A sampling device for roadbed quality detection in road construction

Abstract

The present invention relates to the field of roadbed detection technology, and in particular to a sampling device for roadbed quality detection during road construction. The device comprises a first protective shell, the first protective shell is provided with a first driving member, the first driving member is fixedly connected to an N-shaped frame via a first L-shaped rod, the N-shaped frame is slidably connected to a first sliding shell, the first sliding shell is fixedly connected to a third driving member, the third driving member is provided with a sampling ring cutter via a magnetic member, and the fourth driving member is provided with a drilling mechanism via a second L-shaped rod. The present invention drills an annular hole in the sampling area through the drilling mechanism, and samples the soil column in the annular hole through the sampling ring cutter, supports the soil column in the annular hole through a leveling mechanism to prevent the soil column from tipping over when sampling the soil column, and encircles the soil column through an embracing component to increase the contact area between the leveling mechanism and the soil column, and increases the embracing area of the soil column by the embracing component through an auxiliary component to prevent the soil column from tipping over and breaking during the sampling process.

Description

Technical Field

[0001] The present invention relates to the technical field of roadbed detection, in particular to a sampling device for roadbed quality detection during road construction. Background Art

[0002] Roadbed is an important part of road construction. It is both the main body of the road and the foundation of the road surface. Therefore, the construction quality of the roadbed will directly affect the use effect. During road construction, only through testing can the problems existing in the highway project be discovered. Only by doing a good job of roadbed testing can the quality and safety of the entire project be guaranteed.

[0003] The existing roadbed quality inspection sampling is carried out by manually knocking the ring knife, which is hammered into the roadbed where sampling is required. When the ring knife is hammered into the foundation manually, it is accompanied by continuous knocking. Due to the different knocking forces, the falling direction of the ring knife will directly deviate, thereby affecting the overall stratification effect of the sample. In addition, when the sample and the ring knife are taken out, the nearby soil layer still needs to be manually excavated to remove the sample taken by the ring knife. When the sample is taken out to the outside, it is inconvenient to remove the sample because the sample and the ring knife are connected to the surrounding soil layer, and the sample is easily separated from the ring knife during the removal process. Summary of the Invention

[0004] In order to overcome the disadvantages that different knocking forces will directly lead to deviations in the descending direction of the ring cutter, the sample and the ring cutter are connected to the surrounding soil layer, making it inconvenient to remove the sample, and the sample is easily separated from the contact with the ring cutter during the removal process, a sampling device for roadbed quality inspection in road construction is provided.

[0005] The technical implementation scheme of the present invention is: a sampling device for roadbed quality inspection during road construction, comprising a first protective shell, a handle fixed to the first protective shell, a sliding door symmetrically slidably connected to the first protective shell, a first driving member symmetrically arranged on the first protective shell, and the symmetrically distributed first driving members are all fixedly connected to a first L-shaped rod, an n-shaped frame is fixed between the symmetrical first L-shaped rods, the n-shaped frame is slidably connected to the first sliding shell, the n-shaped frame is fixedly connected to the second driving member, the telescopic end of the second driving member is fixedly connected to the first sliding shell, the first sliding shell is fixedly connected to the third driving member, the telescopic end of the third driving member is fixedly connected to the second protective shell, the n-shaped rods are fixedly connected to the second protective shell at equal intervals in the circumferential direction, the second protective shell is fixedly connected to a magnetic member, the magnetic member is provided with a sampling ring knife, the first protective shell is symmetrically arranged with a fourth driving member, and the symmetrically distributed fourth driving members are all fixedly connected to the second L-shaped rod The second L-shaped rod is provided with a drilling mechanism for drilling a hole in the ground, and the end of the first L-shaped rod away from the first driving member is provided with a leveling mechanism for preventing the soil column from tipping over, and the leveling mechanism is provided with an embracing assembly and an auxiliary assembly, the embracing assembly is used to increase the contact area between the leveling mechanism and the soil column, and the auxiliary assembly is used to maintain the stability of the soil column. The drilling mechanism includes a connecting frame, the connecting frame is rotatably connected to an inner gear ring, the inner gear ring is fixedly connected to a first hollow cylinder, and the first hollow cylinder is provided with discharge ports at equal intervals in the circumferential direction, the connecting frame is rotatably connected to an outer gear ring, and the outer gear ring is fixedly connected to a second hollow cylinder, the inner diameter of the second hollow cylinder is larger than the inner diameter of the first hollow cylinder, the second hollow cylinder is fixedly connected to a spiral rotating plate, the spiral rotating plate is fitted with the first hollow cylinder, the connecting frame is rotatably connected to a gear meshing with the inner gear ring and the outer gear ring, and the second L-shaped rod is fixedly connected to a fifth driving member fixed to the gear.

[0006] Preferably, crushing cutter heads are fixedly connected to the lower ends of the first hollow cylinder and the second hollow cylinder at equal intervals in the circumferential direction, and the crushing cutter heads are staggered.

[0007] Preferably, the central axis of the sampling ring coincides with the central axes of the first hollow cylinder and the second hollow cylinder.

[0008] Preferably, the leveling mechanism includes an annular frame, which is fixed to an end of the first L-shaped rod away from the first driving member, and the annular frame is slidably connected to the Z-shaped rod at equal intervals in the circumferential direction.

[0009] Preferably, the end of the Z-shaped rod away from the annular frame is slidably connected to the first sliding member, the Z-shaped rod is provided with a sliding groove, the inner side of the first sliding member is fixed with an arc-shaped baffle for sticking to the soil column, a spring is fixed between the first sliding member and the Z-shaped rod, the end of the first sliding member away from the annular frame is provided with an inclined sliding groove, the sliding groove of the Z-shaped rod is limitedly slidably connected to the first sliding frame, the end of the first sliding frame away from the annular frame is limitedly slidably matched with the inclined sliding groove of the first sliding member, and the annular frame is provided with an adjustment component for adjusting the Z-shaped rod.

[0010] Preferably, the adjustment assembly includes a sixth driving member, the sixth driving member is fixed to the annular frame, the telescopic end of the sixth driving member is fixed to the fixed frame, the fixed frame is fixed to a second sliding shell that slides with the annular frame at equal intervals in the circumferential direction, the second sliding shell is provided with an inclined sliding groove, and the Z-shaped rod is provided with a limit pin that slides with the inclined sliding groove of the second sliding shell.

[0011] Preferably, the embracing assembly includes a fixing part, which is fixed to the first sliding frame at equal axial intervals, the fixing part is symmetrically distributed, the fixing part is slidably connected to a symmetrically distributed second sliding part, the inner side of the second sliding part is set as an arc surface, and a first elastic part is fixed between the second sliding part and the fixing part.

[0012] Preferably, the auxiliary component includes symmetrically distributed arc-shaped plates, which are rotatably connected to symmetrically distributed second sliding members, and a second elastic member is fixed between the second sliding member and the arc-shaped plates.

[0013] Preferably, a soil-breaking component is also included, which is arranged on the Z-shaped rod. The soil-breaking component is used to scrape the outside of the soil column. The soil-breaking component includes a second sliding frame. The soil-breaking component is located below the sampling ring knife. The second sliding frame is slidably connected to the Z-shaped rod. The second sliding frame is fixed with a scraper. The Z-shaped rod is fixed with a fixed rod that slides with the second sliding frame. A third elastic member is fixed between the second sliding frame and the Z-shaped rod.

[0014] Preferably, the scraper is arranged to be arc-shaped, and the curvature of the scraper is directed toward the inner diameter end of the annular frame. The lower part of the scraper is arranged to be pointed, which is used to quickly insert the scraper into the soil column. The scraper is located below the sampling ring knife, and the inner side surface of the second sliding member is arranged to be an inclined surface. The bottom of the second sliding frame is wedge-shaped with the inclined surface of the second sliding member.

[0015] Compared with the prior art, the present invention has the following advantages: the present invention uses a drilling mechanism to drill an annular hole in the sampling area, and uses a leveling mechanism to support the soil column in the annular hole to prevent the soil column from tipping over. The soil column is encircled by an embracing component, thereby increasing the contact area between the leveling mechanism and the soil column. The embracing area of the soil column by the embracing component is increased by an auxiliary component, further preventing the soil column from tipping over and breaking during the sampling process, and enhancing the protection of the soil column, thereby maintaining the stability of the soil column during the sampling process.

[0016] By coordinating the counterclockwise rotation of the first hollow cylinder with the clockwise rotation of the second hollow cylinder, the crushed soil is discharged faster and evenly scattered around the first hollow cylinder, preventing the crushed soil from accumulating in a fixed position for a long time, thereby affecting the rotation of the first hollow cylinder, and accelerating the crushing efficiency of the ground through the crushing cutter head.

[0017] The N-shaped rod cooperates with the second sliding frame and the scraper to scrape the soil column outside the sampling ring knife, thereby reducing the squeezing force of the soil column on the sampling ring knife when inserting it into the soil column, making it easier to insert the sampling ring knife into the soil column. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention.

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the main three-dimensional structure of the first sliding shell and the second driving member of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the drilling mechanism of the present invention.

[0022] Figure 5 It is a partial schematic diagram of the crushing cutter head of the present invention.

[0023] Figure 6 It is a schematic diagram of the main three-dimensional structure of the second hollow cylinder and the annular frame of the present invention.

[0024] Figure 7 It is a schematic diagram of the main three-dimensional structure of the ring frame and Z-shaped rod of the present invention.

[0025] Figure 8 It is a schematic diagram of the main three-dimensional structure of the leveling mechanism of the present invention.

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention.

[0027] Figure 10 It is a schematic diagram of the three-dimensional structure of the auxiliary component of the present invention.

[0028] Figure 11 It is a schematic diagram of the three-dimensional structure of the encircling component of the present invention.

[0029] Figure 12 It is a schematic diagram of the three-dimensional structure of the earth-breaking component of the present invention.

[0030] Figure 13 It is a schematic diagram of the three-dimensional structure of a part of the earth-breaking component of the present invention.

[0031] Figure 14 This is a schematic diagram of the working status of the sampling ring knife and the scraper of the present invention.

[0032] The accompanying drawings are marked as follows: 1-first protective shell, 2-handle, 3-sliding door, 4-first driving member, 5-first L-shaped rod, 6-N-shaped frame, 7-first sliding shell, 701-second driving member, 8-third driving member, 9-second protective shell, 901-N-shaped rod, 902-magnetic member, 10-sampling ring cutter, 11-fourth driving member, 12-second L-shaped rod, 13-drilling mechanism, 1301-connecting frame, 1302-inner gear ring, 1303-first hollow cylinder, 1304-outer gear ring, 1305-second hollow cylinder, 1306-spiral rotating plate, 1307-gear, 1308-fifth driving member Moving part, 1309-crushing cutter head, 14-leveling mechanism, 1401-annular frame, 1402-Z-shaped rod, 1403-first sliding member, 1404-first sliding frame, 1405-sixth driving member, 1406-fixed frame, 1407-second sliding shell, 15-encircling component, 1501-fixed member, 1502-second sliding member, 1503-first elastic member, 16-auxiliary component, 1601-arc plate, 1602-second elastic member, 17-soil breaking component, 1701-second sliding frame, 1702-scraper, 1703-fixed rod, 1704-third elastic member. DETAILED DESCRIPTION

[0033] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1

[0035] A sampling device for roadbed quality detection in road construction, such as Figure 1-Figure 7As shown, it includes a first protective shell 1, the first protective shell 1 is fixedly connected to a handle 2, the first protective shell 1 is symmetrically slidably connected to a sliding door 3, the first protective shell 1 is symmetrically provided with a first driving member 4, the first driving member 4 is an electric slide rail, the symmetrically distributed first driving members 4 are bolted to a first L-shaped rod 5, the first L-shaped rod 5 is bolted to an n-shaped frame 6, the symmetrically distributed first L-shaped rod 5 is connected through the n-shaped frame 6, the n-shaped frame 6 is slidably connected to the first sliding shell 7, the n-shaped frame 6 is bolted to a second driving member 701, and the second driving member 701 is an electric hydraulic Press the push rod, the telescopic end of the second driving member 701 is fixedly connected to the first sliding shell 7, the first sliding shell 7 is bolted to the third driving member 8, the third driving member 8 is an electric hydraulic push rod, the telescopic end of the third driving member 8 is fixedly connected to the second protective shell 9, the second protective shell 9 is fixedly connected with n-shaped rods 901 at equal intervals in the circumference, the second protective shell 9 is bonded with a magnetic member 902, and the magnetic member 902 is plugged with a sampling ring 10. The first sliding shell 7, the third driving member 8 and the sampling ring 10 and the parts thereon are pushed to the left or right by the second driving member 701, so that the sampling ring The sample taken by the ring cutter 10 is dislocated from the soil column, cutting off the contact between the sample taken by the sampling ring cutter 10 and the soil column. The first protective shell 1 is symmetrically provided with a fourth driving member 11, and the fourth driving member 11 is an electric slide rail. The symmetrically distributed fourth driving members 11 are all bolted to a second L-shaped rod 12. The lower end of the second L-shaped rod 12 is provided with a drilling mechanism 13, and the drilling mechanism 13 is used to drill a hole in the ground. The lower end of the first L-shaped rod 5 is provided with a leveling mechanism 14, and the leveling mechanism 14 is used to prevent the soil column from tipping over. The sampling area is drilled out of an annular hole through the drilling mechanism 13 , and the soil column in the annular hole is supported by the leveling mechanism 14 to prevent the soil column from tipping over during sampling. The leveling mechanism 14 is provided with an embracing component 15 for increasing the contact area with the soil column. The leveling mechanism 14 is provided with an auxiliary component 16 for maintaining the stability of the soil column. The soil column is embraced by the embracing component 15, thereby increasing the contact area between the leveling mechanism 14 and the soil column. The embracing area of the soil column by the embracing component 15 is increased by the auxiliary component 16, further preventing the soil column from tipping over and breaking during the sampling process, and enhancing the protection of the soil column.

[0036] like Figure 2 、 Figure 4 and Figure 5As shown, the drilling mechanism 13 includes a connecting frame 1301, the connecting frame 1301 is rotatably connected to the inner gear ring 1302, the inner gear ring 1302 is fixedly connected to the first hollow cylinder 1303, the first hollow cylinder 1303 is provided with discharge ports at equal intervals in the circumferential direction, the connecting frame 1301 is rotatably connected to the outer gear ring 1304, the outer gear ring 1304 is fixedly connected to the second hollow cylinder 1305, the central axis of the sampling ring cutter 10 coincides with the central axis of the first hollow cylinder 1303 and the second hollow cylinder 1305, and the second hollow cylinder 1303 is provided with a discharge port at equal intervals in the circumferential direction. The inner diameter of 05 is larger than the inner diameter of the first hollow cylinder 1303. The second hollow cylinder 1305 is fixedly connected with a spiral rotating plate 1306. The spiral rotating plate 1306 is fitted with the first hollow cylinder 1303. The connecting frame 1301 is rotatably connected with a gear 1307 that meshes with the inner gear ring 1302 and the outer gear ring 1304. The second L-shaped rod 12 is fixedly connected with a fifth driving member 1308 that is key-connected with the gear 1307. The fifth driving member 1308 is a driving motor. The lower ends of the first hollow cylinder 1303 and the second hollow cylinder 1305 are fixedly connected with the inner gear ring 1302 and the outer gear ring 1304. Crushing cutter heads 1309 for pre-crushing the ground are fixedly connected at equal intervals in the circumference. The crushing cutter heads 1309 are staggered. The inclined surface of the outer crushing cutter head 1309 faces the inner side of the first hollow cylinder 1303 and the second hollow cylinder 1305, and the inclined surface of the inner crushing cutter head 1309 faces the outer side of the first hollow cylinder 1303 and the second hollow cylinder 1305. The crushing cutter heads 1309 at the bottom of the first hollow cylinder 1303 and the second hollow cylinder 1305 crush the ground in the sampling area. The rotation of the spiral rotating plate 1306 transfers the crushed soil in the annular hole upward, and the crushed soil is discharged outward from the discharge port on the outside of the first hollow cylinder 1303. The counterclockwise rotation of the first hollow cylinder 1303 and the clockwise rotation of the second hollow cylinder 1305 accelerate the discharge of the crushed soil and make the crushed soil evenly scattered around the first hollow cylinder 1303, preventing the crushed soil from accumulating in a fixed position for a long time, thereby affecting the rotation of the first hollow cylinder 1303. The diameter of the soil column in the annular hole is larger than the diameter of the sampling ring knife.

[0037] like Figure 7-10 and Figure 12 and Figure 13As shown, the leveling mechanism 14 includes an annular frame 1401, which is fixedly connected to the lower end of the first L-shaped rod 5, and the annular frame 1401 is circumferentially and equidistantly slidably connected to a Z-shaped rod 1402, and the Z-shaped rod is provided with a sliding groove, and the lower end of the Z-shaped rod 1402 is slidably connected to a first sliding member 1403, and the inner side surface of the first sliding member 1403 is fixedly connected to an arc-shaped baffle for sticking tightly to the soil column. A spring is fixedly connected between the first sliding member 1403 and the Z-shaped rod 1402, and the lower end of the first sliding member 1403 is provided with an inclined sliding groove, and the sliding groove of the Z-shaped rod 1402 is limitedly slidably connected to the first sliding frame 1404, and the soil column is supported by the first sliding frames 1404 around to prevent the soil column from tilting to the four sides. The lower end of the first sliding frame 1404 is limited and slidably matched with the inclined sliding groove of the first sliding member 1403, and the annular frame 1401 is provided with an adjustment component, which is used to adjust the Z-shaped rod 1402.

[0038] like Figure 7 and Figure 9 As shown, the adjustment component includes a sixth driving member 1405, which is an electric hydraulic push rod. The sixth driving member 1405 is fixedly connected to the annular frame 1401, and the telescopic end of the sixth driving member 1405 is fixedly connected to the fixing frame 1406. The fixing frame 1406 is fixedly connected with a second sliding shell 1407 that slides with the annular frame 1401 at equal intervals in the circumferential direction. The second sliding shell 1407 is provided with an inclined slide groove, and the Z-shaped rod 1402 is provided with a limit pin that slides with the inclined slide groove of the second sliding shell 1407. When sampling, the fixing frame 1406 and the second sliding shell 1407 are driven upward by the sixth driving member 1405, so that the Z-shaped rod 1402 and the parts thereon in the annular frame 1401 expand outward in the circumferential direction, and the annular frame 1401 and the parts thereon are placed in the annular hole by relying on the first driving member 4, and the soil column is fixed by the Z-shaped rod 1402 and the parts thereon.

[0039] like Figure 8 、 Figure 10 、 Figure 11 and Figure 12 As shown, the embracing assembly 15 includes a fixing part 1501, which is fixedly connected to the first sliding frame 1404 at equal axial intervals. The fixing parts 1501 are symmetrically distributed. The fixing parts 1501 are slidably connected to the symmetrically distributed second sliding parts 1502. The inner side of the second sliding part 1502 is set as an arc surface. The arc surface of the second sliding part 1502 is used to fit tightly against the soil column. A first elastic part 1503 is fixedly connected between the second sliding part 1502 and the fixing part 1501. The first elastic part 1503 is a spring. The soil column is embraced by the second sliding part 1502, thereby increasing the contact area between the first sliding frame 1404 and the soil column.

[0040] like Figure 8 、 Figure 10-12 As shown, the auxiliary component 16 includes a symmetrically distributed arc plate 1601, which is rotatably connected to a symmetrically distributed second sliding member. A second elastic member 1602 is fixedly connected between the second sliding member 1502 and the arc plate 1601. The second elastic member 1602 is a torsion spring. The contact area between the second sliding member 1502 and the soil column is increased through the arc plate 1601. Under the action of the second elastic member 1602, the arc plate 1601 strengthens the fixation of the soil column when embracing the soil column, further preventing the soil column from tipping over and breaking during the sampling process, and enhancing the protection of the soil column.

[0041] When sampling of the roadbed is required, the user first cleans the sampling area. After cleaning the sampling area, the user places the device in the sampling area. Then, the user opens the sliding door 3 and places the sampling ring knife 10 into the second protective shell 9. The sampling ring knife 10 is adsorbed and fixed by the magnetic member 902. After the sampling ring knife 10 is placed, the sliding door 3 is closed. Then, the fifth driving member 1308 inside the second L-shaped rod 12 is opened. When the fifth driving member 1308 rotates, it drives the sampling ring knife 10 to rotate. The gear 1307 rotates counterclockwise, and the gear 1307 drives the outer gear ring 1304 and the second hollow cylinder 1305 and the parts thereon to rotate clockwise, and then the gear 1307 drives the inner gear ring 1302 and the first hollow cylinder 1303 and the parts thereon to rotate counterclockwise. When the second hollow cylinder 1305 and the first hollow cylinder 1303 rotate, the crushing cutter head 1309 at the lower end crushes the ground in the sampling area, and the crushing cutter head 1309 accelerates the crushing efficiency of the ground.

[0042] Then, the fourth driving member 11 drives the second L-shaped rod 12 and the parts thereon to move downward. During the downward movement, the ground in the sampling area is crushed by the crushing cutter head 1309 at the bottom of the first hollow cylinder 1303 and the second hollow cylinder 1305, and the crushed soil is transferred to its upper end through the clockwise rotation of the second hollow cylinder 1305 and the spiral rotating plate 1306. Along with the rotation of the first hollow cylinder 1303, the crushed soil transferred by the spiral rotating plate 1306 is transferred to the outside from the discharge port around the first hollow cylinder 1303. Through the counterclockwise rotation of the first hollow cylinder 1303 and the clockwise rotation of the second hollow cylinder 1305, the crushed soil is accelerated to be discharged and the crushed soil is evenly scattered around the first hollow cylinder 1303, preventing the crushed soil from accumulating in a fixed position for a long time, thereby affecting the rotation of the first hollow cylinder 1303.

[0043] After the second L-shaped rod 12 and the first hollow cylinder 1303 and the second hollow cylinder 1305 and the parts thereon are in the designated positions, the crushed soil in the annular hole is transferred upward by the rotation of the spiral rotating plate 1306, and the crushed soil is discharged outward from the discharge port on the outside of the first hollow cylinder 1303. After the cleaning is completed, the fifth driving member 1308 is closed to stop its rotation, and then the second L-shaped rod 12 and the parts thereon are driven to move upward to the upper limit position by the fourth driving member 11.

[0044] Then, the first driving member 4 drives the first L-shaped rod 5 and the parts on it to move downward. After the annular frame 1401 and the parts on it move downward to the bottom of the second hollow cylinder 1305, the sixth driving member 1405 drives the fixing frame 1406 and the second sliding shell 1407 to move upward. When the second sliding shell 1407 moves upward, the inclined sliding groove thereon cooperates with the limit pin of the Z-shaped rod 1402 to make the Z-shaped rod 1402 and the parts on it expand outward to the limit position. Then, the first driving member 4 drives the first L-shaped rod 5 and the parts on it to move into the annular hole. After the first sliding member 1403 contacts the ground of the annular hole, the first driving member 4 keeps the first L-shaped rod 5 and the parts on it stationary. Then, the sixth driving member 1405 drives the fixing frame 1406 and the second sliding shell 1407 to move downward. After the arc-shaped baffle at the bottom of the first sliding member 1403 contacts the outer side of the central soil column, the sixth driving member 1405 makes the fixing frame 140 6 and the second sliding shell 1407 stop sliding and remain stationary, and then the first driving member 4 drives the first L-shaped rod 5 and the parts thereon to continue to move downward. During movement, the first sliding frame 1404 and the parts thereon move inward by squeezing the Z-shaped rod 1402 at the bottom of the first sliding member 1403 (the spring is in a tightened state at this time). During movement, the soil column is supported by the first sliding frames 1404 on all sides to prevent the soil column from tipping over, and the soil column is embraced by the second sliding member 1502, thereby increasing the contact area between the first sliding frame 1404 and the soil column, preventing the soil column from tipping over, and at the same time increasing the contact area between the second sliding member 1502 and the soil column through the arc plate 1601. Under the action of the second elastic member 1602, the arc plate 1601 strengthens the fixation of the soil column when embracing the soil column, further preventing the soil column from tipping over and breaking during the sampling process, and enhancing the protection of the soil column to maintain the stability of the soil column during the sampling process.

[0045] After the soil column is encircled and fixed, the sampling ring 10 and the parts thereon are pushed downward by the third driving member 8, and the sampling ring 10 is slowly inserted into the soil column. When the sampling ring 10 is inserted into the soil column, the broken soil outside the sampling range is diffused to the surrounding areas by the sampling ring 10. The broken soil diffused outward squeezes the second sliding members 1502 on the surrounding areas, and scatters to the surrounding areas through the gaps between the second sliding members 1502 on the surrounding areas, so that the second sliding members 1502 on the same layer as the sampling ring 10 move outward (the first elastic member 1503 is in a tightened state during movement). As the sampling ring 10 continues to move downward, the second sliding member 1502 on the same layer as the sampling ring 10 is separated from the contact with the soil column.

[0046] After the sampling ring cutter 10 moves to the extreme position, the first sliding shell 7, the third driving member 8, the sampling ring cutter 10 and the parts thereon are pushed to the left or right by the second driving member 701, so that the sample taken by the sampling ring cutter 10 is misaligned with the soil column, thereby cutting off the contact between the sample taken by the sampling ring cutter 10 and the soil column.

[0047] When the sampling ring cutter 10 completes sampling of the soil column, the first sliding shell 7, the third driving member 8, the sampling ring cutter 10 and the parts thereon are first reset through the second driving member 701, and then the sampling ring cutter 10 and the parts thereon are moved upward to the basic state through the third driving member 8, so that the sampling ring cutter 10 is out of contact with the soil column.

[0048] When the sampling ring cutter 10 and the parts thereon move to the basic state, the first L-shaped rod 5 and the parts thereon are first dragged upward by the first driving member 4. When the first sliding member 1403 is out of contact with the bottom of the annular hole, the first sliding frame 1404 is reset outward along the inclined slide groove of the first sliding member 1403 and the parts thereon under the action of the spring. During the reset, the second sliding member 1502 and the arc plate 1601 are both out of contact with the soil column, and the second sliding member 1502 is reset under the action of the first elastic member 1503.

[0049] When the first driving member 4 separates the first L-shaped rod 5 and the parts thereon from contact with the soil column, the fixing frame 1406 and the second sliding shell 1407 are moved downward by the sixth driving member 1405. During the movement, the Z-shaped rod 1402 and the parts thereon are simultaneously gathered inward by the cooperation of the inclined slide groove and the limit pin of the Z-shaped rod 1402. When the first driving member 4 moves the first L-shaped rod 5 and the parts thereon to the basic state, the sampling of the roadbed is completed at this time, and then the user opens the sliding door 3 and takes out the sampling ring knife 10 from the second protective shell 9. After taking out the sampling ring knife 10, the sliding door 3 can be closed.

[0050] Example 2

[0051] On the basis of Example 1, Figure 6-Figure 8 and Figure 12-14 As shown, it also includes a soil-breaking component 17, which is arranged on the Z-shaped rod 1402. The soil-breaking component 17 is used to scrape the outside of the soil column. The soil-breaking component 17 includes a second sliding frame 1701, the inner side surface of the second sliding member 1502 is set as an inclined surface, and the bottom of the second sliding frame 1701 is provided with an inclined surface that slides with the inclined surface of the second sliding member 1502. The second sliding frame 1701 is slidably connected to the Z-shaped rod 1402. The second sliding frame 1701 is fixed with a scraper 1702, and the scraper 1702 is located below the sampling ring knife 10. The scraper 1702 is set to an arc, and the curvature of the scraper 1702 is directed towards the annular frame 140 1, the lower part of the scraper 1702 is set to a pointed shape, which is used to quickly insert the scraper 1702 into the soil column. The scraper 1702 is located below the sampling ring 10, and cooperates with the second sliding frame 1701 and the scraper 1702 through the N-shaped rod 901 to scrape the soil column outside the sampling ring 10, thereby reducing the squeezing force of the soil column on the sampling ring 10 when inserting it into the soil column, making it easier for the sampling ring 10 to be inserted into the soil column. The Z-shaped rod 1402 is fixedly connected to a fixed rod 1703 that slides with the second sliding frame 1701, and a third elastic member 1704 is fixedly connected between the second sliding frame 1701 and the Z-shaped rod 1402.

[0052] After the soil column is encircled and fixed, the sampling ring knife 10 and the parts thereon are pushed downward by the third driving member 8, and the sampling ring knife 10 is inserted into the soil column. When the sampling ring knife 10 is inserted into the soil column, the second sliding frame 1701 and the scraper 1702 are squeezed downward by the n-shaped rod 901 (at this time, the third elastic member 1704 is in a tightened state), and the soil column outside the sampling ring knife 10 is scraped, thereby reducing the squeezing force of the soil column on the sampling ring knife 10 when the sampling ring knife 10 is inserted into the soil column, so that the sampling ring knife 10 is It is easier to insert into the soil column. When the sampling ring knife 10 is inserted into the same layer as the second sliding member 1502, the inclined surface of the second sliding member 1502 is squeezed by the inclined surface on the outside of the second sliding frame 1701, so that the surrounding second sliding members 1502 move outward at the same time, so that the second sliding member 1502 is out of contact with the soil column surrounded by this layer. When the sampling ring knife 10 resets upward after taking the sample, the second sliding frame 1701 and the scraper 1702 are reset upward under the action of the third elastic member 1704.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sampling device for roadbed quality inspection during road construction, comprising a first protective shell (1), the first protective shell (1) being fixedly connected to a handle (2), the first protective shell (1) being symmetrically slidably connected to a sliding door (3), the first protective shell (1) being symmetrically provided with first driving members (4), the symmetrically distributed first driving members (4) being all fixedly connected to first L-shaped rods (5), an n-shaped frame (6) being fixedly connected between the symmetrical first L-shaped rods (5), the n-shaped frame (6) being slidably connected to the first sliding shell ( 7), the n-shaped frame (6) is fixedly connected to a second driving member (701), the telescopic end of the second driving member (701) is fixedly connected to the first sliding shell (7), the first sliding shell (7) is fixedly connected to a third driving member (8), the telescopic end of the third driving member (8) is fixedly connected to a second protective shell (9), the second protective shell (9) is fixedly connected to n-shaped rods (901) at equal intervals in the circumferential direction, the second protective shell (9) is fixedly connected to a magnetic member (902), and the magnetic member (902) is provided with a sampling ring knife (10), characterized in that, The invention also includes a fourth driving member (11), which is symmetrically arranged on the first protective shell (1), and the symmetrically distributed fourth driving members (11) are all fixedly connected to a second L-shaped rod (12), and the second L-shaped rod (12) is provided with a drilling mechanism (13) for drilling holes in the ground. The end of the first L-shaped rod (5) away from the first driving member (4) is provided with a leveling mechanism (14) for preventing the soil column from tipping over. The leveling mechanism (14) is provided with an embracing component (15) and an auxiliary component (16). The embracing component (15) is used to increase the contact area between the leveling mechanism (14) and the soil column, and the auxiliary component (16) is used to maintain the stability of the soil column. The drilling mechanism (13) includes a connecting frame (1301), and the connecting frame (1301) is rotatably connected to an inner gear ring (1302). The inner gear ring (1302) is fixedly connected to the first hollow cylinder (1303), and the first hollow cylinder (1303) is provided with discharge ports at equal intervals in the circumferential direction. The connecting frame (1301) is rotatably connected to the outer gear ring (1304), and the outer gear ring (1304) is fixedly connected to the second hollow cylinder (1305). The inner diameter of the second hollow cylinder (1305) is larger than the inner diameter of the first hollow cylinder (1303). The second hollow cylinder (1305) is fixedly connected to a spiral rotating plate (1306), and the spiral rotating plate (1306) is fitted with the first hollow cylinder (1303). The connecting frame (1301) is rotatably connected to a gear (1307) meshing with the inner gear ring (1302) and the outer gear ring (1304), and the second L-shaped rod (12) is fixedly connected to a fifth driving member (1308) fixedly connected to the gear (1307). The embracing assembly (15) includes a fixing member (1501), the fixing member (1501) is fixed to the first sliding frame (1404) at equal intervals in the axial direction, the fixing members (1501) are symmetrically distributed, the fixing members (1501) are slidably connected to the symmetrically distributed second sliding members (1502), the inner side of the second sliding member (1502) is set as an arc surface, and a first elastic member (1503) is fixed between the second sliding member (1502) and the fixing member (1501); The auxiliary component (16) includes symmetrically distributed arc plates (1601), which are rotatably connected to symmetrically distributed second sliding members (1502), and a second elastic member (1602) is fixed between the second sliding member (1502) and the arc plates (1601).

2. A sampling device for roadbed quality detection in road construction according to claim 1, characterized in that: Crushing cutter heads (1309) are fixedly connected to the lower ends of the first hollow cylinder (1303) and the second hollow cylinder (1305) at equal intervals in the circumferential direction, and the crushing cutter heads (1309) are staggered.

3. A sampling device for roadbed quality detection in road construction according to claim 1, characterized in that: The central axis of the sampling ring cutter (10) coincides with the central axes of the first hollow cylinder (1303) and the second hollow cylinder (1305).

4. A sampling device for roadbed quality detection in road construction according to claim 1, characterized in that: The leveling mechanism (14) comprises an annular frame (1401), the annular frame (1401) being fixed to one end of the first L-shaped rod (5) away from the first driving member (4), and the annular frame (1401) being slidably connected to Z-shaped rods (1402) at equal intervals in the circumferential direction.

5. A sampling device for roadbed quality detection in road construction according to claim 4, characterized in that: The end of the Z-shaped rod (1402) away from the annular frame (1401) is slidably connected to the first sliding member (1403), the Z-shaped rod (1402) is provided with a sliding groove, the inner side surface of the first sliding member (1403) is fixedly connected with an arc-shaped blocking piece for being closely attached to the soil column, a spring is fixedly connected between the first sliding member (1403) and the Z-shaped rod (1402), the end of the first sliding member (1403) away from the annular frame (1401) is provided with an inclined sliding groove, the sliding groove of the Z-shaped rod (1402) is limitedly slidably connected to the first sliding frame (1404), the end of the first sliding frame (1404) away from the annular frame (1401) is limitedly slidably matched with the inclined sliding groove of the first sliding member (1403), and the annular frame (1401) is provided with an adjustment component for adjusting the Z-shaped rod (1402).

6. A sampling device for roadbed quality inspection in road construction according to claim 5, characterized in that: The adjustment component includes a sixth driving member (1405), the sixth driving member (1405) is fixed to the annular frame (1401), the telescopic end of the sixth driving member (1405) is fixed to the fixed frame (1406), the fixed frame (1406) is fixed with a second sliding shell (1407) that is slidably matched with the annular frame (1401) at equal intervals in the circumferential direction, the second sliding shell (1407) is provided with an inclined sliding groove, and the Z-shaped rod (1402) is provided with a limit pin that is slidably matched with the inclined sliding groove of the second sliding shell (1407).

7. A sampling device for roadbed quality inspection in road construction according to claim 6, characterized in that: The invention also includes a soil-breaking component (17), which is arranged on the Z-shaped rod (1402) and is used to scrape the outer side of the soil column. The soil-breaking component (17) includes a second sliding frame (1701), which is located below the sampling ring knife (10). The second sliding frame (1701) is slidably connected to the Z-shaped rod (1402). The second sliding frame (1701) is fixedly connected to the scraper (1702). The Z-shaped rod (1402) is fixedly connected to a fixed rod (1703) that slidably cooperates with the second sliding frame (1701). A third elastic member (1704) is fixedly connected between the second sliding frame (1701) and the Z-shaped rod (1402).

8. A sampling device for roadbed quality inspection in road construction according to claim 7, characterized in that: The scraper (1702) is configured to be arc-shaped, and the arc of the scraper (1702) faces the inner diameter end of the annular frame (1401). The lower portion of the scraper (1702) is configured to be pointed, for quickly inserting the scraper (1702) into the soil column. The scraper (1702) is located below the sampling ring knife (10). The inner side surface of the second sliding member (1502) is configured to be an inclined surface, and the bottom of the second sliding frame (1701) is wedge-fitted with the inclined surface of the second sliding member (1502).

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