Geological sampling device for civil engineering detection

Abstract

The invention discloses a civil engineering detection geological sampling device, and belongs to the technical field of soil detection, the civil engineering detection geological sampling device comprises a supporting bottom plate, a supporting top plate is arranged above the supporting bottom plate, and a plurality of first limiting supporting pieces for supporting and fixing the supporting top plate are arranged at the two ends of the upper surface of the supporting bottom plate; a sampling mechanism is arranged below the supporting top plate, the sampling mechanism comprises a sampling assembly for sampling and a discharging assembly for adjusting the height of the sampling assembly, the sampling assembly is arranged at the bottom of the discharging assembly, and a limiting through hole for allowing the sampling assembly to penetrate through is formed in the upper surface of the supporting bottom plate; through mutual cooperation of multiple structures, the sampling device can accurately sample soil at a target depth, and the sampling device can perform multiple times of sampling in a single sampling operation process, so that multiple times of sampling at the same depth is realized, and subsequent detection errors are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil detection, and in particular relates to a geological sampling device for civil engineering detection. Background Art

[0002] In the process of civil engineering, sampling of geological soil according to the infrastructure area is an important step. The results of geological testing provide an important basis for the design or planning of the construction. When conducting geological testing, corresponding sampling devices are required to sample the soil. The conventional sampling device comprises a support frame, a movable rod, a first threaded rod, a threaded sleeve, a spiral sampling rod, a support plate, a second threaded rod, a guide rod, a base, a connecting rod, a controller, a storage box and a threaded hole. The advantage of the sampling device is that it can prevent the threaded sampling rod from tilting during sampling. However, the traditional sampling device can only perform simple sampling by rotating the spiral sampling rod, which makes it impossible for the sampling device to accurately sample the soil at the target depth, and the sampling device cannot perform multiple samples during a single sampling operation, resulting in poor sampling effect of the sampling device, which urgently needs to be improved. Summary of the Invention

[0003] The purpose of the present invention is to provide a geological sampling device for civil engineering inspection to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a geological sampling device for civil engineering inspection, comprising a supporting base plate, a supporting top plate arranged above the supporting base plate, a plurality of first limiting support members for supporting and fixing the supporting top plate arranged at both ends of the upper surface of the supporting base plate, a sampling mechanism arranged below the supporting top plate, the sampling mechanism comprising a sampling assembly for sampling and a discharge assembly for adjusting the height of the sampling assembly, the sampling assembly being arranged at the bottom of the discharge assembly, and a limiting through hole for accommodating the sampling assembly to pass through being opened on the upper surface of the supporting base plate.

[0005] As a further solution of the present invention: the discharge assembly includes a first limit mounting plate, the lower surface of the first limit mounting plate is fixedly connected to a first driver, a hollow feed pipe is arranged below the first driver, and the output end of the first driver is provided with a spiral feed part for cooperating with the hollow feed pipe to transport the soil.

[0006] As a further solution of the present invention: a protective guide cover is fixedly connected to the top of the hollow feed pipe, and a plurality of second limit support members corresponding to the first limit mounting plate are provided on the top of the protective guide cover, one end of the second limit support member is fixedly connected to the first limit mounting plate, and the other end of the protective guide cover is fixedly connected to the protective guide cover.

[0007] As a further solution of the present invention: a first height adjustment member for adjusting the height of the first limit mounting plate is provided above the first driver, the top of the first height adjustment member is fixedly connected to the support top plate, and the bottom of the first height adjustment member is fixedly connected to the first limit mounting plate.

[0008] As a further solution of the present invention: the sampling assembly includes a tunneling rotor, which is rotatably arranged at the bottom of the hollow material conveying pipe, and a plurality of tunneling racks are arranged in a circular array on the lower surface of the tunneling rotor. A limit mounting ring fixedly connected to the hollow material conveying pipe is provided above the tunneling rotor, and a plurality of sampling units are arranged in a circular array on the side of the limit mounting ring, and a plurality of limit mounting holes corresponding to the sampling units are opened on the limit mounting ring.

[0009] As a further solution of the present invention: the sampling unit includes a limiting mounting cylinder, which is fixed to the inside of the limiting mounting ring through a limiting mounting hole, and a position adjusting component is provided at one end of the limiting mounting cylinder close to the hollow material conveying pipe, and an adjustable sampling cylinder is provided at the end of the limiting mounting cylinder away from the hollow material conveying pipe, and the telescopic end of the position adjusting component is fixedly connected to a second driver for driving the adjustable sampling cylinder to rotate.

[0010] As a further solution of the present invention: the output end of the second driver is threadedly connected to the adjustable sampling cylinder, the position adjustment part is fixedly connected to the limit mounting cylinder, and a plurality of cutting parts are provided at the end of the adjustable sampling cylinder away from the second driver, and the cutting parts are fixedly connected to the adjustable sampling cylinder.

[0011] As a further solution of the present invention: an adjustable sealing tube for sealing the open end of the limit mounting cylinder is arranged above the tunneling rotor, the adjustable sealing tube is slidably connected to the limit mounting ring, and a limit transmission disk fixedly connected to the adjustable sealing tube is arranged above the limit mounting ring, and a plurality of second height adjustment parts for cooperating with the limit transmission disk to adjust the height of the adjustable sealing tube are arranged on the upper surface of the limit mounting ring.

[0012] As a further solution of the present invention: an adjustable protective tube fixedly connected to the limit transmission disk is provided above the adjustable sealing tube, the adjustable protective tube is fixedly connected to the adjustable sealing tube, the top of the second height adjustment member is fixedly connected to the limit transmission disk, and the bottom of the second height adjustment member is fixedly connected to the limit mounting ring.

[0013] As a further solution of the present invention: a limiting protection plate corresponding to the adjustable protection tube is arranged above the limiting transmission plate, the limiting protection plate is fixed on the top of the adjustable protection tube, the limiting protection plate is slidingly connected to the hollow feed pipe, and the excavation rack is fixedly connected to the excavation rotor.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure and is easy to use. When in use, the sampling device can accurately sample the soil at the target depth through the mutual cooperation of multiple structures, and the sampling device can perform multiple samplings during a single sampling operation to achieve multiple samplings at the same depth to reduce subsequent detection errors, and sampling at different depths to improve sampling efficiency, so that the sampling effect of the sampling device is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a geological sampling device for civil engineering inspection; Figure 2 This is a structural diagram of a sampling mechanism in a geological sampling device for civil engineering inspection; Figure 3 This is a schematic diagram of the structure of a discharge assembly in a geological sampling device for civil engineering inspection; Figure 4 This is a structural diagram of a sampling assembly in a geological sampling device for civil engineering inspection; Figure 5 This is an exploded diagram of the structure of a sampling unit in a geological sampling device for civil engineering inspection; In the figure: 1-support bottom plate, 2-limiting through hole, 3-sampling mechanism, 4-first limiting support, 5-support top plate, 31-discharging assembly, 32-sampling assembly, 310-hollow feeding pipe, 311-spiral feeding member, 312-first limiting mounting plate, 313-first height adjustment member, 314-first driver, 315-second limiting support, 316-protective guide cover, 320-excavation rack, 321-excavation rotor, 322-limiting mounting ring, 323-adjustable blocking pipe, 324-limiting transmission disk, 325-limiting protective disk, 326-adjustable protective pipe, 327-second height adjustment member, 328-limiting mounting hole, 33-sampling unit, 331-adjustable sampling cylinder, 332-position adjustment member, 333-limiting mounting cylinder, 334-second driver, 335-cutting member. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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.

[0017] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense. For example, it can be fixedly connected or set, or detachably connected or set, or integrally connected or set.

[0018] For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] See also Figure 1 and Figure 2 The present embodiment provides a geological sampling device for civil engineering inspection, comprising a supporting base plate 1, a supporting top plate 5 being arranged above the supporting base plate 1, a plurality of first position-limiting support members 4 for supporting and fixing the supporting top plate 5 being arranged at both ends of the upper surface of the supporting base plate 1, a sampling mechanism 3 being arranged below the supporting top plate 5, the sampling mechanism 3 comprising a sampling assembly 32 for sampling and a discharge assembly 31 for adjusting the height of the sampling assembly 32, the sampling assembly 32 being arranged at the bottom of the discharge assembly 31, and a position-limiting through hole 2 for accommodating the sampling assembly 32 to pass through being opened on the upper surface of the supporting base plate 1.

[0020] See also Figure 1 、 Figure 2 and Figure 3 In one embodiment, in order to make the use of the discharge component 31 more reliable, in this embodiment, preferably, the discharge component 31 includes a first limiting mounting plate 312, and the lower surface of the first limiting mounting plate 312 is fixedly connected to the first driver 314, the first driver 314 is an electric motor, and a hollow conveying pipe 310 is provided below the first driver 314. The output end of the first driver 314 is provided with a spiral conveying member 311 for cooperating with the hollow conveying pipe 310 to convey the soil. When in use, the first driver 314, the hollow conveying pipe 310 and the spiral conveying member 311 form a conveying dragon to convey the soil.

[0021] See also Figure 2 and Figure 3In one embodiment, in order to enrich the functions of the discharge assembly 31, in this embodiment, preferably, a protective guide cover 316 is fixedly connected to the top of the hollow feed pipe 310, and the protective guide cover 316 guides the discharged soil during use. A plurality of second limit support members 315 corresponding to the first limit mounting plate 312 are provided on the top of the protective guide cover 316, one end of the second limit support member 315 is fixedly connected to the first limit mounting plate 312, and the other end of the protective guide cover 316 is fixedly connected to the protective guide cover 316. A first height adjustment member 313 for adjusting the height of the first limit mounting plate 312 is provided above the first driver 314. The first height adjustment member 313 is a cylinder or an electric telescopic rod. The top of the first height adjustment member 313 is fixedly connected to the support top plate 5, and the bottom of the first height adjustment member 313 is fixedly connected to the first limit mounting plate 312.

[0022] In another embodiment, in order to lower the cost of the discharge assembly 31, in this embodiment, preferably, the discharge assembly 31 includes a first limiting mounting plate 312, the lower surface of the first limiting mounting plate 312 is fixedly connected to a first driver 314, the first driver 314 is a pneumatic motor, a hollow conveying pipe 310 is provided below the first driver 314, the output end of the first driver 314 is provided with a spiral conveying member 311 for cooperating with the hollow conveying pipe 310 to convey soil, and the top of the hollow conveying pipe 310 is fixedly connected to a protective guide cover 316, which guides the discharged soil during use. The top of the protective guide cover 316 is provided with several second limit support members 315 corresponding to the first limit mounting plate 312. One end of the second limit support member 315 is fixedly connected to the first limit mounting plate 312, and the other end of the protective guide cover 316 is fixedly connected to the protective guide cover 316. A limit screw for adjusting the height of the first limit mounting plate 312 is provided above the first driver 314. The limit screw is rotatably connected to the first limit mounting plate 312 through a bearing, and the limit screw is threadedly connected to the support top plate 5. Through the setting of the limit screw, the user can manually adjust the height of the first limit mounting plate 312.

[0023] See also Figure 1 、 Figure 2 and Figure 4In one embodiment, to make the use of the sampling assembly 32 more reliable, in this embodiment, preferably, the sampling assembly 32 includes a boring rotor 321, which is rotatably arranged at the bottom of the hollow conveying pipe 310. The hollow conveying pipe 310 is arranged through the boring rotor 321. A plurality of boring racks 320 are arranged in a circular array on the lower surface of the boring rotor 321. The boring racks 320 are fixedly connected to the boring rotor 321. During use, the rotating boring rotor 321 cooperates with the boring racks 320 to drill holes in the ground, and the spiral conveying member 311 cooperates with the hollow conveying pipe 310 to transport and transfer crushed soil generated during the drilling process. A limit mounting ring 322 fixedly connected to the hollow conveying pipe 310 is provided above the boring rotor 321. A plurality of sampling units 33 are arranged in a circular array on the side of the limit mounting ring 322. The limit mounting ring 322 is provided with a plurality of limit mounting holes 328 corresponding to the sampling units 33.

[0024] See also Figure 4 and Figure 5 In one embodiment, in order to make the use of the sampling unit 33 more reliable, in this embodiment, preferably, the sampling unit 33 includes a limiting mounting cylinder 333, the limiting mounting cylinder 333 is a steel cylinder, the limiting mounting cylinder 333 is fixed to the inside of the limiting mounting ring 322 through the limiting mounting hole 328, the limiting mounting cylinder 333 is provided with a position adjustment member 332 at one end close to the hollow material delivery pipe 310, the position adjustment member 332 is an electric telescopic rod, the limiting mounting cylinder 333 is provided with an adjustable sampling cylinder 331 at one end away from the hollow material delivery pipe 310, the telescopic end of the position adjustment member 332 is fixedly connected to a second driver 334 for driving the adjustable sampling cylinder 331 to rotate, and the second driver The actuator 334 is an electric motor, and the output end of the second driver 334 is threadedly connected to the adjustable sampling cylinder 331. The threaded connection of the adjustable sampling cylinder 331 makes it easy for the user to quickly disassemble and assemble the adjustable sampling cylinder 331. The position adjustment member 332 is fixedly connected to the limit mounting cylinder 333. The end of the adjustable sampling cylinder 331 away from the second driver 334 is provided with a plurality of cutting members 335. The cutting members 335 are steel wire ropes, and the cutting members 335 are fixedly connected to the adjustable sampling cylinder 331. When in use, the soil is cut by the rotating cutting members 335, so that the columnar soil is completely retained inside the adjustable sampling cylinder 331, thereby improving the sampling speed and sampling quality of the sampling unit 33.

[0025] See also Figure 4 and Figure 5In one embodiment, in order to enrich the functions of the sampling assembly 32, in this embodiment, preferably, an adjustable blocking tube 323 for blocking the open end of the limiting mounting cylinder 333 is provided above the boring rotor 321, and the adjustable blocking tube 323 is slidably connected to the limiting mounting ring 322. A limiting transmission disk 324 fixedly connected to the adjustable blocking tube 323 is provided above the limiting mounting ring 322. A plurality of second height adjustment members 327 for cooperating with the limiting transmission disk 324 to adjust the height of the adjustable blocking tube 323 are provided on the upper surface of the limiting mounting ring 322. 327 is an electric telescopic rod. The top of the second height adjustment member 327 is fixedly connected to the limit transmission disk 324. The bottom of the second height adjustment member 327 is fixedly connected to the limit mounting ring 322. An adjustable protective tube 326 fixedly connected to the limit transmission disk 324 is provided above the adjustable blocking tube 323. The adjustable protective tube 326 is fixedly connected to the adjustable blocking tube 323. A limit protection disk 325 corresponding to the adjustable protective tube 326 is provided above the limit transmission disk 324. The limit protection disk 325 is fixed on the top of the adjustable protective tube 326. The limit protection disk 325 is slidably connected to the hollow feed pipe 310.

[0026] In another embodiment, in order to reduce the cost of the sampling assembly 32, in this embodiment, preferably, the sampling assembly 32 includes a tunneling rotor 321, which is rotatably arranged at the bottom of the hollow material conveying pipe 310, and the hollow material conveying pipe 310 is arranged through the tunneling rotor 321. A plurality of tunneling teeth are arranged in a circular array on the lower surface of the tunneling rotor 321, and the tunneling teeth are fixedly connected to the tunneling rotor 321. When in use, the rotating tunneling rotor 321 cooperates with the tunneling teeth to drill holes in the ground, and the spiral conveying member 311 cooperates with the hollow material conveying pipe 310 to transport and transfer the crushed soil generated during the drilling process. A limit mounting ring 322 fixedly connected to the hollow material conveying pipe 310 is provided above the tunneling rotor 321, and a plurality of sampling units 33 are arranged in a circular array on the side of the limit mounting ring 322. The limit mounting ring 322 is provided with a plurality of limit mounting holes 328 corresponding to the sampling units 33.

[0027] In another embodiment, in order to make the cost of the sampling unit 33 lower, in this embodiment, preferably, the sampling unit 33 includes a limit mounting cylinder 333, the limit mounting cylinder 333 is an iron cylinder, the limit mounting cylinder 333 is fixed to the inside of the limit mounting ring 322 through the limit mounting hole 328, the limit mounting cylinder 333 is provided with a position adjustment member 332 at one end close to the hollow material delivery pipe 310, the position adjustment member 332 is a cylinder, the limit mounting cylinder 333 is provided with an adjustable sampling cylinder 331 at one end away from the hollow material delivery pipe 310, and the telescopic end of the position adjustment member 332 is fixedly connected to The second driver 334 is used to drive the adjustable sampling cylinder 331 to rotate. The second driver 334 is a pneumatic motor. The output end of the second driver 334 is threadedly connected to the adjustable sampling cylinder 331. The threaded connection of the adjustable sampling cylinder 331 facilitates the user to quickly disassemble and assemble the adjustable sampling cylinder 331. The position adjustment member 332 is fixedly connected to the limit mounting cylinder 333. A plurality of cutting members 335 are provided at the end of the adjustable sampling cylinder 331 away from the second driver 334. The cutting member 335 is a nylon rope and is fixedly connected to the adjustable sampling cylinder 331.

[0028] In another embodiment, in order to enrich the functions of the sampling component 32, in this embodiment, preferably, an adjustable blocking tube 323 for blocking the open end of the limiting mounting cylinder 333 is provided above the boring rotor 321, and the adjustable blocking tube 323 is slidably connected to the limiting mounting ring 322. A limiting transmission disk 324 fixedly connected to the adjustable blocking tube 323 is provided above the limiting mounting ring 322, and a plurality of second height adjustment members 327 for cooperating with the limiting transmission disk 324 to adjust the height of the adjustable blocking tube 323 are provided on the upper surface of the limiting mounting ring 322. The second height adjustment member 327 is a cylinder, the top of the second height adjustment member 327 is fixedly connected to the limit transmission disk 324, the bottom of the second height adjustment member 327 is fixedly connected to the limit mounting ring 322, and an adjustable protective tube 326 fixedly connected to the limit transmission disk 324 is provided above the adjustable sealing tube 323, the adjustable protective tube 326 is fixedly connected to the adjustable sealing tube 323, and a plurality of limit protection rods are arranged in a circular array above the limit transmission disk 324, one end of the limit protection rod is fixedly connected to the adjustable protective tube 326, and the other end of the limit protection rod is slidably connected to the hollow feed pipe 310.

[0029] The working principle and usage process of the present invention are as follows: When in use, the sampling device is placed on the ground, and then the excavation rotor 321 is controlled to rotate, driving the excavation rack 320 to rotate. At the same time, the spiral feed member 311 is driven to rotate by the first driver 314. At this time, the first height adjustment member 313 is controlled to gradually extend, so that the excavation rotor 321 and the excavation rack 320 are gradually moved downward to perform the hole drilling operation. At this time, the spiral feed member 311 transports the crushed soil generated during the hole drilling process to the surface. The crushed soil is then scattered and further guided by the protective guide cover 316 before falling to the ground. After the hole is drilled, the second height adjustment member 327 is controlled to extend so that the adjustable blocking tube 323 moves up and loses its blocking effect on the sampling unit 33. Then, the height of the sampling unit 33 is adjusted by the first height adjustment member 313. When the sampling unit 33 is at the target depth, an appropriate number of sampling units 33 are controlled to perform the sampling operation. When the sampling unit 33 performs sampling, the position adjustment member 332 is first controlled to extend so that the adjustable sampling tube 331 is inserted into the soil on the side wall of the hole for sampling. Then, the adjustable sampling tube 331 is driven by the second driver 334. The cylinder 331 drives the cutting member 335 to rotate and cut the soil, so that the soil collected in the adjustable sampling cylinder 331 is completely retained therein to achieve sampling. After sampling is completed, the position adjustment member 332 is controlled to retract to reset the adjustable sampling cylinder 331. In the process of controlling the first height adjustment member 313 to retract and move the boring rotor 321 upward, the user can use the remaining sampling units 33 to perform multiple sampling at different heights, so that the sampling device can perform multiple sampling not only at the same depth, but also at different depths. Therefore, through the mutual cooperation of multiple structures, the sampling device can accurately sample the soil at the target depth, and the sampling device can perform multiple samplings during a single sampling operation to achieve multiple samplings at the same depth to reduce subsequent detection errors, and sampling at different depths to improve sampling efficiency, so that the sampling effect of the sampling device is better. Secondly, the present invention has a simple structure and is easy to use.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A geological sampling device for civil engineering inspection, comprising a supporting base plate, characterized in that: A supporting top plate is provided above the supporting bottom plate, and a plurality of first limiting supports for supporting and fixing the supporting top plate are provided at both ends of the upper surface of the supporting bottom plate. A sampling mechanism is provided below the supporting top plate, and the sampling mechanism includes a sampling assembly for sampling and a discharge assembly for adjusting the height of the sampling assembly. The sampling assembly is provided at the bottom of the discharge assembly, and a limiting through hole for accommodating the sampling assembly is provided on the upper surface of the supporting bottom plate. The sampling assembly includes a tunneling rotor, which is rotatably provided at the bottom of the hollow conveying pipe, and a plurality of first limiting supports are arranged in a circular array on the lower surface of the tunneling rotor. A tunneling rack is provided, and a limit mounting ring fixedly connected to the hollow material delivery pipe is provided above the tunneling rotor. A plurality of sampling units are arranged in a circular array on the side of the limit mounting ring. A plurality of limit mounting holes corresponding to the sampling units are opened on the limit mounting ring. The sampling unit includes a limit mounting cylinder, which is fixed to the inside of the limit mounting ring through the limit mounting holes. A position adjusting member is provided at one end of the limit mounting cylinder close to the hollow material delivery pipe, and an adjustable sampling cylinder is provided at the end of the limit mounting cylinder away from the hollow material delivery pipe. The telescopic end of the position adjusting member is fixedly connected to a second driver for driving the adjustable sampling cylinder to rotate.

2. The geological sampling device for civil engineering inspection according to claim 1, characterized in that: The output end of the second driver is threadedly connected to the adjustable sampling cylinder, the position adjustment member is fixedly connected to the limit mounting cylinder, and a plurality of cutting members are provided at one end of the adjustable sampling cylinder away from the second driver, and the cutting members are fixedly connected to the adjustable sampling cylinder.

3. The geological sampling device for civil engineering inspection according to claim 2, characterized in that: The discharge assembly includes a first limiting mounting plate, the lower surface of which is fixedly connected to a first driver, a hollow conveying pipe is provided below the first driver, and the output end of the first driver is provided with a spiral conveying member for cooperating with the hollow conveying pipe to convey soil.

4. The geological sampling device for civil engineering inspection according to claim 3 is characterized in that: A protective guide cover is fixedly connected to the top of the hollow feed pipe, and a plurality of second limit support members corresponding to the first limit mounting plate are provided on the top of the protective guide cover. One end of the second limit support member is fixedly connected to the first limit mounting plate, and the other end of the protective guide cover is fixedly connected to the protective guide cover.

5. The geological sampling device for civil engineering inspection according to claim 4 is characterized in that: A first height adjustment member for adjusting the height of the first limit mounting plate is provided above the first driver. The top of the first height adjustment member is fixedly connected to the support top plate, and the bottom of the first height adjustment member is fixedly connected to the first limit mounting plate.

6. The geological sampling device for civil engineering inspection according to claim 5, characterized in that: An adjustable sealing tube for sealing the open end of the limiting mounting tube is provided above the tunneling rotor. The adjustable sealing tube is slidably connected to the limiting mounting ring. A limiting transmission disk fixedly connected to the adjustable sealing tube is provided above the limiting mounting ring. A plurality of second height adjustment parts for cooperating with the limiting transmission disk to adjust the height of the adjustable sealing tube are provided on the upper surface of the limiting mounting ring.

7. The geological sampling device for civil engineering inspection according to claim 6, characterized in that: An adjustable protective tube fixedly connected to the limit transmission disk is provided above the adjustable sealing tube, the adjustable protective tube is fixedly connected to the adjustable sealing tube, the top of the second height adjustment member is fixedly connected to the limit transmission disk, and the bottom of the second height adjustment member is fixedly connected to the limit mounting ring.

8. The geological sampling device for civil engineering inspection according to claim 7, characterized in that: A limiting protection plate corresponding to the adjustable protection tube is provided above the limiting transmission plate. The limiting protection plate is fixed on the top of the adjustable protection tube. The limiting protection plate is slidably connected to the hollow feed pipe, and the excavation rack is fixedly connected to the excavation rotor.

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