A sampling device for geological surveys

Abstract

The utility model discloses a sampling device for geological investigation relates to geological prospecting technical field. Hollow post, reciprocating assembly are included, set up in the hollow post inside, are used for driving drill bit to go up and down translation, make drill bit enter to the inside of soil, control sampling depth, sampling assembly, set up in reciprocating assembly inside, are used for breaking open soil and carry out sampling to it. The utility model discloses a mechanical drive of reciprocating assembly replaces manual excavation, promotes the sampling efficiency, and has reduced the physical consumption in hard stratum, and drill bit pre -breaks the channel and combines spiral blade delivery, can collect soil debris, and the sample layering in sampling cylinder is consistent with soil original deposition order, guarantees analysis accuracy, and the overall structure is simple, and one person can operate, is applicable to the geological investigation scene of complex topography in the field, under the synergic design of reciprocating assembly and sampling assembly, has improved the efficiency of geological sampling.

Description

Technical Field

[0001] This utility model relates to the field of geological exploration technology, specifically a sampling device for geological surveys. Background Technology

[0002] Geological survey refers to all survey work that takes geological phenomena (rocks, strata, structures, minerals, hydrogeology, landforms, etc.) as its object, is guided by geology and related sciences, and is based on observation and research. In the process of soil survey and sampling, soil samples are taken in order to cooperate with geological research work.

[0003] Existing methods for soil sampling mostly involve manually digging up soil samples for preservation. However, when the soil is hard, digging becomes time-consuming and laborious, increasing the difficulty of sampling and hindering rapid sampling, which affects the progress of geological surveys. Therefore, a sampling device for geological surveys is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for geological surveys to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for geological surveys, comprising: a hollow column,

[0006] The reciprocating component, located inside the hollow column, is used to drive the drill bit to move up and down horizontally, prompting the drill bit to enter the soil and control the sampling depth.

[0007] The sampling component, located inside the reciprocating component, is used to break up the soil and take samples from it;

[0008] The sampling assembly includes a drill bit located below a hollow column. A rotating shaft is provided at the top of the drill bit, and a spiral blade is fitted on the outer wall of the rotating shaft. The spiral blade is used to transport soil, and the diameter of the drill bit is larger than the diameter of the spiral blade.

[0009] Preferably, the top outer wall of the rotating shaft is provided with a cylinder, the bottom of the cylinder is provided with a sampling tube, the spiral blade is located inside the sampling tube, and there is a gap between it and the inner wall.

[0010] Preferably, the reciprocating assembly includes a vertical plate, a top plate is provided on the top of the vertical plate, a fixed shaft is provided on the inner side of the top plate, and a frustum is provided at the bottom of the fixed shaft.

[0011] Preferably, the frustum is located on the top inner wall of the spiral column, the spiral column is located inside the hollow column, and the outer walls at both ends of the spiral column are provided with rings.

[0012] Preferably, the ring corresponds to the annular groove on the inner wall of the hollow column, and the inner wall of the hollow column is provided with a vertical groove for guiding the guide post, which is located on the outer wall of the cylinder.

[0013] Preferably, the hollow column has a handle symmetrically arranged on the outer wall of the top, a base plate arranged on the outer wall of the bottom, and a fixing rod arranged on the inner side of both ends of the base plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This geological survey sampling device replaces manual excavation with mechanical transmission of reciprocating components, improving sampling efficiency and reducing physical exertion in hard strata. The combination of the drill bit pre-breaking channel and the spiral blade conveyor enables the collection of soil debris, and the sample stratification in the sampling tube is consistent with the original soil deposition sequence, ensuring the accuracy of analysis. The overall structure is simple and can be operated by a single person. It is suitable for geological survey scenarios with complex terrain in the field. The collaborative design of the reciprocating components and sampling components improves the efficiency of geological sampling. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a plan view of the present invention;

[0018] Figure 3 This is a partial cross-sectional schematic diagram of the present invention;

[0019] Figure 4 This is a cross-sectional schematic diagram of the reciprocating component of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the sampling component of this utility model.

[0021] In the diagram: 1. Hollow column; 101. Handle; 102. Fixing rod; 103. Base plate; 2. Sampling assembly; 201. Helical blade; 202. Drill bit; 203. Rotating shaft; 204. Cylinder; 205. Sampling tube; 3. Reciprocating assembly; 301. Vertical plate; 302. Top plate; 303. Guide post; 304. Helical column; 305. Vertical groove; 306. Ring; 307. Fixing shaft; 308. Frustum. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only for descriptive distinction and should not be construed as indicating or implying relative importance. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known device such as a computer that provides control.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figures 1-5 As shown, this utility model provides a technical solution: a sampling device for geological surveys, including a hollow column 1, which is a cylindrical 204 hollow structure serving as the supporting frame of the device. Two handles 101 are symmetrically welded to the top of the hollow column 1. The surface of the handles 101 is textured with anti-slip patterns to facilitate hand gripping and stabilize the device. A base plate 103 is fixedly mounted on the bottom outer wall of the hollow column 101. Fixing rods 102 on both sides of the base plate 103 can be inserted into the ground to enhance the overall stability during sampling. The inner wall of the hollow column 1 is processed... There are annular grooves and vertical grooves 305. The annular groove is used to cooperate with the ring 306 of the reciprocating component 3. The vertical groove 305 extends axially and slides with the guide post 303 on the outer wall of the cylinder 204 to restrict the rotational freedom of the sampling component 2 and only allow it to move axially. The reciprocating component 3 is set inside the hollow column 1 and is used to drive the drill bit 202 to move up and down, so that the drill bit 202 enters the soil and controls the sampling depth. The sampling component 2 is set inside the reciprocating component 3 and is used to break the soil and sample it.

[0026] like Figures 1-5As shown in the embodiment of this application, the sampling component 2 includes a drill bit 202 located below the hollow column 1. A rotating shaft 203 is provided at the top of the drill bit 202, and a spiral blade 201 is sleeved on the outer wall of the rotating shaft 203. The spiral blade 201 is used to transport soil, and the diameter of the drill bit 202 is larger than the diameter of the spiral blade 201. A cylinder 204 is provided on the top outer wall of the rotating shaft 203, and a sampling cylinder 205 is provided at the bottom of the cylinder 204. The spiral blade 201 is located inside the sampling cylinder 205 and has a gap with its inner wall. Specifically, the drill bit 202 and the rotating shaft 203 are fixedly connected, and the diameter of the drill bit 202 is larger than the diameter of the sampling cylinder 205. To ensure that the soil channel broken by the drill bit 202 is larger than that of the sampling tube 205, reducing its downward resistance, the top of the rotating shaft 203 is rotatably connected to the cylinder 204. The spiral blade 201 is sleeved on the outer wall of the rotating shaft 203 and located inside the sampling tube 205. The sampling tube 205 is fixed at the bottom of the cylinder 204 and concentric with the rotating shaft 203. A 2-3mm gap is maintained between the spiral blade 201 and the inner wall of the sampling tube 205. During the sampling operation, the motor drives the rotating shaft 203 to rotate. During the rotation of the rotating shaft 203, the spiral blade 201 and the drill bit 202 are rotated, thereby sampling the soil. The sampling tube 205 moves vertically downward with the cylinder 204.

[0027] like Figures 1-5 As shown in the embodiments of this application, during soil sampling, since the diameter of the drill bit 202 is larger than that of the sampling cylinder 205, the drill bit 202 first breaks the soil to form a channel when it rotates. This channel can reduce the soil resistance when the sampling cylinder 205 descends, and avoid jamming caused by direct friction between the outer wall of the sampling cylinder 205 and the unbroken soil. The broken soil debris is pushed upwards by the spiral structure of the drill bit 202, forming a debris layer of a certain height, which provides a material source for the spiral blades 201. While the drill bit 202 rotates, the rotating shaft 203 drives the spiral blades 201. The blades rotate synchronously, with a 2-3mm gap between the blade edge and the inner wall of the sampling cylinder 205 to ensure that debris does not leak out from the gap. When the blades rotate, the helical surface of the bottom blades cuts into the debris layer, generating an upward thrust that conveys the debris upward along the inner wall of the sampling cylinder 205. The conveying speed is positively correlated with the blade rotation speed. The soil debris conveyed into the sampling cylinder 205 forms a layered accumulation inside the cylinder due to the continuous pushing of subsequent debris. After sampling is completed, the sampling cylinder 205 is pulled out of the soil, and the rotating shaft 203 is rotated in the opposite direction. The helical blades 201 generate a downward thrust that can push out the soil debris inside the cylinder.

[0028] like Figures 1-5As shown in the embodiment of this application, the reciprocating component 3 includes a vertical plate 301, a top plate 302 is provided on the top of the vertical plate 301, a fixed shaft 307 is provided on the inner side of the top plate 302, and a frustum 308 is provided at the bottom of the fixed shaft 307. Specifically, the vertical plate 301 is vertically fixed to the outer side of the top of the hollow column 1, the top plate 302 is horizontally connected to the top of the vertical plate 301, the fixed shaft 307 passes through the center of the top plate 302, and its bottom is fixedly connected to the frustum 308. When the motor is started, the motor will drive the fixed shaft 307 to rotate, and at the same time as the fixed shaft 307 rotates, it will also drive the frustum 308 to rotate.

[0029] like Figures 1-5 As shown in the embodiment of this application, the frustum 308 is located on the top inner wall of the spiral column 304, which is located inside the hollow column 1. The outer walls at both ends of the spiral column 304 are provided with rings 306. Specifically, the frustum 308 is embedded in the top inner wall of the spiral column 304 and fixedly connected to it. The frustum 308 has a circular hole for ventilation and heat dissipation of the motor below it. The outer wall of the spiral column 304 is in contact with the inner wall of the hollow column 1, meaning the outer wall of the spiral column 304 is close to the inner wall of the hollow column 1. The upper and lower ends of the hollow column 1 are adjacent to the spiral column 304. 04 was sealed to prevent it from detaching from the hollow column 1. The spiral column 304 is obtained by scanning and cutting the spiral lines of a hollow column. The outer wall of the spiral column 304 is symmetrically provided with annular rings 306 and is fixedly connected to the spiral column 304. The annular rings 306 rotate with the annular groove on the inner wall of the hollow column 1, and the spiral column 304 is supported on the inner wall of the hollow column 1 by the action of the annular rings 306. During the rotation of the frustum 308, the spiral column 304 can be driven to rotate synchronously. During the rotation of the spiral column 304, the annular rings 306 rotate around the annular groove.

[0030] like Figures 1-5 As shown in the embodiment of this application, the annular ring 306 corresponds to the annular groove on the inner wall of the hollow column 1. The inner wall of the hollow column 1 is provided with a vertical groove 305, which is used to guide the guide post 303. The guide post 303 is located on the outer wall of the cylinder 204. Specifically, the vertical groove 305 cooperates with the guide post 303. When the spiral column 304 rotates, it can push the guide post 303 to move along the spiral groove on the spiral column 304. However, the guide post 303 is also restricted by the vertical groove 305. Therefore, during the rotation of the spiral column 304, it can push the guide post 303 on the outer wall of the cylinder 204 to move up and down along the vertical groove 305.

[0031] The working principle of this utility model is as follows:

[0032] First, using the fixing rod 102 and the base plate 103, the device is initially positioned in the sampling area. The worker holds the handle 101 and starts the motor to drive the rotating shaft 203 to rotate. During the rotation of the rotating shaft 203, the soil is cut and broken. After the base plate 103 is in contact with the ground, the fixing rod 102 is inserted again to complete the positioning operation of the device.

[0033] With a simple start, two sets of motors are activated, which drive the rotating shaft 203 and the fixed shaft 307 to rotate respectively. The fixed shaft 307 synchronously drives the frustum 308 to rotate. The frustum 308 is fixedly connected to the inner wall of the spiral column 304, which drives the spiral column 304 to rotate. During the rotation of the spiral column 304, it generates a thrust on the guide column 303, thereby driving the guide column 303 to translate along the vertical groove 305 on the inner wall of the hollow column 1, and then driving the cylinder 204 and the sampling cylinder 205 at its bottom to descend.

[0034] As the sampling cylinder 205 descends, another motor drives the rotating shaft 203 to rotate. During the rotation of the rotating shaft 203, the spiral blade 201 and the drill bit 202 will rotate. Under the thrust of the reciprocating assembly 3, the drill bit 202 is displaced into the soil. The soil debris broken by the drill bit 202 is transported upward into the sampling cylinder 205 through the spiral surface of the spiral blade 201.

[0035] Finally, the fixed shaft 307 is rotated in the opposite direction, and the reciprocating component 3 drives the sampling component 2 to rise, so that the drill bit 202 and the sampling cylinder 205 are separated from the soil, and the sampling is completed.

[0036] In summary, this utility model discloses a sampling device for geological surveys, including a hollow column 1, a reciprocating assembly 3 disposed inside the hollow column 1, used to drive the drill bit 202 to move up and down, causing the drill bit 202 to enter the soil and control the sampling depth, and a sampling assembly 2 disposed inside the reciprocating assembly 3, used to break the soil and collect samples. This utility model improves the efficiency of force sampling by replacing manual digging with the mechanical transmission of the reciprocating assembly 3, and reduces the physical exertion in hard strata. The pre-breaking channel of the drill bit 202 is combined with the conveying of the spiral blade 201 to collect soil debris, and the sample stratification in the sampling tube 205 is consistent with the original sedimentary sequence of the soil, ensuring the accuracy of analysis. The overall structure is simple, can be operated by a single person, and is suitable for geological survey scenarios in complex terrain. The collaborative design of the reciprocating assembly 3 and the sampling assembly 2 improves the efficiency of geological sampling.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A sampling device for geological surveys, comprising: Hollow column, characterized in that: The reciprocating component, located inside the hollow column, is used to drive the drill bit to move up and down, prompting the drill bit to enter the soil and control the sampling depth. The sampling component, located inside the reciprocating component, is used to break up the soil and take samples from it; The sampling assembly includes a drill bit located below a hollow column. A rotating shaft is provided at the top of the drill bit, and a spiral blade is fitted on the outer wall of the rotating shaft. The spiral blade is used to transport soil, and the diameter of the drill bit is larger than the diameter of the spiral blade.

2. The sampling device for geological surveys according to claim 1, characterized in that: A cylinder is provided on the top outer wall of the rotating shaft, and a sampling tube is provided at the bottom of the cylinder. The spiral blade is located inside the sampling tube and there is a gap between it and the inner wall.

3. A sampling device for geological surveys according to claim 1, characterized in that: The reciprocating assembly includes a vertical plate, a top plate at the top of the vertical plate, a fixed shaft on the inner side of the top plate, and a frustum at the bottom of the fixed shaft.

4. A sampling device for geological surveys according to claim 3, characterized in that: The truncated cone is located on the inner top wall of the spiral column, which is located inside a hollow column, and the outer walls at both ends of the spiral column are provided with rings.

5. A sampling device for geological surveys according to claim 4, characterized in that: The circular ring corresponds to the annular groove on the inner wall of the hollow column. The inner wall of the hollow column is provided with a vertical groove, which is used to guide the guide post, which is located on the outer wall of the cylinder.

6. A sampling device for geological surveys according to claim 5, characterized in that: The hollow column has a handle symmetrically arranged on the outer wall of the top part, and a base plate is arranged on the outer wall of the bottom part. Fixing rods are arranged on the inner sides of both ends of the base plate.

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