Portable drilling sampling device based on roadbed detection

Abstract

The invention discloses a portable drilling sampling device based on roadbed detection, which comprises a transportation positioning mechanism, the transportation positioning mechanism comprises a bearing underframe, the top of the bearing underframe is provided with a drilling sampling mechanism, and the front and rear parts of the two sides of the bottom of the bearing underframe are fixedly connected with universal wheels through fixing blocks. The top of the bearing bottom frame is fixedly connected with a supporting guide frame through a fixing block. According to the portable drilling and sampling device based on roadbed detection, the transportation positioning mechanism and the drilling and sampling mechanism are used in a combined mode, through the arrangement of the two mechanisms, a cutting drilling barrel can be limited through an annular sleeve plate during transportation, and it is guaranteed that the cutting drilling barrel is more stable during movement; meanwhile, when the cutting drilling barrel is unlocked subsequently, the bearing bottom frame can be limited, the stability during drilling is guaranteed, use of workers is facilitated, and after drilling is finished, the round pressing plate can be extruded to discharge samples through thrust generated when the cutting drilling barrel moves backwards.

Description

Technical Field

[0001] The invention relates to the technical field of roadbed detection, in particular to a portable drilling sampling device based on roadbed detection. Background Art

[0002] The roadbed is the foundation of the track or road surface, and is a geotechnical structure formed by excavation or filling. The main function of the roadbed is to provide the necessary conditions for track or road surface laying and train or vehicle operation, and to bear the static and dynamic loads of the track and locomotive vehicles or road surface and traffic loads, while transferring and diffusing the loads deep into the foundation. Currently, after the roadbed is poured, it is necessary to drill and sample it for testing. However, when sampling the roadbed, the existing drilling equipment usually drills holes in the road surface manually, but the stability is poor during manual operation, and the drill is prone to tilt, which is not convenient for drilling and sampling. Patent documents have been made to improve this.

[0003] For example, Chinese patent CN218823336U discloses a drilling sampling device for roadbed inspection, comprising a support frame and a sampling mechanism, wherein the support frame comprises a fixed sleeve, a guide tube, a strip level, an inclined support, an insertion rod, a bottom plate and a shock-absorbing pad, a vertical plate is arranged on the outer wall of the fixed sleeve, one end of the inclined support contacts the outer wall of the vertical plate, and the bottom plate is arranged on the other end of the inclined support; the sampling mechanism comprises a lifting rod and a drilling part, one end of the lifting rod passes through the guide tube, and the lifting rod can be slidably arranged along the guide tube; the drilling part is arranged at the end of the lifting rod. A drilling sampling device for roadbed inspection is provided, which is stable and strong and avoids the drilling rig from tilting during operation, which is beneficial to the drilling sampling operation.

[0004] Although the equipment in the above document can be used for stable drilling sampling by using a tripod, the equipment still has obvious defects in daily use, such as: The drilling sampling equipment is composed of several main mechanisms, including a motor, a cutting drill tube, and a support frame. The weight of these devices and structures is relatively heavy. When combined together, the weight is superimposed. A single worker cannot carry it conveniently when going out for construction. Usually, multiple workers are required to complete the operation. At the same time, the equipment needs to be folded for limit protection during transportation, and the internal samples need to be manually unloaded after the drilling is completed, which makes the overall use of the equipment cumbersome and inconvenient; Therefore, a portable drilling sampling device based on roadbed detection that can be easily used is now designed to solve such defects. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a portable drilling sampling device based on roadbed detection, which solves the problem that the existing roadbed drilling equipment is inconvenient to use.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a portable drilling sampling device based on roadbed detection, including a transport positioning mechanism, the transport positioning mechanism includes a load-bearing base frame, and the drilling sampling mechanism is installed on the top of the load-bearing base frame.

[0007] Preferably, the front and rear parts of both sides of the bottom of the load-bearing frame are fixedly connected with universal wheels through fixing blocks, the top of the load-bearing frame is fixedly connected with a support guide frame through a fixing block, the rear side of the top of the load-bearing frame is rotatably connected with a threaded column through a bearing member, the surface of the threaded column is threadedly connected with a U-shaped threaded sleeve, both sides of the bottom of the U-shaped threaded sleeve are fixedly connected with positioning support frames used in conjunction with the load-bearing frame through fixing blocks, and the positioning support frames are sleeved on both sides of the top of the load-bearing frame.

[0008] Preferably, a guide slide is fixedly connected to the top of the inner cavity of the positioning support frame, and a plurality of guide slides are provided, the bottom end of the guide slide passes through the load-bearing base frame and extends to the bottom of the load-bearing base frame, the rear portion between the two positioning support frames is fixedly connected to an annular sleeve plate through a fixing plate, the front portions on both sides of the load-bearing base frame are fixedly connected to limiting ring cylinders through fixing blocks, and the rear portion of the inner cavity of the load-bearing base frame is fixedly connected to an inclined pressure plate through a bracket.

[0009] Preferably, the front parts of both sides of the inner cavity of the load-bearing base frame are fixedly connected with a retractable frame through a fixing plate, and telescopic steel pipes are slidably installed on the opposite sides of the two retractable frames through openings, and the opposite ends of the two telescopic steel pipes are fixedly connected with an arc-shaped spraying frame, and one end of the telescopic steel pipe located inside the retractable frame is fixedly connected with an inclined push plate, and a first spring is sleeved on the surface of the telescopic steel pipe and located on the inner side of the retractable frame, and a rectangular notch used in conjunction with the inclined push plate is opened at the rear of the retractable frame.

[0010] Preferably, the front part of the load-bearing chassis is fixedly connected to a liquid storage tank via a fixing seat, the top of the liquid storage tank is fixedly connected to a water pump via an opening, both sides of the rear part of the water pump are fixedly connected to water pipes, and the rear ends of the two water pipes are respectively connected to the telescopic steel pipes on the same side.

[0011] Preferably, the drilling sampling mechanism includes two sliding sleeve frames, which are slidably mounted on both sides of the support guide frame surface, and one side of the sliding sleeve frame is fixedly connected to an electric telescopic rod used in conjunction with a limiting ring tube through a fixed block, an upper top plate is fixedly connected between the top ends of the two electric telescopic rods through a fixed block, the bottom of the upper top plate is fixedly connected to a motor through a bracket, the output shaft of the motor is fixedly connected to a rotating rod through a coupling, and the bottom end of the rotating rod is fixedly connected to a cutting drill barrel through a fixed block, and limiting side grooves are provided on the surface and rear of the cutting drill barrel, and a circular pressure plate is slidably mounted between the inner sides of the two limiting side grooves and inside the cutting drill barrel.

[0012] Preferably, the two opposite sides of the sliding sleeve frames are fixedly connected to a curved pressure plate via a fixing plate, the bottom end of the curved pressure plate is fixedly connected to a direction ring sleeve, a transverse tie rod is slidably installed on the surface of the curved pressure plate through an opening, the rear end of the transverse tie rod is fixedly connected to a sloped plug plate used in conjunction with the direction ring sleeve and the rectangular groove via a bracket, and the sloped plug plate is located on the inner side of the direction ring sleeve, and a second spring is provided on the surface of the transverse tie rod and on the rear side of the curved pressure plate.

[0013] Preferably, a drag rod is fixedly connected between the front ends of the two transverse tie rods via a fixing block, transverse guide grooves are provided on both sides of the surface of the drag rod, a transverse guide rod is fixedly connected between the two sides of the inner cavity of the transverse guide groove, a blocking seat used in conjunction with a support guide frame is slidably installed on the surface of the transverse guide rod, a third spring is fixedly connected between the blocking seat and the inner wall of the transverse guide groove, and the third spring is sleeved on the surface of the transverse guide rod. Beneficial Effects

[0014] The present invention provides a portable drilling sampling device based on roadbed detection. Compared with the existing technology, it has the following beneficial effects: (1) The portable drilling sampling device based on roadbed detection uses a transport positioning mechanism and a drilling sampling mechanism in combination. The arrangement of these two mechanisms can limit the cutting drill tube by using an annular sleeve during transportation, thereby ensuring that it is more stable during movement. At the same time, when the cutting drill tube is subsequently unlocked, the load-bearing chassis can also be limited, thereby ensuring stability during drilling and facilitating the use of the staff. After the drilling is completed, the thrust of the cutting drill tube when it moves backward can be used to squeeze the circular pressure plate to discharge the sample. At the same time, the linkage between the structures can be used to reset the arc-shaped spray frame. The entire operation process is convenient and fast, and can be completed without too many staff, which is satisfactory for current use.

[0015] (2) The portable drilling sampling device based on roadbed detection is used by installing a threaded column and a U-shaped threaded sleeve on the top of the load-bearing base frame, and is used in combination with a positioning support frame, an annular sleeve and a limiting ring. The arrangement of these structures can, during transportation, rotate the threaded column to drive the positioning support frame to rise without contacting the ground, and at the same time drive the annular sleeve to wrap the cutting drill tube and limit it, thereby ensuring stability during transportation. When drilling, the threaded column is rotated to allow the positioning support frame to contact the ground to stabilize the equipment, and at the same time, the rising load-bearing base frame can drive the limiting ring to fix the bottom end of the electric telescopic rod, thereby effectively ensuring the stability of the equipment during transportation and use, and facilitating the use of the staff.

[0016] (3) The portable drilling sampling device based on roadbed detection is equipped with a retractable frame on both sides of the inner side of the load-bearing base frame, and an arc-shaped spraying frame is installed on one side of the retractable frame using a telescopic steel pipe. It is used in conjunction with an inclined push plate and an inclined plug plate. The arrangement of these structures enables the inclined plug plate to be inserted into the retractable frame to squeeze the inclined push plate when the cutting drill tube moves to the front, thereby driving the two arc-shaped spraying frames to wrap the cutting drill tube, so that it can spray water to moisten it during the drilling operation, and can actively clean the surface of the cutting drill tube after it rises, so as to facilitate the use of the next drilling.

[0017] (4) The portable drilling sampling device based on roadbed detection is used in combination by opening limited edge grooves on the surface and rear of the cutting drill tube and installing a circular pressure plate inside the cutting drill tube. The arrangement of these structures can make use of the power of the staff pulling the cutting drill tube backward to reset it after the cutting drill tube completes drilling, so that the inclined pressure plate is inserted into the inner side of the limited edge groove, and the circular pressure plate is pressed by its own guiding property, so that the circular pressure plate pushes the sample out of the cutting drill tube, which is convenient for the staff to collect the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a rear view of the structure of the present invention; Figure 3 It is a schematic diagram of the structure of the transport positioning mechanism of the present invention; Figure 4 It is a schematic diagram of the positioning support frame, guide slide plate and annular sleeve plate structure of the present invention; Figure 5 It is a schematic diagram of the first spring, rectangular notch and inclined push plate structure of the present invention; Figure 6 It is a schematic diagram of the support guide frame, threaded column and inclined pressure plate structure of the present invention; Figure 7 It is a schematic diagram of the structure of the drilling sampling mechanism of the present invention; Figure 8 is a cross-sectional view of the drag rod structure of the present invention; Fig. 9 It is a schematic diagram of the cutting drill barrel, the limiting edge groove and the circular pressure plate structure of the present invention.

[0019] In the figure: 1, transport positioning mechanism; 2, drilling sampling mechanism; 101, load-bearing chassis; 102, universal wheel; 103, support guide frame; 104, threaded column; 105, U-shaped threaded sleeve; 106, positioning support frame; 107, guide slide plate; 108, annular sleeve; 109, limit ring cylinder; 110, inclined pressure plate; 111, return type shrinkage frame; 112, telescopic steel pipe; 113, arc spray frame; 114, first spring; 115, rectangular notch; 116, inclined push plate; 117, liquid storage box; 118, water pump; 119, water pipe; 201, sliding frame; 202, electric telescopic rod; 203, upper top plate; 204, motor; 205, rotating rod; 206, cutting drill tube; 207, limiting edge groove; 208, round pressure plate; 209, curved pressure plate; 210, direction ring; 211, horizontal pull rod; 212, inclined plug plate; 213, second spring; 214, drag rod; 215, horizontal guide groove; 216, horizontal guide rod; 217, blocking seat; 218, third spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-9 The present invention provides a technical solution: a portable drilling sampling device based on roadbed detection, including a transport positioning mechanism 1, the transport positioning mechanism 1 includes a load-bearing base frame 101, and a drilling sampling mechanism 2 is installed on the top of the load-bearing base frame 101.

[0022] Please refer to Figure 3 , Figure 4 , Figure 5 and Figure 6, showing the overall structure of the transport positioning mechanism 1, the front and rear parts of both sides of the bottom of the load-bearing chassis 101 are fixedly connected to universal wheels 102 through fixed blocks, the top of the load-bearing chassis 101 is fixedly connected to a support guide frame 103 through a fixed block, the rear side of the top of the load-bearing chassis 101 is rotatably connected to a threaded column 104 through a bearing member, the surface of the threaded column 104 is threadedly connected to a U-shaped threaded sleeve 105, and both sides of the bottom of the U-shaped threaded sleeve 105 are fixedly connected to a positioning support frame 106 used in conjunction with the load-bearing chassis 101 through fixed blocks, and the positioning support frame 1 06 is sleeved on both sides of the top of the load-bearing base frame 101, and the top of the inner cavity of the positioning support frame 106 is fixedly connected with a guide slide 107, and a plurality of guide slides 107 are provided, and the bottom end of the guide slide 107 passes through the load-bearing base frame 101 and extends to the bottom of the load-bearing base frame 101. The rear part between the two positioning support frames 106 is fixedly connected with an annular sleeve plate 108 through a fixing plate, and the front parts of both sides of the load-bearing base frame 101 are fixedly connected with a limited ring cylinder 109 through a fixing block, and the rear part of the inner cavity of the load-bearing base frame 101 is fixedly connected with an inclined pressure plate 110 through a bracket. The front part of both sides of the inner cavity of the frame 101 is fixedly connected with a return-shaped shrinking frame 111 through a fixing plate, and the opposite sides of the two return-shaped shrinking frames 111 are slidably installed with telescopic steel pipes 112 through openings, and the interior of the telescopic steel pipes 112 can conduct water, and the opposite ends of the two telescopic steel pipes 112 are fixedly connected with an arc-shaped spraying frame 113. The inner side of the arc-shaped spraying frame 113 is provided with a water spraying port, and the arc-shaped spraying frame 113 does not contact and fit with the cutting drill tube 206. One end of the telescopic steel pipe 112 located inside the return-shaped shrinking frame 111 is fixedly connected with an inclined push plate 116, and the telescopic steel pipe 112 is fixedly connected with an inclined push plate 116. A first spring 114 is sleeved on the surface of the steel pipe 112 and located on the inner side of the circular retractable frame 111. A rectangular notch 115 is provided at the rear of the circular retractable frame 111 for use with an inclined push plate 116. A liquid storage tank 117 is fixedly connected to the front of the load-bearing base frame 101 through a fixed seat. A water pump 118 is fixedly connected to the top of the liquid storage tank 117 through an opening. Water pipes 119 are fixedly connected to both sides of the rear of the water pump 118. The water pipes 119 are flexible hoses that can be retracted. The rear ends of the two water pipes 119 are respectively connected to the telescopic steel pipe 112 on the same side.

[0023] When in use, first use the universal wheel 102 to move the entire device to the specified position, then use the hand to twist the threaded column 104 and use the limit of the guide slide 107 to let the U-shaped threaded sleeve 105 push the positioning support frame 106 down. When the positioning support frame 106 descends and contacts the ground, the annular sleeve 108 is also separated from the cutting drill tube 206. Then, the two blocking seats 217 are pulled toward each other under the limit of the cross guide rod 216 by hand, and then the drag rod 214 is pulled by hand to use the cross tie rod 211 to drive the inclined plate 212 to move forward. Since the second spring 213 pushes the curved pressure plate 209 forward, the direction ring sleeve 210 will always be located in front of the inclined plate 212, and the curved pressure plate 209 moves forward. The sliding sleeve 201 will be used to drive the two electric telescopic rods 202 and the cutting drill tube 206 to move forward until the sliding sleeve 201 moves to the frontmost part of the support guide frame 103 and is blocked and stops. However, the drag rod 214 can also use the horizontal pull rod 211 to pull the inclined plane plug plate 212 forward. At this time, since the direction ring sleeve 210 is blocked by the return-shaped shrinking frame 111, the inclined plane plug plate 212 is pulled through the direction ring sleeve 210 and the rectangular notch 115 to enter the inner side of the return-shaped shrinking frame 111. After the inclined plane plug plate 212 enters the inner side of the return-shaped shrinking frame 111, it squeezes the inclined plane push plate 116. At this time, the two arc-shaped spraying frames 113 move toward each other to encircle the cutting drill tube 206. At this time, the drag rod 214 is located at the support guide frame 10 3, and then release the blocking seat 217 to allow the third spring 218 to use its elastic force to push the two blocking seats 217 to move back to each other and get stuck with the support guide frame 103, so as to position the inclined plate 212 and the cutting drill tube 206. Then the staff rotates the threaded column 104 again to continue to push the positioning support frame 106 downward. At this time, the load-bearing base frame 101 and the universal wheel 102 are lifted up a distance and leave the ground under the thrust of the positioning support frame 106. After the positioning support frame 106 is completely in contact with the ground, it supports the equipment. At the same time, the rising load-bearing base frame 101 will drive the limiting ring cylinder 109 to cover the electric telescopic rod 202 for fixing again, and then start the electric telescopic rod 202 and the motor 204. After the machine 204 is started, the rotating rod 205 is used to drive the cutting drill barrel 206 to rotate, and the electric telescopic rod 202 pushes the cutting drill barrel 206 to descend. At this time, the rotating cutting drill barrel 206 is pushed to contact the ground and rotate and cut. At the same time, the water pump 118 is started to use the water pipe 119 to inject water into the interior of the telescopic steel pipe 112. Then the water is sprayed on the surface of the cutting drill barrel 206 through the arc-shaped spray frame 113. The water descends along the cutting drill barrel 206 to moisten the ground until the cutting drill barrel 206 completes the cutting of the roadbed. At this time, the sample is located on the inner side of the cutting drill barrel 206 and the circular pressure plate 208 is pushed up to the upper part of the cutting drill barrel 206. Then the motor 204 is turned off to make the limiting edge groove 207 face the front.

[0024] Please refer to Figure 7 , Figure 8 and Fig. 9, showing the overall structure of the drilling sampling mechanism 2, the drilling sampling mechanism 2 includes two sliding sleeve frames 201, the two sliding sleeve frames 201 are respectively slidably installed on both sides of the surface of the support guide frame 103, one side of the sliding sleeve frame 201 is fixedly connected with an electric telescopic rod 202 used in conjunction with the limiting ring tube 109 through a fixed block, the top of the two electric telescopic rods 202 is fixedly connected with an upper top plate 203 through a fixed block, the bottom of the upper top plate 203 is fixedly connected with a motor 204 through a bracket, the motor 204 is a servo motor, the output shaft of the motor 204 is fixedly connected with a rotating rod 205 through a coupling, the bottom end of the rotating rod 205 is fixedly connected with a cutting drill tube 206 through a fixed block, the surface and rear of the cutting drill tube 206 are both provided with a limiting side groove 207, a circular pressure plate 208 is slidably installed between the inner sides of the two limiting side grooves 207 and inside the cutting drill tube 206, and the opposite sides of the two sliding sleeve frames 201 are fixedly connected with a curved pressure plate 209 through a fixed plate The bottom end of the curved pressure plate 209 is fixedly connected with a direction ring sleeve 210, and a horizontal tie rod 211 is slidably installed on the surface of the curved pressure plate 209 through an opening. The rear end of the horizontal tie rod 211 is fixedly connected with an inclined plate 212 used in conjunction with the direction ring sleeve 210 and the rectangular notch 115 through a bracket, and the inclined plate 212 is located on the inner side of the direction ring sleeve 210. The surface of the horizontal tie rod 211 and the rear side of the curved pressure plate 209 are sleeved with a second spring 213. The two horizontal tie rods 21 1 is fixedly connected with a drag rod 214 through a fixing block, and transverse guide grooves 215 are provided on both sides of the surface of the drag rod 214. A transverse guide rod 216 is fixedly connected between the two sides of the inner cavity of the transverse guide groove 215. A blocking seat 217 used in conjunction with the support guide frame 103 is slidably installed on the surface of the transverse guide rod 216. A third spring 218 is fixedly connected between the blocking seat 217 and the inner wall of the transverse guide groove 215, and the third spring 218 is sleeved on the surface of the transverse guide rod 216.

[0025] After the cutting and drilling is completed, the electric telescopic rod 202 is started to push the motor 204 and the cutting drill tube 206 to rise. During the rising process, the arc-shaped spray frame 113 sprays and cleans the surface of the cutting drill tube 206. After the cutting drill tube 206 rises to the top, the threaded column 104 is rotated in the opposite direction to raise the positioning support frame 106, and the universal wheel 102 is lowered to contact the ground. At this time, the limit ring tube 109 is separated from the bottom end of the electric telescopic rod 202 to unlock, and then the blocking seal seat 217 is pulled again to separate from the support guide frame 103, and then the drag rod 214 is pushed to make the inclined plug plate 212 move forward and backward and be pulled out of the rectangular notch 115, so that the arc-shaped spray frame 113 is under the elastic force of the first spring 114. Retract and separate from the cutting drill tube 206. When the inclined plug plate 212 moves to the rearmost part, continue to push to allow the electric telescopic rod 202 to drive the cutting drill tube 206 to move backward. At this time, the backward moving cutting drill tube 206 will cause the inclined pressure plate 110 to insert into the inner side of the limiting edge groove 207, and the circular pressure plate 208 will push the sample down and discharge the cutting drill tube 206 after being squeezed by the inclined pressure plate 110. When the cutting drill tube 206 moves backward to the rearmost part, it stops, and then the threaded column 104 is rotated in the opposite direction again to make the positioning support frame 106 finally rise to the top and separate from the ground. At the same time, the annular sleeve plate 108 is docked with the cutting drill tube 206 to limit it, which is convenient for subsequent movement, and the sample is collected and tested after being discharged.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A portable drilling sampling device based on roadbed detection, comprising a transport positioning mechanism (1), characterized in that: The transport positioning mechanism (1) comprises a load-bearing base frame (101), and a drilling sampling mechanism (2) is installed on the top of the load-bearing base frame (101); The front and rear parts of both sides of the bottom of the load-bearing base frame (101) are fixedly connected to universal wheels (102) via fixed blocks, the top of the load-bearing base frame (101) is fixedly connected to a support guide frame (103) via a fixed block, the rear side of the top of the load-bearing base frame (101) is rotatably connected to a threaded column (104) via a bearing member, the surface of the threaded column (104) is threadedly connected to a U-shaped threaded sleeve (105), and both sides of the bottom of the U-shaped threaded sleeve (105) are fixedly connected to positioning support frames (106) used in conjunction with the load-bearing base frame (101) via fixed blocks, and the positioning support frames (106) are sleeved on both sides of the top of the load-bearing base frame (101); A guide slide plate (107) is fixedly connected to the top of the inner cavity of the positioning support frame (106), and a plurality of guide slide plates (107) are provided. The bottom end of the guide slide plate (107) penetrates the load-bearing base frame (101) and extends to the bottom of the load-bearing base frame (101). The rear portion between the two positioning support frames (106) is fixedly connected to an annular sleeve plate (108) via a fixing plate. The front portions of both sides of the load-bearing base frame (101) are fixedly connected to a limiting ring cylinder (109) via fixing blocks. The rear portion of the inner cavity of the load-bearing base frame (101) is fixedly connected to an inclined pressure plate (110) via a bracket. The drilling sampling mechanism (2) comprises two sliding sleeve frames (201), the two sliding sleeve frames (201) are respectively slidably mounted on both sides of the surface of the support guide frame (103), one side of the sliding sleeve frame (201) is fixedly connected to an electric telescopic rod (202) used in conjunction with a limiting ring tube (109) via a fixing block, an upper top plate (203) is fixedly connected between the top ends of the two electric telescopic rods (202) via a fixing block, the bottom of the upper top plate (203) is fixedly connected to a motor (204) via a bracket, the output shaft of the motor (204) is fixedly connected to a rotating rod (205) via a coupling, the bottom end of the rotating rod (205) is fixedly connected to a cutting drill tube (206) via a fixing block, the surface and rear of the cutting drill tube (206) are both provided with limiting side grooves (207), and a circular pressure plate (208) is slidably mounted between the inner sides of the two limiting side grooves (207) and located inside the cutting drill tube (206); The two sliding sleeve frames (201) are fixedly connected to a curved pressure plate (209) on opposite sides via a fixing plate, the bottom end of the curved pressure plate (209) is fixedly connected to a direction ring sleeve (210), a cross tie rod (211) is slidably mounted on the surface of the curved pressure plate (209) via an opening, the rear end of the cross tie rod (211) is fixedly connected to an inclined plate (212) used in conjunction with the direction ring sleeve (210) and the rectangular notch (115) via a bracket, and the inclined plate (212) is located on the inner side of the direction ring sleeve (210), and a second spring (213) is sleeved on the surface of the cross tie rod (211) and located on the rear side of the curved pressure plate (209); A drag rod (214) is fixedly connected between the front ends of the two transverse tie rods (211) via a fixing block, transverse guide grooves (215) are provided on both sides of the surface of the drag rod (214), a transverse guide rod (216) is fixedly connected between the two sides of the inner cavity of the transverse guide groove (215), a blocking seat (217) used in conjunction with the support guide frame (103) is slidably mounted on the surface of the transverse guide rod (216), a third spring (218) is fixedly connected between the blocking seat (217) and the inner wall of the transverse guide groove (215), and the third spring (218) is sleeved on the surface of the transverse guide rod (216).

2. A portable drilling sampling device based on roadbed detection according to claim 1, characterized in that: The front parts of both sides of the inner cavity of the load-bearing chassis (101) are fixedly connected to a retractable frame (111) via a fixing plate; the two opposite sides of the retractable frames (111) are slidably mounted with telescopic steel pipes (112) via openings; the opposite ends of the two telescopic steel pipes (112) are fixedly connected to an arc-shaped spraying frame (113); one end of the telescopic steel pipe (112) located inside the retractable frame (111) is fixedly connected to an inclined push plate (116); a first spring (114) is sleeved on the surface of the telescopic steel pipe (112) and located inside the retractable frame (111); and a rectangular notch (115) for use with the inclined push plate (116) is opened at the rear of the retractable frame (111).

3. A portable drilling sampling device based on roadbed detection according to claim 2, characterized in that: The front portion of the load-bearing chassis (101) is fixedly connected to a liquid storage tank (117) via a fixing seat, the top of the liquid storage tank (117) is fixedly connected to a water pump (118) via an opening, and both sides of the rear portion of the water pump (118) are fixedly connected to water pipes (119), and the rear ends of the two water pipes (119) are respectively connected to the telescopic steel pipe (112) on the same side.

Images