Surveying and mapping geographic information sampling device for road construction

Abstract

The invention discloses a surveying and mapping geographic information sampling device for road construction, and belongs to the technical field of geographic sampling, the surveying and mapping geographic information sampling device comprises a soil sampling mechanism for sampling road soil to be constructed, and the soil sampling mechanism is provided with a recording mechanism for recording geographic information of walking of the device and a steering mechanism for recording steering information of the device; the recording mechanism measures the real walking distance through a recording wheel tightly attached to the ground, measurement errors caused by slipping of a traditional walking wheel are effectively avoided, the steering mechanism converts the steering angle into an electric signal through linkage of rotation of a steering wheel and displacement of a sliding block, and the electric signal is recorded; the precise coordinates of the device on the construction path can be calculated by combining the two; according to the soil sampling mechanism, a sampling motor drives a sampling barrel to achieve spiral downward composite motion, a hollow drill bit can stably cut into a soil layer with low disturbance, and an inner spiral groove in the hollow drill bit can continuously convey soil upwards into the sampling barrel when the drill bit rotates.

Description

Technical Field

[0001] This invention relates to the field of geographic sampling technology, and in particular to a surveying and geographic information sampling device for road construction. Background Technology

[0002] In the field of road construction, preliminary geological surveys and soil sampling are crucial steps in ensuring the quality of engineering design and construction. Traditional soil sampling often relies on manual labor or simple mechanical devices, which suffers from problems such as inconsistent sampling depth, susceptibility to interference during the sampling process, and inaccurate recording of geographic information at sampling points. Especially in long-distance, multi-point road construction surveying, existing equipment often struggles to simultaneously achieve accurate positioning, continuous sampling, and automatic recording of geographic information, resulting in unclear correspondence between sampling data and geographical locations, which affects subsequent soil analysis and construction decisions.

[0003] Currently, most common soil sampling devices use a single rotary drilling or direct pressing method, which can easily damage the soil structure during sampling. Soil is also prone to falling off when the sampling tube is lifted, affecting the integrity of the sample. In addition, existing devices lack an integrated walking and turning recording mechanism, making it difficult to automatically record the location information of the sampling point during movement. This makes it impossible to achieve accurate backtracking of the sampling path and real-time collection of geographic information. Although some devices are equipped with positioning modules, their positioning accuracy and reliability are insufficient due to factors such as signal obstruction and equipment slippage, especially with larger errors in complex terrain. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a dedicated device that integrates soil sampling and automatic geographic information recording functions, automating the sampling process, ensuring accurate location recording, and guaranteeing the integrity and representativeness of the sampled soil. This provides reliable geographic information and soil data support for road construction. The technical solution adopted by this invention is as follows: a surveying and geographic information sampling device for road construction, comprising a soil sampling mechanism for sampling the soil of the road to be constructed and a vehicle body. Two lower supports are fixedly installed on the vehicle body. The soil sampling mechanism is equipped with a recording mechanism for recording geographic information of the device's movement and a steering mechanism for recording the device's turning information. The soil sampling mechanism includes a lower ring, two lower extension frames are fixedly installed on the vehicle body, two lower side columns are fixedly installed on the lower ring, the lower side columns are fixedly installed with the lower extension frames, a sampling cylinder is provided inside the lower ring, a hollow drill bit is fixedly installed at the bottom of the sampling cylinder, an inner column is provided inside the sampling cylinder, and an inner spiral groove is provided at the bottom of the sampling cylinder.

[0005] Furthermore, the soil sampling mechanism also includes a fixed ring rotatably mounted on the sampling cylinder, two side guide posts fixedly mounted on the side of the fixed ring, a rotating connecting plate fixedly mounted on the sampling cylinder, a driven rotating block fixedly mounted on the rotating connecting plate, a sampling frame fixedly mounted on the lower support, a sampling motor fixedly mounted on the sampling frame, an active rotating block fixedly mounted on the motor shaft of the sampling motor, a motor bevel gear fixedly mounted on the active rotating block, and the active rotating block drives the driven rotating block to rotate through multiple universal joints.

[0006] Furthermore, the soil sampling mechanism also includes a large side gear rotatably mounted on the sampling frame, an eccentric column eccentrically mounted on the large side gear, an outer long rod rotatably mounted on the sampling frame, a long rod groove provided on the outer long rod, the eccentric column sliding in the long rod groove, an inner long rod fixedly mounted on the outer long rod, an inner groove provided on the inner long rod, the side guide column sliding in the inner groove.

[0007] The sampling motor drives the active rotating block and the motor bevel gear to rotate. The active rotating block drives the driven rotating block and the rotating connecting plate to rotate through multiple universal joints. The rotating connecting plate drives the sampling cylinder and the hollow drill bit to rotate. The motor bevel gear drives the side bevel gear and the side pinion to rotate. The side pinion drives the side large gear to rotate. The side large gear drives the outer long rod to rotate relative to the sampling frame through the sliding of the eccentric column in the long rod groove. The outer long rod drives the inner long rod to rotate. The inner long rod drives the fixed ring, the rotating connecting plate, the sampling cylinder and the hollow drill bit to move downward through the sliding of the side guide column in the inner groove. With the descent of the sampling cylinder in the lower ring and the rotation of the sampling cylinder relative to the lower ring, the sampling cylinder and the hollow drill bit rotate downward simultaneously.

[0008] After the hollow drill bit drills into the soil, the soil in the hollow part of the drill bit is transported upward by the rotating inner spiral groove and finally transported into the sampling tube to achieve soil sampling. Then, the sampling motor rotates in the opposite direction, driving the sampling tube and the hollow drill bit to rotate in the opposite direction and rise. At this time, the soil in the sampling tube will rise with the sampling tube and the hollow drill bit without falling out. When the sampling tube rises to the highest point, the sampling tube is removed and a new sampling tube is replaced on the rotating connecting plate to complete the soil sampling.

[0009] That is, when the sampling tube moves downward in a spiral motion, soil is sampled; when the sampling tube moves upward, the soil remains in the sampling tube. It is also possible to sample soil from multiple locations using a single sampling tube.

[0010] Furthermore, the recording mechanism includes an inner grooved wheel rotatably mounted on a lower bracket, with multiple triangular notches evenly arranged around its circumference; an inner fixing block is fixedly mounted on the lower bracket; an inner push rod is slidably mounted on the inner fixing block; a locking triangular block is fixedly mounted on the inner push rod; a return spring is provided between the locking triangular block and the inner fixing block; and a recording switch is fixedly mounted on the lower bracket.

[0011] Furthermore, the recording mechanism also includes a fitting rotating rod rotatably mounted on the lower support, a spiral spring is provided between the fitting rotating rod and the lower support, an outer detection wheel is fixedly mounted on the inner groove wheel, the outer detection wheel is rotatably mounted on the fitting rotating rod, a detection shaft is rotatably mounted on the fitting rotating rod, a lower transmission wheel and two recording wheels are fixedly mounted on the detection shaft, and a detection transmission belt is wound around the lower transmission wheel and the outer detection wheel.

[0012] The internal motor drives the motor gear to rotate, which in turn drives the mating gear and the transmission wheel to rotate. The transmission wheel drives the internal transmission wheel and the walking wheel to rotate via the transmission belt, thus enabling the device to move. When the device moves, the spiral spring causes the contact rod to rotate downward, making the recording wheel stick to the ground. This movement of the recording wheel during the device's movement will also cause the recording wheel to rotate.

[0013] The rotation of the recording wheel and the lower drive wheel drives the outer detection wheel and the inner grooved wheel to rotate via the detection drive belt. When the inner grooved wheel rotates, the locking triangular block slides out of the triangular notch of the inner grooved wheel. At this time, the return spring is compressed, which drives the inner push rod to move towards the recording switch. When the inner push rod contacts the recording switch, the recording switch records the travel distance. When the triangular notch of the inner grooved wheel moves to the locking triangular block, the return spring rebounds, and the locking triangular block inserts into the triangular notch of the inner grooved wheel. At this time, the inner push rod disengages from the recording switch. As the inner grooved wheel continues to rotate, the inner push rod will continuously contact the recording switch, and the travel distance of the device will be recorded by the recording switch.

[0014] Since the rotation of the recording wheel necessarily indicates that the device is moving, while the rotation of the walking wheel does not necessarily indicate that the device is moving, as the device may be slipping, recording the walking distance by the rotation of the recording wheel is more reliable.

[0015] Furthermore, the steering mechanism includes a fixed sleeve fixedly installed inside the vehicle body, a rotating frame rotatably installed on the fixed sleeve, a rotating column fixedly installed on the rotating frame, a double-groove sleeve rotatably installed inside the vehicle body, the double-groove sleeve having two long grooves, a recording track fixedly installed inside the vehicle body, a recording slider slidably installed on the recording track, a sliding column fixedly installed on the recording slider, the rotating column and the sliding column sliding in the two long grooves of the double-groove sleeve respectively, and position sensors being provided inside the recording slider and the recording track.

[0016] Furthermore, the steering mechanism also includes a rotating cylinder fixedly installed inside a rotating frame, a steering frame fixedly installed on the vehicle body, a steering wheel rotatably installed on the steering frame, the steering wheel drives the rotating cylinder to rotate via a universal joint, a lifting column slidably installed inside the rotating cylinder, an internal spring provided between the lifting column and the rotating cylinder, two lower sliders slidably installed below the rotating frame, a lower rotating rod rotatably installed on the lower sliders, a wheel frame fixedly installed on the lifting column, the wheel frame rotatably installed with the lower rotating rod, and a steering wheel rotatably installed on the wheel frame.

[0017] When in use, turning the steering wheel drives the rotating cylinder and rotating frame to rotate via the universal joint. The rotation of the rotating cylinder drives the lifting column, wheel frame, and steering wheels to rotate, thus achieving steering. At the same time, the rotation of the rotating frame drives the double-groove sleeve to rotate through the sliding of the rotating column in the groove of the double-groove sleeve. The double-groove sleeve drives the recording slider to slide along the recording track through the sliding of the sliding column in the groove of the double-groove sleeve. The steering angle is calculated by the sensors in the recording slider and the recording track. Combined with the travel distance recorded by the recording switch, the position information of the device is obtained.

[0018] The inner spring keeps the lifting column, wheel frame, and steering wheel firmly pressed against the ground, while also providing some shock absorption. When encountering bumpy roads, the wheel frame and lifting column rise and fall, further compressing the inner spring. The wheel frame drives the lower slider to slide along the rotating frame via the lower rotating rod.

[0019] Furthermore, the soil sampling mechanism also includes a side pinion rotatably mounted on the sampling frame, a side bevel gear fixedly mounted on the side pinion, the side bevel gear meshing with the motor bevel gear, and the side pinion meshing with the side large gear.

[0020] Furthermore, the recording mechanism also includes a traveling wheel rotatably mounted on the lower support, an inner transmission wheel fixedly mounted on the traveling wheel, an inner motor fixedly mounted inside the vehicle body, a motor gear fixedly mounted on the motor shaft of the inner motor, a transmission wheel rotatably mounted inside the vehicle body, a mating gear fixedly mounted on the transmission wheel, the motor gear meshing with the mating gear, and a transmission belt wrapped around the transmission wheel and the inner transmission wheel.

[0021] The beneficial effects of this invention compared with the prior art are: (1) This device can automatically and accurately record the geographical location of the sampling point through the recording mechanism and the steering mechanism. The recording mechanism uses the recording wheel that is close to the ground to measure the actual walking distance, which effectively avoids the measurement error caused by the slippage of the traditional walking wheel. The steering mechanism converts the steering angle into an electrical signal and records it through the linkage of the steering wheel rotation and the slider displacement. The combination of the two can calculate the accurate coordinates of the device on the construction path in real time, which improves the accuracy and reliability of the survey data; (2) The soil sampling mechanism set in this invention drives the sampling cylinder to rotate and feed simultaneously through a sampling motor, realizing a spiral downward composite motion, so that the hollow drill bit can smoothly and with low disturbance cut into the soil layer, and the inner The inner spiral groove of the part can continuously transport the soil upward to the inside of the sampling tube when the drill bit rotates, forming a continuous and complete columnar sample. During the lifting process, as the sampling tube rotates in the opposite direction and rises, the soil is firmly held in the tube under the action of centrifugal force and friction, which effectively prevents the sample from falling off or getting mixed during the lifting process, ensuring the original state and integrity of the sample, and providing high-quality samples for accurate geotechnical tests; (3) The inner spring and sliding connection of the lower slider and wheel frame in the steering mechanism of the present invention can effectively reduce shock. When encountering uneven bumpy road surfaces, the system can buffer the ground impact and allow the steering wheel to adaptively adjust the height according to the terrain undulations, which enhances the passability of the device in uneven construction environments in the field. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the soil extraction mechanism of the present invention. Figure 1 .

[0024] Figure 3 This is a schematic diagram of the internal structure of the sampling cylinder of the present invention.

[0025] Figure 4 This is a schematic diagram of the soil extraction mechanism of the present invention. Figure 2 .

[0026] Figure 5 This is a schematic diagram of the recording mechanism structure of the present invention. Figure 1 .

[0027] Figure 6 This is a schematic diagram of the recording mechanism structure of the present invention. Figure 2 .

[0028] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0029] Figure 8 This is a schematic diagram of the steering mechanism structure of the present invention. Figure 1 .

[0030] Figure 9 This is a schematic diagram of the steering mechanism structure of the present invention. Figure 2 .

[0031] Figure 10 This is a schematic diagram of the steering mechanism structure of the present invention. Figure 3 .

[0032] Reference numerals: 101-Car body; 102-Lower support; 103-Sampling frame; 104-Sampling motor; 105-Motor bevel gear; 106-Driving rotating block; 107-Side bevel gear; 108-Side pinion; 109-Side gear; 110-Eccentric column; 111-Outer long rod; 112-Long rod groove; 113-Inner long rod; 114-Inner groove; 115-Driven rotating block; 116-Sampling cylinder; 117-Hollow drill bit; 118-Inner column; 119-Fixing ring; 120-Side guide column; 121-Inner spiral groove; 122-Lower ring; 123-Lower side column; 124-Lower extension frame; 125-Rotating connecting plate; 201-Inner motor; 202-Motor gear; 203-Matching gear; 204-Transmission wheel; 205-Transmission belt; 206-Coiled spring; 207-Outer detection wheel; 208-Fitting rotating rod; 209-Detection transmission belt; 210-Lower transmission wheel; 211-Detection shaft; 212-Recording wheel; 213-Traveling wheel; 214-Inner transmission wheel; 215-Inner grooved wheel; 216-Inner fixing block; 217-Inner push rod; 218-Clamping triangular block; 219-Return spring; 220-Recording switch; 301-Steering frame; 302-Steering wheel; 303-Rotating cylinder; 304-Rotating frame; 305-Rotating column; 306-Double groove sleeve; 307-Sliding column; 308-Recording slider; 309-Recording track; 310-Lifting column; 311-Inner spring; 312-Lower slider; 313-Lower rotating rod; 314-Wheel frame; 315-Steering wheel; 316-Fixed sleeve. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0034] Example: Reference Figures 1-10 A road construction mapping geographic information sampling device includes a soil sampling mechanism for sampling the soil of the road to be constructed and a vehicle body 101. Two lower supports 102 are fixedly installed on the vehicle body 101. The soil sampling mechanism is provided with a recording mechanism for recording geographic information of the device's movement and a steering mechanism for recording the device's turning information. The soil sampling mechanism includes a lower ring 122, two lower extension frames 124 are fixedly installed on the vehicle body 101, two lower side columns 123 are fixedly installed on the lower ring 122, the lower side columns 123 are fixedly installed with the lower extension frames 124, a sampling cylinder 116 is provided inside the lower ring 122, a hollow drill bit 117 is fixedly installed at the bottom of the sampling cylinder 116, an inner column 118 is provided inside the sampling cylinder 116, and an inner spiral groove 121 is provided at the bottom of the sampling cylinder 116.

[0035] like Figures 2-4 As shown, the soil sampling mechanism also includes a fixed ring 119 rotatably mounted on the sampling cylinder 116. Two side guide posts 120 are fixedly mounted on the side of the fixed ring 119. A rotating connecting plate 125 is fixedly mounted on the sampling cylinder 116. A driven rotating block 115 is fixedly mounted on the rotating connecting plate 125. A sampling frame 103 is fixedly mounted on the lower support 102. A sampling motor 104 is fixedly mounted on the sampling frame 103. An active rotating block 106 is fixedly mounted on the motor shaft of the sampling motor 104. A motor bevel gear 105 is fixedly mounted on the active rotating block 106. The active rotating block 106 drives the driven rotating block 115 to rotate through multiple universal joints.

[0036] like Figures 2-4 As shown, the soil sampling mechanism also includes a side gear 109 rotatably mounted on the sampling frame 103. An eccentric column 110 is eccentrically mounted on the side gear 109. An outer long rod 111 is rotatably mounted on the sampling frame 103. A long rod groove 112 is provided on the outer long rod 111. The eccentric column 110 slides in the long rod groove 112. An inner long rod 113 is fixedly mounted on the outer long rod 111. An inner groove 114 is provided on the inner long rod 113. The side guide column 120 slides in the inner groove 114.

[0037] Sampling motor 104 drives active rotating block 106 and motor bevel gear 105 to rotate. Active rotating block 106 drives driven rotating block 115 and rotating connecting disk 125 to rotate through multiple universal joints. Rotating connecting disk 125 drives sampling cylinder 116 and hollow drill bit 117 to rotate. Motor bevel gear 105 drives side bevel gear 107 and side pinion 108 to rotate. Side pinion 108 drives side large gear 109 to rotate. Side large gear 109 slides in long rod groove 112 through eccentric column 110. The outer long rod 111 rotates relative to the sampling frame 103, and the outer long rod 111 drives the inner long rod 113 to rotate. The inner long rod 113 slides in the inner slide groove 114 through the side guide post 120, which drives the fixed ring 119, rotating connecting plate 125, sampling cylinder 116 and hollow drill bit 117 to move downward. In conjunction with the descent of the sampling cylinder 116 in the lower ring 122 and the rotation of the sampling cylinder 116 relative to the lower ring 122, the sampling cylinder 116 and the hollow drill bit 117 rotate downward simultaneously.

[0038] After the hollow drill bit 117 drills into the soil, the soil in the hollow part of the hollow drill bit 117 is transported upward by the rotating inner spiral groove 121 and finally transported into the sampling cylinder 116. The inner column 118 supports the sampling cylinder 116 to prevent deformation and achieve soil sampling. Then, the sampling motor 104 rotates in the opposite direction, driving the sampling cylinder 116 and the hollow drill bit 117 to rotate in the opposite direction and rise. At this time, the soil in the sampling cylinder 116 will rise with the sampling cylinder 116 and the hollow drill bit 117 without falling out. When the sampling cylinder 116 rises to the highest point, the sampling cylinder 116 is removed and a new sampling cylinder 116 is replaced on the rotating connecting plate 125 to complete the soil sampling.

[0039] That is, when the sampling tube 116 moves downward spirally, soil is sampled; when the sampling tube 116 moves upward, the soil remains in the sampling tube 116. Soil samples can also be taken from multiple locations through one sampling tube 116.

[0040] like Figures 5-7 As shown, the recording mechanism includes an inner grooved wheel 215 rotatably mounted on the lower bracket 102. The inner grooved wheel 215 has multiple triangular notches evenly arranged around its circumference. An inner fixing block 216 is fixedly mounted on the lower bracket 102. An inner push rod 217 is slidably mounted on the inner fixing block 216. A locking triangular block 218 is fixedly mounted on the inner push rod 217. A return spring 219 is provided between the locking triangular block 218 and the inner fixing block 216. A recording switch 220 is fixedly mounted on the lower bracket 102.

[0041] like Figures 5-7 As shown, the recording mechanism also includes a contacting rotating rod 208 rotatably mounted on the lower bracket 102. A spiral spring 206 is provided between the contacting rotating rod 208 and the lower bracket 102. An outer detection wheel 207 is fixedly mounted on the inner groove wheel 215. The outer detection wheel 207 is rotatably mounted on the contacting rotating rod 208. A detection shaft 211 is rotatably mounted on the contacting rotating rod 208. A lower transmission wheel 210 and two recording wheels 212 are fixedly mounted on the detection shaft 211. A detection transmission belt 209 is wound around the lower transmission wheel 210 and the outer detection wheel 207.

[0042] The internal motor 201 drives the motor gear 202 to rotate, which in turn drives the mating gear 203 and the transmission wheel 204 to rotate. The transmission wheel 204 drives the internal transmission wheel 214 and the walking wheel 213 to rotate via the transmission belt 205, thus enabling the device to move. When the device moves, the spiral spring 206 causes the contact rod 208 to rotate downward, making the recording wheel 212 close to the ground. When the device moves, it will drive the recording wheel 212 to rotate.

[0043] The rotation of the recording wheel 212 and the lower transmission wheel 210 drives the outer detection wheel 207 and the inner groove wheel 215 to rotate via the detection transmission belt 209. When the inner groove wheel 215 rotates, the locking triangular block 218 slides out of the triangular notch of the inner groove wheel 215. At this time, the return spring 219 is compressed, which drives the inner push rod 217 to move towards the recording switch 220. When the inner push rod 217 contacts the recording switch 220, the recording switch 220 records the travel distance. When the triangular notch of the inner groove wheel 215 moves to the locking triangular block 218, the return spring 219 rebounds, and the locking triangular block 218 inserts into the triangular notch of the inner groove wheel 215. At this time, the inner push rod 217 disengages from the recording switch 220. As the inner groove wheel 215 continues to rotate, the inner push rod 217 will continuously contact the recording switch 220, and the travel distance of the device will be recorded by the recording switch 220.

[0044] Since the rotation of the recording wheel 212 necessarily indicates that the device is moving, while the rotation of the walking wheel 213 does not necessarily indicate that the device is moving, as the device may be slipping, it is more reliable to record the walking distance by the rotation of the recording wheel 212.

[0045] like Figures 8-10 As shown, the steering mechanism includes a fixed sleeve 316 fixedly installed inside the vehicle body 101, a rotating frame 304 rotatably mounted on the fixed sleeve 316, a rotating column 305 fixedly mounted on the rotating frame 304, a double-groove sleeve 306 rotatably mounted inside the vehicle body 101, the double-groove sleeve 306 having two long grooves, a recording track 309 fixedly mounted inside the vehicle body 101, a recording slider 308 slidably mounted on the recording track 309, a sliding column 307 fixedly mounted on the recording slider 308, the rotating column 305 and the sliding column 307 sliding in the two long grooves of the double-groove sleeve 306 respectively, and position sensors are provided inside the recording slider 308 and the recording track 309.

[0046] like Figures 8-10 As shown, the steering mechanism also includes a rotating cylinder 303 fixedly installed in the rotating frame 304. A steering frame 301 is fixedly installed on the vehicle body 101. A steering wheel 302 is rotatably installed on the steering frame 301. The steering wheel 302 drives the rotating cylinder 303 to rotate through a universal joint. A lifting column 310 is slidably installed inside the rotating cylinder 303. An inner spring 311 is provided between the lifting column 310 and the rotating cylinder 303. Two lower sliders 312 are slidably installed below the rotating frame 304. A lower rotating rod 313 is rotatably installed on the lower sliders 312. A wheel frame 314 is fixedly installed on the lifting column 310. The wheel frame 314 is rotatably installed with the lower rotating rod 313. A steering wheel 315 is rotatably installed on the wheel frame 314.

[0047] When in use, turning the steering wheel 302 drives the rotating cylinder 303 and the rotating frame 304 to rotate via the universal joint. The rotation of the rotating cylinder 303 drives the lifting column 310, the wheel frame 314, and the steering wheel 315 to rotate, thus achieving steering. At the same time, the rotation of the rotating frame 304 drives the double groove sleeve 306 to rotate through the sliding of the rotating column 305 in the groove of the double groove sleeve 306. The double groove sleeve 306 drives the recording slider 308 to slide along the recording track 309 through the sliding of the sliding column 307 in the groove of the double groove sleeve 306. The steering angle is calculated by the sensors in the recording slider 308 and the recording track 309. Combined with the travel distance recorded by the recording switch 220, the position information of the device is obtained.

[0048] The inner spring 311 keeps the lifting column 310, wheel frame 314 and steering wheel 315 close to the ground, and also has a certain shock absorption function. When encountering bumpy roads, the wheel frame 314 and lifting column 310 rise and fall, which further compresses the inner spring 311. The wheel frame 314 drives the lower slider 312 to slide along the rotating frame 304 through the lower rotating rod 313.

[0049] like Figures 2-4 As shown, the soil sampling mechanism also includes a side pinion 108 rotatably mounted on the sampling frame 103, a side bevel gear 107 fixedly mounted on the side pinion 108, the side bevel gear 107 meshing with the motor bevel gear 105, and the side pinion 108 meshing with the side gear 109.

[0050] like Figures 5-7 As shown, the recording mechanism also includes a traveling wheel 213 rotatably mounted on the lower support 102, an inner transmission wheel 214 fixedly mounted on the traveling wheel 213, an inner motor 201 fixedly mounted inside the vehicle body 101, a motor gear 202 fixedly mounted on the motor shaft of the inner motor 201, a transmission wheel 204 rotatably mounted inside the vehicle body 101, a mating gear 203 fixedly mounted on the transmission wheel 204, the motor gear 202 meshing with the mating gear 203, and a transmission belt 205 wrapped around the transmission wheel 204 and the inner transmission wheel 214.

[0051] Working principle: The internal motor 201 drives the motor gear 202 to rotate, which in turn drives the mating gear 203 and the transmission wheel 204 to rotate. The transmission wheel 204 drives the internal transmission wheel 214 and the walking wheel 213 to rotate via the transmission belt 205, thus enabling the device to move. When the device moves, the spiral spring 206 causes the contact rod 208 to rotate downward, making the recording wheel 212 close to the ground. When the device moves, it will drive the recording wheel 212 to rotate. The rotation of the recording wheel 212 and the lower transmission wheel 210 drives the outer detection wheel 207 and the inner groove wheel 215 to rotate via the detection transmission belt 209. When the inner groove wheel 215 rotates, the locking triangular block 218 slides out of the triangular notch of the inner groove wheel 215. At this time, the return spring 219 is compressed, which drives the inner push rod 217 to move towards the recording switch 220. When the inner push rod 217 contacts the recording switch 220, the recording switch 220 records the travel distance. When the triangular notch of the inner groove wheel 215 moves to the locking triangular block 218, the return spring 219 rebounds, and the locking triangular block 218 inserts into the triangular notch of the inner groove wheel 215. At this time, the inner push rod 217 disengages from the recording switch 220. As the inner groove wheel 215 continues to rotate, the inner push rod 217 will continuously contact the recording switch 220, and the travel distance of the device will be recorded by the recording switch 220.

[0052] When in use, turning the steering wheel 302 drives the rotating cylinder 303 and the rotating frame 304 to rotate via the universal joint. The rotation of the rotating cylinder 303 drives the lifting column 310, the wheel frame 314, and the steering wheel 315 to rotate, thus achieving steering. At the same time, the rotation of the rotating frame 304 drives the double groove sleeve 306 to rotate through the sliding of the rotating column 305 in the groove of the double groove sleeve 306. The double groove sleeve 306 drives the recording slider 308 to slide along the recording track 309 through the sliding of the sliding column 307 in the groove of the double groove sleeve 306. The steering angle is calculated by the sensors in the recording slider 308 and the recording track 309. Combined with the travel distance recorded by the recording switch 220, the position information of the device is obtained.

[0053] Soil samples are taken after each specific distance traveled to obtain soil samples from multiple locations. The sampling motor 104 drives the active rotating block 106 and the motor bevel gear 105 to rotate. The active rotating block 106 drives the driven rotating block 115 and the rotating connecting plate 125 to rotate via multiple universal joints. The rotating connecting plate 125 drives the sampling cylinder 116 and the hollow drill bit 117 to rotate. The motor bevel gear 105 drives the side bevel gear 107 and the side pinion 108 to rotate. The side pinion 108 drives the side large gear 109 to rotate. The side large gear 109 is connected to an eccentric column... The sliding of 110 in the long rod groove 112 causes the outer long rod 111 to rotate relative to the sampling frame 103. The outer long rod 111 causes the inner long rod 113 to rotate. The inner long rod 113 slides in the inner groove 114 through the side guide post 120, causing the fixed ring 119, rotating connecting plate 125, sampling cylinder 116 and hollow drill bit 117 to move downward. In conjunction with the descent of the sampling cylinder 116 in the lower ring 122 and the rotation of the sampling cylinder 116 relative to the lower ring 122, the sampling cylinder 116 and the hollow drill bit 117 rotate downward simultaneously.

[0054] After the hollow drill bit 117 drills into the soil, the soil in the hollow part of the hollow drill bit 117 is transported upward by the rotating inner spiral groove 121 and finally transported into the sampling cylinder 116 to achieve soil sampling. Then the sampling motor 104 rotates in the opposite direction, driving the sampling cylinder 116 and the hollow drill bit 117 to rotate in the opposite direction and rise. At this time, the soil in the sampling cylinder 116 will rise with the sampling cylinder 116 and the hollow drill bit 117 without falling out. When the sampling cylinder 116 rises to the highest point, the sampling cylinder 116 is removed and a new sampling cylinder 116 is replaced on the rotating connecting plate 125 to complete the soil sampling.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A surveying and geographic information sampling device for road construction, comprising a soil sampling mechanism and a vehicle body (101) for sampling soil from the road to be constructed, characterized in that: Two lower brackets (102) are fixedly installed on the vehicle body (101). The soil-collecting mechanism is equipped with a recording mechanism for recording geographical information of the device's movement and a steering mechanism for recording the device's turning information. The soil sampling mechanism includes a lower ring (122), two lower extension frames (124) are fixedly installed on the vehicle body (101), two lower side columns (123) are fixedly installed on the lower ring (122), the lower side columns (123) are fixedly installed with the lower extension frames (124), a sampling cylinder (116) is provided inside the lower ring (122), a hollow drill bit (117) is fixedly installed at the bottom of the sampling cylinder (116), an inner column (118) is provided inside the sampling cylinder (116), and an inner spiral groove (121) is provided at the bottom of the sampling cylinder (116).

2. The mapping and geographic information sampling device for road construction according to claim 1, characterized in that: The soil sampling mechanism also includes a fixed ring (119) rotatably mounted on the sampling cylinder (116). Two side guide columns (120) are fixedly mounted on the side of the fixed ring (119). A rotating connecting plate (125) is fixedly mounted on the sampling cylinder (116). A driven rotating block (115) is fixedly mounted on the rotating connecting plate (125). A sampling frame (103) is fixedly mounted on the lower support (102). A sampling motor (104) is fixedly mounted on the sampling frame (103). An active rotating block (106) is fixedly mounted on the motor shaft of the sampling motor (104). A motor bevel gear (105) is fixedly mounted on the active rotating block (106). The active rotating block (106) drives the driven rotating block (115) to rotate through multiple universal joints.

3. The mapping and geographic information sampling device for road construction according to claim 2, characterized in that: The soil sampling mechanism also includes a side gear (109) rotatably mounted on the sampling frame (103), an eccentric column (110) eccentrically mounted on the side gear (109), an outer long rod (111) rotatably mounted on the sampling frame (103), a long rod groove (112) provided on the outer long rod (111), the eccentric column (110) sliding in the long rod groove (112), an inner long rod (113) fixedly mounted on the outer long rod (111), an inner groove (114) provided on the inner long rod (113), and a side guide column (120) sliding in the inner groove (114).

4. The surveying and geographic information sampling device for road construction according to claim 1, characterized in that: The recording mechanism includes an inner grooved wheel (215) rotatably mounted on a lower bracket (102). The inner grooved wheel (215) has multiple triangular notches evenly arranged around its circumference. An inner fixing block (216) is fixedly mounted on the lower bracket (102). An inner push rod (217) is slidably mounted on the inner fixing block (216). A locking triangular block (218) is fixedly mounted on the inner push rod (217). A return spring (219) is provided between the locking triangular block (218) and the inner fixing block (216). A recording switch (220) is fixedly mounted on the lower bracket (102).

5. A road construction surveying and geographic information sampling device according to claim 4, characterized in that: The recording mechanism also includes a fitting rotating rod (208) rotatably mounted on the lower bracket (102), a spiral spring (206) is provided between the fitting rotating rod (208) and the lower bracket (102), an outer detection wheel (207) is fixedly mounted on the inner groove wheel (215), the outer detection wheel (207) is rotatably mounted on the fitting rotating rod (208), a detection shaft (211) is rotatably mounted on the fitting rotating rod (208), a lower transmission wheel (210) and two recording wheels (212) are fixedly mounted on the detection shaft (211), and a detection transmission belt (209) is wound around the lower transmission wheel (210) and the outer detection wheel (207).

6. The mapping and geographic information sampling device for road construction according to claim 1, characterized in that: The steering mechanism includes a fixed sleeve (316) fixedly installed inside the vehicle body (101), a rotating frame (304) rotatably mounted on the fixed sleeve (316), a rotating column (305) fixedly mounted on the rotating frame (304), a double-groove sleeve (306) rotatably mounted inside the vehicle body (101), the double-groove sleeve (306) having two long grooves, a recording track (309) fixedly mounted inside the vehicle body (101), a recording slider (308) slidably mounted on the recording track (309), a sliding column (307) fixedly mounted on the recording slider (308), the rotating column (305) and the sliding column (307) sliding in the two long grooves of the double-groove sleeve (306) respectively, and a position sensor being provided inside the recording slider (308) and the recording track (309).

7. A surveying and geographic information sampling device for road construction according to claim 6, characterized in that: The steering mechanism also includes a rotating cylinder (303) fixedly installed in a rotating frame (304), a steering frame (301) fixedly installed on the vehicle body (101), a steering wheel (302) rotatably installed on the steering frame (301), the steering wheel (302) drives the rotating cylinder (303) to rotate through a universal joint, a lifting column (310) is slidably installed in the rotating cylinder (303), an inner spring (311) is provided between the lifting column (310) and the rotating cylinder (303), two lower sliders (312) are slidably installed below the rotating frame (304), a lower rotating rod (313) is rotatably installed on the lower sliders (312), a wheel frame (314) is fixedly installed on the lifting column (310), the wheel frame (314) is rotatably installed with the lower rotating rod (313), and a steering wheel (315) is rotatably installed on the wheel frame (314).

8. A surveying and geographic information sampling device for road construction according to claim 3, characterized in that: The soil sampling mechanism also includes a side pinion (108) rotatably mounted on the sampling frame (103), a side bevel gear (107) fixedly mounted on the side pinion (108), the side bevel gear (107) meshing with the motor bevel gear (105), and the side pinion (108) meshing with the side large gear (109).

9. A surveying and geographic information sampling device for road construction according to claim 5, characterized in that: The recording mechanism also includes a traveling wheel (213) rotatably mounted on the lower support (102), an inner transmission wheel (214) fixedly mounted on the traveling wheel (213), an inner motor (201) fixedly mounted inside the vehicle body (101), a motor gear (202) fixedly mounted on the motor shaft of the inner motor (201), a transmission wheel (204) rotatably mounted inside the vehicle body (101), a mating gear (203) fixedly mounted on the transmission wheel (204), the motor gear (202) meshing with the mating gear (203), and a transmission belt (205) wrapped around the transmission wheel (204) and the inner transmission wheel (214).

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