High-precision soil sampling instrument

Abstract

The utility model discloses a soil sampling high-precision instrument which comprises a sampling pipe, two ends of the sampling pipe are provided with a threaded joint and a threaded groove, an in-pipe mounting seat is arranged in the sampling pipe, one end of the sampling pipe is connected with a drill bit, a rotary groove is formed in the in-pipe mounting seat, a rotary storage disc is arranged on the rotary groove, and a rotary storage disc is arranged on the rotary storage disc. The rotary storage disc passes through a rotary control mechanism; the utility model relates to the technical field of soil sampling instruments, the high-precision soil sampling instrument adopts a mode of sampling while drilling, the sampling position is high in accuracy, the sampling equipment adopts the rotary storage disc controlled by the rotary control mechanism to carry out station switching, and the multi-station rotary storage disc is utilized to control a plurality of storage pipes to respectively carry out sampling, so that the sampling efficiency is improved. The feeding groove and the storage groove are matched, the sampling frequency is increased, sampling can be conducted in multiple times in the one-time well descending process, the sampling frequency of one-time well descending is increased, the structure is compact, the integration degree is high, and control is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling instruments, in particular to a high-precision soil sampling instrument. Background Art

[0002] In the process of modern mining and geological exploration, in order to better understand the strata, it is necessary to sample the soil of the strata and then analyze the soil. In the modern soil sampling and testing process, there are mainly two methods. One is to use surface soil, mostly in the form of manual sampling, using simple tools, and the other is to use mechanical equipment drilling, usually used for deeper bottom layers.

[0003] Mechanical equipment for sampling is usually adapted to a downhole detector. After the drill rod reaches the sampling position, the downhole detector contacts the stratum to collect soil. This equipment has high accuracy, but in application, this sampling instrument can only sample a single stratum at a time. In order to carry more samples, the sampling instrument often uses multiple series connections. As a result, the connection and maintenance of the equipment are complicated during the sampling process, and it occupies more space. In view of this, in-depth research was conducted on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a high-precision soil sampling instrument and solves the existing background technical problems.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a high-precision soil sampling instrument, comprising a sampling tube, threaded joints and threaded grooves are arranged at both ends of the sampling tube, an in-tube mounting seat is arranged in the sampling tube, a drill bit is connected to one end of the sampling tube, a rotary groove is opened in the in-tube mounting seat, a rotary storage disk is arranged on the rotary groove, and the rotary storage disk is controlled by a rotary control mechanism;

[0006] The rotary storage disk is provided with no less than four storage tubes in a ring array;

[0007] A sampling port is provided on one side of the tube mounting seat, a sampling tube is provided on the sampling port, the tube mouth of the sampling tube is docked with any storage tube, a guide groove is provided at the opening of the sampling tube, and a guide block is provided on the side of the rotary groove corresponding to the sampling port;

[0008] The rotary groove matches the outer diameter of the rotary storage disk, and the two sides of the tube mounting seat are provided with parallelly arranged supply grooves and placement grooves, and the supply grooves and placement grooves are respectively connected to the two sides of the rotary groove;

[0009] A spring reverse push control assembly is arranged in the supply slot, and the spring reverse push control assembly is composed of a long spring, a propulsion bar and a bottle filling port.

[0010] Preferably, one side of the in-tube mounting seat is closed by a closed ring plate matching the diameter of the sampling tube, and the closed ring plate is connected to the sampling tube by a plurality of screws.

[0011] Preferably, the tail end of the sampling tube is a blind end, and a control joint is provided at the tail end of the sampling tube.

[0012] Preferably, an electric control door is provided on the outer wall of the closed ring plate outside the sampling port for controlling the opening and closing of the sampling port.

[0013] Preferably, the rotation control mechanism comprises a control motor, a control motor is provided on one side of the rotation groove, an intermittent groove wheel is connected to one side of the control motor, and a central axis of the intermittent groove wheel is linked to the rotation storage disk.

[0014] Preferably, the indexing angle of the intermittent groove wheel is the same as the angle between adjacent storage tubes of the rotary storage disk.

[0015] The utility model provides a high-precision soil sampling instrument. It has the following beneficial effects: the high-precision soil sampling instrument adopts a sampling while drilling method, the sampling position is accurate and accurate, the sampling device adopts a rotary storage disc controlled by a rotary control mechanism to switch the workstation, and uses a multi-position rotary storage disc to control multiple storage tubes to sample separately, cooperates with the supply slot and the storage slot, increases the number of sampling, so that in the process of going down the well once, the sampling can be divided into multiple times, and the number of sampling in a single well is increased. The structure is compact, the integration is high, and the control is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main stereoscopic blasting structure of the high-precision soil sampling instrument described in the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the high-precision soil sampling instrument of the utility model.

[0018] Figure 3 It is a rear-view stereoscopic blasting structure schematic diagram of the high-precision soil sampling instrument described in the utility model.

[0019] In the figure: 1. sampling tube; 2. mounting seat in the tube; 3. rotating groove; 4. rotating storage disk; 5. storage tube; 6. sampling tube; 7. sampling port; 8. supply slot; 9. placement slot; 10. spring reverse thrust control assembly; 11. closed ring plate; 12. control joint; 13. electric control door; 14. control motor; 15. intermittent groove wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a method for sampling underground soil in the process of modern geological ore layer inspection and detection. At present, sampling is mostly carried out by drilling instruments. This method has high sampling precision and accurate sampling. However, the current drilling sampling instruments are mostly single-chamber structures. In order to collect more stratum soil samples, it is often necessary to arrange multiple drilling sampling instruments. This method has the problems of complex equipment and inconvenient maintenance and use during the sampling process.

[0022] Therefore, in view of the above problems, the present application discloses a high-precision soil sampling instrument. The sampling tube 1 is connected to the drill rod and the drill bit, and serves as a carrier of the sampling instrument. Both ends of the sampling tube 1 are provided with threaded joints and threaded grooves for connecting the drill rod and the drill bit. The sampling tube 1 enters the sampling depth along with the drill bit.

[0023] Furthermore, an in-tube mounting seat 2 is provided in the sampling tube 1. The in-tube mounting seat 2 is a specific space for performing sampling operations. A rotary groove 3 is provided in the in-tube mounting seat 2. A rotary storage disk 4 is assembled through the rotary groove 3. The rotary storage disk 4 is controlled to rotate by a rotary control mechanism. No less than four storage tubes 5 are arranged in a circular array on the rotary storage disk 4. The rotary control mechanism can control the storage tubes 5 to switch between different workstations. Samples are stored through the multi-configured storage tubes 5. When sampling is completed in one storage tube 5, it can be switched to another storage tube 5 to continue sampling.

[0024] Furthermore, a sampling port 7 is provided on one side of the tube mounting seat 2, and a sampling tube 6 is provided on the sampling port 7. The tube mouth of the sampling tube 6 is docked with any storage tube 5, and a guide groove is provided at the opening of the sampling tube 6. A guide block is provided on the side of the rotary groove 3 corresponding to the sampling port 7. When sampling, the rotary storage disk 4 is rotated to the corresponding position by the rotary control mechanism, and the sampling tube 6 is inserted into the tube mouth of the sampling tube 6 along the guide groove by the guidance of the guide block. The tube mouth of the storage tube 5 is guided by the guide groove so that the storage tube 5 can be docked with the sampling tube 6 smoothly. As the sampling tube 6 is opened, the external soil enters the storage tube 5 through the sampling tube 6 under the action of pressure;

[0025] According to the instruction manual Figure 1-3It can be seen that the outer diameter of the above-mentioned rotary groove 3 matches that of the rotary storage disk 4, which ensures stability. In order to further expand the number of samples, parallel supply grooves 8 and placement grooves 9 are provided on both sides of the tube mounting seat 2. The supply grooves 8 and placement grooves 9 are respectively connected to the two sides of the rotary groove 3. A plurality of spare storage tubes 5 are installed in a unidirectional array in the supply groove 8. After sampling, the storage tube 5 is placed in the placement groove 9 by turning for storage. The supply groove 8 and the placement groove 9 correspond to the placement positions of a storage tube 5 of the rotary groove 3 respectively. When the rotary storage disk 4 rotates to the corresponding placement groove 9, the storage tube 5 falls into the storage position under the action of gravity. At this time, the position of the rotary storage disk 4 will be vacant, and as the rotary storage disk 4 rotates, the rotary storage disk 4 will enter the corresponding supply groove 8 position, and the storage tube 5 in the supply groove 8 will reach the corresponding position due to gravity or thrust.

[0026] Furthermore, in order to ensure stable supply, a spring reverse thrust control assembly is installed in the supply groove 8. The spring reverse thrust control assembly 10 is composed of a long spring, a propulsion bar and a bottling port. The bottling port corresponds to a certain station stop position of the rotary storage disk 4. The propulsion bar is pushed by the long spring to contact the uppermost storage tube 5 of the multiple storage tubes 5, and the pushing action of the long spring is used to keep the storage tube 5 with a tendency to move downward.

[0027] As a preferred solution, further, one side of the in-tube mounting seat 2 is closed by a closed ring plate 11 that matches the diameter of the sampling tube 1. The closed ring plate 11 is connected to the sampling tube 1 by a number of screws. The closed ring plate 11 not only seals the in-tube mounting seat 2, but also protects the internal workpiece. When taking out the sample, the closed ring plate 11 can be disassembled.

[0028] As a preferred solution, further, the tail end of the sampling tube 1 is a blind end, and a control connector 12 is provided at the tail end of the sampling tube 1, and the control connector 12 is used to connect a control data cable.

[0029] As a preferred solution, further, an outer wall of the closed ring plate 11 is provided with an electric control door 13 outside the sampling port 7 for controlling the opening and closing of the sampling port 7 .

[0030] As a preferred solution, further, the rotation control mechanism includes a control motor 14, a control motor 14 is provided on one side of the rotation groove 3, an intermittent groove wheel 15 is connected to one side of the control motor 14, the central axis of the intermittent groove wheel 15 is linked with the rotary storage disk 4, the intermittent groove wheel 15 can be rotated by rotating the control motor 14, and the intermittent groove wheel 15 is linked with the rotary storage disk 4, so that when the intermittent groove wheel 15 rotates, it will also drive the rotary storage disk 4 to move, and the indexing angle of the intermittent groove wheel 15 is the same as the angle between the storage tubes 5 adjacent to the rotary storage disk 4.

[0031] From the above, it can be generally known that the high-precision soil sampling instrument adopts the method of sampling while drilling, and the sampling position is accurate and precise. The sampling equipment adopts a rotary storage disc controlled by a rotary control mechanism to switch the workstations, and uses a multi-station rotary storage disc to control multiple storage tubes 5 for sampling respectively. The supply slot 8 and the storage slot are coordinated to increase the number of samplings, so that in the process of going down the well once, the sampling can be divided into multiple times, which increases the number of samplings in a single going down the well. The structure is compact, the integration is high, and the control is convenient.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision soil sampling instrument, comprising a sampling tube (1), wherein both ends of the sampling tube (1) are provided with threaded joints and threaded grooves, an inner tube mounting seat (2) is provided inside the sampling tube (1), and one end of the sampling tube (1) is connected to a drill bit, characterized in that: A rotation groove (3) is provided in the in-tube mounting seat (2), a rotation storage disk (4) is provided on the rotation groove (3), and the rotation storage disk (4) is controlled by a rotation control mechanism; No less than four storage tubes (5) are arranged in a ring array on the rotary storage disk (4); A sampling port (7) is provided on one side of the in-tube mounting seat (2), a sampling tube (6) is provided on the sampling port (7), the tube mouth of the sampling tube (6) is butted with any storage tube (5), a guide groove is provided at the opening of the sampling tube (6), and a guide block is provided on the side of the rotary groove (3) corresponding to the sampling port (7); The rotary groove (3) matches the outer diameter of the rotary storage disk (4), and the two sides of the in-tube mounting seat (2) are provided with parallelly arranged supply grooves (8) and placement grooves (9), and the supply grooves (8) and placement grooves (9) are respectively connected to the two sides of the rotary groove (3); A spring reverse push control assembly is installed in the supply groove (8), and the spring reverse push control assembly (10) is composed of a long spring, a propulsion bar and a bottle filling port.

2. The high-precision soil sampling instrument according to claim 1, characterized in that: One side of the in-tube mounting seat (2) is closed by a closed ring plate (11) matching the diameter of the sampling tube (1), and the closed ring plate (11) is connected to the sampling tube (1) by a plurality of screws.

3. The high-precision soil sampling instrument according to claim 2, characterized in that: The tail end of the sampling tube (1) is a blind end, and a control joint (12) is provided at the tail end of the sampling tube (1).

4. The high-precision soil sampling instrument according to claim 3, characterized in that: An electric control door (13) is provided on the outer wall of the closed ring plate (11) outside the sampling port (7) for controlling the opening and closing of the sampling port (7).

5. The high-precision soil sampling instrument according to claim 4, characterized in that: The rotation control mechanism comprises a control motor (14), one side of the rotation groove (3) is provided with the control motor (14), one side of the control motor (14) is connected to an intermittent groove wheel (15), and the central axis of the intermittent groove wheel (15) is linked to the rotation storage disk (4).

6. The high-precision soil sampling instrument according to claim 5, characterized in that: The indexing angle of the intermittent groove wheel (15) is the same as the angle between adjacent storage tubes (5) of the rotary storage disk (4).

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