A drilling sampling device for highway engineering quality inspection

Abstract

The present invention provides a highway engineering quality inspection drilling sampling device, which relates to the technical field of quality inspection drilling sampling. It includes a drilling frame and a sampling mechanism. A telescopic driving member and a telescopic drill rod are installed on the drilling frame, and the sampling mechanism includes a fixed cylinder, a rotating cylinder and a rope saw. The upper end of the fixed cylinder is installed on the lower end of the telescopic drill rod, and the upper end of the rotating cylinder is nested in the lower end of the fixed cylinder. A rotating driving member is installed in the fixed cylinder, and the lower end of the rotating cylinder is provided with driving teeth along the circumferential direction. A vertical driving member and a plurality of guide seats are installed on the outer wall of the fixed cylinder. A support rod is vertically slidably installed in each guide seat, and the upper end of each support rod is connected by an abutment ring. The telescopic end of the vertical driving member is connected to the abutment ring. A limit portion is provided at the lower end of the support rod, and the rope saw bypasses the limit portion. The highway engineering quality inspection drilling sampling device can timely cool the drilling tool when the drill bit is drilling and sampling, and at the same time avoid splashing and turbulence of the abrasive mixture.

Description

Technical Field

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

[0002] After the highway construction, the highway supervisor needs to inspect the construction quality of the highway. The inspection items include road surface flatness, road surface permeability, road surface roughness, and whether its thickness meets the standards, etc. Quality inspection plays an important role in ensuring the quality of highway construction, improving the quality of road use and investment benefits, and will continue to play an irreplaceable role in future engineering construction and management. When it is necessary to inspect the thickness of the highway, first use chalk to draw a circle on the highway, then align the coring drill bit on the highway drilling and coring machine with the circle, and then start the equipment to drill a hole here. Since the coring drill bit is hollow, a highway sample will appear inside the hole. Then start the highway drilling and coring machine again, lift the coring drill bit, and use a metal clamp to take the highway sample out of the borehole. Then use a ruler to measure its various aspects to obtain the required data. The highway drilling and coring machine, metal clamp and ruler used in this process can be called a highway engineering pavement quality detection device.

[0003] However, the existing road quality inspection device for highway engineering projects has the problem that after the drill bit of the coring machine drills into the road surface, the drill bit is in constant contact with the road surface, and the friction time is long, resulting in a large amount of friction heat. The existing technology uses water flushing to dissipate heat, but it will cause the abrasive mixture to splash and flow. Therefore, it is necessary to design a highway engineering quality inspection drilling sampling device that can cool the drilling tool in time when the drill bit is drilling and sampling, and at the same time avoid the abrasive mixture from splashing and flowing.

[0004] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0005] Based on this, it is necessary to provide a highway engineering quality inspection drilling sampling device to address the problems existing in the current highway engineering pavement quality inspection device, which can cool the drilling tool in time when the drill bit is drilling and sampling, and at the same time avoid splashing and turbulence of the grinding chip mixture.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A highway engineering quality inspection drilling sampling device, the highway engineering quality inspection drilling sampling device comprising:

[0008] A drilling frame, on which a telescopic driving member and a telescopic drill rod are installed, wherein the telescopic driving member is used to drive the telescopic drill rod to vertically telescope; and

[0009] A sampling mechanism, the sampling mechanism comprising a fixed cylinder, a rotating cylinder and a rope saw, the upper end of the fixed cylinder is mounted on the lower end of the telescopic drill rod, the upper end of the rotating cylinder is nested in the lower end of the fixed cylinder, a rotating drive member is mounted in the fixed cylinder, the rotating drive member can drive the rotating cylinder to rotate relative to the fixed cylinder around a vertical direction, the lower end of the rotating cylinder is provided with driving teeth along the circumference, the driving teeth can mesh with the rope saw to drive the rope saw to rotate;

[0010] A vertical driving member and a plurality of guide seats are installed on the outer wall of the fixed cylinder, and a support rod is vertically slidably installed in each of the guide seats. The plurality of guide seats are arranged at intervals along the circumference of the fixed cylinder, and the upper ends of the support rods are connected by abutment rings, and the telescopic end of the vertical driving member is connected to the abutment ring. The telescopic end of the vertical driving member can drive the abutment ring to drive the support rod to slide vertically along the guide seat, and a limiting portion is provided at the lower end of the support rod, and the rope saw bypasses the limiting portion, and the rope saw can move relative to the limiting portion along the length direction of the rope saw.

[0011] As a further improvement of the above technical solution:

[0012] Furthermore, the rope saw comprises a rope, a plurality of saw cylinders are sleeved on the rope, the plurality of saw cylinders are arranged at intervals along the length direction of the rope, and the saw cylinders can rotate relative to the rope;

[0013] The limiting part includes a spiral wheel and a rotating wheel which are horizontally rotatably mounted on the support rod, the spiral wheel and the rotating wheel are arranged at an interval, the rope saw is limited between the spiral wheel and the rotating wheel, and the spiral wheel can drive the saw cylinder to rotate relative to the rope.

[0014] During cutting, the rope saw is limited between the spiral wheel and the rotating wheel. The spiral wheel can drive the saw barrel to rotate relative to the rope, changing the angle of the saw barrel relative to the rope, thereby achieving uniform circulation of the cutting tools on the surface of the saw barrel and avoiding long-term use of some of the cutting tools on the surface of the saw barrel, resulting in temperature increase or damage that affects the cutting efficiency.

[0015] Furthermore, when the driving teeth are engaged with the rope saw to drive the rope saw to rotate, the diameter of the rope saw is larger than the diameter of the rotating cylinder. During cutting, since the diameter of the rope saw is larger than the diameter of the rotating cylinder, the outer wall of the rotating cylinder and the inner wall of the sampling hole are loosely matched to prevent the rotating cylinder from rotating relative to the inner wall of the sampling hole and generating friction and heat to damage the rotating cylinder.

[0016] Furthermore, a driving gear is installed on the driving shaft of the rotary drive member, and a driving rack is provided on the inner side wall of the rotating cylinder along the circumferential direction, and the driving gear is meshed with the driving rack. During cutting, since the diameter of the rope saw is larger than the diameter of the rotating cylinder, the outer side wall of the rotating cylinder and the inner side wall of the sampling hole are clearance-matched, so as to avoid the rotating cylinder rotating relative to the inner side wall of the sampling hole to generate friction and heat to damage the rotating cylinder.

[0017] Furthermore, a plurality of running wheels are installed on the lower side of the drilling frame. The drilling frame can be moved by the plurality of running wheels, so as to adjust the position of the drilling frame.

[0018] Further, a handrail is installed on the drilling frame, and the drilling frame can be driven to move through the running wheels by the handrail. An operator can drive the drilling frame to move through the running wheels by the handrail, thereby adjusting the position of the drilling frame.

[0019] Furthermore, a handle is provided on the upper side of the drilling frame, and the drilling frame can be lifted by the handle. An operator can lift the drilling frame by the handle to move it, thereby adjusting the position of the drilling frame.

[0020] Further, the guide seat is installed on the outer side wall of the fixing tube by bolts. Of course, it can be understood that the guide seat can also be installed on the outer side wall of the fixing tube by other methods.

[0021] Furthermore, the rotary drive member is a drive motor. Of course, it can be understood that the rotary drive member can also be other components.

[0022] Further, the telescopic drive member and the vertical drive member are both hydraulic cylinders. Of course, it can be understood that the telescopic drive member and the vertical drive member can also be other components.

[0023] The beneficial effects of the present invention are:

[0024] The highway engineering quality inspection drilling sampling device of the present invention, when it is necessary to use the highway engineering quality inspection drilling sampling device for drilling sampling, firstly, a corresponding number of cooling holes are drilled on the circumference of the sampling target area according to the number of support rods, and the depth of the cooling holes is deeper than the sampling depth, and then a coolant, such as cooling water, is injected into the cooling holes, and then the drilling frame is moved to align the sampling mechanism with the sampling target area, and the lower end of the support rod is extended to the corresponding cooling hole, and the telescopic driving member drives the telescopic drill rod to extend vertically so that the rope saw abuts against the surface of the sampling target area, and then the rotating driving member drives the rotating cylinder to rotate relative to the fixed cylinder around the vertical direction, the driving teeth are engaged with the rope saw to drive the rope saw to rotate, and at the same time, the telescopic driving member drives the telescopic drill rod to extend synchronously vertically so that the rope saw moves downward for sampling and cutting. During cutting, the rope saw bypassing the limiting portion will be cooled by the coolant in the cooling hole, thereby cooling the rope saw and transferring the grinding chips to the cooling hole, and the grinding chips can be prevented from splashing due to the action of the coolant.

[0025] When the sampling depth is reached, the sample core is shaken to break the sample core from the foundation, the rotating drive member stops driving, the telescopic end of the vertical drive member extends to drive the support rod to slide vertically downward along the guide seat, the rope saw is disengaged from the driving teeth and straightens to lift the sample core from the bottom of the sample core, and finally the telescopic drive member drives the telescopic drill rod to shrink vertically to allow the rope saw to take out the sample core. The highway engineering quality inspection drilling sampling device can cool down the drilling tool in time when the drill bit is drilling and sampling, while avoiding splashing and turbulence of the grinding chip mixture, and can facilitate the removal of the sample core. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a highway engineering quality inspection drilling sampling device according to an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the structure of a sampling mechanism of a highway engineering quality inspection drilling sampling device according to an embodiment of the present invention Figure 1 ;

[0028] Figure 3 An exploded view of a sampling mechanism of a drilling sampling device for highway engineering quality inspection according to an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a sampling mechanism of a highway engineering quality inspection drilling sampling device according to an embodiment of the present invention Figure 2 ;

[0030] Figure 5 It is a front view of a sampling mechanism of a drilling sampling device for highway engineering quality inspection according to an embodiment of the present invention;

[0031] Figure 6 for Figure 5 Sectional view of section AA;

[0032] Figure 7 for Figure 5 Magnified view of area B.

[0033] in:

[0034] 100, drilling frame; 110, walking wheel; 120, handrail; 130, handle; 200, telescopic drive member; 210, telescopic drill rod; 300, sampling mechanism; 301, fixed cylinder; 302, vertical drive member; 303, abutment ring; 3031, support rod; 3032, spiral wheel; 3033, rotating wheel; 304, guide seat; 305, rotating cylinder; 3051, driving rack; 3052, driving tooth; 306, rope saw; 3061, saw cylinder; 3062, rope; 307, rotating drive member. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] The embodiment of the present invention provides a highway engineering quality inspection drilling sampling device, which can timely cool down the drilling tool when the drill bit is drilling and sampling, and at the same time avoid splashing and turbulence of abrasive mixed liquid.

[0039] like Figure 1 As shown, a highway engineering quality inspection drilling and sampling device provided in an embodiment of the present invention includes a drilling frame 100 and a sampling mechanism 300 .

[0040] Specifically, a telescopic driving member 200 and a telescopic drill rod 210 are installed on the drilling frame 100, and the telescopic driving member 200 is used to drive the telescopic drill rod 210 to be telescoped in the vertical direction.

[0041] like Figure 2 and Figure 3 As shown, the sampling mechanism 300 includes a fixed cylinder 301, a rotating cylinder 305 and a rope saw 306. The upper end of the fixed cylinder 301 is installed on the lower end of the telescopic drill rod 210, and the upper end of the rotating cylinder 305 is nested in the lower end of the fixed cylinder 301. A rotating drive member 307 is installed in the fixed cylinder 301. The rotating drive member 307 can drive the rotating cylinder 305 to rotate in a vertical direction relative to the fixed cylinder 301. The lower end of the rotating cylinder 305 is circumferentially provided with driving teeth 3052, and the driving teeth 3052 can engage with the rope saw 306 to drive the rope saw 306 to rotate.

[0042] A vertical driving member 302 and a plurality of guide seats 304 are installed on the outer wall of the fixed cylinder 301, and a support rod 3031 is vertically slidably installed in each guide seat 304. The plurality of guide seats 304 are arranged at intervals along the circumference of the fixed cylinder 301, and the upper ends of the support rods 3031 are connected through abutment rings 303, and the telescopic end of the vertical driving member 302 is connected to the abutment ring 303. The telescopic end of the vertical driving member 302 can drive the abutment ring 303 to drive the support rod 3031 to slide vertically along the guide seat 304. A limiting portion is provided at the lower end of the support rod 3031, and the rope saw 306 bypasses the limiting portion, and the rope saw 306 can move relative to the limiting portion along the length direction of the rope saw 306.

[0043] When it is necessary to use the highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention to perform drilling sampling, first, a corresponding number of cooling holes are drilled on the periphery of the sampling target area according to the number of support rods 3031, and the depth of the cooling holes is deeper than the sampling depth, and then a coolant, such as cooling water, is injected into the cooling holes. Then, the drilling frame 100 is moved to align the sampling mechanism 300 with the sampling target area, and the lower end of the support rod 3031 is extended to the corresponding cooling hole. The telescopic drive member 200 drives the telescopic drill rod 210 to extend vertically so that the rope saw 306 abuts against the surface of the sampling target area.

[0044] Afterwards, the rotating drive member 307 drives the rotating cylinder 305 to rotate in the vertical direction relative to the fixed cylinder 301, and the driving teeth 3052 engage with the rope saw 306 to drive the rope saw 306 to rotate. At the same time, the telescopic drive member 200 drives the telescopic drill rod 210 to extend synchronously in the vertical direction to move the rope saw 306 downward for sampling and cutting. During cutting, the rope saw 306 bypassing the limiting portion will be cooled by the coolant in the cooling hole, thereby cooling the rope saw 306 and transferring the grinding chips to the cooling hole. The cooling liquid can prevent the grinding chips from splashing.

[0045] When the sampling depth is reached, the sample core is shaken to break the gap between the sample core and the foundation, and the rotary drive member 307 stops driving. Figure 4 As shown, the telescopic end of the vertical driving member 302 extends to drive the support rod 3031 to slide vertically downward along the guide seat 304, and the rope saw 306 is straightened after disengaging from the driving teeth 3052 to lift the sample core from the bottom of the sample core. Finally, the telescopic driving member 200 drives the telescopic drill rod 210 to contract vertically so that the rope saw 306 can take out the sample core.

[0046] The existing road engineering pavement quality inspection device has the problem that after the drill bit of the coring machine drills into the road surface, the drill bit is in constant contact with the road surface, and the friction time is long, resulting in a large amount of friction heat. The existing technology uses water flushing to dissipate heat, but it will cause the abrasive mixture to splash and flow. The highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention can cool the drilling tool in time when the drill bit is drilling and sampling, while avoiding the splash and turbulence of the abrasive mixture, and can facilitate the removal of the sample core.

[0047] In this embodiment, if Figure 2 and Figure 3 As shown, three guide seats 304 are installed on the outer wall of the fixed cylinder 301, and the three guide seats 304 are evenly spaced on the outer wall along the circumference of the fixed cylinder 301. When it is necessary to use the highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention for drilling sampling, three cooling holes are first evenly drilled on the circumference of the sampling target area. Of course, it can be understood that other numbers of guide seats 304 can also be installed on the outer wall of the fixed cylinder 301, for example, four, etc. In this embodiment, the guide seat 304 is installed on the outer wall of the fixed cylinder 301 by bolts, the rotating drive member 307 is a driving motor, and the telescopic drive member 200 and the vertical drive member 302 are both hydraulic cylinders. Of course, it can be understood that the guide seat 304 can also be installed on the outer wall of the fixed cylinder 301 by other means, the rotating drive member 307 can also be other driving components, and the telescopic drive member 200 and the vertical drive member 302 can also be other components, for example, telescopic cylinders, linear motors, etc.

[0048] The highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention is specifically, as follows Figure 2 and Figure 3 As shown, the rope saw 306 includes a rope 3062, on which a plurality of saw cylinders 3061 are sleeved. The plurality of saw cylinders 3061 are spaced apart along the length direction of the rope 3062, and the saw cylinders 3061 can rotate relative to the rope 3062; Figure 5 , Figure 6 and Figure 7 As shown, the limiting part includes a spiral wheel 3032 and a rotating wheel 3033 which are horizontally rotatably mounted on a support rod 3031, the spiral wheel 3032 and the rotating wheel 3033 are spaced apart, and the rope saw 306 is limited between the spiral wheel 3032 and the rotating wheel 3033, and the spiral wheel 3032 can drive the saw cylinder 3061 to rotate relative to the rope 3062.

[0049] When it is necessary to use the highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention to perform drilling sampling, first, a corresponding number of cooling holes are drilled on the periphery of the sampling target area according to the number of support rods 3031, and the depth of the cooling holes is deeper than the sampling depth, and then a coolant, such as cooling water, is injected into the cooling holes. Then, the drilling frame 100 is moved to align the sampling mechanism 300 with the sampling target area, and the lower end of the support rod 3031 is extended to the corresponding cooling hole. The telescopic drive member 200 drives the telescopic drill rod 210 to extend vertically so that the rope saw 306 abuts against the surface of the sampling target area.

[0050] When core sampling, the rotating drive member 307 drives the rotating cylinder 305 to rotate in the vertical direction relative to the fixed cylinder 301, and the driving teeth 3052 engage with the rope saw 306 to drive the rope saw 306 to rotate. At the same time, the telescopic drive member 200 drives the telescopic drill rod 210 to extend synchronously in the vertical direction to enable the rope saw 306 to move downward for sampling and cutting. During cutting, the rope saw 306 is limited between the spiral wheel 3032 and the rotating wheel 3033. The spiral wheel 3032 can drive the saw cylinder 3061 to rotate relative to the rope 3062, thereby changing the angle of the saw cylinder 3061 relative to the rope 3062, thereby achieving uniform recycling of the cutting tools on the surface of the saw cylinder 3061, and avoiding the temperature increase or damage of some cutting tools on the surface of the saw cylinder 3061 due to long-term use, which affects the cutting efficiency.

[0051] In this embodiment, when the driving teeth 3052 mesh with the rope saw 306 to drive the rope saw 306 to rotate, the diameter of the rope saw 306 is larger than the diameter of the rotating cylinder 305. The rotating driving member 307 drives the rotating cylinder 305 to rotate relative to the fixed cylinder 301 in the vertical direction, and the driving teeth 3052 mesh with the rope saw 306 to drive the rope saw 306 to rotate. At the same time, the telescopic driving member 200 drives the telescopic drill rod 210 to extend vertically synchronously to move the rope saw 306 downward for sampling and cutting. During cutting, since the diameter of the rope saw 306 is larger than the diameter of the rotating cylinder 305, the outer wall of the rotating cylinder 305 and the inner wall of the sampling hole are matched with each other in clearance, so as to prevent the rotating cylinder 305 from rotating relative to the inner wall of the sampling hole and causing friction and heat damage to the rotating cylinder 305.

[0052] The highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention is specifically, as follows Figure 3 and Figure 6 As shown, a driving gear is installed on the driving shaft of the rotating driving member 307, and a driving rack 3051 is circumferentially provided on the inner side wall of the rotating cylinder 305, and the driving gear is meshed with the driving rack 3051. When it is necessary to use the highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention for drilling sampling, firstly, a corresponding number of cooling holes are drilled on the periphery of the sampling target area according to the number of support rods 3031, and the depth of the cooling holes is deeper than the sampling depth, and then a coolant, such as cooling water, is injected into the cooling holes, and then the drilling frame 100 is moved to align the sampling mechanism 300 with the sampling target area, and the lower end of the support rod 3031 is extended to the corresponding cooling hole, and the telescopic driving member 200 drives the telescopic drill rod 210 to extend vertically so that the rope saw 306 abuts against the surface of the sampling target area.

[0053] When drilling core samples, the rotating driving member 307 drives the driving gear to rotate, and the driving gear drives the driving rack 3051 to rotate, thereby driving the rotating cylinder 305 to rotate relative to the fixed cylinder 301 in a vertical direction, and the driving teeth 3052 are engaged with the rope saw 306 to drive the rope saw 306 to rotate. At the same time, the telescopic driving member 200 drives the telescopic drill rod 210 to extend synchronously in the vertical direction to enable the rope saw 306 to move downward for sampling and cutting. When cutting, since the diameter of the rope saw 306 is larger than the diameter of the rotating cylinder 305, the outer wall of the rotating cylinder 305 and the inner wall of the sampling hole are clearance-matched to prevent the rotating cylinder 305 from rotating relative to the inner wall of the sampling hole to generate friction and heat to damage the rotating cylinder 305.

[0054] In this embodiment, the rotary drive member 307 is a drive motor, a drive gear is installed on the drive shaft of the drive motor, a drive rack 3051 is circumferentially provided on the inner side wall of the rotating cylinder 305, and the drive gear is meshed with the drive rack 3051. A plurality of running wheels 110 are installed on the lower side of the drilling frame 100. A handrail 120 is installed on the drilling frame 100, and the drilling frame 100 can be driven to move through the running wheels 110 through the handrail 120. A handle 130 is provided on the upper side of the drilling frame 100, and the drilling frame 100 can be lifted up through the handle 130.

[0055] When it is necessary to use the highway engineering quality inspection drilling sampling device provided by the embodiment of the present invention to perform drilling sampling, first, a corresponding number of cooling holes are drilled on the periphery of the sampling target area according to the number of support rods 3031, and the depth of the cooling holes is deeper than the sampling depth, and then a coolant, such as cooling water, is injected into the cooling holes. Then, the drilling frame 100 is driven to move through the walking wheels 110 through the handrail 120, and the drilling frame 100 can also be lifted by the handle 130. The drilling frame 100 is moved to align the sampling mechanism 300 with the sampling target area, and the lower end of the support rod 3031 is extended to the corresponding cooling hole, and the hydraulic cylinder of the telescopic drive member 200 drives the telescopic drill rod 210 to extend vertically so that the rope saw 306 abuts against the surface of the sampling target area.

[0056] Afterwards, the rotating driving member 307 drives the driving gear to rotate, and the driving gear drives the driving rack 3051 to rotate, thereby driving the rotating cylinder 305 to rotate in the vertical direction relative to the fixed cylinder 301, and the driving teeth 3052 engage with the rope saw 306 to drive the rope saw 306 to rotate. At the same time, the telescopic driving member 200 drives the telescopic drill rod 210 to extend synchronously along the vertical direction to enable the rope saw 306 to move downward for sampling and cutting. During cutting, the rope saw 306 bypassing the limiting portion will be cooled by the coolant in the cooling hole, thereby cooling the rope saw 306 and transferring the grinding chips to the cooling hole. The grinding chips can be prevented from splashing due to the action of the coolant.

[0057] When the sampling depth is reached, the sample core is shaken to break the gap between the sample core and the foundation, and the rotary drive member 307 stops driving. Figure 4 As shown, the telescopic end of the hydraulic cylinder of the vertical driving member 302 extends to drive the support rod 3031 to slide vertically downward along the guide seat 304, and the rope saw 306 is straightened after being separated from the driving teeth 3052 to lift the sample core from the bottom of the sample core, and finally the telescopic driving member 200 drives the telescopic drill rod 210 to contract vertically so that the rope saw 306 can take out the sample core. When coring is completed, the drilling frame 100 is driven to move through the walking wheel 110 through the handrail 120, and the drilling frame 100 can also be lifted by the handle 130 to move the drilling frame 100 to another area for sampling.

[0058] The highway engineering quality inspection drilling and sampling device provided by the embodiment of the present invention can cool down the drilling tool in time when the drill bit is drilling and sampling, while avoiding splashing and turbulence of the abrasive mixture, and can facilitate the removal of the sample core; the spiral wheel 3032 can drive the saw barrel 3061 to rotate relative to the rope 3062, change the angle of the saw barrel 3061 relative to the rope 3062, thereby realizing the uniform circulation of the cutting tools on the surface of the saw barrel 3061, and avoiding the long-term use of some cutting tools on the surface of the saw barrel 3061, resulting in temperature increase or damage affecting the cutting efficiency; because the diameter of the rope saw 306 is larger than the diameter of the rotating cylinder 305, the outer wall of the rotating cylinder 305 and the inner wall of the sampling hole are clearance-matched, avoiding the friction generated by the rotating cylinder 305 relative to the inner wall of the sampling hole to damage the rotating cylinder 305.

[0059] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A drilling sampling device for highway engineering quality inspection, characterized in that: The highway engineering quality inspection drilling sampling device comprises: A drilling frame (100), wherein a telescopic driving member (200) and a telescopic drill rod (210) are mounted on the drilling frame (100), wherein the telescopic driving member (200) is used to drive the telescopic drill rod (210) to extend and retract vertically; and A sampling mechanism (300), the sampling mechanism (300) comprising a fixed cylinder (301), a rotating cylinder (305) and a rope saw (306), the upper end of the fixed cylinder (301) being mounted on the lower end of the telescopic drill rod (210), the upper end of the rotating cylinder (305) being nested inside the lower end of the fixed cylinder (301), a rotating drive member (307) being mounted inside the fixed cylinder (301), the rotating drive member (307) being capable of driving the rotating cylinder (305) to rotate in a vertical direction relative to the fixed cylinder (301), the lower end of the rotating cylinder (305) being circumferentially provided with driving teeth (3052), the driving teeth (3052) being capable of meshing with the rope saw (306) to drive the rope saw (306) to rotate; A vertical driving member (302) and a plurality of guide seats (304) are installed on the outer wall of the fixed cylinder (301), a support rod (3031) is vertically slidably installed in each of the guide seats (304), the plurality of guide seats (304) are arranged at intervals along the circumference of the fixed cylinder (301), the upper ends of the support rods (3031) are connected via abutment rings (303), the telescopic end of the vertical driving member (302) is connected to the abutment ring (303), the telescopic end of the vertical driving member (302) can drive the abutment ring (303) to drive the support rod (3031) to slide vertically along the guide seat (304), a limiting portion is provided at the lower end of the support rod (3031), the rope saw (306) bypasses the limiting portion, and the rope saw (306) can move relative to the limiting portion along the length direction of the rope saw (306); The rope saw (306) comprises a rope (3062), a plurality of saw cylinders (3061) are sleeved on the rope (3062), the plurality of saw cylinders (3061) are arranged at intervals along the length direction of the rope (3062), and the saw cylinders (3061) are capable of rotating relative to the rope (3062); The limiting portion comprises a spiral wheel (3032) and a rotating wheel (3033) which are horizontally rotatably mounted on the support rod (3031); the spiral wheel (3032) and the rotating wheel (3033) are arranged at an interval; the rope saw (306) is limited between the spiral wheel (3032) and the rotating wheel (3033); and the spiral wheel (3032) can drive the saw cylinder (3061) to rotate relative to the rope (3062).

2. The highway engineering quality inspection drilling sampling device according to claim 1 is characterized in that: When the driving teeth (3052) mesh with the rope saw (306) to drive the rope saw (306) to rotate, the diameter of the rope saw (306) is greater than the diameter of the rotating cylinder (305).

3. The highway engineering quality inspection drilling sampling device according to claim 1 is characterized in that: A driving gear is mounted on the driving shaft of the rotating driving member (307), and a driving rack (3051) is provided on the inner side wall of the rotating cylinder (305) along the circumferential direction, and the driving gear is meshed with the driving rack (3051).

4. The highway engineering quality inspection drilling sampling device according to claim 1 is characterized in that: A plurality of travel wheels (110) are installed on the lower side of the drilling machine frame (100).

5. The highway engineering quality inspection drilling sampling device according to claim 4 is characterized in that: A handrail (120) is installed on the drilling frame (100), and the drilling frame (100) can be driven to move via the walking wheels (110) through the handrail (120).

6. The highway engineering quality inspection drilling sampling device according to claim 4 is characterized in that: A handle (130) is provided on the upper side of the drilling frame (100), and the drilling frame (100) can be lifted by the handle (130).

7. The highway engineering quality inspection drilling sampling device according to claim 1 is characterized in that: The guide seat (304) is mounted on the outer wall of the fixing cylinder (301) by means of bolts.

8. The highway engineering quality inspection drilling sampling device according to claim 1 is characterized in that: The rotating driving member (307) is a driving motor.

9. The highway engineering quality inspection drilling sampling device according to claim 1 is characterized in that: The telescopic driving member (200) and the vertical driving member (302) are both hydraulic cylinders.

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