Drilling and sampling equipment for highway engineering inspection

Abstract

The invention relates to the technical field of sampling devices, in particular to highway engineering inspection drilling and sampling equipment which comprises a driving piece, a sampling piece, a sampling piece, a sampling piece and a sampling device. The driving piece comprises a driving shaft and an output end arranged on the driving shaft; the sampling mechanism comprises a drill handle arranged at the output end and a drill bit arranged on the drill handle, an opening is formed in the drill bit, and the sampling mechanism further comprises an expansion groove formed in the drill bit; the taking-out piece comprises a sliding disc arranged outside the drill handle in a sliding mode and a connecting arm rotationally arranged on the sliding disc, an arc-shaped plate is rotationally arranged at one end of the connecting arm, and when the sample column core is located in a drilled hole in a road, the sliding disc is lifted, so that the connecting arm pulls the arc-shaped plate to deflect and clamp the sample column core; when the drill bit is taken out, the column core can be taken out together, when the column core is clamped in the drill bit, the sliding disc is pulled in a reciprocating mode to ascend and descend, so that the arc-shaped plate clamps and releases the column core, beating and column core supporting can be formed, and the column core can slide down from the drill bit conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a highway engineering inspection drilling sampling device. Background Art

[0002] For areas with frequent geological activities, inspection of highway projects is extremely important. In order to ensure the safety and quality of the highway, it is necessary to drill holes and take samples on the highway regularly, and then test the samples taken. By testing the samples taken, it can be determined whether the quality of the highway meets the standards and whether it is in a safe state, so as to ensure the safety of vehicles on the highway.

[0003] When drilling and sampling is performed, a sampling drill bit is used to cut and drill holes on the road surface. After the drill bit is removed, the sample still remains in the road and needs to be taken out by clamping it with a tool pliers, or the sampled sample is stuck inside the drill bit. After the drill bit is taken out, the drill bit needs to be knocked to shake the sample off, causing inconvenience in sample removal. For this reason, a highway engineering inspection drilling and sampling equipment is proposed. Summary of the invention

[0004] In view of the above-mentioned problem or the problem in the prior art that it is inconvenient to take out samples, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a highway engineering inspection drilling sampling equipment.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a highway engineering inspection drilling sampling equipment, comprising: a driving member, which includes a driving shaft and an output end arranged on the driving shaft; a sampling mechanism, which includes a drill shank arranged on the output end, and a drill bit arranged on the drill shank, the drill bit is provided with an opening, and also includes an expansion groove arranged on the drill bit; a removal member, which includes a sliding disk slidably arranged on the outside of the drill shank, and a connecting arm rotatably arranged on the sliding disk, one end of the connecting arm is rotatably provided with an arc plate, and the arc plate is rotatably connected to the inner wall of the drill bit.

[0007] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, wherein: a baffle is provided in the opening; an arc-shaped groove is provided on the arc-shaped plate, and a fitting surface is provided on the arc-shaped plate.

[0008] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, it also includes a lifting member, the lifting member includes a sliding sleeve and a resistance part arranged on the sliding sleeve; the sliding disk is provided with a resistance annular surface; the sliding sleeve is arranged outside the driving member.

[0009] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, it further includes: an extrusion member, which includes a turntable arranged on the outer wall of the driving shaft, and a roller arranged on the turntable; a conveying member, which includes a conveying pipe, and a nozzle arranged at the end of the conveying pipe, and a pressure-bearing part is provided on the conveying pipe; a supporting member is also included, which includes a ring body slidably arranged in the sliding sleeve; the conveying pipe is arranged inside the ring body.

[0010] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, wherein: a top ring is provided on the sliding sleeve, and a supporting portion is provided on the top ring; the conveying member also includes an expansion tube provided at the end of the conveying pipe, and a one-way valve provided at the end of the expansion tube, and a water inlet is provided on the one-way valve; the outer wall of the expansion tube and the inner wall of the top ring are in contact with each other; the conveying pipe is a ring structure arranged from bottom to top.

[0011] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, the driving member also includes a pulley arranged at the end of the driving shaft, a gearbox is provided at the end of the driving shaft, and the driving shaft is connected to the output end through the gearbox; the outer wall of the gearbox is connected to the inner wall of the ring body.

[0012] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, wherein: a flow focusing plate is provided on the sliding plate, a leakage hole is opened in the sliding plate, and a guide surface is provided in the sliding plate; a raised edge is provided on the drill bit; and a guide groove is provided on the connecting arm.

[0013] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, wherein: the conveying pipe is provided with an exposed portion, and the exposed portion is provided with a puncture hole.

[0014] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, wherein: a gathering part is provided on the sliding sleeve, an inclined hole is provided at the connection between the gathering part and the resistance part, and a sleeve is provided on the gathering part; the sleeve is arranged on the outside of the top end of the drill bit.

[0015] As a preferred solution of the highway engineering inspection drilling sampling equipment of the present invention, wherein: the ring body is provided with a limit bar and a connecting block, the limit bar and the connecting block are provided with an arc frame, and also include a fixed arm arranged on the arc frame; the sliding sleeve is provided with a limit groove and a movable groove; the inner wall of the limit groove is slidably connected to the outer wall of the limit bar, and the outer wall of the connecting block is slidably connected to the inner wall of the movable groove.

[0016] The highway engineering inspection drilling sampling equipment of the present invention has the following beneficial effects: when the sample column core is located in a hole drilled in the highway, the sliding plate is lifted so that the connecting arm pulls the arc plate to deflect and clamp, so that the column core can be taken out together with the drill bit; when the column core is stuck in the drill bit, the column core will be taken out together with the drill bit; at this time, the sliding plate is pulled up and down reciprocally to achieve the clamping and release of the arc plate on the column core; after controlling the clamping and release of the arc plate multiple times, it can form a slapping and support for the column core, so that the column core can slide out of the drill bit, so that the column core and the drill bit are disengaged, and the drill bit and the sample are separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 Schematic diagram of the overall structure of the drilling sampling equipment for highway engineering inspection.

[0019] Figure 2 Schematic diagram of the cross-sectional structure of the drilling sampling equipment for highway engineering inspection.

[0020] Figure 3 Schematic diagram of the connection structure of the support and lifting parts of the drilling sampling equipment for highway engineering inspection.

[0021] Figure 4 Schematic diagram of the cross-sectional structure of the sampling mechanism of the drilling sampling equipment for highway engineering inspection.

[0022] Figure 5 Schematic diagram of the structure of the conveyor components of the drilling sampling equipment for highway engineering inspection.

[0023] Figure 6 Schematic diagram of the structure of the lifting parts of the drilling sampling equipment for highway engineering inspection.

[0024] Figure 7 Schematic diagram of the structure of the extrusion components of the drilling sampling equipment for highway engineering inspection.

[0025] In the figure: 1, driving member; 11, driving shaft; 111, pulley; 112, gearbox; 113, output end; 2, sampling mechanism; 21, drill bit; 22, drill handle; 23, opening; 231, baffle; 24, expansion groove; 25, raised edge; 3, taking out member; 31, sliding plate; 311, abutting annular surface; 312, focusing plate; 313, leakage hole; 314, guide surface; 32, connecting arm; 321, guide groove; 33, arc plate; 331, arc groove; 332, fitting surface; 4, lifting member; 41, sliding Sleeve; 411, limit groove; 412, movable groove; 42, interference part; 43, gathering part; 44, inclined hole; 45, sheath; 46, top ring; 461, support part; 5, extrusion part; 51, turntable; 52, roller; 6, conveying part; 61, conveying pipe; 611, pressure-bearing part; 612, exposed part; 613, puncture hole; 62, nozzle; 63, expansion tube; 64, one-way valve; 641, water inlet; 7, support part; 71, ring body; 72, limit strip; 73, connecting block; 74, arc frame; 75, fixed arm. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, reference Figures 1 to 6 , which is the first embodiment of the present invention, provides a highway engineering inspection drilling sampling device, including a driving member 1, which includes a driving shaft 11, and an output end 113 arranged on the driving shaft 11; in this embodiment, the driving shaft 11 can rotate together with the output end 113.

[0030] The sampling mechanism 2 includes a drill shank 22 provided on the output end 113, and a drill bit 21 provided on the drill shank 22. The drill bit 21 is provided with an opening 23 and an expansion slot 24 provided on the drill bit 21. In the present embodiment, the output end 113 and the drill shank 22 are fixedly connected by bolts, and the rotation of the output end 113 can drive the drill bit 21 to rotate. The opening 23 and the expansion slot 24 are arranged in a one-to-one correspondence, and a plurality of openings 23 are provided, and the plurality of openings 23 are distributed circumferentially at equal intervals on the outer wall of the drill bit 21.

[0031] The removal member 3 includes a sliding disk 31 slidably arranged on the outside of the drill shank 22, and a connecting arm 32 rotatably arranged on the sliding disk 31. An arc plate 33 is rotatably provided at one end of the connecting arm 32. The arc plate 33 is rotatably connected to the inner wall of the drill bit 21. In this embodiment, the sliding disk 31 can slide on the outer wall of the drill shank 22. When the sliding disk 31 slides in a direction away from the drill bit 21, the arc plate 33 will shrink under the pull of the connecting arm 32. When the sliding disk 31 slides in a direction close to the drill bit 21, the arc plate 33 will expand under the push of the connecting arm 32.

[0032] Specifically, a blocking piece 231 is disposed in the opening 23 ; the setting of the blocking piece 231 can limit the expansion size of the sliding plate 31 .

[0033] The arc plate 33 is provided with an arc groove 331 , and a fitting surface 332 . The size of the arc groove 331 matches the size of the blocking piece 231 . The fitting surface 332 is provided on one side of the arc plate 33 located inside the drill bit 21 .

[0034] When in use, the driving member 1 can drive the sampling mechanism 2 to rotate when rotating, and the cutting of the road surface is achieved through the rotation of the drill bit 21. After the drilling is completed, the formed sample core column is located in the drilled hole.

[0035] It should be noted that due to the gravity of the sliding plate 31, the gravity presses on the connecting arm 32, which will make the arc plate 33 have an expansion movement tendency. Due to the limitation of the baffle 231, the outer wall surface of the arc plate 33 and the outer wall surface of the drill bit 21 can be in a flush state, so as to facilitate the drill bit 21 to go deeper during the drilling process. Moreover, when the arc groove 331 of the arc plate 33 and the baffle 231 are in close contact, the bottom end of the sliding plate 31 does not contact the top end of the drill bit 21, so that the gravity can completely act on the connecting arm 32, so that when the drill bit 21 is not rotating, there can be a greater gravity to keep the arc plate 33 in the maximum expansion state, so that the arc groove 331 of the arc plate 33 and the baffle 231 are in close contact, so that the inner and outer surfaces of the drill bit 21 and the arc plate 33 are in a flush state, which is convenient for deep drilling.

[0036] In addition, when the drill bit 21 rotates to drill a hole, the high-speed rotation of the drill bit 21 will cause the arc plate 33 to generate centrifugal force. Under the action of the centrifugal force, when the drill bit 21 is drilling, the arc groove 331 of the arc plate 33 and the baffle 231 increase the fitting force to ensure that during the drilling process, the inner and outer surfaces of the drill bit 21 and the arc plate 33 are in a flush state, which is convenient for deep drilling. Moreover, when the drill bit 21 penetrates deep into the road, the setting of the fitting surface 332 facilitates guiding the arc plate 33 to penetrate downward along the outer wall of the sample column core, so as to further ensure the shape of the drill bit 21 and the arc plate 33 during the drilling sampling process and improve the molding effect of the sample.

[0037] After the drilling is completed, the column core in the middle of the hole will be separated from the road, and the sample column core will exist in two situations: located in the hole drilled in the road, or stuck inside the drill bit 21 due to the effect of fine particles.

[0038] When the sample column core is located in the hole drilled in the highway, the sliding plate 31 is lifted so that the connecting arm 32 pulls the arc plate 33 to deflect and clamp it, and the fitting surface 332 fits against the outer wall of the column core. Lifting the sliding plate 31 will cause the arc plate 33 to clamp the column core. At this time, when the sliding plate 31 is lifted to take out the drill bit 21, the column core can be taken out together, which is convenient for taking out the sample. After taking it out, the arc plate 33 is expanded by releasing the sliding plate 31 to put down the column core.

[0039] When the column core is stuck in the drill bit 21, the column core will be taken out together with the drill bit 21. At this time, the sliding plate 31 is pulled up and down reciprocatingly to realize the clamping and release of the column core by the arc plate 33. After controlling the clamping and release of the arc plate 33 multiple times, it can form a beating and support for the column core, so that the column core can slide out of the drill bit 21, so that the column core and the drill bit 21 are disengaged, which is convenient for separating the drill bit 21 and the sample.

[0040] Example 2, reference Figure 1 to Figure 7 , which is the second embodiment of the present invention. Different from the previous embodiment, it also includes a lifting member 4, the lifting member 4 includes a sliding sleeve 41, and a resistance portion 42 arranged on the sliding sleeve 41; a resistance annular surface 311 is provided on the sliding plate 31; the resistance portion 42 is used to resist the resistance annular surface 311.

[0041] By the sliding sleeve 41 rising, the abutting portion 42 and the abutting annular surface 311 can be abutted against each other, so as to control the sliding plate 31 to rise and realize the clamping of the arc plate 33 .

[0042] The sliding sleeve 41 is arranged outside the driving member 1 .

[0043] Specifically, it also includes an extrusion member 5, which includes a turntable 51 arranged on the outer wall of the driving shaft 11, and a roller 52 arranged on the turntable 51; when the driving shaft 11 rotates, it can drive the turntable 51 to rotate.

[0044] The conveying member 6 includes a conveying pipe 61 and a nozzle 62 disposed at the end of the conveying pipe 61 . The conveying pipe 61 is provided with a pressure-bearing portion 611 . The pressure-bearing portion 611 is used for the roller 52 to be squeezed.

[0045] The structure further comprises a support member 7 , which comprises a ring body 71 slidably disposed in the sliding sleeve 41 ; the ring body 71 is rotationally connected to the driving shaft 11 .

[0046] The delivery pipe 61 is disposed inside the ring body 71 .

[0047] Furthermore, the ring body 71 is provided with a limit bar 72 and a connecting block 73, and the limit bar 72 and the connecting block 73 are provided with an arc frame 74, and also includes a fixed arm 75 arranged on the arc frame 74; the setting of the fixed arm 75 facilitates the installation of the entire device.

[0048] A limiting groove 411 and a movable groove 412 are provided on the sliding sleeve 41; the inner wall of the limiting groove 411 and the outer wall of the limiting strip 72 are slidably connected, and the outer wall of the connecting block 73 and the inner wall of the movable groove 412 are slidably connected. Through the arrangement of the limiting groove 411 and the movable groove 412, the limiting strip 72 and the connecting block 73, the movement of the sliding sleeve 41 is conveniently limited.

[0049] It should be noted that, refer to Figure 1 The sleeve 41 is composed of two semi-cylindrical shells, which are connected in the middle by bolts to facilitate opening the sleeve 41 and disassembly and replacement of the drill bit 21. There are three limit grooves 411 arranged in a circular array, and one movable groove 412 is provided.

[0050] The rest of the structure is the same as that of Example 1.

[0051] When in use, the fixed arm 75 is used to support the device, and the drive shaft 11 can rotate in the fixed arm 75. When the drive shaft 11 rotates, the turntable 51 will rotate together, and the roller 52 will continuously squeeze the pressure-bearing part 611. The end of the delivery pipe 61 away from the nozzle 62 is connected to the water supply. When the roller 52 presses the pressure-bearing part 611, the channel in the pressure-bearing part 611 can be cut off. When the drive shaft 11 drives the drill bit 21 to rotate, the roller 52 squeezes the pressure-bearing part 611. The roller 52 can push the fluid and gas in the pressure-bearing part 611 to move in the direction of the nozzle 62, thereby realizing the extraction of water. Therefore, in the process of drilling, the roller 52 squeezes the pressure-bearing part 611 to transport the water source to the nozzle 62 for spraying, thereby realizing the cooling of the drill bit 21. Moreover, as the rotation speed of the drill bit 21 increases, the speed of the water spraying from the nozzle 62 will also increase, so as to ensure that the drill bit 21 is in a good temperature range when working, thereby protecting the drill bit 21.

[0052] Example 3, reference Figure 1 to Figure 7 , which is the third embodiment of the present invention. Different from the previous embodiment, a top ring 46 is provided on the sliding sleeve 41, and a support portion 461 is provided on the top ring 46; when the support portion 461 contacts the top of the ring body 71, the resistance portion 42 and the resistance annular surface 311 of the sliding disk 31 are in a non-contact state. Therefore, when the drill bit 21 is drilling, no friction is generated between the sliding disk 31 and the resistance portion 42, which facilitates the high-speed rotation drilling of the drill bit 21.

[0053] The conveying member 6 also includes an expansion tube 63 arranged at the end of the conveying tube 61, and a one-way valve 64 arranged at the end of the expansion tube 63, and a water inlet 641 is provided on the one-way valve 64; the expansion tube 63 will expand according to the internal pressure, and the setting of the one-way valve 64 makes it possible for water to flow only into the expansion tube 63 from the one-way valve 64, and cannot flow from the expansion tube 63 to the one-way valve 64, and the water inlet 641 is used to connect to an external water supply.

[0054] The outer wall of the expansion tube 63 fits with the inner wall of the top ring 46; when the support portion 461 contacts the top of the ring body 71, the outer wall of the expansion tube 63 and the inner wall of the top ring 46 are in contact.

[0055] The delivery pipe 61 is arranged in a ring structure from bottom to top, referring to Figure 5 The arrangement of the delivery pipe 61 from bottom to top can increase the storage capacity of water in the delivery pipe 61.

[0056] Specifically, the driving member 1 also includes a pulley 111 arranged at the end of the driving shaft 11, and a gearbox 112 is provided at the end of the driving shaft 11, and the driving shaft 11 is connected to the output end 113 through the gearbox 112; the setting of the pulley 111 can conveniently connect a driving motor or a gasoline engine, thereby driving the driving shaft 11 to rotate, and the gearbox 112 is used to adjust the rotation speed so that the rotation speed from the driving shaft 11 to the output end 113 can be adjusted. When working, the rotation speed of the driving shaft 11 is lower than the rotation speed of the output end 113, which is convenient for increasing the rotation speed during drilling.

[0057] The outer wall of the gearbox 112 is connected to the inner wall of the ring body 71 , and the delivery pipe 61 spiraling around the outside of the gearbox 112 can also cool the gearbox 112 when delivering water.

[0058] Furthermore, a focusing plate 312 is provided on the sliding plate 31, a leakage hole 313 is opened in the sliding plate 31, and a guide surface 314 is provided in the sliding plate 31; the setting of the focusing plate 312 is convenient for guiding the water flow sprayed from the nozzle 62 and then converging it, so that the water flow can fall through the leakage hole 313 or flow along the guide surface 314.

[0059] The drill bit 21 is provided with a raised edge 25 ; the provision of the raised edge 25 facilitates the obstruction of water, so that the water falling on the drill bit 21 can more easily flow into the drill bit 21 from the expansion groove 24 .

[0060] A guide groove 321 is provided on the connecting arm 32 , and the setting of the guide groove 321 facilitates the falling water to flow onto the inner wall of the arc plate 33 .

[0061] An exposed portion 612 is provided on the delivery pipe 61, and a puncture hole 613 is provided on the exposed portion 612. The exposed portion 612 is exposed to the outside. When the pressure in the puncture hole 613 in the delivery pipe 61 is relatively low, the amount of water flowing out of the puncture hole 613 is relatively small. When the pressure in the delivery pipe 61 increases, the exposed portion 612 expands under pressure, causing the puncture hole 613 to expand, thereby increasing the drainage volume. That is, when the rotation speed of the drill bit 21 increases, the extrusion efficiency of the roller 52 increases, and the water jet speed increases.

[0062] Most of the delivery pipe 61 is located between the gearbox 112 and the ring body 71, and the arrangement from bottom to top increases the length of the delivery pipe 61. The injection port of the nozzle 62 is small. After the rotation speed of the roller 52 increases, only the exposed portion 612 exposed to the outside can expand, and the portion with a longer path between the gearbox 112 and the ring body 71 cannot expand due to the restrictions of the gearbox 112 and the ring body 71. Therefore, the pressure at the exposed portion 612 will be significantly increased, so as to open the puncture hole 613 and increase the water spraying efficiency of the puncture hole 613.

[0063] A gathering portion 43 is provided on the sliding sleeve 41 . An inclined hole 44 is provided at the connection between the gathering portion 43 and the abutment portion 42 . A protective sleeve 45 is provided on the gathering portion 43 . The protective sleeve 45 is sleeved on the outside of the top end of the drill bit 21 .

[0064] It should be noted that the spraying direction of the puncture hole 613 is toward the inner wall of the sleeve 41. The gathering portion 43 can guide the water flowing down the sleeve 41 to make it flow out along the inclined hole 44. A plurality of inclined holes 44 are provided, which are evenly spaced and distributed in a circle on the gathering portion 43. The inclined holes 44 guide the water to between the sheath 45 and the outer wall of the drill bit 21. The raised edge 25 can prevent the water from overflowing the upper end of the drill bit 21. The water flows downward along the outer wall of the drill bit 21 to cool the drill bit 21.

[0065] In summary, when the drill bit 21 is working, the inner wall and the outer wall of the drill bit 21 will contact the cooling water, which can improve the heat dissipation effect. After the water enters the drill bit 21, as the drill bit 21 rotates at high speed, it can also achieve a flushing effect between the inner wall of the drill bit 21 and the sampled column core, thereby preventing the column core from being stuck in the drill bit 21 and being difficult to remove.

[0066] It should be noted that, refer to Figure 6A bearing is provided on the abutment portion 42. When the abutment portion 42 contacts the abutment annular surface 311 of the sliding plate 31, the friction between the abutment portion 42 and the abutment annular surface 311 can be reduced by the setting of the bearing, thereby facilitating rotation between the two.

[0067] The rest of the structure is the same as that of Example 2.

[0068] When in use, the drive shaft 11 is driven by connecting the belt through the pulley 111. The rotation of the drive shaft 11 will drive the turntable 51 to rotate, and the roller 52 will continuously roll in a circle to squeeze the pressure-bearing part 611, so that water is transported in the delivery pipe 61. The drive shaft 11 drives the output end 113 to rotate through the speed change of the gearbox 112, so that the drill bit 21 can rotate and drill holes. When drilling, as the rotation speed of the drill bit 21 changes, the water spraying efficiency of the nozzle 62 and the needle hole 613 will also change to ensure the heat dissipation effect during the drilling process. At the same time, since the inner and outer walls of the drill bit 21 can be evenly contacted with the water, the cooling effect of the drill bit 21 can be further guaranteed. The water on the inner wall of the drill bit 21 can also form a flushing effect with the rotation of the drill bit 21 to avoid the column core and the drill bit 2 1 can improve the column core forming effect and avoid the damage of the column core when the column core is stuck and the drilling is not completed. After the drilling and coring are completed, the driving shaft 11 is controlled to rotate in the reverse direction, so that the roller 52 will draw the water remaining in the delivery pipe 61 back to the expansion tube 63, so that the expansion tube 63 is expanded, and the sliding sleeve 41 is lifted up. After the sliding sleeve 41 is lifted, the sliding plate 31 is lifted up by the resistance part 42, and the sliding plate 31 pulls the connecting arm 32, so that the arc plate 33 clamps the column core, and then the column core is taken out together when the drill bit 21 is taken out. After taking it out, the rotation direction of the driving shaft 11 is controlled to discharge the water in the expansion tube 63, so that the sliding sleeve 41 descends, and the arc plate 33 expands, so that the column core slides out of the drill bit 21, and sampling is achieved.

[0069] When the roller 52 squeezes the pressure-bearing portion 611, the pressure-bearing portion 611 is in a cut-off state. Therefore, even if the water source in the delivery pipe 61 is insufficient, the continuous operation of the two rollers 52 can also suck air from the nozzle 62 into the delivery pipe 61. The increase in the amount of air can also make the expansion tube 63 expand. Even if there is insufficient residual water in the delivery pipe 61, the expansion of the expansion tube 63 can still be achieved. However, since air is easily compressed and liquid is not easily compressed, when there is water in the delivery pipe 61, the clamping efficiency of the arc plate 33 is high and the clamping strength of the arc plate 33 is high.

[0070] When the column core is stuck in the drill bit 21, when the drill bit 21 is taken out, the driving shaft 11 is still controlled to rotate so that the arc plate 33 clamps the column core. However, since the rotation direction when clamping the column core is opposite to the direction when drilling, combined with the gravity of the column core itself, it is easier to get rid of the stuck state during the rotation process. By constantly changing the rotation direction of the driving shaft 11, the drill bit 21 will also constantly change the rotation direction. At the same time, the arc plate 33 will also constantly clamp and expand. At the same time, the nozzle 62 can also intermittently spray water to clean the inner wall of the drill bit 21. With the mutual cooperation of multiple structures, the stuck particles inside are washed and crushed. The direction of the friction between the column core and the drill bit 21 changes continuously during the rotation process, and the stuck column core can be effectively removed from the drill bit 21.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A highway engineering inspection drilling sampling equipment, characterized in that: include, A driving member (1) comprising a driving shaft (11) and an output end (113) arranged on the driving shaft (11); A sampling mechanism (2), comprising a drill shank (22) arranged on the output end (113), and a drill bit (21) arranged on the drill shank (22), wherein the drill bit (21) is provided with an opening (23), and further comprising an expansion groove (24) arranged on the drill bit (21); The removal member (3) comprises a sliding plate (31) slidably arranged outside the drill handle (22), and a connecting arm (32) rotatably arranged on the sliding plate (31), one end of the connecting arm (32) is rotatably provided with an arc plate (33), and the arc plate (33) is rotatably connected to the inner wall of the drill bit (21).

2. The highway engineering inspection drilling sampling equipment according to claim 1, characterized in that: A blocking piece (231) is provided in the opening (23); The arc-shaped plate (33) is provided with an arc-shaped groove (331), and the arc-shaped plate (33) is provided with a fitting surface (332).

3. The highway engineering inspection drilling sampling equipment according to claim 1 or 2, characterized in that: It also includes a lifting member (4), wherein the lifting member (4) includes a sliding sleeve (41) and a resisting portion (42) provided on the sliding sleeve (41); The sliding plate (31) is provided with a contact annular surface (311); The sliding sleeve (41) is arranged outside the driving member (1).

4. The highway engineering inspection drilling sampling equipment according to claim 3, characterized in that: It also includes an extrusion member (5), wherein the extrusion member (5) includes a rotating disk (51) disposed on the outer wall of the driving shaft (11), and a roller (52) disposed on the rotating disk (51); It also includes a conveying member (6), the conveying member (6) including a conveying pipe (61) and a nozzle (62) arranged at the end of the conveying pipe (61), and the conveying pipe (61) is provided with a pressure-bearing portion (611); It also includes a support member (7), wherein the support member (7) includes a ring body (71) slidably disposed in the sliding sleeve (41); The delivery pipe (61) is arranged inside the ring body (71).

5. The highway engineering inspection drilling sampling equipment according to claim 4, characterized in that: The sliding sleeve (41) is provided with a top ring (46), and the top ring (46) is provided with a supporting portion (461); The conveying member (6) further comprises an expansion pipe (63) arranged at the end of the conveying pipe (61), and a one-way valve (64) arranged at the end of the expansion pipe (63), wherein the one-way valve (64) is provided with a water inlet (641); The outer wall of the expansion tube (63) and the inner wall of the top ring (46) are in contact with each other; The delivery pipe (61) is in a ring-shaped structure arranged from bottom to top.

6. The highway engineering inspection drilling sampling equipment according to claim 5, characterized in that: The driving member (1) further comprises a pulley (111) arranged at the end of the driving shaft (11); a gearbox (112) is arranged at the end of the driving shaft (11); and the driving shaft (11) is connected to an output end (113) via the gearbox (112); The outer wall of the gearbox (112) is connected to the inner wall of the ring body (71).

7. The highway engineering inspection drilling sampling equipment according to claim 6, characterized in that: The sliding plate (31) is provided with a flow collecting plate (312), the sliding plate (31) is provided with a leakage hole (313), and the sliding plate (31) is provided with a flow guiding surface (314); The drill bit (21) is provided with a raised edge (25); The connecting arm (32) is provided with a guide groove (321).

8. The highway engineering inspection drilling sampling equipment according to claim 7, characterized in that: The delivery tube (61) is provided with an exposed portion (612), and the exposed portion (612) is provided with a puncture hole (613).

9. The highway engineering inspection drilling sampling equipment according to claim 8, characterized in that: The sliding sleeve (41) is provided with a gathering portion (43), an oblique hole (44) is provided at the connection between the gathering portion (43) and the abutment portion (42), and a protective sleeve (45) is provided on the gathering portion (43); The protective sleeve (45) is sleeved on the outside of the top end of the drill bit (21).

10. The highway engineering inspection drilling sampling equipment according to any one of claims 5 to 9, characterized in that: The ring body (71) is provided with a limit strip (72) and a connecting block (73), the limit strip (72) and the connecting block (73) are provided with an arc frame (74), and also includes a fixed arm (75) provided on the arc frame (74); The sliding sleeve (41) is provided with a limiting groove (411) and a movable groove (412); The inner wall of the limiting groove (411) is slidably connected to the outer wall of the limiting strip (72), and the outer wall of the connecting block (73) is slidably connected to the inner wall of the movable groove (412).

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