A retaining excavation device for laying heating pipes

Abstract

The present invention discloses a retaining excavation equipment for laying heating pipes, relating to the technical field of excavation equipment, comprising a connecting beam, wherein one side of the connecting beam is fixedly connected to a lower support arm, the top of the lower support arm is integrally formed with an upper support arm, the bottom end of the lower support arm is hinged with a swing arm, the bottom end of the swing arm is fixedly connected to a power box, excavation wheels are installed at both ends of the power box, the support plate is fixedly connected to a fixed sleeve, the fixed sleeve is rotatably connected to a rotating sleeve, the rotating sleeve is slidably connected to a reciprocating screw rod, the bottom end of the reciprocating screw rod is rotatably connected to a lifting plate, the reciprocating screw rod is slidably connected to a sliding rod, the bottom end of the sliding rod is fixedly connected to a tamping plate, and side tamping plates are provided on both sides of the lifting plate. The retaining excavation equipment for laying heating pipes can complete the synchronous tamping of the three side walls of the trench during excavation to form a stable retaining wall, thereby effectively preventing collapse.

Description

Technical Field

[0001] The invention relates to the technical field of excavation equipment, in particular to earth-retaining excavation equipment used for laying heating pipelines. Background Art

[0002] In urban heating network construction, laying heating pipes typically requires excavating underground trenches. Traditionally, this approach uses excavators combined with manual retaining walls, resulting in low efficiency and significant safety risks. Especially in areas with limited underground space, excavation can easily disturb the surrounding soil, leading to engineering accidents such as trench collapse and road subsidence.

[0003] In the prior art, the excavation equipment for laying cement pipe grooves with the authorization announcement number CN111877432B includes: a power mechanism, which includes a main body and an engine, and the engine is provided with a power wheel; a grooving mechanism, which includes a support ring, a bucket, a screw feeder and a pair of support arms; and a plurality of drop-out ports are provided on the support ring.

[0004] During heating pipe laying, these devices only functioned as excavators and earthmovers, requiring manual labor or other auxiliary equipment to complete retaining, crushing, and compacting operations. This resulted in low efficiency, high costs, and a high risk of landslides. This resulted in poor trench stability, impacting the quality of subsequent pipe laying. Furthermore, this decentralized operation model prolonged the construction period, exacerbating the risk of landslides, especially in soft soil conditions. Summary of the Invention

[0005] The object of the present invention is to provide a retaining and excavating device for laying heating pipes to solve the problems raised in the above background technology.

[0006] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0007] Preferably, the front end of the upper support arm is hinged with an upper hinge plate, the bottom of the upper hinge plate is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a lower hinge plate, and the lower hinge plate is hinged to the top of the swing arm. The hydraulic cylinder is activated to drive the lower hinge plate to extend and retract, thereby driving the swing arm to swing, and the angle of the swing arm is adjusted to adjust the distance between the excavating wheel and the ground.

[0008] Preferably, the feed barrel is rotatably connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to a spiral conveying rod, the bottom end of the rotating shaft is fixedly connected to a spiral drill bit, the top end of the feed barrel is fixedly connected to a first motor, the output end of the first motor is fixedly connected to the top end of the rotating shaft, the spiral drill bit is arranged inside the soil collecting bucket, and a discharge port is provided at the bottom top end of the feed barrel, and the discharge port is arranged inside the storage box. The rotating shaft is driven to rotate by starting the first motor, thereby driving the spiral conveying rod and the spiral drill bit to rotate, and the soil is drilled by the spiral drill bit to disperse large pieces of soil, and the soil is transmitted through the spiral conveying rod, so that the soil is discharged from the discharge port into the storage box.

[0009] Preferably, a soil dividing plate is fixedly connected to the bottom end of the storage box, and discharge troughs are provided on both sides of the storage box, and the soil is diverted by the soil dividing plate, and the soil flows out from the second springs on both sides. A fixed plate is fixedly connected to the rear side of the storage box, and a slide groove is provided at the bottom end of the fixed plate, and a clamping block is slidably connected to the inside of the fixed plate slide groove, and the rear side of the clamping block is fixedly connected to the second spring, and the rear end of the second spring is fixedly connected to the inner wall of the fixed plate slide groove to support the clamping block so that the clamping block can be retracted into the fixed plate slide groove.

[0010] Preferably, a clamping sleeve is fixedly connected to the top of the tamping plate, the clamping block is clamped with the clamping sleeve, and the top and bottom of the clamping block are both set as arc-shaped surfaces, so that the clamping block and the clamping sleeve are clamped to limit the tamping plate.

[0011] Preferably, the top of the fixed sleeve is fixedly connected to a second motor, the output end of the second motor passes through the top wall of the fixed sleeve and is rotatably connected to the fixed sleeve, the bottom end of the second motor output end is fixedly connected to the top of the rotating sleeve, and limiting plates are integrally formed on both sides of the interior of the rotating sleeve, and limiting grooves are provided on both sides of the reciprocating screw, and the two limiting plates are respectively slidably connected to the inside of the two limiting grooves and adapted to the two limiting grooves, and the bottom end of the fixed sleeve is fixedly connected to a threaded sleeve, the reciprocating screw passes through the threaded sleeve and is threadedly connected to the threaded sleeve, and the limiting groove is limited by the limiting plate, so that the second motor drives the reciprocating screw to rotate synchronously when the rotating sleeve is driven to rotate. Because the reciprocating screw is threadedly connected to the threaded sleeve, it rises or falls when the reciprocating screw rotates.

[0012] Preferably, the top of the sliding rod is fixedly connected to a first spring, the top of the first spring is fixedly connected to the top of the inner wall of the reciprocating screw rod, and telescopic rods are fixedly connected to both sides of the bottom of the support plate, and the bottom ends of the two telescopic rods are fixedly connected to the top of the lifting plate, so that the telescopic rods provide limited support to the lifting plate to prevent the lifting plate from deflecting.

[0013] Preferably, support rods are fixedly connected to both sides of the top of the tamping plate, and the two support rods pass through the lifting plate and are slidably connected to the lifting plate. The top ends of the two support rods are fixedly connected to limit blocks, and guide plates are fixedly connected to the side of the storage box at both ends of the top of the tamping plate to block the soil and prevent the soil from falling on the top of the tamping plate.

[0014] Preferably, both ends of the lifting plate are hinged with hinge rods, and the two hinge rods are hinged with support blocks at one end away from the lifting plate. The two support blocks are fixedly connected to the two side ramming plates respectively. Both sides of the storage box are fixedly connected with L-shaped plates, and the opposite sides of the two side ramming plates are fixedly connected with multiple guide rods, and the multiple guide rods respectively pass through the two L-shaped plates and are slidably connected to the two L-shaped plates. The L-shaped plates are limited by the guide rods, so as to provide limited support for the side ramming plates.

[0015] Preferably, a support plate is fixedly connected to the rear side of the storage box, and support wheels are rotatably connected to both sides of the support plate to support the storage box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the lifting plate reciprocates up and down, it drives the side rams on both sides to push the soil on both sides guided by the guide plates toward the two sides of the tunnel, and the soil is compacted against the tunnel wall to form a retaining wall, thereby preventing the soil from being scattered and facilitating the subsequent pipe laying.

[0018] 2. The present invention drives the limit block to rise through the reciprocating screw, and the limit block drives the support rod and the tamping plate to rise, so that the tamping plate drives the clamping sleeve to re-connect with the clamping block, supports and limits the tamping plate, and repeats the above steps when the reciprocating screw is lowered again to compact the three tunnel walls in the tunnel, thereby improving the stability of the tunnel and facilitating the subsequent pouring of concrete or direct laying of pipelines. The synchronous tamping of the three side walls of the trench is completed at the same time as excavation to form a stable retaining wall, effectively preventing collapse; an automatic lifting rammer design is adopted, and a mechanism linkage is used to realize periodic heavy hammer tamping of the lower soil, providing high-density support for the foundation of pipeline laying.

[0019] The soil collecting bucket and the material storage box fall into the inner side of the tunnel and follow the movement, and the excavated soil splashes and is blocked by the arc plate and the retaining plate. At the same time, the soil collecting bucket gathers the collected soil in the middle when it moves, and the first motor is started to drive the rotating shaft to rotate, so that the rotating shaft drives the auger conveying rod and the auger drill to rotate simultaneously, and the auger drill head breaks large soil clods, preventing the soil clods from being too large and affecting the feeding. After the soil enters the feed barrel along the gap, the auger conveying rod transports the soil upward and falls from the inside of the material storage box into the material storage box. Because the storage box is fixedly connected with the soil dividing plate, the soil falls on the soil dividing plate and is diverted to both sides by the soil dividing plate, and the soil falls from the discharge troughs on both sides to the two sides of the storage box, which is conducive to rapid excavation and transmission of the excavated soil, preventing material from piling up, and facilitating the subsequent construction of retaining walls. The integrated operation of excavation, crushing soil and soil transportation is realized, and the trench excavation efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the soil collecting bucket of the present invention;

[0022] Figure 3 is a side view of the present invention;

[0023] Figure 4 This is a schematic structural diagram of the excavating wheel of the present invention;

[0024] Figure 5 Schematic diagram of the structure of the curved plate of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the feeding tube of the present invention;

[0026] Figure 7 Schematic diagram of the structure of the spiral drill bit of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the material storage box of the present invention;

[0028] Figure 9 It is a structural schematic diagram of the discharge chute of the present invention;

[0029] Figure 10 This is a structural diagram of the clamping block of the present invention;

[0030] Figure 11 Schematic diagram of the structure of the tamping plate of the present invention;

[0031] Figure 12 It is a structural schematic diagram of the lifting plate of the present invention;

[0032] Figure 13 Schematic diagram of the structure of the slide bar of the present invention;

[0033] Figure 14 It is a structural schematic diagram of the rotating sleeve of the present invention;

[0034] Figure 15 It is a structural schematic diagram of the side tamping plate of the present invention;

[0035] Figure 16 It is a structural schematic diagram of the clamping sleeve of the present invention.

[0036] Markings in the figure: 1. Connecting beam; 2. Lower support arm; 3. Upper support arm; 4. Swing arm; 5. Power box; 6. Digging wheel; 7. Hydraulic cylinder; 8. Lower hinge plate; 9. Upper hinge plate; 10. Curved plate; 11. Earth retaining plate; 12. Soil collecting bucket; 13. Feeding barrel; 14. Rotating shaft; 15. Screw conveying rod; 16. Auger bit; 17. First motor; 18. Discharge port; 19. Storage box; 20. Soil dividing plate; 21. Fixed plate; 22. Support plate; 23. Fixed sleeve; 24. Reciprocating screw ; 25. Lifting plate; 26. Slide rod; 27. First spring; 28. Tamping plate; 29. ​​Articulated rod; 30. Support block; 31. Side tamping plate; 32. Telescopic rod; 33. Support rod; 34. Limit block; 35. L-shaped plate; 36. Guide rod; 37. Rotating sleeve; 38. Limit plate; 39. Limit groove; 40. Threaded sleeve; 41. Second motor; 42. Snap block; 43. Second spring; 44. Snap sleeve; 45. Discharge chute; 46. Support plate; 47. Support wheel; 48. Guide plate. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example: Figures 1-16 As shown, the present invention provides a technical solution for retaining and excavating equipment for laying heating pipes, including a connecting beam 1, a lower support arm 2 is fixedly connected to one side of the connecting beam 1, an upper support arm 3 is integrally formed on the top of the lower support arm 2, a swing arm 4 is hinged at the bottom end of the lower support arm 2, a power box 5 is fixedly connected to the bottom end of the swing arm 4, excavating wheels 6 are installed at both ends of the power box 5, an upper hinged plate 9 is hinged at the front end of the upper support arm 3, a hydraulic cylinder 7 is fixedly connected to the bottom of the upper hinged plate 9, a lower hinged plate 8 is fixedly connected to the output end of the hydraulic cylinder 7, the lower hinged plate 8 is hinged to the top of the swing arm 4, the hydraulic cylinder 7 is activated to drive the lower hinged plate 8 to extend and retract, thereby driving the swing arm 4 to swing, and the angle of the swing arm 4 is adjusted to adjust the distance between the excavating wheel 6 and the ground.

[0039] An arc-shaped plate 10 is fixedly connected to the outside of the swing arm 4, a soil retaining plate 11 is hinged at the bottom of the arc-shaped plate 10, a soil collecting bucket 12 is fixedly connected to the bottom of the soil retaining plate 11, a feeding cylinder 13 is fixedly connected inside the soil collecting bucket 12, a storage box 19 is fixedly connected to the outside of the rear end of the feeding cylinder 13, a support plate 22 is fixedly connected to the top rear side of the storage box 19, a fixed sleeve 23 is fixedly connected to the inside of the support plate 22, a rotating sleeve 37 is rotatably connected to the inside of the fixed sleeve 23, a reciprocating screw rod 24 is slidably connected to the inside of the rotating sleeve 37, a lifting plate 25 is rotatably connected to the bottom end of the reciprocating screw rod 24, a sliding rod 26 is slidably connected to the inside of the reciprocating screw rod 24, and a tamping plate 28 is fixedly connected to the bottom end of the sliding rod 26.

[0040] The feeding cylinder 13 is internally connected to a rotating shaft 14, and a spiral conveying rod 15 is fixedly connected to the outside of the rotating shaft 14. A spiral drill bit 16 is fixedly connected to the bottom of the rotating shaft 14. The top of the feeding cylinder 13 is fixedly connected to a first motor 17. The output end of the first motor 17 is fixedly connected to the top of the rotating shaft 14. The spiral drill bit 16 is arranged inside the collecting bucket 12. A discharge port 18 is provided at the bottom of the top of the feeding cylinder 13. The discharge port 18 is arranged inside the storage box 19. The rotating shaft 14 is driven to rotate by the first motor 17, thereby driving the spiral conveying rod 15 and the spiral drill bit 1 6 rotates, and the soil is drilled by the auger bit 16 to disperse the large pieces of soil, and the soil is transported by the spiral conveying rod 15, so that the soil is discharged from the discharge port 18 into the storage box 19. The bottom end of the storage box 19 is fixedly connected to a soil dividing plate 20, and discharge grooves 45 are provided on both sides of the storage box 19. The soil is diverted by the soil dividing plate 20, and the soil flows out from the second springs 43 on both sides. A support plate 46 is fixedly connected to the rear side of the storage box 19, and support wheels 47 are rotatably connected on both sides of the support plate 46 to support the storage box 19.

[0041] The rear side of the storage box 19 is fixedly connected to a fixed plate 21, and a slide groove is provided at the bottom end of the fixed plate 21. A clamping block 42 is slidably connected to the slide groove of the fixed plate 21. The rear side of the clamping block 42 is fixedly connected to the second spring 43. The rear end of the second spring 43 is fixedly connected to the inner wall of the slide groove of the fixed plate 21, supporting the clamping block 42 so that the clamping block 42 can be retracted into the slide groove of the fixed plate 21. A clamping sleeve 44 is fixedly connected to the top of the tamping plate 28. The clamping block 42 is clamped with the clamping sleeve 44. The top and bottom of the clamping block 42 are both set to arc surfaces, so that the clamping block 42 is clamped with the clamping sleeve 44 to limit the tamping plate 28. The top of the fixed sleeve 23 is fixedly connected to the second motor 41. The output end of the second motor 41 passes through the top wall of the fixed sleeve 23 and It is rotatably connected to the fixed sleeve 23, and the bottom end of the output end of the second motor 41 is fixedly connected to the top of the rotating sleeve 37. Limiting plates 38 are integrally formed on both sides of the rotating sleeve 37. Limiting grooves 39 are provided on both sides of the reciprocating screw rod 24. The two limiting plates 38 are respectively slidably connected to the inside of the two limiting grooves 39 and adapted to the two limiting grooves 39. The bottom end of the fixed sleeve 23 is fixedly connected with a threaded sleeve 40, and the reciprocating screw rod 24 passes through the threaded sleeve 40 and is threadedly connected to the threaded sleeve 40. The limiting groove 39 is limited by the limiting plate 38, so that when the second motor 41 drives the rotating sleeve 37 to rotate, the reciprocating screw rod 24 is driven to rotate synchronously. Because the reciprocating screw rod 24 is threadedly connected to the threaded sleeve 40, it rises or falls when the reciprocating screw rod 24 rotates.

[0042] The top of the sliding rod 26 is fixedly connected to the first spring 27, and the top of the first spring 27 is fixedly connected to the top of the inner wall of the reciprocating screw rod 24. Telescopic rods 32 are fixedly connected to both sides of the bottom of the support plate 22, and the bottom ends of the two telescopic rods 32 are fixedly connected to the top of the lifting plate 25, so that the telescopic rods 32 limit the support of the lifting plate 25 to prevent the lifting plate 25 from deflecting. Support rods 33 are fixedly connected to both sides of the top of the tamping plate 28. The two support rods 33 pass through the lifting plate 25 and are slidably connected to the lifting plate 25. The tops of the two support rods 33 are fixedly connected to the limiting blocks 34. The two ends of the top of the tamping plate 28 are fixedly connected to the side of the storage box 19 to block the soil and prevent the soil from falling on the top of the tamping plate 28.

[0043] Side tamping plates 31 are provided on both sides of the lifting plate 25, and both ends of the lifting plate 25 are hinged with hinged rods 29. The two hinged rods 29 are hinged with support blocks 30 at one end away from the lifting plate 25. The two support blocks 30 are fixedly connected to the two side tamping plates 31 respectively. L-shaped plates 35 are fixedly connected on both sides of the storage box 19, and multiple guide rods 36 are fixedly connected to the opposite sides of the two side tamping plates 31. The multiple guide rods 36 respectively pass through the two L-shaped plates 35 and are slidably connected to the two L-shaped plates 35. The L-shaped plates 35 are limited by the guide rods 36, so as to provide limiting support for the side tamping plates 31.

[0044] When the present invention is in use, during tunnel excavation, the connecting beam 1 is installed with the tractor, so that the tractor pushes the device forward to excavate the tunnel, and the hydraulic cylinder 7 is started to drive the lower hinged plate 8 to descend, so that the lower hinged plate 8 pushes the swing arm 4 to deflect downward, thereby causing the power box 5 and the excavating wheel 6 to descend, and the excavating wheel 6 contacts the ground, and the driving structure inside the power box 5 drives the excavating wheel 6 to rotate, so that the excavating wheel 6 excavates the soil outward when it rotates, and the tunnel for laying the pipeline is excavated and formed, and the excavating wheel 6 is driven by the tractor to move along the excavation line, so that the tunnel is gradually formed, and at the same time, the soil collecting bucket 12 and the storage box 19 fall into the tunnel and follow the movement, and the splashing of the excavated soil is blocked by the arc plate 10 and the retaining plate 11, and at the same time, the soil collecting bucket 12 pushes the collected soil to the center when it moves. The soil is gathered in the space, and the first motor 17 is started to drive the rotating shaft 14 to rotate, so that the rotating shaft 14 drives the spiral conveying rod 15 and the spiral drill bit 16 to rotate simultaneously, and the spiral drill bit 16 breaks the large soil clods to prevent the soil clods from being too large to affect the feeding, so that the soil enters the inside of the feeding barrel 13 along the gap, and the spiral conveying rod 15 transmits the soil upward and falls from the inside of the discharge port 18 into the inside of the storage box 19. Because the storage box 19 is fixedly connected with a soil dividing plate 20, the soil falls on the soil dividing plate 20 and is guided to both sides by the soil dividing plate 20. The soil falls from the discharge troughs 45 on both sides to both sides of the storage box 19, which is conducive to rapid excavation and the transmission of the excavated soil to prevent piling, which is convenient for the subsequent construction of retaining walls, realizing the integrated operation of excavation, soil crushing and soil transportation, and significantly improving the efficiency of trench excavation.

[0045] When the lifting plate 25 moves up and down, the lifting plate 25 pushes the hinged rods 29 on both sides to straighten, thereby causing the two hinged rods 29 to push the support blocks 30 and the side ramming plates 31 on both sides to move to both sides, so that the two side ramming plates 31 will be guided to both sides by the guide plates 48 and push the soil toward the two side walls of the tunnel. When the lifting plate 25 moves up and down, it drives the side ramming plates 31 on both sides to push cyclically toward the two sides of the tunnel, compacting the soil against the tunnel wall to form a retaining wall, preventing soil from scattering, and facilitating subsequent pipe laying.

[0046] When the reciprocating screw rod 24 drives the lifting plate 25 to descend, the lifting plate 25 moves to the top of the clamping block 42, so that the lifting plate 25 pushes the clamping block 42 to shrink toward the inner side of the sliding groove inside the fixed plate 21, squeezing the second spring 43, and then the clamping block 42 is disengaged from the clamping sleeve 44. When the clamping block 42 is clamped with the clamping sleeve 44, because the reciprocating screw rod 24 is descending, the reciprocating screw rod 24 compresses the first spring 27. At this time, the tamping plate 28 and the slide rod 26 lose their limit. Therefore, the elastic force of the first spring 27 plus the deadweight of the tamping plate 28 causes the tamping plate 28 to smash down and compact the soil at the bottom layer, which is convenient for subsequent pipeline laying. When the reciprocating screw rod 24 rises When the reciprocating screw 24 is lowered, the limit block 34 is driven to rise, and the limit block 34 is driven to rise the support rod 33 and the tamping plate 28, so that the tamping plate 28 drives the clamping sleeve 44 to re-engage with the clamping block 42, supporting and limiting the tamping plate 28. When the reciprocating screw 24 is lowered again, the above steps are repeated to compact the three tunnel walls in the tunnel, thereby improving the stability of the tunnel and facilitating the subsequent pouring of concrete or direct laying of pipelines. The synchronous tamping of the three side walls of the trench is completed at the same time as excavation to form a stable retaining wall, effectively preventing collapse. The automatic lifting rammer design is adopted, and the mechanism linkage is used to realize the periodic heavy hammer tamping of the lower soil, providing high-density support for the pipeline foundation.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A retaining and excavating device for laying heating pipes, characterized by: The invention comprises a connecting beam (1), wherein one side of the connecting beam (1) is fixedly connected to a lower support arm (2), the top of the lower support arm (2) is integrally formed with an upper support arm (3), the bottom end of the lower support arm (2) is hinged to a swing arm (4), the bottom end of the swing arm (4) is fixedly connected to a power box (5), both ends of the power box (5) are equipped with excavating wheels (6), the outer side of the swing arm (4) is fixedly connected to an arc plate (10), the bottom of the arc plate (10) is hinged to a retaining plate (11), the bottom of the retaining plate (11) is fixedly connected to a soil collecting bucket (12), the interior of the soil collecting bucket (12) is fixedly connected to a feeding tube (13), the feeding tube ( 13) A material storage box (19) is fixedly connected to the outer side of the rear end, a support plate (22) is fixedly connected to the rear side of the top of the material storage box (19), a fixed sleeve (23) is fixedly connected to the inside of the support plate (22), a rotating sleeve (37) is rotatably connected to the inside of the fixed sleeve (23), a reciprocating screw (24) is slidably connected to the inside of the rotating sleeve (37), a lifting plate (25) is rotatably connected to the bottom end of the reciprocating screw (24), a sliding rod (26) is slidably connected to the inside of the reciprocating screw (24), a tamping plate (28) is fixedly connected to the bottom end of the sliding rod (26), and side tamping plates (31) are provided on both sides of the lifting plate (25).

2. The earth-retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: The front end of the upper support arm (3) is hinged with an upper hinge plate (9), the bottom of the upper hinge plate (9) is fixedly connected to a hydraulic cylinder (7), the output end of the hydraulic cylinder (7) is fixedly connected to a lower hinge plate (8), and the lower hinge plate (8) is hinged to the top of the swing arm (4).

3. The earth retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: The feeding barrel (13) is rotatably connected to a rotating shaft (14), the outer side of the rotating shaft (14) is fixedly connected to a spiral conveying rod (15), the bottom end of the rotating shaft (14) is fixedly connected to a spiral drill bit (16), the top end of the feeding barrel (13) is fixedly connected to a first motor (17), the output end of the first motor (17) is fixedly connected to the top end of the rotating shaft (14), the spiral drill bit (16) is arranged inside the soil collecting bucket (12), and a discharge port (18) is opened at the bottom of the top end of the feeding barrel (13), and the discharge port (18) is arranged inside the storage box (19).

4. The earth retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: The bottom end of the storage box (19) is fixedly connected to a soil dividing plate (20), and discharge grooves (45) are provided on both sides of the storage box (19). The rear side of the storage box (19) is fixedly connected to a fixed plate (21), and a sliding groove is provided at the bottom end of the fixed plate (21). A clamping block (42) is slidably connected to the sliding groove of the fixed plate (21), and a second spring (43) is fixedly connected to the rear side of the clamping block (42). The rear end of the second spring (43) is fixedly connected to the inner wall of the sliding groove of the fixed plate (21).

5. The earth retaining and excavating equipment for laying heating pipes according to claim 4, characterized in that: A clamping sleeve (44) is fixedly connected to the top of the tamping plate (28), the clamping block (42) is clamped to the clamping sleeve (44), and the top and bottom of the clamping block (42) are both configured as arc-shaped surfaces.

6. The earth retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: The top of the fixed sleeve (23) is fixedly connected to a second motor (41), the output end of the second motor (41) passes through the top wall of the fixed sleeve (23) and is rotatably connected to the fixed sleeve (23), the bottom end of the output end of the second motor (41) is fixedly connected to the top of the rotating sleeve (37), both sides of the interior of the rotating sleeve (37) are integrally formed with limiting plates (38), both sides of the reciprocating screw (24) are provided with limiting grooves (39), the two limiting plates (38) are respectively slidably connected to the inside of the two limiting grooves (39) and are adapted to the two limiting grooves (39), the bottom end of the fixed sleeve (23) is fixedly connected to a threaded sleeve (40), the reciprocating screw (24) passes through the threaded sleeve (40) and is threadedly connected to the threaded sleeve (40).

7. The earth retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: The top of the slide rod (26) is fixedly connected to a first spring (27), and the top of the first spring (27) is fixedly connected to the top of the inner wall of the reciprocating screw rod (24). Both sides of the bottom of the support plate (22) are fixedly connected to telescopic rods (32), and the bottom ends of the two telescopic rods (32) are fixedly connected to the top of the lifting plate (25).

8. The earth retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: Both sides of the top of the tamping plate (28) are fixedly connected to support rods (33), both of the support rods (33) pass through the lifting plate (25) and are slidably connected to the lifting plate (25), and the tops of the two support rods (33) are fixedly connected to limit blocks (34), and both ends of the top of the tamping plate (28) are fixedly connected to the side of the storage box (19) with guide plates (48).

9. The earth retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: Both ends of the lifting plate (25) are hinged with hinged rods (29), and the ends of the two hinged rods (29) away from the lifting plate (25) are hinged with support blocks (30), and the two support blocks (30) are fixedly connected to the two side tamping plates (31) respectively. Both sides of the storage box (19) are fixedly connected with L-shaped plates (35), and the opposite sides of the two side tamping plates (31) are fixedly connected with multiple guide rods (36), and the multiple guide rods (36) respectively penetrate the two L-shaped plates (35) and are slidably connected to the two L-shaped plates (35).

10. The earth retaining and excavating equipment for laying heating pipes according to claim 1, characterized in that: A support plate (46) is fixedly connected to the rear side of the storage box (19), and support wheels (47) are rotatably connected to both sides of the support plate (46).

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