upper second screw rod (402), and the two sets of bottom covers (406) are respectively threadedly connected to the two ends of the outer surface of the lower second screw rod (402). One end of the second screw rod (402) is fixedly connected to the output end of the second servo motor (404). The second servo motor (404) is fixedly mounted on the outside of the fixed block (401).

7. An earthwork backfilling device for water conservancy construction according to claim 1, characterized in that: The positioning mechanism (5) comprises a third screw rod (501) and a fourth guide rod (502), wherein the third screw rod (501) is rotatably connected to the interior of the backfilling vehicle (103), and the fourth guide rod (502) is fixedly connected to the interior of the backfilling vehicle (103). The threads at both ends of the third screw rod (501) are in opposite directions of rotation, and both ends of the outer surface of the third screw rod (501) are threadedly connected to a first movable block (504), and a first electric push rod (505) is fixedly installed at the bottom of the first movable block (504). The output end of the backfill vehicle (103) is fixedly connected to the frame (506), the frame (506) is internally rotatably connected to a rotating member (507), and the rotating member (507) is internally rotatably connected to a roller (509), a third driving motor (508) for driving the rotating member (507) to rotate is arranged outside the frame (506), a third servo motor (503) is installed outside the backfill vehicle (103), and the output end of the third servo motor (503) extends into the backfill vehicle (103) and is fixedly connected to one end of the third screw rod (501).

8. An earth backfilling device for water conservancy construction according to claim 1, characterized in that: The first compacting mechanism (6) comprises a fourth screw (601) and two sets of second movable blocks (604); the fourth screw (601) is rotatably connected inside the backfilling vehicle (103); a fifth guide rod (602) is fixedly installed inside the backfilling vehicle (103); the threads at both ends of the fourth screw (601) have opposite rotation directions; the two sets of second movable blocks (604) are respectively threadedly connected to the two ends of the outer surface of the fourth screw (601); the second movable blocks (604) are slidably connected to the fifth guide rod (602); one end of the fourth screw (601) is fixedly installed at the output end of a fourth servo motor (603); the fourth servo motor (603) is installed outside the backfilling vehicle (103); and the bottoms of the two sets of second movable blocks (604) are both installed with second electric push rods (605). The output end of the second electric push rod (605) is fixedly connected to the first compacting plate (606), and the second compacting mechanism (7) includes a sixth guide rod (702), the sixth guide rod (702) is fixedly connected to the inside of the backfilling vehicle (103), the inside of the backfilling vehicle (103) is also rotatably connected to a third screw rod (701), the outer surface of the sixth guide rod (702) is slidably connected to a movable part (704), the movable part (704) is threadedly connected to the sixth guide rod (702), the outer side of the backfilling vehicle (103) is also provided with a third stepping motor (703) for driving the third screw rod (701) to rotate, and a third electric push rod (705) is fixedly installed at the bottom of the movable part (704), and the output end of the third electric push rod (705) is fixedly connected to the second compacting plate (706).

9. An earthwork backfilling device for water conservancy construction according to claim 1, characterized in that: The belt laying mechanism (8) comprises a mounting member (801), the mounting member (801) being welded to the outer bottom of the backfill vehicle (103), a second electric lifting rod (802) being arranged on the top of the mounting member (801), a frame (803) being arranged below the mounting member (801), a belt winding wheel (804) being rotatably connected inside the frame (803), slots (805) being provided on both sides of the top of the frame (803), a plug plate (806) being inserted inside the slot (805), a second electric telescopic rod (809) being fixedly connected to the outer side of the plug plate (806), an output end of the second electric telescopic rod (809) being fixedly connected to a mounting block (810), a drill bit (812) being rotatably connected inside the mounting block (810), and the mounting member (810) being installed. A soil drilling motor (811) for driving a drill bit (812) to rotate is arranged outside the block (810), and a first electric telescopic rod (808) is installed outside the frame (803), a positioning block is installed at the output end of the first electric telescopic rod (808), a positioning groove (807) matching the positioning block is penetrated through the plug plate (806), and a third electric telescopic rod (813) and a fourth electric telescopic rod (815) are respectively connected to the top of both sides of the frame (803), a pressing groove (814) is arranged inside the frame (803), a pressing block matching the pressing groove (814) is fixedly connected to the output end of the third electric telescopic rod (813), and the output end of the fourth electric telescopic rod (815) is fixedly connected to the cutting head (816).

10. A method for backfilling earthwork for water conservancy construction, used to implement the device for backfilling earthwork for water conservancy construction as claimed in any one of claims 1 to 9, characterized in that: include: S1, the digging mechanism (2) digs the backfill soil and transfers the backfill soil into the backfill box (308); S2, the backfilling mechanism (3) screens the backfill soil inside the backfill box (308) and fills the backfill soil on both sides of the pipeline (102), the positioning mechanism (5) positions the pipeline (102), and then the first compacting mechanism (6) compacts until the backfill soil completely covers the pipeline (102); S3, replacing the filter plate (309), repeating the above steps to perform screening and backfilling, and compacting by the second compacting mechanism (7), and backfilling and compacting to a position 500 mm above the top of the pipeline (102); S4, the tape laying mechanism (8) lays a warning tape at a position 500 mm above the top of the pipeline (102); S5. Continue to replace the filter plate (309), repeat the above steps to perform screening and backfilling, and also use the second compacting mechanism (7) to compact the backfill until it is flush with the surface of the land (1).

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