Excavation equipment for construction

Abstract

The present invention relates to the technical field of excavation, and specifically discloses an excavation device for construction, comprising: a bottom plate, a bottom opening is opened at the bottom of the bottom shell, a horizontal plate slidably connected to the inner wall of the bottom shell, and a supporting column fixed between the bottom plate and the horizontal plate; the excavation device for construction of the present invention, when the bottom plate is driven to slide horizontally by the horizontal plate, the excavation teeth can slide horizontally inside the soil, so that the excavation teeth have a shear force on the soil, increase the cutting effect of the excavation teeth on the soil, make it easier for the hole digger to penetrate hard strata, reduce the resistance encountered by the hole digger, and at the same time, the position of the excavation teeth can be changed to prevent the bottom end of the excavation teeth from continuously moving downward against hard objects, and through the cooperation of the top block, the inner column, the linkage rack and the linkage teeth, the excavation teeth can be driven to rotate, and blockages can be prevented from being left between adjacent excavation teeth, thereby reducing the resistance encountered by the hole digger during excavation.

Description

Technical Field

[0001] The invention relates to the technical field of excavation, and in particular to excavation equipment used in building construction. Background Art

[0002] Building construction refers to production activities during the implementation phase of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction, roofing engineering construction, and decoration engineering construction. During the construction process, excavation operations are usually indispensable. Excavation, that is, earth excavation, refers to the excavation of soil, rocks, etc. by manual or mechanical means to form pits or holes of the shape and size required by the design. For example, the equipment used for excavation includes a street lamp foundation hole opener. The core function of the street lamp foundation hole opener is to dig holes below the ground that meet the street lamp foundation installation requirements. This function directly corresponds to the main purpose of the excavation project, which is to excavate soil or rocks to form pits or holes.

[0003] A Chinese patent application with application number CN114320167A discloses a street lamp foundation hole opener, which includes a vibration box body, a square hole box body fixedly connected to the bottom of the vibration box body, a rotating shaft connected to the vibration box body through a power mechanism, and a drilling assembly connected to the bottom of the rotating shaft; an installation cylinder is fixedly sleeved on the outer side wall of the rotating shaft and is penetrated from top to bottom, and a spiral slider is fixedly connected to the top of the square hole box body.

[0004] The bottom of the hole opener similar to the above-mentioned technology has excavation teeth to help the hole opener cut and advance in the soil. When the hole opener is pressed vertically downward, the excavation teeth first contact the soil. As the pressure increases, the excavation teeth gradually cut into the soil to achieve preliminary crushing and cutting of the soil, thereby opening a square hole. However, during the use of the above-mentioned device, since the hole opener digs vertically downward, and the soil contains a large number of stones and other hard substances, these stones and hard objects are easily stuck between two adjacent excavation teeth. As the hole opener moves vertically downward, the excavation teeth will move downward against the stones or hard objects, which will increase the resistance of the hole opener to digging holes vertically, thereby easily reducing the efficiency of the hole opener in vertical digging, and will also cause the basic hole opener to tilt. Summary of the invention

[0005] The present invention provides an excavation device for construction, aiming to solve the problem in the related art that the excavation teeth will move downward against stones or hard objects, which will increase the resistance of the hole opener to move vertically downward to dig holes, thereby easily reducing the efficiency of the vertical hole opener for digging holes on the foundation of a street lamp.

[0006] The excavation equipment for construction of the present invention comprises a mobile body and a hole digger, wherein the hole digger is mounted on the movable arm of the mobile body, the hole digger comprises a top shell and a bottom shell, four connecting arms arranged at equal distances are fixed between the bottom of the top shell and the top of the bottom shell, and a digging tooth is installed at the bottom of the bottom shell; a lateral adjustment component is provided inside the bottom shell, and the lateral adjustment component comprises four bottom plates slidably connected to the bottom surface of the bottom shell, the digging tooth is installed at the bottom of the bottom plate, and four bottom openings corresponding to the bottom plates are opened at the bottom of the bottom shell, and four cross plates are slidably connected to the inner wall of the bottom shell, and a support column is fixed between the top of the bottom plate and the bottom of the cross plate, and the cross plate drives the digging tooth to slide laterally through the support column and the bottom plate to cross-cut the soil; an upward moving component and a rotating component are provided inside the bottom shell, which are used to throw away the blockage between two adjacent digging teeth when the digging tooth rotates.

[0007] Preferably, four first slide grooves are provided on the top of the bottom shell, each of the first slide grooves corresponds to a connecting arm, and the first slide groove is located below the corresponding connecting arm, the four first slide grooves are slidably connected with vertical plates inside, a horizontal plate is arranged between every two of the vertical plates, the side walls of each of the vertical plates are provided with an inclined hole, the inside of each of the inclined holes is slidably connected with a first cylinder, first side plates are fixed at both ends of each of the first cylinders, the vertical plate is located between two adjacent first side plates, and one side of the two first side plates is fixed to the side wall of the horizontal plate corresponding to it.

[0008] Preferably, a support plate is fixed to one side of the four vertical plates, two second side plates are fixed to the bottom of the four support plates, a rotating shaft is rotatably connected between the two second side plates, and a receiving groove is opened on the top of the four horizontal plates away from the first side plate, the inner bottom wall of the receiving groove has a slope, and the initial position of the rotating shaft is located at the top of the slope.

[0009] Preferably, a motor box is installed on the top of the top shell, a driving source is installed inside the motor box, a drilling part is provided on the lower side of the top shell, a driving shaft is installed on the top of the drilling part, and the top of the driving shaft passes through the bottom of the top shell and is installed on the output end of the driving source.

[0010] Preferably, a driving assembly is provided inside the hole digger, and the driving assembly includes a circular ring fixed on the outer wall of the driving shaft, four first linkage blocks arranged at equal distances are fixed on the outer ring surface of the circular ring, and the inner wall of the top shell is slidably connected to a limiting plate, and four second linkage blocks arranged at equal distances are fixed on the top of the limiting plate.

[0011] Preferably, a second slide groove is provided in each of the four connecting arms, and four third slide grooves are opened at the bottom of the top shell, each of the third slide grooves corresponds to a second slide groove, and the third slide groove is connected with the first slide groove through the second slide groove, and the interiors of the four second slide grooves are slidably connected with a lifting block, and the top of the lifting block extends to the interior of the top shell and is fixed to the bottom of the limit plate, and the bottom of the lifting block extends to the interior of the bottom shell and is fixed to the top of the vertical plate.

[0012] Preferably, the upward moving assembly includes a top block fixed on the top of a plurality of excavation teeth, and the top of the excavation teeth is fitted with the bottom of the top block, the bottom of the bottom plate is provided with a plurality of equidistantly arranged receiving openings and a first limiting hole, and the first limiting hole is communicated with the corresponding receiving opening, and the number of the receiving openings and the first limiting holes is the same as the number of the top block, and the side wall of the top block is slidably connected to the inner wall of the corresponding receiving opening, and the first limiting hole is communicated with the receiving opening, the interior of the first limiting hole is movably connected with an outer cylinder, a second limiting hole is provided in the middle of the top block, and the outer wall of the outer cylinder is fixed to the inner wall of the second limiting hole, and the inner wall of the bottom shell is fixed with a plurality of equidistantly arranged end plates, and the end plates are located below the cross plate.

[0013] Preferably, there is an end plate between every two of the outer cylinders, and the end plate is fixed on the inner wall of the bottom shell, a slide rail is fixed on one side of each of the end plates, and the slide rail at the tail end of the cross plate is fixed on the inner wall of the bottom shell, a limiting column is fixed on the outer wall of the outer cylinder, and the limiting column is slidably connected to the inside of the slide rail.

[0014] Preferably, the rotating assembly includes an inner column rotatably connected to the inner wall of the outer cylinder, and the bottom of the inner column passes through the outer cylinder and is fixed to the top of the excavation tooth, a connecting plate is fixed on one side of each of the multiple end plates, a linkage rack is fixed on the side of the connecting plate facing the inner column, and linkage teeth are fixed on the outer surface of the inner column, and the linkage teeth are meshingly connected with the linkage rack.

[0015] Preferably, the bottom of the first linkage block has a first arc-shaped surface, and the top of the second linkage block has a second arc-shaped surface.

[0016] The beneficial effects of the present invention are:

[0017] 1. When the bottom plate is driven to slide laterally by the transverse plate, the excavation teeth can slide laterally inside the soil, so that the excavation teeth have a shear force on the soil, increase the cutting effect of the excavation teeth on the soil, make it easier for the hole digger to penetrate the hard stratum, reduce the resistance of the hole digger, and at the same time, change the position of the excavation teeth to prevent the bottom end of the excavation teeth from continuously moving downward against the hard objects.

[0018] 2. The present invention can drive the excavation teeth to rotate through the cooperation of the top block, the inner column, the linkage rack and the linkage teeth, and can crush the soil in the area around the excavation teeth. At the same time, it can also prevent blockages from being left between adjacent excavation teeth, thereby reducing the resistance encountered by the hole digger when digging.

[0019] 3. The present invention can increase the height of the excavation teeth when the excavation teeth rotate through the cooperation of the outer cylinder, the end plate, the slide rail and the limit column, thereby preventing the excavation teeth from rotating against hard objects, reducing the wear of the excavation teeth, and exerting downward pressure on the soil when driving the excavation teeth to move downward, thereby improving the excavation efficiency of the excavation teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the hole digger of the present invention.

[0022] Figure 3 It is a structural schematic diagram of a first three-dimensional cross section of the hole digger of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the top shell of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the first three-dimensional cross-section of the bottom shell of the present invention.

[0026] Figure 7 The present invention Figure 6 Schematic diagram of the structure enlarged at point A in the middle.

[0027] Figure 8 It is a structural schematic diagram of the second three-dimensional cross-section of the bottom shell of the present invention.

[0028] Fig. 9 The present invention Figure 8 Schematic diagram of the enlarged structure at point B.

[0029] Fig.10 It is a structural schematic diagram of the upward moving component of the present invention.

[0030] Fig.11 It is a schematic structural diagram of the rotating assembly of the present invention.

[0031] Fig.12 It is a structural schematic diagram of the first three-dimensional cross-section of the top block of the present invention.

[0032] Reference numerals:

[0033] 10. Mobile body; 11. Hole digger; 110. Top shell; 111. Bottom shell; 112. Connecting arm; 113. Digging teeth; 114. Driving shaft; 115. Drilling member; 116. Motor box;

[0034] 20. Lateral adjustment assembly;

[0035] 21. bottom plate; 22. bottom opening; 23. horizontal plate; 24. support column; 25. first slide groove; 26. vertical plate; 27. inclined hole; 28. first cylinder; 29. ​​first side plate; 210. support plate; 211. second side plate; 212. rotation axis; 213. receiving groove;

[0036] 30. Drive components;

[0037] 31. Ring; 32. First linkage block; 33. Limiting plate; 34. Second linkage block; 35. Return spring; 36. Second slide slot; 37. Third slide slot; 38. Lifting block;

[0038] 40. Move up the assembly;

[0039] 41. top block; 42. receiving opening; 43. outer cylinder; 44. first limiting hole; 45. end plate; 46. slide rail; 47. limiting column; 48. second limiting hole;

[0040] 50. Rotating assembly;

[0041] 51. Inner column; 53. Connecting plate; 54. Linking rack; 55. Linking teeth. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0043] Embodiment 1

[0044] Since the excavation method of the street lamp foundation hole opener is to move vertically downward to cut the soil for excavation, and the soil contains a large number of stones and other hard objects, when the street lamp foundation hole opener moves vertically downward to excavate, the digging teeth 113 at the bottom of the street lamp foundation hole opener will contact the surface of the stone or hard object, and the stone or hard object will produce resistance to the digging teeth 113. As the street lamp foundation hole opener moves vertically downward, the digging teeth 113 will move downward against the stone or hard object. At this time, the resistance encountered by the digging teeth 113 increases, which will reduce the efficiency of the street lamp foundation hole opener in vertical digging and accelerate the wear of the digging teeth 113.

[0045] like Figures 1 to 9As shown, the excavation equipment for construction of the present invention comprises: a mobile body 10 and a hole digger 11, the hole digger 11 is installed on the movable arm of the mobile body 10 by bolts and nuts, the hole digger 11 comprises a top shell 110 and a bottom shell 111, four connecting arms 112 are fixed to the bottom of the top shell 110 and the top of the bottom shell 111, and the four connecting arms 112 are arranged circumferentially at the bottom of the top shell 110, and a plurality of equally spaced excavation teeth 113 are installed on the four bottom surfaces of the bottom shell 111, a motor box 116 is installed on the top of the top shell 110, a driving source is installed inside the motor box 116, a drilling member 115 is arranged on the lower side of the top shell 110, a driving shaft 114 is installed on the top of the drilling member 115, and the top of the driving shaft 114 passes through the bottom of the top shell 110 and is installed on the output end of the driving source.

[0046] refer to Figure 3 , Figure 7 , Figure 8 and Fig. 9 As shown, a lateral adjustment component 20 is provided inside the bottom shell 111, and the lateral adjustment component 20 is used to drive the excavation teeth 113 to slide laterally along the extension direction of the corresponding bottom surface of the bottom shell 111, so that the excavation teeth 113 have a shear force on the soil. The shear force helps to increase the cutting effect of the excavation teeth 113 on the soil, making it easier for the hole digger 11 to penetrate hard strata. At the same time, the lateral sliding can also prevent the excavation teeth 113 from pressing against hard objects and continuing to move downward during the downward movement.

[0047] The lateral adjustment assembly 20 includes four bottom plates 21 slidably connected to the bottom surface of the bottom shell 111, and the excavation teeth 113 are installed at the bottom of the bottom plates 21, and the four bottom plates 21 are arranged circumferentially at the bottom of the bottom shell 111, and the bottom of the bottom shell 111 is provided with four bottom openings 22 corresponding to the bottom plates 21 one by one, the length of the bottom plate 21 is greater than the length of the bottom opening 22, and the width of the bottom plate 21 is greater than the width of the bottom opening 22, and the inner wall of the bottom shell 111 is slidably connected with four horizontal plates 23, and the four horizontal plates 23 corresponds one by one above each bottom opening 22, and there is a gap between the inner walls corresponding to the bottom shell 111 on both sides of the cross plate 23, and the gap is used for the margin when the cross plate 23 slides horizontally. A support column 24 is fixed between the top of the bottom plate 21 and the bottom of the cross plate 23, which is used to support the bottom plate 21, so as to maintain the stability of the bottom plate 21 when sliding. When the cross plate 23 drives the bottom plate 21 to slide along the extension direction of the corresponding bottom opening 22 through the support column 24, the excavation tooth 113 can slide laterally.

[0048] Four first slide grooves 25 are provided on the top of the bottom shell 111, each first slide groove 25 corresponds to a connecting arm 112, and the first slide groove 25 is located below the connecting arm 112. Vertical plates 26 are slidably connected inside the four first slide grooves 25, and a horizontal plate 23 is arranged between every two vertical plates 26. An inclined hole 27 is provided on the side wall of each vertical plate 26, and a first cylinder 28 is slidably connected inside each inclined hole 27. First side plates 29 are fixed at both ends of each first cylinder 28. The vertical plate 26 is located between two adjacent first side plates 29, and one side of the two first side plates 29 is fixed on the side wall of the horizontal plate 23 corresponding thereto. One side of the horizontal plate 23 having the first side plate 29 is the head end, and the other side is the tail end. When the vertical plate 26 moves downward, the first cylinder 28 slides from the bottom end of the inclined hole 27 to the top thereof, thereby driving the excavation tooth 113 to slide laterally along the extension direction of the bottom opening 22 through the horizontal plate 23.

[0049] A support plate 210 is fixed to one side wall of the four vertical plates 26, and two second side plates 211 are fixed to the bottom of each support plate 210. A rotating shaft 212 is rotatably connected between the two second side plates 211. A receiving groove 213 is provided on the top of the side of the horizontal plate 23 away from the first side plate 29. The inner bottom wall of the receiving groove 213 has a slope, and the initial position of the rotating shaft 212 is located at the top of the slope, and the length of the slope is the same as the length of the inclined hole 27.

[0050] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a driving assembly 30 is disposed inside the hole digger 11, which can drive the transverse plate 23 to slide laterally along the extension direction of the bottom opening 22, so that the excavation teeth 113 have a shear force on the soil.

[0051] The driving assembly 30 includes a circular ring 31 fixed on the outer wall of the driving shaft 114, and four first linkage blocks 32 arranged at equal distances are fixed on the outer ring surface of the circular ring 31, and the bottom of the first linkage block 32 has a first arc-shaped surface, and the inner wall of the top shell 110 is slidably connected to a limiting plate 33, and four second linkage blocks 34 arranged at equal distances are fixed on the top of the limiting plate 33, and the top of the second linkage block 34 has a second arc-shaped surface, and a reset spring 35 is fixed between the top of the limiting plate 33 and the inner top wall of the top shell 110, which is used to support the limiting plate 33, so as to facilitate the reset of the limiting plate 33.

[0052] A second slide groove 36 is provided in each of the four connecting arms 112, and four third slide grooves 37 are opened at the bottom of the top shell 110, and the four third slide grooves 37 correspond to one second slide groove 36 respectively, and the third slide groove 37 is connected with the first slide groove 25 through the second slide groove 36. The interiors of the four second slide grooves 36 are all slidably connected with a lifting block 38, and the top of the lifting block 38 extends to the interior of the top shell 110 and is fixed to the bottom of the limit plate 33, and the bottom of the lifting block 38 extends to the interior of the bottom shell 111 and is fixed to the top of the vertical plate 26.

[0053] When digging the soil, the mobile body 10 drives the hole digger 11 to move to the digging location, and then turns on the driving source. The driving source drives the drilling member 115 to rotate through the driving shaft 114, and the mobile body 10 drives the hole digger 11 to move down into the soil, and the drilling member 115 digs the soil. As the driving shaft 114 rotates, when the first linkage block 32 on the ring 31 contacts the second linkage block 34, the first linkage block 32 drives the limit plate 33 to move downward through the second linkage block 34, and the limit plate 33 drives the vertical plate 26 to move downward through the lifting block 38. At this time, the first cylinder 28 slides from the bottom end of the inclined hole 27 to the top thereof, and the first cylinder 28 pushes the connected horizontal plate 23 to slide horizontally along the extension direction of the bottom opening 22 through the first side plate 29.

[0054] When the vertical plate 26 moves downward, the rotating shaft 212 slides from the top of the slope of the bottom wall of the accommodating groove 213 to its bottom end, thereby generating a pulling force on the horizontal plate 23. At this time, the horizontal plate 23 drives the bottom plate 21 to slide horizontally through the support column 24, so that the excavation teeth 113 cut the soil horizontally. When the driving shaft 114 continues to rotate and the second linkage block 34 is separated from the downward pressure of the first linkage block 32, the return spring 35 can drive the limit plate 33 to move up and reset, and the limit plate 33 drives the vertical plate 26 to move up and reset through the lifting block 38. The first cylinder 28 slides from the top of the inclined hole 27 to its bottom end, and the rotating shaft 212 slides from the bottom end of the slope to its top. At this time, the bottom plate 21 drives the excavation teeth 113 to reset, and the excavation teeth 113 cut the soil horizontally again. As the bottom plate 21 repeatedly slides horizontally, the excavation teeth 113 can have a cutting force on the soil, thereby reducing the resistance of the hole digger 11.

[0055] When the bottom plate 21 is driven to slide laterally by the cross plate 23, the digging teeth 113 can slide laterally inside the soil, so that the digging teeth 113 have a shear force on the soil, increasing the cutting effect of the digging teeth 113 on the soil, making it easier for the hole digger 11 to penetrate hard strata, reducing the resistance encountered by the hole digger 11, and at the same time, the position of the digging teeth 113 can be changed to prevent the bottom end of the digging teeth 113 from continuously moving downward against hard objects.

[0056] Embodiment 2

[0057] Since the hole digger 11 digs vertically and the soil contains stones and hard objects, when the hole digger 11 moves downward, two adjacent excavation teeth 113 are easily blocked by stones and hard objects. When the hole digger 11 moves downward, the blockage between the two excavation teeth 113 also moves vertically downward, and the resistance generated by the downward movement of the blockage will be transmitted to the hole digger 11, which will increase the resistance encountered by the hole digger 11. In view of this, improvements are made on the basis of Example 1.

[0058] refer to Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, an upward moving component 40 and a rotating component 50 are provided inside the bottom shell 111. The rotating component 50 is used to drive two adjacent excavation teeth 113 to rotate in the opposite direction, so as to throw away the blockage and break up the soil, thereby reducing the resistance of the excavation teeth 113. The upward moving component 40 is used to drive the excavation teeth 113 to move upward, which can prevent the excavation teeth 113 from rotating against stones or hard objects, thereby reducing the wear of the excavation teeth 113.

[0059] The upward moving assembly 40 includes a top block 41 fixed on the top of a plurality of excavation teeth 113, and the top of the excavation teeth 113 fits with the bottom of the top block 41, and the bottom of the bottom plate 21 is provided with a plurality of equidistantly arranged receiving ports 42 and a first limiting hole 44, the first limiting hole 44 is connected to the corresponding receiving ports 42, and the number of the receiving ports 42 and the first limiting hole 44 is the same as the number of the top block 41, and the side wall of the top block 41 is slidably connected to the inner wall of the corresponding receiving port 42, and the first limiting hole 44 is connected to the receiving port 42, the inner wall of the first limiting hole 44 is movably connected with an outer cylinder 43, and the outer The outer wall of the cylinder 43 fits the inner wall of the first limiting hole 44, a second limiting hole 48 is opened in the middle of the top block 41, and the outer wall of the outer cylinder 43 is fixed on the inner wall of the second limiting hole 48, and the inner wall of the bottom shell 111 is fixed with multiple end plates 45 arranged at equal distances, and the end plates 45 are located below the cross plate 23, and there is an end plate 45 between every two outer cylinders 43, and a slide rail 46 is fixed on one side of each end plate 45, and the side wall of the slide rail 46 located at the rear end of the cross plate 23 is fixed on the inner wall of the bottom shell 111, and the outer wall of the outer cylinder 43 is fixed with a limiting column 47, and the limiting column 47 is slidably connected to the inside of the slide rail 46.

[0060] The rotating assembly 50 includes an inner column 51 rotatably connected to the inner wall of the outer cylinder 43, and the bottom of the inner column 51 passes through the outer cylinder 43 and is fixed to the top of the excavation tooth 113, a connecting plate 53 is fixed on one side of multiple end plates 45, and there is an end plate 45 between every two connecting plates 53, a linkage rack 54 is fixed on the side of the connecting plate 53 facing the inner column 51, and a linkage tooth 55 is fixed on the outer surface of the inner column 51, and the linkage tooth 55 is meshed and connected with the linkage rack 54.

[0061] When the vertical plate 26 moves downward and drives the horizontal plate 23 to slide toward its tail end, the linkage teeth 55 of the inner column 51 are meshed and connected with the linkage rack 54, and the inner column 51 drives the connected excavation teeth 113 to rotate. At this time, the excavation teeth 113 at the bottom of the bottom plate 21 rotate synchronously, and the adjacent excavation teeth 113 rotate in the opposite direction, so that the blockage between the two adjacent excavation teeth 113 can be thrown away to the inside or outside of the hole digger 11. At the same time, the limit column 47 slides from the bottom end of the slide rail 46 to the top end thereof, and the outer cylinder 43 drives the top block 41 It moves upward inside the accommodating opening 42, and the top block 41 drives the connected excavation tooth 113 to move upward, which can prevent the bottom end of the excavation tooth 113 from contacting hard objects and rotating. When the cross plate 23 is reset, the linkage rack 54 cooperates with the linkage tooth 55 to drive the excavation tooth 113 on the top block 41 to rotate again through the inner column 51, thereby reducing the blockage between the two adjacent excavation teeth 113, and the limiting column 47 slides from the top end of the slide rail 46 to its bottom end, which can exert downward pressure on the soil, thereby accelerating the digging efficiency of the hole digger 11.

[0062] Through the cooperation of the top block 41, the inner column 51, the linkage rack 54 and the linkage teeth 55, the excavation teeth 113 can be driven to rotate, and the soil around the excavation teeth 113 can be ground. At the same time, blockages can be prevented between adjacent excavation teeth 113, thereby reducing the resistance encountered by the hole digger 11 when digging.

[0063] Through the cooperation of the outer cylinder 43, the end plate 45, the slide rail 46 and the limit column 47, when the digging tooth 113 rotates, the height of the digging tooth 113 can be increased, the digging tooth 113 can be prevented from rotating against hard objects, the wear of the digging tooth 113 can be reduced, and when the digging tooth 113 is driven to move downward, downward pressure can be applied to the soil, thereby improving the excavation efficiency of the digging tooth 113.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An excavation equipment for construction, characterized in that: The invention comprises a mobile body (10) and a hole digger (11), wherein the hole digger (11) is mounted on a movable arm of the mobile body (10), and the hole digger (11) comprises a top shell (110) and a bottom shell (111), four connecting arms (112) arranged at equal distances are fixed between the bottom of the top shell (110) and the top of the bottom shell (111), and a digging tooth (113) is mounted on the bottom of the bottom shell (111); A lateral adjustment assembly (20) is provided inside the bottom shell (111), and the lateral adjustment assembly (20) comprises four bottom plates (21) slidably connected to the bottom surface of the bottom shell (111), the excavation teeth (113) are mounted on the bottom of the bottom plates (21), the bottom of the bottom shell (111) is provided with four bottom openings (22) corresponding to the bottom plates (21) one by one, the inner wall of the bottom shell (111) is slidably connected to four transverse plates (23), a support column (24) is fixed between the top of the bottom plate (21) and the bottom of the transverse plate (23), and the transverse plate (23) drives the excavation teeth (113) to slide laterally through the support column (24) and the bottom plate (21) to cross-cut the soil; The top of the bottom shell (111) is provided with four first slide grooves (25), each of which corresponds to a connecting arm (112), and the first slide groove (25) is located below the corresponding connecting arm (112), the interior of the four first slide grooves (25) is slidably connected with a vertical plate (26), a horizontal plate (23) is provided between every two of the vertical plates (26), the side wall of each vertical plate (26) is provided with an inclined hole (27), the interior of each inclined hole (27) is slidably connected with a first cylinder (28), and the two ends of each first cylinder (28) are fixed with a first side plate (29), the vertical plate (26) is located between two adjacent first side plates (29), and one side of the two first side plates (29) is fixed to the side wall of the corresponding horizontal plate (23); An upward moving assembly (40) and a rotating assembly (50) are provided inside the bottom shell (111) and are used to throw away a blockage between two adjacent digging teeth (113) when the digging teeth (113) rotate.

2. The excavation equipment for construction according to claim 1, characterized in that: A support plate (210) is fixed to one side of each of the four vertical plates (26); two second side plates (211) are fixed to the bottom of each of the four support plates (210); a rotation shaft (212) is rotatably connected between the two second side plates (211); and a receiving groove (213) is provided at the top of each of the four horizontal plates (23) on a side away from the first side plate (29); the inner bottom wall of the receiving groove (213) has a slope, and the initial position of the rotation shaft (212) is located at the top of the slope.

3. The excavation equipment for construction according to claim 2, characterized in that: A motor box (116) is installed on the top of the top shell (110), a driving source is installed inside the motor box (116), a drilling member (115) is provided on the lower side of the top shell (110), a driving shaft (114) is installed on the top of the drilling member (115), and the top of the driving shaft (114) passes through the bottom of the top shell (110) and is installed on the output end of the driving source.

4. The excavation equipment for construction according to claim 3, characterized in that: A driving assembly (30) is arranged inside the hole digger (11), and the driving assembly (30) comprises a circular ring (31) fixed on the outer wall of the driving shaft (114), and four first linkage blocks (32) arranged at equal distances are fixed to the outer ring surface of the circular ring (31), and the inner wall of the top shell (110) is slidably connected to a limiting plate (33), and four second linkage blocks (34) arranged at equal distances are fixed on the top of the limiting plate (33).

5. The excavation equipment for construction according to claim 4, characterized in that: The four connecting arms (112) are each provided with a second slide groove (36), and the bottom of the top shell (110) is provided with four third slide grooves (37), each of the third slide grooves (37) corresponds to a second slide groove (36), and the third slide groove (37) is connected to the first slide groove (25) through the second slide groove (36), and the inside of the four second slide grooves (36) is slidably connected with a lifting block (38), and the top of the lifting block (38) extends to the inside of the top shell (110) and is fixed to the bottom of the limit plate (33), and the bottom of the lifting block (38) extends to the inside of the bottom shell (111) and is fixed to the top of the vertical plate (26).

6. The excavation equipment for construction according to claim 5, characterized in that: The upward moving assembly (40) comprises a top block (41) fixed on the top of a plurality of excavation teeth (113), and the top of the excavation teeth (113) is in contact with the bottom of the top block (41), and the bottom of the bottom plate (21) is provided with a plurality of equidistantly arranged receiving openings (42) and first limiting holes (44), and the first limiting holes (44) are connected to the corresponding receiving openings (42), and the number of the receiving openings (42) and the first limiting holes (44) is the same as the number of the top block (41), and the top block (41) The side wall is slidably connected to the inner wall of the corresponding accommodating opening (42), and the first limiting hole (44) is connected to the accommodating opening (42). The inner part of the first limiting hole (44) is movably connected to the outer cylinder (43). A second limiting hole (48) is opened in the middle of the top block (41), and the outer wall of the outer cylinder (43) is fixed to the inner wall of the second limiting hole (48). A plurality of end plates (45) arranged at equal distances are fixed to the inner wall of the bottom shell (111), and the end plates (45) are located below the transverse plate (23).

7. The excavation equipment for construction according to claim 6, characterized in that: An end plate (45) is provided between every two of the outer cylinders (43), and the end plate (45) is fixed to the inner wall of the bottom shell (111). A slide rail (46) is fixed to one side of each of the end plates (45), and the slide rail (46) located at the rear end of the transverse plate (23) is fixed to the inner wall of the bottom shell (111). A limiting column (47) is fixed to the outer wall of the outer cylinder (43), and the limiting column (47) is slidably connected to the inside of the slide rail (46).

8. The excavation equipment for construction according to claim 7, characterized in that: The rotating assembly (50) comprises an inner column (51) rotatably connected to the inner wall of the outer cylinder (43), and the bottom of the inner column (51) passes through the outer cylinder (43) and is fixed to the top of the excavation tooth (113), a connecting plate (53) is fixed on one side of each of the plurality of end plates (45), a linkage rack (54) is fixed on the side of the connecting plate (53) facing the inner column (51), and linkage teeth (55) are fixed on the outer surface of the inner column (51), and the linkage teeth (55) are meshingly connected with the linkage rack (54).

9. The excavation equipment for construction according to claim 4, characterized in that: The bottom of the first linkage block (32) has a first arc-shaped surface, and the top of the second linkage block (34) has a second arc-shaped surface.

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