CN215979225U - Drilling device for rock and soil exploration in building foundation construction - Google Patents

Abstract

The utility model provides a drilling device for rock and soil exploration in building foundation construction, which comprises a support frame, a sliding chute, a level bar, a drilling motor, a drilling mechanism, an adsorbable support fixed seat structure, a slidable buffer drilling frame structure, an adjustable vertical detection moving seat structure, a push rod, a protection frame, a protection pad, a weight box, a box cover and an arc-shaped clamping plate. The connecting seat, the fixing tube, the adsorption seat, the support frame and the sliding chute are matched with each other, so that the adsorption seat is favorable for contacting a fixed position in the using process, and equipment is conveniently fixed in the using process; the sliding plate, the sliding block, buffer spring, the support frame, the spout, the setting of probing motor and probing mechanism is favorable to promoting sliding block and sliding plate through buffer spring at the in-process that uses, conveniently carries out buffering work at the in-process of probing, prevents that the too fast probing motor of progress from generating heat and influencing work.

Description

Drilling device for rock and soil exploration in building foundation construction

Technical Field

The utility model belongs to the technical field of building exploration equipment, and particularly relates to a drilling device for rock and soil exploration in building foundation construction.

Background

In the construction of building foundation, drilling is needed to carry out drilling on rock soil. Geotechnical engineering investigation is the activity of finding out, analyzing and evaluating geology and environmental characteristics of a construction site and geotechnical engineering condition compiling investigation files, is of great importance to building construction engineering, along with economic development, the urban construction speed is accelerated, building construction is more and more, the geotechnical engineering investigation demand is gradually increased, and equipment of the geotechnical engineering investigation is continuously updated and perfected.

However, the existing drilling device also has the problems that the fixing work is inconvenient to carry out in the using process, the drilling buffering work is inconvenient to carry out in the working process, and the vertical detection is inconvenient to carry out in the using process.

Therefore, it is necessary to invent a drilling device for geotechnical investigation in building foundation construction.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a drilling device for geotechnical investigation in building foundation construction, which aims to solve the problems that the conventional drilling device is inconvenient to perform fixing work, drilling buffering work and vertical detection in the using process. A drilling device for rock and soil exploration in building foundation construction comprises a support frame, sliding chutes, a level bar, a drilling motor, a drilling mechanism, an adsorbable support fixed seat structure, a slidable buffer drilling frame structure, an adjustable vertical detection moving seat structure, a push rod, a protection frame, a protection pad, a weight box, a box cover and an arc-shaped clamping plate, wherein the sliding chutes are respectively arranged in the middle positions of the inner walls of the left side and the right side of the support frame; the leveling rulers are respectively embedded at the left side and the right side of the upper part of the front surface of the support frame; the upper end key of the drilling mechanism is connected with the outer wall of the output shaft of the drilling motor; the adsorbable support fixing seat structures are respectively arranged at the lower parts of the left side and the right side of the support frame and are respectively arranged at the four corners of the lower end of the support frame; the slidable buffer drilling frame structure is arranged in the sliding groove; the adjustable vertical detection moving seat structure is arranged at the lower part of the outer wall of the support frame; the pushing rods are respectively bolted at the middle positions of the upper parts of the left side and the right side of the supporting frame; the protective frame is connected to the middle position of the top end in the supporting frame through a bolt; the protective pad is glued at the middle position of the top end in the protective frame; the weight box is connected to the middle position of the upper end of the support frame through a bolt; the box cover is inserted in the middle of the upper inner part of the weight box; the arc clamping and connecting plates are respectively bolted at the middle positions of the left side and the right side of the upper end of the support frame; the structure of the adsorbable support fixed seat comprises a connecting seat, threaded holes, a T-shaped adjusting rod, a fixing tube, an adsorption seat, a negative pressure rod and an adjusting nut, wherein the threaded holes are respectively formed in the left side and the right side of the inside of the connecting seat; the T-shaped adjusting rod penetrates through the threaded hole and is arranged in the middle position of the left side inside the connecting seat; the fixing pipe penetrates through the threaded hole and is arranged in the middle of the inner part of the right side of the connecting seat; the upper end of the adsorption seat is glued and connected to the lower end of the fixed pipe and is communicated with the fixed pipe; the negative pressure rod is inserted in the middle of the upper inner part of the fixed pipe in a sliding and seamless manner; the adjusting nut is in threaded connection with the upper part of the outer wall of the negative pressure rod.

Preferably, the slidable buffer drilling frame structure comprises a sliding plate, a sliding block, a pressing pipe, an insertion rod and a buffer spring, wherein two ends of the sliding plate are respectively bolted at the middle positions of the left side and the right side of the sliding block; the pressing pipes are respectively bolted at the middle positions of the left side and the right side of the upper end of the sliding plate; the insertion rods are respectively in threaded connection with the middle position inside the lower side of the sliding block; the upper ends of the buffer springs are respectively sleeved on the outer walls of the lower ends of the insertion rods.

Preferably, the adjustable vertical detection moving seat structure comprises a sleeve pipe, a fixed plate, a puller bolt, a lifting seat, a moving wheel and a vertical detection ruler, wherein the fixed plate is connected to the middle position of the left side of the sleeve pipe through a bolt; the jacking bolt is in threaded connection with the middle position of the front surface of the fixing plate; the lifting seat penetrates through the middle position inside the fixing plate; the movable wheel is connected to the lower end of the lifting seat through a bolt; the vertical detection ruler is embedded in the middle of the upper end of the lifting seat.

Preferably, the drilling motor is arranged in the middle of the inner bottom end of the protective frame; the protective frame adopts an inverted U-shaped stainless steel frame; the protective pad adopts a silica gel pad.

Preferably, the lower end of the negative pressure rod is glued with a silica gel pad; the adjusting nut is arranged at the upper end of the fixed pipe; the T-shaped adjusting rod is arranged on the left side of the fixed pipe.

Preferably, the connecting seats are respectively bolted on the lower parts of the left side and the right side of the supporting frame and are arranged at the four corners of the lower end of the supporting frame; the T-shaped adjusting rods are respectively arranged between the fixed pipe and the supporting frame.

Preferably, the sliding plate is a rectangular stainless steel plate with a through hole in the middle; the pressing pipe adopts a stainless steel pipe and is arranged at the upper part between the sliding blocks.

Preferably, the sliding blocks are respectively inserted in the sliding grooves in a sliding manner; the lower ends of the buffer springs are respectively bolted at the middle position of the bottom end in the sliding chute; the lower end of the drilling motor is connected to the middle position of the upper end of the sliding plate through a bolt, and the output shaft penetrates through the middle position of the inside of the sliding plate; the drilling mechanism is arranged in the middle of the lower end of the sliding plate.

Preferably, the jacking bolt is in contact with the lifting seat; the lifting seat is arranged on the left side of the sleeve pipe.

Preferably, the sleeve pipes are respectively sleeved at the lower part of the outer wall of the support frame and are arranged in a bolt connection mode; the lifting seats are respectively arranged on the lower parts of the inner walls of the left side and the right side of the supporting frame.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the utility model, the connecting seat, the fixing tube, the adsorption seat, the support frame and the chute are matched with each other, so that the adsorption seat is in contact with a fixed position in the use process, and the equipment is conveniently fixed in the use process.

2. According to the drilling machine, the sliding plate, the sliding block, the buffer spring, the supporting frame, the sliding groove, the drilling motor and the drilling mechanism are arranged, so that the sliding block and the sliding plate are pushed by the buffer spring in the using process, the buffer work is convenient in the drilling process, and the phenomenon that the drilling motor generates heat to influence the work when the progress is too fast is avoided.

3. In the utility model, the arrangement of the sleeve pipe, the fixing plate, the lifting seat, the vertical detection ruler, the support frame and the sliding groove is beneficial to vertical and parallel design of the vertical detection ruler and the support frame in the use process, and the vertical detection work of the drilling mechanism is convenient to carry out in the use process.

4. According to the utility model, the arrangement of the connecting seat, the threaded hole, the T-shaped adjusting rod, the fixing tube and the supporting frame is beneficial to the arrangement of the T-shaped adjusting rod and the connecting seat in a threaded connection manner in the use process, and then the lower end of the connecting seat is in contact with the fixed position, so that the levelness of the supporting frame can be conveniently adjusted in the use process.

5. According to the utility model, the arrangement of the connecting seat, the T-shaped adjusting rod, the fixing tube, the adsorption seat, the negative pressure rod and the adjusting nut is beneficial to rotating the adjusting nut in the use process and then connecting the adjusting nut and the negative pressure rod through threads, so that the gas in the adsorption seat is conveniently sucked away in the use process, and the equipment fixing work is facilitated.

6. According to the utility model, the arrangement of the sliding plate, the sliding block, the pressing pipe, the inserting rod, the buffer spring, the support frame and the sliding groove is beneficial to pressing the pressing pipe in the use process, the sliding plate is conveniently pushed to move in work, and the drilling work is facilitated.

7. According to the utility model, the sleeve pipe, the fixing plate, the puller bolt, the lifting seat, the movable wheel, the vertical detection ruler and the support frame are arranged, so that the puller bolt can be loosened in the use process, then the lower end of the movable wheel is arranged in a contact manner, and the movable function is conveniently added in the use process.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the adsorbable support mount structure of the present invention.

Fig. 3 is a schematic structural view of the slidable buffer drilling rig structure of the present invention.

FIG. 4 is a schematic structural view of an adjustable vertical inspection motion stage according to the present invention.

In the figure:

1. a support frame; 2. a chute; 3. a level bar; 4. a drilling motor; 5. a drilling mechanism; 6. the fixing seat structure can be adsorbed and supported; 61. a connecting seat; 62. a threaded hole; 63. a T-shaped adjusting rod; 64. a fixed tube; 65. an adsorption seat; 66. a negative pressure lever; 67. adjusting the nut; 7. a slidable buffer drilling rig structure; 71. a sliding plate; 72. a slider; 73. pressing a pipe; 74. a plug rod; 75. a buffer spring; 8. the structure of the vertical detection moving seat can be adjusted; 81. sleeving a pipe; 82. a fixing plate; 83. jacking the bolt; 84. a lifting seat; 85. a moving wheel; 86. a vertical detection ruler; 9. a push rod; 10. a protective frame; 11. a protective pad; 12. a weight box; 13. a box cover; 14. arc joint board.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a drilling device for geotechnical investigation in building foundation construction comprises a support frame 1, a sliding chute 2, a level bar 3, a drilling motor 4, a drilling mechanism 5, an adsorbable support fixed seat structure 6, a slidable buffer drilling seat structure 7, an adjustable vertical detection moving seat structure 8, a push rod 9, a protection frame 10, a protection pad 11, a weight box 12, a box cover 13 and an arc clamping plate 14, wherein the sliding chute 2 is respectively arranged at the middle position of the inner walls of the left side and the right side of the support frame 1; the horizontal rulers 3 are respectively embedded at the left side and the right side of the upper part of the front surface of the support frame 1; the upper end of the drilling mechanism 5 is connected with the outer wall of the output shaft of the drilling motor 4 in a key mode; the adsorbable support fixing seat structures 6 are respectively arranged at the lower parts of the left side and the right side of the support frame 1 and are respectively arranged at the four corners of the lower end of the support frame 1; the slidable buffer drilling frame structure 7 is arranged inside the sliding chute 2; the adjustable vertical detection moving seat structure 8 is arranged at the lower part of the outer wall of the support frame 1; the pushing rods 9 are respectively bolted at the middle positions of the upper parts of the left side and the right side of the support frame 1; the protective frame 10 is connected to the middle position of the top end in the support frame 1 through a bolt; the protective pad 11 is glued at the middle position of the top end inside the protective frame 10; the weight box 12 is connected to the middle position of the upper end of the support frame 1 through a bolt; the box cover 13 is inserted in the middle of the upper inner part of the weight box 12; the arc-shaped clamping plates 14 are respectively bolted at the middle positions of the left side and the right side of the upper end of the support frame 1; the adsorbable support fixing seat structure 6 comprises a connecting seat 61, a threaded hole 62, a T-shaped adjusting rod 63, a fixing tube 64, an adsorption seat 65, a negative pressure rod 66 and an adjusting nut 67, wherein the threaded hole 62 is respectively formed in the left side and the right side of the inside of the connecting seat 61; the T-shaped adjusting rod 63 penetrates through the threaded hole 62 and is arranged in the middle position of the left side inside the connecting seat 61; the fixing tube 64 penetrates through the threaded hole 62 and is arranged in the middle of the right inner part of the connecting seat 61; the upper end of the adsorption seat 65 is glued to the lower end of the fixed tube 64 and is communicated with the fixed tube; the negative pressure rod 66 is inserted in the middle of the upper inner part of the fixed tube 64 in a sliding and seamless way; the adjusting nut 67 is in threaded connection with the upper part of the outer wall of the negative pressure rod 66; move support frame 1 to suitable position during the use, move support frame 1 to behind suitable position, rotatory T type adjusts pole 63, make the lower extreme contact fixed position of T type regulation pole 63, the level of support frame 1 has been adjusted, then make the lower extreme of adsorbing the seat 65 adsorb fixed position, rotate adjusting nut 67, set up through adjusting nut 67 and 66 threaded connection of negative pressure pole, make negative pressure pole 66 upwards remove, then will adsorb the inside gas admission fixed tube 64's of seat 65 inside, the convenience is at the in-process of using and is carried out fixing work.

In this embodiment, referring to fig. 3, the slidable buffer drilling frame structure 7 includes a sliding plate 71, a sliding block 72, a pressing tube 73, an insertion rod 74 and a buffer spring 75, wherein two ends of the sliding plate 71 are respectively bolted to the middle positions of the left and right sides of the sliding block 72; the pressing pipes 73 are respectively bolted at the middle positions of the left side and the right side of the upper end of the sliding plate 71; the insertion rods 74 are respectively in threaded connection with the middle positions inside the lower sides of the sliding blocks 72; the upper ends of the buffer springs 75 are respectively sleeved on the outer wall of the lower end of the plug-in rod 74; then make the lower extreme of boring mechanism 5 correspond the drilling position, drive boring mechanism 5 through boring motor 4 and rotate, then carry out the drilling work, promote sliding block 72 and peg graft pole 74 through buffer spring 75 in the work, conveniently carry out the cushioning work at the in-process of boring, through, prevent that the drilling progress is too fast, cause the overheated work that influences of boring motor 4, accomplish the drilling work.

In this embodiment, referring to fig. 4, the adjustable vertical detection moving seat structure 8 includes a sleeve 81, a fixing plate 82, a tightening bolt 83, a lifting seat 84, a moving wheel 85 and a vertical detection ruler 86, wherein the fixing plate 82 is bolted to the middle position of the left side of the sleeve 81; the puller bolt 83 is in threaded connection with the middle position of the front surface of the fixing plate 82; the lifting seat 84 penetrates through the middle position inside the fixing plate 82; the moving wheel 85 is connected with the lower end of the lifting seat 84 through a bolt; the vertical detection ruler 86 is embedded in the middle of the upper end of the lifting seat 84; in the in-process of carrying out the drilling work, screw up puller bolt 83, through the cooperation of lift seat 84 and perpendicular detection chi 86, carry out the straightness detection work that hangs down to drilling mechanism 5, prevent to be in the in-process drilling mechanism 5 slope influence work of probing, after accomplishing the probing, loosen puller bolt 83, make and remove wheel 85 contact ground, the work is removed in-process convenient using, and then the completion work.

In this embodiment, specifically, the drilling motor 4 is disposed at the middle position of the bottom end inside the protection frame 10; the protective frame 10 is an inverted U-shaped stainless steel frame; the protective pad 11 is a silica gel pad.

In this embodiment, specifically, the lower end of the negative pressure rod 66 is glued with a silica gel pad; the adjusting nut 67 is arranged at the upper end of the fixed pipe 64; the T-shaped adjusting lever 63 is provided at the left side of the fixed pipe 64.

In this embodiment, specifically, the connecting seats 61 are respectively bolted to the lower parts of the left and right sides of the support frame 1 and are arranged at the four corners of the lower end of the support frame 1; the T-shaped adjusting rods 63 are respectively arranged between the fixed pipe 64 and the support frame 1.

In this embodiment, specifically, the sliding plate 71 is a rectangular stainless steel plate with a through hole at the middle position inside; the pressing pipe 73 is made of a stainless steel pipe and is disposed at an upper portion between the sliding blocks 72.

In this embodiment, specifically, the sliding blocks 72 are respectively inserted into the sliding grooves 2 in a sliding manner; the lower ends of the buffer springs 75 are respectively bolted at the middle position of the bottom end in the chute 2; the lower end of the drilling motor 4 is connected with the middle position of the upper end of the sliding plate 71 through a bolt, and the output shaft penetrates through the middle position inside the sliding plate 71; the drilling mechanism 5 is arranged in the middle of the lower end of the slide plate 71.

In this embodiment, specifically, the tightening bolt 83 is disposed in contact with the lifting seat 84; the lifting seat 84 is arranged on the left side of the sleeve 81.

In this embodiment, specifically, the sleeving pipes 81 are respectively sleeved at the lower part of the outer wall of the support frame 1 and are arranged in a bolt connection manner; the lifting seats 84 are respectively arranged at the lower parts of the inner walls at the left and right sides of the support frame 1.

Principle of operation

In the utility model, when in use, the support frame 1 is moved to a proper position, after the support frame 1 is moved to the proper position, the T-shaped adjusting rod 63 is rotated to enable the lower end of the T-shaped adjusting rod 63 to contact with a fixed position, the level of the support frame 1 is adjusted, then the lower end of the adsorption seat 65 adsorbs the fixed position, the adjusting nut 67 is rotated, the adjusting nut 67 and the negative pressure rod 66 are in threaded connection arrangement, the negative pressure rod 66 is enabled to move upwards, then gas in the adsorption seat 65 enters the fixed pipe 64, the fixing work is convenient in the use process, then the lower end of the drilling mechanism 5 corresponds to the drilling position, the drilling mechanism 5 is driven to rotate by the drilling motor 4, then the drilling work is carried out, the sliding block 72 and the inserting rod 74 are pushed by the buffer spring 75 in the work, the buffer work is convenient in the drilling process, through the following steps, prevent that the probing progress is too fast, cause the overheated influence work of drilling motor 4, accomplish the drilling work, at the in-process that carries out the drilling work, screw up puller bolt 83, cooperate through lift seat 84 and perpendicular detection chi 86, carry out the straightness detection work that hangs down to drilling mechanism 5, prevent to influence work at the in-process drilling mechanism 5 slope of probing, after accomplishing the probing, loosen puller bolt 83, make and remove wheel 85 contact ground, the work is removed in the in-process that uses to the convenience, and then the completion work.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims (9)

1. A drilling device for rock and soil exploration in building foundation construction comprises a support frame (1), a sliding groove (2), a level (3), a drilling motor (4), a drilling mechanism (5), an adsorbable support fixing seat structure (6), a slidable buffer drilling frame structure (7), an adjustable vertical detection moving seat structure (8), a push rod (9), a protective frame (10), a protective pad (11), a weight box (12), a box cover (13) and an arc clamping plate (14), wherein the sliding groove (2) is formed in the middle positions of the inner walls of the left side and the right side of the support frame (1) respectively; the leveling rulers (3) are respectively embedded at the left side and the right side of the upper part of the front surface of the support frame (1); the upper end of the drilling mechanism (5) is connected with the outer wall of the output shaft of the drilling motor (4) in a key way; the pushing rods (9) are respectively connected to the middle positions of the upper parts of the left side and the right side of the support frame (1) through bolts; the protective frame (10) is connected to the middle position of the top end in the support frame (1) through a bolt; the protective pad (11) is glued at the middle position of the top end in the protective frame (10); the weight box (12) is connected to the middle position of the upper end of the support frame (1) through a bolt; the box cover (13) is inserted in the middle of the upper inner part of the weight box (12); the arc-shaped clamping plates (14) are respectively bolted at the middle positions of the left side and the right side of the upper end of the support frame (1); the drilling device is characterized in that the adsorbable support fixing seat structures (6) in the drilling device for geotechnical investigation in building foundation construction are respectively arranged at the lower parts of the left side and the right side of the support frame (1) and are respectively arranged at the four corners of the lower end of the support frame (1); the slidable buffer drilling frame structure (7) is arranged in the sliding chute (2); the adjustable vertical detection moving seat structure (8) is arranged at the lower part of the outer wall of the support frame (1); the adsorbable support fixing seat structure (6) comprises a connecting seat (61), a threaded hole (62), a T-shaped adjusting rod (63), a fixing tube (64), an adsorption seat (65), a negative pressure rod (66) and an adjusting nut (67), wherein the threaded hole (62) is respectively formed in the left side and the right side of the inside of the connecting seat (61); the T-shaped adjusting rod (63) penetrates through the threaded hole (62) and is arranged in the middle position of the left side inside the connecting seat (61); the fixing pipe (64) penetrates through the threaded hole (62) and is arranged in the middle of the inner part of the right side of the connecting seat (61); the upper end of the adsorption seat (65) is glued to the lower end of the fixed pipe (64) and is communicated with the fixed pipe; the negative pressure rod (66) is inserted in the middle of the upper inner part of the fixed pipe (64) in a sliding and seamless manner; the adjusting nut (67) is in threaded connection with the upper part of the outer wall of the negative pressure rod (66).

2. The drilling apparatus for geotechnical investigation in building foundation construction according to claim 1, wherein said slidable buffer drilling frame structure (7) includes a sliding plate (71), a sliding block (72), a pressing pipe (73), an inserting rod (74) and a buffer spring (75), both ends of said sliding plate (71) are respectively bolted to the middle positions of the left and right sides of the sliding block (72); the pressing pipes (73) are respectively connected to the middle positions of the left side and the right side of the upper end of the sliding plate (71) through bolts; the insertion rods (74) are respectively in threaded connection with the middle position inside the lower side of the sliding block (72); the upper ends of the buffer springs (75) are respectively sleeved on the outer walls of the lower ends of the plug rods (74).

3. The drilling apparatus for geotechnical investigation in building foundation construction according to claim 1, wherein said adjustable vertical inspection moving seat structure (8) includes a socket pipe (81), a fixed plate (82), a tightening bolt (83), a lifting seat (84), a moving wheel (85) and a vertical inspection ruler (86), said fixed plate (82) is bolted to a left middle position of the socket pipe (81); the tightening bolt (83) is in threaded connection with the middle position of the front surface of the fixing plate (82); the lifting seat (84) penetrates through the middle position inside the fixing plate (82); the movable wheel (85) is connected to the lower end of the lifting seat (84) through a bolt; the vertical detection ruler (86) is embedded in the middle of the upper end of the lifting seat (84).

4. The drilling apparatus for geotechnical investigation in building foundation construction according to claim 1, wherein said negative pressure rod (66) is glued at its lower end with a silicone pad; the adjusting nut (67) is arranged at the upper end of the fixed pipe (64); the T-shaped adjusting rod (63) is arranged on the left side of the fixed pipe (64); the drilling motor (4) is arranged in the middle of the bottom end in the protective frame (10); the protective frame (10) adopts an inverted U-shaped stainless steel frame; the protective pad (11) is a silica gel pad.

5. The boring machine for geotechnical investigation in building foundation construction according to claim 1, wherein said connecting seats (61) are bolted to lower portions of left and right sides of the supporting frame (1) respectively and are disposed at four corners of a lower end of the supporting frame (1); the T-shaped adjusting rods (63) are respectively arranged between the fixed pipe (64) and the support frame (1).

6. The boring machine for geotechnical investigation in building foundation construction according to claim 2, wherein said sliding plate (71) is a rectangular parallelepiped stainless steel plate having a through hole formed at an inner middle position thereof; the pressing pipe (73) is made of a stainless steel pipe and is arranged at the upper part between the sliding blocks (72).

7. The drilling apparatus for geotechnical investigation in building foundation construction according to claim 2, wherein said sliding blocks (72) are slidably inserted into the insides of the sliding grooves (2), respectively; the lower ends of the buffer springs (75) are respectively bolted at the middle position of the bottom end in the sliding chute (2); the lower end of the drilling motor (4) is in bolted connection with the middle position of the upper end of the sliding plate (71), and an output shaft penetrates through the middle position inside the sliding plate (71); the drilling mechanism (5) is arranged in the middle of the lower end of the sliding plate (71).

8. The boring machine for geotechnical investigation in building foundation construction according to claim 3, wherein said jack bolt (83) is provided in contact with the elevating seat (84); the lifting seat (84) is arranged on the left side of the sleeve pipe (81).

9. The drilling rig for geotechnical investigation in building foundation construction according to claim 3, wherein said bell pipes (81) are respectively bell-jointed at the lower part of the outer wall of the supporting frame (1) and are arranged in bolt connection; the lifting seats (84) are respectively arranged at the lower parts of the inner walls at the left and right sides of the support frame (1).

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