Pipe ditch backfilling device

Abstract

The utility model relates to the field of earthwork backfilling equipment, and provides a pipe ditch backfilling device which comprises a walking vehicle body, a backfilling mechanism and an earth ramming mechanism, and the backfilling mechanism and the earth ramming mechanism are both installed on the walking vehicle body; the backfilling mechanism comprises a mounting support fixed to the walking vehicle body, a fixing rod piece fixedly erected on the mounting support, two auger components rotationally arranged on the fixing rod piece in a sleeving mode, and a driving assembly used for driving the two auger components to conduct reverse conveying. The fixed rod piece is hollow, one end of the fixed rod piece is sealed, and the other end of the fixed rod piece is connected with a water supply mechanism for adding water into the fixed rod piece; a water permeable structure is arranged between the auger component and the fixing rod piece, and when the auger component rotates, water is sprayed out intermittently through the water permeable structure. On the basis, the backfilled soil can become dense, and the soil can be automatically tamped after the soil is backfilled, so that the working efficiency of soil backfilling is improved.

Description

Technical Field

[0001] The present application relates to the field of earth backfilling equipment, and in particular to a device for backfilling a pipe trench. Background Art

[0002] A pipe trench refers to a groove excavated on the ground for laying pipes. After the pipes are laid, the trench needs to be backfilled with sand and soil.

[0003] The Chinese patent with the authorization announcement number CN202172573U discloses a trench backfilling device, which is essentially a trench backfilling device, including a front frame, a gear box and a rear frame. The front frame is fastened to the tractor bumper with bolts, and the gear box is connected to the front frame by a hinge; the rear frame is fixed to the gear box; left and right augers are installed inside the rear frame, one end of the input shaft at the upper end of the gear box is equipped with a pulley, and the other end is equipped with a driving gear, the intermediate shaft located in the middle of the gear box is equipped with a transmission gear and a transmission sprocket, and the output shaft at the lower end of the gear box is equipped with a driven sprocket, and the two ends of the output shaft are respectively connected to the left and right augers. The power of the tractor is transmitted to the driving gear through the pulley, and the driving gear drives the transmission gear and the transmission sprocket to move, which can force the left and right augers to rotate, and the soil is backfilled into the ditch under the action of the rotating left and right augers and the fixed arc baffle.

[0004] However, the excavated soil piled on the outside of the trench gradually becomes dry after being exposed to wind and sun, which makes the gaps between adjacent soil particles larger. When the left and right augers backfill the soil into the trench, the soil becomes fluffy and needs to be compacted later, which affects the efficiency of the soil backfilling operation and needs to be improved. Utility Model Content

[0005] Based on this, the present application provides a device for backfilling a trench, which can make the soil after backfilling dense and can automatically compact the soil after backfilling to improve the efficiency of the soil backfilling operation.

[0006] The present application provides a device for backfilling a trench using the following technical solution:

[0007] A device for backfilling a pipe trench comprises a traveling vehicle body, a backfilling mechanism for backfilling soil, and a tamping mechanism for compacting the backfilled soil, wherein the backfilling mechanism and the tamping mechanism are both mounted on the traveling vehicle body;

[0008] The backfilling mechanism includes a mounting bracket fixed to the traveling vehicle body, a fixed rod fixedly mounted on the mounting bracket, two auger components rotatably mounted on the fixed rod, and a driving assembly for driving the two auger components to transport in reverse; a retaining plate is provided on the side of the mounting bracket, and the retaining plate is located at the rear end of the auger component along the moving direction of the traveling vehicle body;

[0009] The fixed rod is hollow, one end of the fixed rod is sealed, and the other end is connected to a water supply mechanism for adding water to the inside of the fixed rod; a water-permeable structure is provided between the auger component and the fixed rod, and when the auger component rotates, water is intermittently sprayed out through the water-permeable structure.

[0010] By adopting the above-mentioned technical scheme, when the device of the present application backfills the soil outside the trench, the walking body and the backfilling mechanism are made to span both sides of the trench width direction, and the two auger components are driven to transport in reverse by controlling the action of the driving assembly, so that the soil on both sides of the trench can be moved by the auger components; and, as the auger components rotate, the water transported to the inside of the fixed rod by the water supply mechanism can be intermittently sprayed through the permeable structure, so that the inside of the soil gradually becomes moist, and the adjacent soil particles are bonded to each other and the gaps become smaller, so that the soil can be piled up more densely after the subsequent soil enters the trench, and then the backfilled soil is compacted by the compacting mechanism, so that the soil can be piled up more densely, and the soil backfilling operation is completed at one time, which is conducive to improving the efficiency of the soil backfilling operation.

[0011] Optionally, the auger component includes a mounting sleeve rotatably mounted on the outer peripheral side of the fixed rod and a spiral scraper fixed to the outer peripheral side of the mounting sleeve, and the spiral directions of the two spiral scrapers are opposite; a rotation limiter is provided at the end of the mounting sleeve, and the mounting sleeve is rotatably connected to the mounting bracket through the rotation limiter.

[0012] By adopting the above-mentioned technical solution, the setting of the rotation limiter can enable the installation sleeve to be rotatably connected to the installation bracket, so as to limit the movement of the installation sleeve along the axis direction of the fixed rod; when the installation sleeve rotates, the spiral scraper fixed to the outer peripheral side of the installation sleeve can smoothly drive the soil to move toward the trench to complete the soil backfilling operation.

[0013] Optionally, the water-permeable structure includes a plurality of first water-permeable holes arranged on the outer peripheral side of the mounting sleeve and a plurality of second water-permeable holes arranged on the outer peripheral side of the fixing rod. When the driving assembly forces the mounting sleeve to rotate, each first water-permeable hole is intermittently arranged opposite to each second water-permeable hole.

[0014] By adopting the above-mentioned technical solution, when the driving assembly drives the installation sleeve to rotate and the first water permeable hole rotates to a position opposite to the second water permeable hole, the water transported by the water supply mechanism to the inside of the fixed rod can be sprayed out through the second water permeable hole and the first water permeable hole, thereby making the soil outside the auger component moist, so that the soil can be more compact after being backfilled into the trench.

[0015] Optionally, a geotextile is disposed around the outer circumference of the installation sleeve, and the geotextile covers each first water-permeable hole.

[0016] By adopting the above technical solution, the geotextile has the functions of soil retaining and water permeability, which can reduce the possibility of soil blocking the inside of the first water permeable hole and ensure that water can be smoothly sprayed out through the first water permeable hole to wet the soil.

[0017] Optionally, the driving assembly includes a driving motor, a first sprocket, a second sprocket, a chain belt and a connecting sleeve, the driving motor is fixed to the walking vehicle body, the first sprocket is coaxially connected to the output end of the driving motor; the connecting sleeve is fixedly connected between two mounting sleeves, and the second sprocket is fixedly sleeved on the outer peripheral side of the connecting sleeve; the chain belt is sleeved on the outer peripheral sides of the first sprocket and the second sprocket, and is used to make the second sprocket rotate with the first sprocket.

[0018] By adopting the above-mentioned technical solution, when the driving motor drives the first sprocket to rotate, the first sprocket can drive the second sprocket to rotate through the chain belt, thereby rotating the connecting sleeve fixed to the second sprocket; at this time, the two mounting sleeves connected to the connecting sleeve can rotate together, and since the spiral directions of the two spiral scrapers are opposite, the two spiral scrapers can jointly carry the soil to move toward the trench to complete the automatic backfilling operation of the soil.

[0019] Optionally, the water supply mechanism includes a water tank installed on the walking vehicle body and a water outlet pipe connected between the water tank and the fixed rod, and the water outlet pipe is installed with a pressure pump for pumping water.

[0020] By adopting the above technical solution, the water tank is used to store water, the water outlet pipe is used to transport the water in the water tank to the inside of the fixed rod, and the pressure pump is always used to provide pressure to the inside of the fixed rod, so that the water can be quickly sprayed out when the permeable structure takes effect, thereby providing efficiency in wetting the soil.

[0021] Optionally, the ramming mechanism includes a ramming plate, an elastic member and a vibration motor. The ramming plate is elastically connected to the bottom of the traveling vehicle body through the elastic member, and the vibration motor is fixed to the top surface of the ramming plate to drive the ramming plate to vibrate up and down.

[0022] By adopting the above technical solution, after the soil on both sides of the trench is backfilled into the trench through the backfilling mechanism, the walking vehicle body moves forward to move the compacting mechanism above the backfill soil; by controlling the operation of the vibration motor, the vibration motor can force the ramming plate to vibrate up and down, and then repeatedly impact the backfill soil, which can compact the backfill soil and automatically complete the soil backfilling operation, thereby improving the soil backfilling operation efficiency.

[0023] Optionally, the rammed earth slab is provided with a plurality of rammed earth columns, and the rammed earth columns are irregularly arranged on the bottom surface of the rammed earth slab.

[0024] By adopting the above technical solution, the setting of rammed earth columns can enhance the compaction effect of the rammed earth board on the soil, and by irregularly arranging the rammed earth columns on the bottom surface of the rammed earth board, the positions of the rammed earth columns are different after the walking vehicle moves, which is also conducive to enhancing the compaction effect of the rammed earth board on the soil.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the auger component drives the soil to move toward the pipe trench, by setting up a water supply mechanism and a water-permeable structure, water can be sprayed out intermittently through the water-permeable structure, thereby gradually moistening the inside of the soil, and making the soil more densely piled after the subsequent soil enters the pipe trench. The backfilled soil can be compacted by the compaction mechanism, and the soil backfilling operation can be completed at one time, which is conducive to improving the efficiency of the soil backfilling operation;

[0027] 2. By setting the first water-permeable hole and the second water-permeable hole, when the driving assembly drives the mounting sleeve to rotate and the first water-permeable hole rotates to a position directly opposite to the second water-permeable hole, water can be smoothly sprayed out from the second water-permeable hole and the first water-permeable hole, thereby making the soil outside the auger component moist;

[0028] 3. By arranging the geotextile to cover the first water permeable hole, the possibility of soil blocking the first water permeable hole can be reduced, ensuring that water can be smoothly sprayed out through the first water permeable hole to wet the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0030] Figure 2 is a structural schematic diagram of the backfill mechanism in this embodiment;

[0031] Figure 3 yes Figure 2 The enlarged view at point A in the middle mainly reflects the specific structure of the permeable structure;

[0032] Figure 4 Schematic diagram of the structure of the ramming mechanism in this embodiment.

[0033] Explanation of the reference numerals in the accompanying drawings: 1. walking body; 11. fixed bracket; 2. backfilling mechanism; 21. mounting bracket; 211. retaining plate; 22. fixing rod; 23. auger component; 231. mounting sleeve; 232. spiral scraper; 233. rotation limiter; 24. driving assembly; 241. driving motor; 242. first sprocket; 243. second sprocket; 244. chain belt; 245. connecting sleeve; 3. ramming mechanism; 31. ramming plate; 311. ramming column; 32. elastic member; 33. vibration motor; 4. water supply mechanism; 41. water storage tank; 42. water outlet pipe; 43. pressure pump; 5. water permeable structure; 51. first water permeable hole; 52. second water permeable hole. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a device for backfilling a pipe trench.

[0036] Reference Figure 1 A device for backfilling a pipe trench comprises a traveling vehicle body 1, a backfilling mechanism 2 for backfilling soil, and a tamping mechanism 3 for compacting the backfilled soil. The backfilling mechanism 2 and the tamping mechanism 3 are both installed on the traveling vehicle body 1, and the backfilling mechanism 2 is located at the front end of the tamping mechanism along the moving direction of the traveling vehicle body 1.

[0037] The backfill mechanism 2 includes a mounting bracket 21, a fixing rod 22, an auger component 23 and a drive assembly 24; Figure 2 The mounting bracket 21 is fixed to the front end of the walking vehicle body 1, and the two ends of the fixing rod 22 are respectively fixedly connected to the mounting bracket 21, so that the fixing rod 22 can be mounted on the mounting bracket 21; the axial direction of the fixing rod 22 is set in the same direction as the length direction of the mounting bracket 21.

[0038] The fixing rod 22 of this embodiment is hollow, one end of the fixing rod 22 is sealed, and the other end of the fixing rod 22 is inserted through the mounting bracket 21 and is open, and the open end of the fixing rod 22 is connected to a water supply mechanism 4 for adding water to the interior. Figure 1 The water supply mechanism 4 includes a water tank 41 and a water outlet pipe 42. The water tank 41 is fixedly installed on the walking body 1. One end of the water outlet pipe 42 is connected to the water outlet of the water tank 41, and the other end of the water outlet pipe 42 is connected to the open end of the fixed rod 22. The water outlet pipe 42 is also installed with a pressure pump 43, through which the water stored in the water tank 41 can be transported to the inside of the fixed rod 22.

[0039] Reference Figure 2There are two auger parts 23, and the two auger parts 23 are respectively rotatably sleeved on the outer peripheral side of the fixed rod 22; wherein, the auger part 23 includes a mounting sleeve 231 and a spiral scraper 232, and the inner diameter of the mounting sleeve 231 is equal to the outer diameter of the fixed rod 22, so that the mounting sleeve 231 can be matched and sleeved on the fixed rod 22 and can rotate around the central axis of the fixed rod 22. In addition, the end of the mounting sleeve 231 away from the adjacent mounting sleeve 231 is fixedly connected with a rotation limiter 233, and the rotation limiter 233 is rotatably embedded in the inner side surface of the mounting bracket 21, and can limit the movement of the mounting sleeve 231 along the axis direction of the fixed rod 22.

[0040] The spiral scraper 232 is fixed to the outer peripheral side of the mounting sleeve 231. The spiral scraper 232 is spirally extended along the axial direction of the mounting sleeve 231, and the spiral directions of the two spiral scrapers 232 are opposite. The driving component 24 is connected to the two mounting sleeves 231 at the same time. By controlling the operation of the driving component 24, the two spiral scrapers 232 can be transported in reverse, thereby backfilling the soil on both sides of the trench into the trench.

[0041] Also refer to Figure 1 The driving assembly 24 includes a driving motor 241, a first sprocket 242, a second sprocket 243, a chain belt 244 and a connecting sleeve 245. The driving motor 241 is fixed to the walking body 1, and the first sprocket 242 is coaxially connected to the output end of the driving motor 241; the connecting sleeve 245 is sleeved on the outer peripheral side of the fixed rod 22, and the connecting sleeve 245 is fixedly connected to the two mounting sleeves 231 by fastening bolts, so that it can drive the two mounting sleeves 231 to rotate at the same time; the second sprocket 243 is fixedly sleeved on the outer peripheral side of the connecting sleeve 245, and the chain belt 244 is sleeved on the outer peripheral sides of the first sprocket 242 and the second sprocket 243. When the driving motor 241 drives the first sprocket 242 to rotate, the chain belt 244 can drive the second sprocket 243 and the connecting sleeve 245 to rotate, thereby forcing the two spiral scrapers 232 to transport in the opposite direction.

[0042] Reference Figure 3A water-permeable structure 5 is provided between the auger component 23 and the fixed rod 22, which is used for intermittently spraying water through the water-permeable structure 5 when the auger component 23 rotates, thereby making the soil moist, so as to facilitate the compaction of the backfill soil; the water-permeable structure 5 includes a plurality of first water-permeable holes 51 opened on the outer peripheral side of the mounting sleeve 231 and a plurality of second water-permeable holes 52 opened on the outer peripheral side of the fixed rod 22. When the driving motor 241 drives the fixed rod 22 to rotate and the first water-permeable hole 51 rotates to a position directly opposite to the second water-permeable hole 52, the water inside the fixed rod 22 can be smoothly sprayed out through the second water-permeable hole 52 and the first water-permeable hole 51; and when the first water-permeable hole 51 rotates to a position misaligned with the second water-permeable hole 52, the first water-permeable hole 51 is blocked by the mounting sleeve 231, thereby realizing intermittent spraying of water.

[0043] A geotextile (not shown in the figure) is arranged around the outer circumference of the mounting sleeve 231. The geotextile in this embodiment is wound in the spiral gap of the spiral scraper 232, and the geotextile can cover each first water permeable hole 51, so as to reduce the possibility of soil clogging the inside of the first water permeable hole 51 and ensure that water can be smoothly sprayed out through the first water permeable hole 51 to wet the soil.

[0044] In addition, a retaining plate 211 is installed on the side of the mounting bracket 21. The retaining plate 211 is located along the moving direction of the walking vehicle body 1 and at the rear end of the auger component 23. It can play a role in retaining soil when the auger component 23 scrapes the soil. Moreover, after the operator pushes the walking vehicle body 1 to move, the retaining plate 211 can also scrape the soil on the outside of the trench, thereby scraping the remaining soil into the inside of the trench, and is also beneficial for leveling the backfill soil.

[0045] Reference Figure 4 The ramming mechanism 3 includes a ramming plate 31, an elastic member 32 and a vibration motor 33. A fixed bracket 11 is fixed to the rear end of the walking body 1. One end of the elastic member 32 is connected to the fixed bracket 11, and the other end of the elastic member 32 is connected to the ramming plate 31, so that the ramming plate 31 and the fixed bracket 11 are movably connected. The vibration motor 33 is fixed to the top surface of the ramming plate 31. When the vibration motor 33 is running, the vibration motor 33 can drive the ramming plate 31 to vibrate up and down, so as to compact the backfill soil. In addition, the bottom surface of the ramming plate 31 is integrally formed with a plurality of ramming columns 311, and each ramming column 311 is irregularly arranged on the bottom surface of the ramming plate 31, which is conducive to enhancing the compaction effect of the ramming plate 31 on the soil.

[0046] The implementation principle of a trench backfilling device in the present application embodiment is as follows:

[0047] When the soil outside the trench is backfilled by the device of the present application, the walking vehicle body 1 and the backfilling mechanism 2 are made to span across the two sides of the trench width direction, and the driving motor 241 is controlled to operate to drive the auger component 23 to rotate. The two auger components 23 can drive the soil on both sides of the trench to be transported in the opposite direction, so that the soil is backfilled inside the trench. In addition, as the auger component 23 rotates, the water body transported by the water supply mechanism 4 to the inside of the fixed rod 22 can be intermittently compensated through the second water permeable hole 52 and the first water permeable hole 51, thereby gradually making the soil inside moist, and the adjacent soil particles are mutually bonded and the gaps become smaller, so that the soil can be piled up more densely after the subsequent soil enters the trench, and then the backfilled soil is compacted by the compaction mechanism, so that the soil can be piled up more densely, and the soil backfilling operation is completed at one time, which is conducive to improving the operation efficiency of soil backfilling.

[0048] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for backfilling a trench, characterized in that: The invention comprises a traveling vehicle body (1), a backfilling mechanism (2) for backfilling soil, and a tamping mechanism (3) for compacting the backfilled soil, wherein the backfilling mechanism (2) and the tamping mechanism (3) are both mounted on the traveling vehicle body (1); wherein the backfilling mechanism (2) comprises a mounting bracket (21) fixed to the traveling vehicle body (1), a fixing rod (22) fixedly mounted on the mounting bracket (21), two auger components (23) rotatably mounted on the fixing rod (22), and a driving assembly (24) for driving the two auger components (23) to transport in reverse; A soil retaining plate (211) is provided on the side of the mounting bracket (21), and the soil retaining plate (211) is located at the rear end of the auger component (23) along the moving direction of the walking vehicle body (1); the fixed rod (22) is hollow, one end of the fixed rod (22) is sealed, and the other end is connected to a water supply mechanism (4) for adding water to the inside of the fixed rod (22); a water permeable structure (5) is provided between the auger component (23) and the fixed rod (22), and when the auger component (23) rotates, water is intermittently sprayed out through the water permeable structure (5).

2. The device for backfilling a pipe trench according to claim 1, characterized in that: The auger component (23) comprises a mounting sleeve (231) rotatably sleeved on the outer circumference of the fixed rod (22) and a spiral scraper (232) fixed on the outer circumference of the mounting sleeve (231), wherein the spiral directions of the two spiral scrapers (232) are opposite; a rotation limiter (233) is provided at the end of the mounting sleeve (231), and the mounting sleeve (231) is rotationally connected to the mounting bracket (21) via the rotation limiter (233).

3. The device for backfilling a pipe trench according to claim 2, characterized in that: The water-permeable structure (5) comprises a plurality of first water-permeable holes (51) arranged on the outer peripheral side of the mounting sleeve (231) and a plurality of second water-permeable holes (52) arranged on the outer peripheral side of the fixing rod (22); when the driving component (24) forces the mounting sleeve (231) to rotate, each of the first water-permeable holes (51) and each of the second water-permeable holes (52) are intermittently arranged opposite each other.

4. The device for backfilling a trench according to claim 3, characterized in that: A geotextile is arranged around the outer circumference of the installation sleeve (231), and the geotextile covers each first water permeable hole (51).

5. The device for backfilling a pipe trench according to claim 2, characterized in that: The driving assembly (24) comprises a driving motor (241), a first sprocket (242), a second sprocket (243), a chain belt (244) and a connecting sleeve (245); the driving motor (241) is fixed to the walking vehicle body (1); the first sprocket (242) is coaxially connected to the output end of the driving motor (241); the connecting sleeve (245) is fixedly connected between two mounting sleeves (231); the second sprocket (243) is fixedly sleeved on the outer peripheral side of the connecting sleeve (245); the chain belt (244) is sleeved on the outer peripheral sides of the first sprocket (242) and the second sprocket (243) to enable the second sprocket (243) to rotate following the first sprocket (242).

6. The device for backfilling a pipe trench according to claim 1, characterized in that: The water supply mechanism (4) comprises a water storage tank (41) mounted on the walking vehicle body (1) and a water outlet pipe (42) connected between the water storage tank (41) and the fixed rod (22); the water outlet pipe (42) is equipped with a pressure pump (43) for pumping water.

7. The device for backfilling a pipe trench according to claim 1, characterized in that: The ramming mechanism (3) comprises a ramming plate (31), an elastic member (32) and a vibration motor (33); the ramming plate (31) is elastically connected to the bottom of the traveling vehicle body (1) via the elastic member (32); and the vibration motor (33) is fixed to the top surface of the ramming plate (31) and is used to drive the ramming plate (31) to vibrate up and down.

8. The device for backfilling a pipe trench according to claim 7, characterized in that: The rammed earth plate (31) is provided with a plurality of rammed earth columns (311), and each of the rammed earth columns (311) is irregularly arranged on the bottom surface of the rammed earth plate (31).

Images