Ground digging equipment for civil engineering

Abstract

The present invention discloses a ground hole digging equipment for civil engineering, including a vehicle body plate, a digging arm mechanism is provided on the top surface of the vehicle body plate, and the digging arm mechanism includes a first main arm body, the end of the first main arm body is fixedly connected to one end of the second main arm body, and the other end of the second main arm body is rotatably connected to an extension arm; the soil surface treatment structure installed by the sub-arm structure of the present invention can break the ground soil, and the sub-arm structure can store or unfold the soil surface treatment structure. When encountering a situation where the ground is hard and the bucket structure is difficult to dig the soil, the soil surface treatment structure is directly unfolded, and the soil surface is broken by rotating the soil breaking head and the spiral knife. After completion, the sub-arm structure stores the soil surface treatment structure, and the hole digging operation can be directly carried out, which is more efficient; a digging tooth assembly is provided on the bucket structure of the present invention, and the square column can be pulled out by removing the first nut, so that the digging tooth assembly can be completely removed, which is convenient for selecting a digging tooth assembly equipped with different types of bucket teeth according to the soil quality, which is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering hole digging equipment, in particular to ground hole digging equipment for civil engineering. Background Art

[0002] In civil engineering, ground excavation is a common construction operation, primarily involving vertical excavators, commonly known as excavators or diggers. For example, Chinese invention patent application publication number CN120211340A discloses an excavator that enables more accurate calculation of the weight of an object moved to a specified location. This excavator moves an object to a specified location by repeating a series of actions, including digging and dumping. However, during excavation, the ground can sometimes be hard, making it difficult for the bucket to dig. In such cases, a breaker hammer is currently installed on the excavator to break up the ground before digging. For example, Chinese invention patent application publication number CN106854880A discloses a drill rig attached to the bucket arm of an excavator equipped with a breaker hammer. The rig includes a bottom slide, a drill slide, a support block, a support block cylinder, a connecting frame, a rotating shaft, a drill body, and a rock splitting pipe. The bottom slide is connected to the bucket arm by a support block. The support block cylinder controls the bottom slide to open outward or attach to the bucket arm. The drill rig slide is installed in the bottom slide. The drill rig body is connected to the drill rig slide via a connecting frame and a rotating shaft, and the splitting pipe is installed on the shell of the drill rig body. The upper end of the drill rig body has a motor, a capstan, and a pull rope to control the lowering and raising of the splitting pipe. However, this construction method has the following drawbacks:

[0003] During the hole excavation construction, if the ground is hard and the breaker hammer needs to be replaced, the bucket needs to be removed and the breaker hammer needs to be installed. After the ground is broken, the bucket needs to be replaced again. The disassembly and assembly back and forth is very troublesome and greatly affects efficiency.

[0004] For this reason, we propose a ground hole digging equipment for civil engineering to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a ground hole digging device for civil engineering to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a ground excavation device for civil engineering, comprising a vehicle body plate, a digging arm mechanism provided on the top surface of the vehicle body plate, the digging arm mechanism comprising a first main arm body, an end portion of the first main arm body being fixedly connected to one end of a second main arm body, the other end of the second main arm body being rotatably connected to an extension arm, a bucket structure being provided at the end of the extension arm, a sub-arm structure being provided on the side wall of the extension arm, and a soil surface processing structure being provided on the sub-arm structure;

[0007] The soil surface processing structure includes a silo shell, a bottom plate is provided on the bottom surface of the silo shell, and a plurality of soil-breaking units are evenly arranged on the bottom plate. The side wall of the silo shell is fixedly embedded with a U-shaped seat, and the sixth hydraulic push rod is fixedly connected to the U-shaped seat, and the bottom end of the output end of the sixth hydraulic push rod is fixedly connected to the top surface of the bottom plate. The soil-breaking unit includes a column block, and a rotating column is vertically rotated on the column block. A hexagonal socket is provided on the bottom surface of the rotating column, and a hexagonal column is vertically inserted into the hexagonal socket. The bottom surface of the hexagonal column is fixedly connected to a bottom cone, and the bottom surface of the bottom cone is fixedly connected to a soil-breaking head, and a spiral knife is fixedly connected to the circumference of the soil-breaking head.

[0008] Preferably, the column blocks of two adjacent earth-breaking units are fixedly connected to each other, a first socket is horizontally provided at the bottom end of the rotating column, a second socket is horizontally provided at the bottom end of the hexagonal column, a bolt is horizontally sleeved in the second socket and the first socket, the end of the bolt is threadedly connected to a second nut, an inner cavity is provided inside the magazine shell, a drive magazine is vertically slidably arranged in the inner cavity, the bottom surface of the drive magazine is fixedly connected to the top surfaces of the column blocks of multiple earth-breaking units, the top end of the rotating column passes through the bottom surface of the drive magazine, the rotating column is rotatably sleeved to the drive magazine, the center of the top end of the rotating column is fixed to the top shaft, and the top shaft is located inside the drive magazine and is fixedly sleeved to the drive gear.

[0009] Preferably, the driving compartment is located between the driving gears of multiple earth-breaking units and is rotatably connected to multiple auxiliary gears, the auxiliary gears are meshed with the driving gears, one side of the middle of the driving compartment is fixedly connected to the side shell, the interior of the side shell is communicated with the interior of the driving compartment, the side shell is vertically rotatably sleeved with a ball spline, the ball spline is located inside the side shell and is fixedly sleeved with the driving gear, the driving gear is meshed with the auxiliary gear located in the middle, the bottom surface of the inner cavity is located below the side shell and is fixedly connected to the hydraulic motor and the reducer, the shaft end of the hydraulic motor is fixedly connected to the output end of the reducer, the output end of the reducer is fixedly connected to the spline long shaft, and the spline long shaft is slidably sleeved with the ball spline.

[0010] Preferably, two guide grooves are provided on both sides of the earth-breaking unit, two guide blocks are fixed at both ends of the driving bin, the guide blocks are vertically slidably connected to the guide grooves, a plurality of guide rods are vertically fixed on the guide grooves, a plurality of guide holes are vertically provided on the guide blocks, the guide rods are plugged into the guide holes, two guide sleeves are fixed to the side walls at both ends of the driving bin, two guide columns are vertically fixed at the positions corresponding to the two guide sleeves in the inner cavity, the guide sleeves are slidably sleeved on the guide columns, a bottom opening is provided on the bottom surface of the bin shell, the column block is vertically slidably sleeved on the bottom opening, the bottom plate is fixedly sleeved with the column blocks of a plurality of earth-breaking units, a plurality of plug-in columns are vertically fixed to the top surface of the edge of the bottom plate, a plurality of guide long holes are provided on the bottom surface of the bin shell corresponding to the positions of the multiple plug-in columns, the plug-in columns are slidably inserted into the guide long holes, and a heat dissipation port is provided on the side wall of the bin shell corresponding to the position of the hydraulic motor.

[0011] Preferably, the bucket structure includes a bucket body, a plug plate fixed to the bottom end of the bucket body, a tooth assembly is sleeved on the plug plate, two side strips are fixed to both sides of the bucket body opening, and two second hinges are fixed to the top surface of the bucket body.

[0012] Preferably, the top and bottom surfaces of the plug plate are evenly fixed with multiple protrusions, the tooth excavating assembly includes a mounting plate, a slot is provided on one side of the mounting plate, and multiple bucket teeth are fixed on the other side of the mounting plate, the slot is plugged into the plug plate, and the top and bottom surfaces of the slot are evenly provided with multiple embedding grooves, and the protrusions are inserted into the embedding grooves, and two end strips are provided on both sides of the mounting plate, six square long holes are evenly and horizontally provided on the plug plate, and six square short holes are provided at the positions of the six square long holes at both ends of the mounting plate, each of the end strip plates is fixed with three square columns, and the ends of the square columns are fixed with threaded heads, the three square columns on one of the end strip plates are plugged into three of the square long holes and three of the square short holes, and the three square columns on the other end strip plate are plugged into the other three square long holes and the other three square short holes, and three through holes are horizontally provided on the end strip plates, and the threaded head on one of the end strip plates passes through the through hole on the other end strip plate, and the end of the threaded head is threadedly connected to the first nut.

[0013] Preferably, the sub-arm structure includes two first hinges, the two first hinges are fixed on the side walls of the bottom ends of the extending arms, a sixth column is horizontally fixed between the bottoms of the two first hinges, a fourth column is horizontally fixed between the tops of the two first hinges, the sixth column is rotatably sleeved on one end of the second frame plate, the bottom surface of the second frame plate is fixed to the base frame, and the base frame is fixed to the top surface of the warehouse shell.

[0014] Preferably, the fourth column is rotatably sleeved on one end of two second connecting rods, the other ends of the two second connecting rods are rotatably sleeved on the fifth column, the middle part of the fifth column is rotatably sleeved on the fourth rotating sleeve, the second frame plate free end is provided with a second port, the second frame plate free end is horizontally fixed to the eighth column, the eighth column is located at the second port position and rotatably sleeved on the second rotating sleeve, the fourth rotating sleeve is fixed to the end of the fourth hydraulic push rod, the output end of the fourth hydraulic push rod is fixed to the second rotating sleeve, two short columns are fixed on both sides of the extension arm, the short columns are rotatably sleeved on the fifth rotating sleeve, the two ends of the fifth column are rotatably sleeved on two third rotating sleeves, the fifth rotating sleeve is fixed to the end of the fifth hydraulic push rod, and the output end of the fifth hydraulic push rod is fixed to the third rotating sleeve.

[0015] Preferably, the bottom end of the extending arm is rotatably connected to the first column and the second column, the second column is located above the first column, the two ends of the first column are rotatably connected to one end of the two second hinges, the other ends of the two second hinges are rotatably connected to the seventh column, the two ends of the second column are rotated to connect one end of the two first connecting rods, the other ends of the two first connecting rods are rotatably connected to the third column, the seventh column is rotatably connected to one end of the first frame plate, the other end of the first frame plate is provided with a first port, and the end of the first frame plate is rotatably connected to both sides of the third column.

[0016] Preferably, the top surface of the vehicle body plate is fixedly connected to the first hinge seat and the second hinge seat, the first main arm body and the second main arm body are an integrated structure, the bottom position of the connection between the first main arm body and the second main arm body is fixedly connected to the third hinge seat, the bottom end of the first main arm body is rotatably connected to the first hinge seat, the second hinge seat is rotatably connected to the end of the first hydraulic push rod, the output end of the first hydraulic push rod is rotatably connected to the third hinge seat, the top surface of the second main arm body near one end of the first main arm body is fixedly connected to the fourth hinge seat, the extending arm is fixedly connected to the fifth hinge seat near one end of the second main arm body, the fourth hinge seat is rotatably connected to the end of the second hydraulic push rod, the output end of the second hydraulic push rod is rotatably connected to the fifth hinge seat, the side wall of the extending arm near one end of the second main arm body is fixedly connected to the sixth hinge seat, the sixth hinge seat is rotatably connected to the end of the third hydraulic push rod, the output end of the third hydraulic push rod is fixedly connected to the first rotating sleeve, and the first rotating sleeve is rotatably sleeved in the middle of the third column.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The soil surface treatment structure installed by the sub-arm structure of the present invention can break the ground soil. The sub-arm structure can store or unfold the soil surface treatment structure. When the ground is hard and it is difficult for the bucket structure to dig the soil, the soil surface treatment structure can be directly unfolded, and the soil breaking head and the spiral knife are used to rotate to break the soil surface. After completion, the sub-arm structure will store the soil surface treatment structure, and the hole digging operation can be carried out directly, which is more efficient. A digging tooth assembly is provided on the bucket structure of the present invention. By removing the first nut, the square column can be pulled out. In this way, the digging tooth assembly can be completely removed, which is convenient for selecting a digging tooth assembly equipped with different types of bucket teeth according to the soil quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the main body in the first and second embodiments of the present invention;

[0020] Figure 2 Schematic diagram of the structure of the digging arm mechanism in the first and second embodiments of the present invention;

[0021] Figure 3 Schematic diagram of the sub-arm structure in the first and second embodiments of the present invention;

[0022] Figure 4 Schematic diagram of the soil surface treatment structure in the first and second embodiments of the present invention;

[0023] Figure 5 It is a schematic diagram of a vertical cross-section of the soil surface treatment structure in the first and second embodiments of the present invention;

[0024] Figure 6 This is a schematic diagram of the cross-section structure of the earth-breaking unit in the second embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the cross-section structure of the drive compartment in the second embodiment of the present invention;

[0026] Figure 8 This is a horizontal cross-sectional structural diagram of the soil surface treatment structure in the second embodiment of the present invention;

[0027] Figure 9 This is a structural diagram of the bucket structure in the second embodiment of the present invention;

[0028] Figure 10 This is a structural diagram of the digging tooth assembly in the second embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the explosion structure of the tooth assembly and the insert plate in the second embodiment of the present invention.

[0030] In the figure: 1, vehicle body plate; 2, digging arm mechanism; 3, bucket structure; 4, soil surface treatment structure; 11, first hinge seat; 12, second hinge seat; 21, first main arm body; 22, second main arm body; 23, extension arm; 24, sub-arm structure; 25, third hinge seat; 26, first hydraulic push rod; 27, fourth hinge seat; 28, fifth hinge seat; 29, second hydraulic push rod; 210, sixth hinge seat; 211, first column; 212, second column; 213, first connecting rod; 214, third column; 215, third hydraulic push rod; 216, first rotating sleeve; 217, first Frame; 218, first port; 241, first hinge; 242, sixth column; 243, fourth column; 244, second frame; 245, bottom frame; 246, second port; 247, second rotating sleeve; 248, third rotating sleeve; 249, second connecting rod; 2410, fifth column; 2411, fourth rotating sleeve; 2412, fourth hydraulic push rod; 2413, short column; 2414, fifth rotating sleeve; 2415, fifth hydraulic push rod; 2416, eighth column; 31, bucket; 32, second hinge; 33, seventh column; 34, digging tooth assembly; 35, Side strip; 36, insert plate; 37, protrusion; 38, end strip; 39, square column; 310, threaded head; 311, through hole; 312, first nut; 313, square long hole; 341, mounting plate; 342, slot; 343, embedded groove; 344, bucket tooth; 345, square short hole; 41, bin shell; 42, bottom plate; 43, earth-breaking unit; 44, inner cavity; 45, bottom opening; 46, drive bin; 47, auxiliary gear; 48, hydraulic motor; 49, reducer; 410, side shell; 411, ball spline; 412, driving gear; 413, spline long shaft; 414. Guide groove; 415. Guide block; 416. Guide rod; 417. Guide hole; 418. Guide column; 419. Guide sleeve; 420. Insert column; 421. Long guide hole; 422. Heat dissipation port; 423. U-shaped seat; 424. Sixth hydraulic push rod; 431. Column block; 432. Rotating column; 433. Hexagonal socket; 434. Hexagonal column; 435. Bottom cone; 436. Breaking head; 437. Spiral knife; 438. Top shaft; 439. Drive gear; 4310. First socket; 4311. Second socket; 4312. Bolt; 4313. Second nut. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1:

[0033] See also Figure 1-6 The present invention provides a technical solution: a ground excavation equipment for civil engineering, comprising a vehicle body plate 1, a digging arm mechanism 2 is provided on the top surface of the vehicle body plate 1, the digging arm mechanism 2 comprises a first main arm body 21, an end of the first main arm body 21 is fixedly connected to one end of a second main arm body 22, and the other end of the second main arm body 22 is rotatably connected to an extension arm 23, a bucket structure 3 is provided at the end of the extension arm 23, a sub-arm structure 24 is provided on the side wall of the extension arm 23, and a soil surface processing structure 4 is provided on the sub-arm structure 24. The soil surface processing structure 4 installed by the sub-arm structure 24 can break the ground soil, and the sub-arm structure 24 can store or unfold the soil surface processing structure 4. When the ground is hard and the bucket structure 3 is difficult to dig, the soil surface processing structure 4 is directly unfolded to break the soil surface. After completion, the sub-arm structure 24 will store the soil surface processing structure 4, and the digging operation can be directly carried out, which is more efficient.

[0034] The soil surface processing structure 4 includes a warehouse shell 41, and a bottom plate 42 is provided on the bottom surface of the warehouse shell 41. A plurality of earth-breaking units 43 are evenly arranged on the bottom plate 42. The side wall of the warehouse shell 41 is fixedly embedded with a U-shaped seat 423. The U-shaped seat 423 is fixedly connected to the sixth hydraulic push rod 424. The bottom end of the output end of the sixth hydraulic push rod 424 is fixedly connected to the top surface of the bottom plate 42. The earth-breaking unit 43 includes a column block 431. The column block 431 is vertically rotated to sleeve a rotating column 432. The bottom surface of the rotating column 432 is provided with a hexagonal socket 433. The hexagonal column 434 is vertically inserted into the hexagonal socket 433. The bottom surface of the hexagonal column 434 is fixedly connected to a bottom cone 435. The bottom surface of the bottom cone 435 is fixedly connected to a earth-breaking head 436. The earth-breaking head 436 is fixedly connected to a spiral knife 437 on the side. The earth-breaking head 436 can be used to rotate to break the ground, and can also cut off objects such as tree roots that affect the digging operation.

[0035] Example 2:

[0036] See also Figure 1-11, which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The column blocks 431 of the two adjacent earth-breaking units 43 are fixed to each other. The bottom end of the rotating column 432 is horizontally provided with a first insertion hole 4310. The bottom end of the hexagonal column 434 is horizontally provided with a second insertion hole 4311. The second insertion hole 4311 and the first insertion hole 4310 are horizontally sleeved with a bolt 4312. The end of the bolt 4312 is threadedly connected to the second nut 4313. The interior of the silo 41 is provided with an inner cavity 44. The inner cavity 44 A drive bin 46 is provided for vertical sliding inside, and the bottom surface of the drive bin 46 is fixedly connected to the top surfaces of the column blocks 431 of multiple earth-breaking units 43, and the top end of the rotating column 432 passes through the bottom surface of the drive bin 46. The rotating column 432 rotates and sleeves the drive bin 46, and the top center of the rotating column 432 is fixedly connected to the top shaft 438. The top shaft 438 is located in the internal position of the drive bin 46 and is fixedly sleeved with the drive gear 439. The earth-breaking head 436 is a wearing part, and the earth-breaking head 436 can be removed and replaced separately by removing the bolt 4312.

[0037] The driving compartment 46 is located between the driving gears 439 of multiple earth-breaking units 43 and is rotatably connected to multiple auxiliary gears 47. The auxiliary gears 47 are meshed with the driving gears 439. One side of the middle part of the driving compartment 46 is fixedly connected to the side shell 410. The interior of the side shell 410 is connected to the interior of the driving compartment 46. The ball spline 411 is vertically rotated and sleeved on the side shell 410. The ball spline 411 is located in the interior of the side shell 410 and is fixedly sleeved on the driving gear 412. The driving gear 412 is meshed with the auxiliary gear 47 located in the middle. The bottom surface of the inner cavity 44 is located below the side shell 410 and is fixedly connected to the hydraulic motor 48 and the reducer 49. The rotating shaft end of the hydraulic motor 48 is fixedly connected to the output end of the reducer 49. The output end of the reducer 49 is fixedly connected to the spline long shaft 413. The spline long shaft 413 is slidably sleeved on the ball spline 411. The sixth hydraulic push rod 424 can drive multiple earth-breaking units 43 to press down, so as to facilitate breaking the ground.

[0038] Two guide grooves 414 are provided on both sides of the earth-breaking unit 43, two guide blocks 415 are fixed at both ends of the driving chamber 46, the guide blocks 415 are vertically slidably connected to the guide grooves 414, a plurality of guide rods 416 are vertically fixed on the guide grooves 414, a plurality of guide holes 417 are vertically provided on the guide blocks 415, the guide rods 416 are plugged into the guide holes 417, two guide sleeves 419 are fixed to the side walls at both ends of the driving chamber 46, two guide posts 418 are vertically fixed to the positions of the two guide sleeves 419 in the inner cavity 44, the guide sleeves 419 are slidably sleeved on the guide posts 418, and the chamber shell 41 A bottom opening 45 is provided on the bottom surface, and a column block 431 is vertically slidably sleeved on the bottom opening 45. The bottom plate 42 is fixedly sleeved on the column blocks 431 of multiple earth-breaking units 43. Multiple plug-in columns 420 are vertically fixedly connected to the top surface at the edge of the bottom plate 42. Multiple guide long holes 421 are provided on the bottom surface of the bin shell 41 corresponding to the positions of the multiple plug-in columns 420. The plug-in columns 420 are slidably inserted into the guide long holes 421. A heat dissipation port 422 is provided on the side wall of the bin shell 41 corresponding to the position of the hydraulic motor 48. The hydraulic motor 48 can drive the earth-breaking heads 436 on multiple earth-breaking units 43 to rotate synchronously.

[0039] The bucket structure 3 includes a bucket body 31 , a plug plate 36 is fixed to the bottom end of the bucket body 31 , a tooth assembly 34 is sleeved on the plug plate 36 , two side strips 35 are fixed to both sides of the opening of the bucket body 31 , and two second hinges 32 are fixed to the top surface of the bucket body 31 .

[0040] The top and bottom surfaces of the insert plate 36 are evenly fixed with a plurality of protrusions 37. The tooth assembly 34 includes a mounting plate 341. A slot 342 is provided on one side of the mounting plate 341. A plurality of bucket teeth 344 are fixed on the other side of the mounting plate 341. The slot 342 is inserted into the insert plate 36. A plurality of embedding grooves 343 are evenly provided on the top and bottom surfaces of the slot 342. The protrusions 37 are inserted into the embedding grooves 343. Two end strips 38 are provided on both sides of the mounting plate 341. Six square long holes 313 are evenly and horizontally provided on the insert plate 36. Six square short holes 345 are provided at the two ends of the mounting plate 341 at the positions corresponding to the six square long holes 313. Three square columns 39 are fixed to the side walls of each end strip 38. The ends of the square columns 39 are fixed to the threaded heads 310. The three square columns 39 on one end strip plate 38 are inserted into three of the square long holes 313 and three of the square short holes 345, and the three square columns 39 on the other end strip plate 38 are inserted into the other three square long holes 313 and the other three square short holes 345. Three through holes 311 are horizontally opened on the end strip plate 38. The threaded head 310 on one end strip plate 38 passes through the through hole 311 on the other end strip plate 38. The end of the threaded head 310 is threadedly connected to the first nut 312. By removing the first nut 312, the square column 39 can be pulled out, so that the entire digging tooth assembly 34 can be removed, which is convenient for selecting the digging tooth assembly 34 equipped with different types of bucket teeth 344 according to the soil type.

[0041] The sub-arm structure 24 includes two first hinges 241, and the two first hinges 241 are fixed to the side wall of the bottom end of the extending arm 23. The sixth column 242 is horizontally fixed between the bottoms of the two first hinges 241, and the fourth column 243 is horizontally fixed between the tops of the two first hinges 241. The sixth column 242 is rotatably sleeved on one end of the second frame plate 244. The bottom surface of the second frame plate 244 is fixed to the base frame 245, and the base frame 245 is fixed to the top surface of the magazine shell 41.

[0042] The fourth column 243 is rotatably connected to one end of the two second connecting rods 249, and the other ends of the two second connecting rods 249 are rotatably connected to the fifth column 2410. The middle part of the fifth column 2410 is rotatably connected to the fourth rotating sleeve 2411. The free end of the second frame plate 244 is provided with a second port 246. The free end of the second frame plate 244 is horizontally fixed to the eighth column 2416. The eighth column 2416 is located at the second port 246 and is rotatably connected to the second rotating sleeve 247. The fourth rotating sleeve 2411 is fixed to the end of the fourth hydraulic push rod 2412. The fourth hydraulic push rod 2412 outputs The output end is fixedly connected to the second rotating sleeve 247, and two short columns 2413 are fixedly connected on both sides of the extending arm 23. The short column 2413 is rotatably connected to the fifth rotating sleeve 2414. The two ends of the fifth column 2410 are rotatably connected to the two third rotating sleeves 248. The fifth rotating sleeve 2414 is fixedly connected to the end of the fifth hydraulic push rod 2415, and the output end of the fifth hydraulic push rod 2415 is fixedly connected to the third rotating sleeve 248. The soil surface treatment structure 4 is driven to move by the fifth hydraulic push rod 2415 and the fourth hydraulic push rod 2412, which is convenient for storage or deployment, and can also be adjusted in position to facilitate breaking the ground.

[0043] The bottom end of the extending arm 23 is rotatably connected to the first column 211 and the second column 212. The second column 212 is located above the first column 211. The two ends of the first column 211 are rotatably connected to one end of the two second hinges 32. The other ends of the two second hinges 32 are rotatably connected to the seventh column 33. The two ends of the second column 212 are rotated to connect one end of the two first connecting rods 213. The other ends of the two first connecting rods 213 are rotatably connected to the third column 214. The seventh column 33 is rotatably connected to one end of the first frame plate 217. The other end of the first frame plate 217 has a first port 218. The end of the first frame plate 217 is rotatably connected to both sides of the third column 214.

[0044] The top surface of the vehicle body plate 1 is fixed to the first hinge seat 11 and the second hinge seat 12. The first main arm body 21 and the second main arm body 22 are an integrated structure. The bottom position of the connection between the first main arm body 21 and the second main arm body 22 is fixed to the third hinge seat 25. The bottom end of the first main arm body 21 is rotatably connected to the first hinge seat 11, and the second hinge seat 12 is rotatably connected to the end of the first hydraulic push rod 26. The output end of the first hydraulic push rod 26 is rotatably connected to the third hinge seat 25. The top surface of the second main arm body 22 near one end of the first main arm body 21 is fixed to the fourth hinge seat 2 7. The extending arm 23 is fixedly connected to the fifth hinge seat 28 at one end close to the second main arm body 22, and the fourth hinge seat 27 is rotatably connected to the end of the second hydraulic push rod 29. The output end of the second hydraulic push rod 29 is rotatably connected to the fifth hinge seat 28. The side wall of the extending arm 23 is fixedly connected to the sixth hinge seat 210 at one end close to the second main arm body 22. The sixth hinge seat 210 is rotatably connected to the end of the third hydraulic push rod 215. The output end of the third hydraulic push rod 215 is fixedly connected to the first rotating sleeve 216. The first rotating sleeve 216 is rotatably sleeved on the middle part of the third column 214.

[0045] The body plate 1 of the present invention is set on the body of the excavator. The operator drives the bucket structure 3 to move by operating the digging arm mechanism 2 to perform the digging action. When the ground is hard and difficult to dig, the sub-arm structure 24 is used to unfold the soil surface processing structure 4 so that the soil breaking head 436 contacts the soil surface. The soil breaking head 436 rotates to break the soil. After completion, the sub-arm structure 24 is used to retract the soil surface processing structure 4 back to the side wall position of the extended arm 23, and the bucket structure 3 is continued to be used for digging operations. The soil surface processing structure 4 installed by the sub-arm structure 24 of the present invention can break the ground soil, and the sub-arm structure 24 can The surface treatment structure 4 is stored or unfolded. When the ground is hard and the bucket structure 3 is difficult to dig, the soil surface treatment structure 4 is directly unfolded, and the soil surface is broken by rotating the soil breaking head 436 and the spiral knife 437. After completion, the sub-arm structure 24 stores the soil surface treatment structure 4, and the digging operation can be carried out directly, which is more efficient. A digging tooth assembly 34 is provided on the bucket structure 3 of the present invention. By removing the first nut 312, the square column 39 can be pulled out, so that the entire digging tooth assembly 34 can be removed, which is convenient for selecting a digging tooth assembly 34 equipped with different types of bucket teeth 344 according to the soil quality.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A ground hole digging device for civil engineering, comprising a vehicle body plate (1), characterized in that: The top surface of the vehicle body plate (1) is provided with a digging arm mechanism (2), and the digging arm mechanism (2) includes a first main arm body (21), an end of the first main arm body (21) is fixedly connected to one end of a second main arm body (22), and the other end of the second main arm body (22) is rotatably connected to an extension arm (23), a bucket structure (3) is provided at the end of the extension arm (23), a sub-arm structure (24) is provided on the side wall of the extension arm (23), and a soil surface processing structure (4) is provided on the sub-arm structure (24); The soil surface processing structure (4) includes a silo (41), the bottom surface of the silo (41) is provided with a bottom plate (42), a plurality of soil breaking units (43) are evenly sleeved on the bottom plate (42), the side wall of the silo (41) is fixedly embedded in a U-shaped seat (423), a sixth hydraulic push rod (424) is fixedly connected to the U-shaped seat (423), the bottom end of the output end of the sixth hydraulic push rod (424) is fixedly connected to the top surface of the bottom plate (42), and the soil breaking unit (43) includes A column block (431) is provided, wherein a rotating column (432) is vertically rotatably sleeved on the column block (431), a hexagonal socket (433) is provided on the bottom surface of the rotating column (432), a hexagonal column (434) is vertically inserted into the hexagonal socket (433), the bottom surface of the hexagonal column (434) is fixedly connected to a bottom truncated cone (435), the bottom surface of the bottom truncated cone (435) is fixedly connected to a soil-breaking head (436), and a spiral knife (437) is fixedly connected to the circumference of the soil-breaking head (436).

2. The ground digging equipment for civil engineering according to claim 1, characterized in that: The column blocks (431) of the two adjacent earth-breaking units (43) are fixed to each other, the bottom end of the rotating column (432) is provided with a first plug hole (4310) horizontally, the bottom end of the hexagonal column (434) is provided with a second plug hole (4311) horizontally, the second plug hole (4311) and the first plug hole (4310) are horizontally sleeved with a bolt (4312), the end of the bolt (4312) is threadedly connected to a second nut (4313), and the interior of the housing (41) is provided with an inner cavity (44 ), a driving chamber (46) is vertically slidably provided in the inner cavity (44), the bottom surface of the driving chamber (46) is fixedly connected to the top surface of the column block (431) of the plurality of earth-breaking units (43), the top end of the rotating column (432) passes through the bottom surface of the driving chamber (46), the rotating column (432) is rotatably connected to the driving chamber (46), the top center of the rotating column (432) is fixedly connected to the top shaft (438), and the top shaft (438) is located inside the driving chamber (46) and fixedly connected to the driving gear (439).

3. The ground digging equipment for civil engineering according to claim 2, characterized in that: The driving chamber (46) is located between the driving gears (439) of the plurality of earth-breaking units (43) and is rotatably connected to a plurality of auxiliary gears (47). The auxiliary gears (47) are meshed with the driving gears (439). A side shell (410) is fixed to one side of the middle of the driving chamber (46). The interior of the side shell (410) is communicated with the interior of the driving chamber (46). A ball spline (411) is vertically rotatably sleeved on the side shell (410). The ball spline (411) is located on the side shell (410). 0) The internal position is fixedly sleeved with a driving gear (412), the driving gear (412) is meshed with the auxiliary gear (47) located in the middle, the bottom surface of the inner cavity (44) is located below the side shell (410) and is fixedly connected to the hydraulic motor (48) and the reducer (49), the rotating shaft end of the hydraulic motor (48) is fixedly connected to the output end of the reducer (49), the output end of the reducer (49) is fixedly connected to the spline long shaft (413), and the spline long shaft (413) is slidably sleeved with the ball spline (411).

4. The ground excavation equipment for civil engineering according to claim 3, characterized in that: Two guide grooves (414) are provided on both sides of the earth-breaking unit (43), two guide blocks (415) are fixedly connected at both ends of the driving chamber (46), the guide blocks (415) are vertically slidably connected to the guide grooves (414), a plurality of guide rods (416) are vertically fixedly connected to the guide grooves (414), a plurality of guide holes (417) are vertically provided on the guide blocks (415), the guide rods (416) are plugged into the guide holes (417), two guide sleeves (419) are fixedly connected to the side walls of the driving chamber (46), two guide posts (418) are vertically fixedly connected to the positions of the two guide sleeves (419) in the inner cavity (44), and the guide sleeves (41 9) Slidingly sleeved on the guide column (418), the bottom surface of the silo (41) is provided with a bottom opening (45), the column block (431) is vertically slidably sleeved on the bottom opening (45), the bottom plate (42) is fixedly sleeved with the column blocks (431) of multiple earth-breaking units (43), the top surface of the edge of the bottom plate (42) is vertically fixed with multiple plug-in columns (420), the bottom surface of the silo (41) is provided with multiple guide long holes (421) corresponding to the positions of the multiple plug-in columns (420), the plug-in columns (420) are slidably inserted into the guide long holes (421), and the side wall of the silo (41) is provided with a heat dissipation port (422) corresponding to the position of the hydraulic motor (48).

5. The ground digging equipment for civil engineering according to claim 1, characterized in that: The bucket structure (3) comprises a bucket body (31), a plug plate (36) is fixedly connected to the bottom end of the bucket body (31), a tooth assembly (34) is sleeved on the plug plate (36), two side strips (35) are fixedly connected to both sides of the opening of the bucket body (31), and two second hinges (32) are fixedly connected to the top surface of the bucket body (31).

6. The ground digging equipment for civil engineering according to claim 5, characterized in that: The top and bottom surfaces of the inserting plate (36) are evenly fixed with a plurality of protrusions (37); the digging tooth assembly (34) includes a mounting plate (341); a slot (342) is provided on one side of the mounting plate (341); a plurality of bucket teeth (344) are fixed on the other side of the mounting plate (341); the slot (342) is plugged into the inserting plate (36); a plurality of embedded grooves (343) are evenly provided on the top and bottom surfaces of the slot (342); the protrusions (37) are plugged into the embedded grooves (343); two end strips (38) are provided on both sides of the mounting plate (341); six square long holes (313) are evenly and horizontally provided on the inserting plate (36); six square short holes (344) are provided at the two ends of the mounting plate (341) corresponding to the positions of the six square long holes (313) 5), each end strip plate (38) is fixedly connected to the side wall of three square columns (39), and the ends of the square columns (39) are fixedly connected to the threaded heads (310), the three square columns (39) on one end strip plate (38) are plugged into three of the square long holes (313) and three of the square short holes (345), and the three square columns (39) on the other end strip plate (38) are plugged into the other three square long holes (313) and the other three square short holes (345), and three through holes (311) are horizontally opened on the end strip plate (38), the threaded heads (310) on one of the end strip plates (38) pass through the through holes (311) on the other end strip plate (38), and the ends of the threaded heads (310) are threadedly connected to the first nut (312).

7. The ground digging equipment for civil engineering according to claim 1, characterized in that: The sub-arm structure (24) includes two first hinges (241), the two first hinges (241) are fixed to the side wall of the bottom end of the extending arm (23), the sixth column (242) is horizontally fixed between the bottoms of the two first hinges (241), and the fourth column (243) is horizontally fixed between the tops of the two first hinges (241), the sixth column (242) is rotatably sleeved on one end of the second frame plate (244), the bottom surface of the second frame plate (244) is fixed to the base frame (245), and the base frame (245) is fixed to the top surface of the bin shell (41).

8. The ground digging equipment for civil engineering according to claim 7, characterized in that: The fourth column (243) is rotatably sleeved on one end of two second connecting rods (249), and the other ends of the two second connecting rods (249) are rotatably sleeved on the fifth column (2410). The middle part of the fifth column (2410) is rotatably sleeved on the fourth rotating sleeve (2411). The free end of the second frame plate (244) is provided with a second port (246). The free end of the second frame plate (244) is horizontally fixed to the eighth column (2416). The eighth column (2416) is located at the second port (246) and is rotatably sleeved on the second rotating sleeve (247). The fourth rotating sleeve The sleeve (2411) is fixedly connected to the end of the fourth hydraulic push rod (2412), the output end of the fourth hydraulic push rod (2412) is fixedly connected to the second rotating sleeve (247), the two sides of the extension arm (23) are fixedly connected to two short columns (2413), the short columns (2413) are rotatably connected to the fifth rotating sleeve (2414), the two ends of the fifth column (2410) are rotatably connected to the two third rotating sleeves (248), the fifth rotating sleeve (2414) is fixedly connected to the end of the fifth hydraulic push rod (2415), and the output end of the fifth hydraulic push rod (2415) is fixedly connected to the third rotating sleeve (248).

9. The ground digging equipment for civil engineering according to claim 5, characterized in that: The bottom end of the extending arm (23) is rotatably sleeved with a first column (211) and a second column (212), the second column (212) is located above the first column (211), the two ends of the first column (211) are rotatably sleeved with one end of two second hinges (32), the other ends of the two second hinges (32) are rotatably sleeved with a seventh column (33), the two ends of the second column (212) are rotated to sleeve with one end of two first connecting rods (213), the other ends of the two first connecting rods (213) are rotatably connected to the third column (214), the seventh column (33) is rotatably sleeved with one end of a first frame plate (217), the other end of the first frame plate (217) is provided with a first port (218), and the end of the first frame plate (217) is rotatably sleeved on both sides of the third column (214).

10. The ground digging equipment for civil engineering according to claim 9, characterized in that: The top surface of the vehicle body plate (1) is fixedly connected to the first hinge seat (11) and the second hinge seat (12); the first main arm body (21) and the second main arm body (22) are an integrated structure; the bottom position of the connection between the first main arm body (21) and the second main arm body (22) is fixedly connected to the third hinge seat (25); the bottom end of the first main arm body (21) is rotatably connected to the first hinge seat (11); the second hinge seat (12) is rotatably connected to the end of the first hydraulic push rod (26); the output end of the first hydraulic push rod (26) is rotatably connected to the third hinge seat (25); the top surface of one end of the second main arm body (22) close to the first main arm body (21) is fixedly connected to the fourth hinge seat (25); 7), the extending arm (23) is fixedly connected to the fifth hinge seat (28) at one end close to the second main arm body (22), the fourth hinge seat (27) is rotatably connected to the end of the second hydraulic push rod (29), the output end of the second hydraulic push rod (29) is rotatably connected to the fifth hinge seat (28), the side wall of the extending arm (23) is fixedly connected to the sixth hinge seat (210) at one end close to the second main arm body (22), the sixth hinge seat (210) is rotatably connected to the end of the third hydraulic push rod (215), the output end of the third hydraulic push rod (215) is fixedly connected to the first rotating sleeve (216), and the first rotating sleeve (216) is rotatably sleeved on the middle part of the third column (214).

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