Exploration drill bit for detecting strength of expansive soil

Abstract

The utility model discloses an exploring drill bit for detecting the strength of expansive soil, which comprises a mounting rack, a rotatable drill bit body arranged in the mounting rack, a base arranged at the top of the drill bit body, a pluggable concave block arranged at the top of the base, and an electric push rod arranged at the top of the inner wall of the mounting rack, a pressure sensor is mounted at the bottom end of the electric push rod through a mounting block, and a movable plate is mounted at the bottom of the pressure sensor. The drill bit body drives the soil humidity sensor to move into soil, the soil humidity sensor detects the humidity of the soil, the strength and stability of the soil are indirectly reflected through the humidity change, and meanwhile the pressure sensor senses the pressure generated when the drill bit body moves downwards. Therefore, the strength of different soils can be further reflected, and the strength of the expansive soil can be conveniently detected.

Description

Technical Field

[0001] The utility model relates to the technical field of exploration drill bits, in particular to an exploration drill bit for detecting the strength of expansive soil. Background Technique

[0002] Land exploration: It is an investigation and research activity that uses various means and methods to explore and detect the geology, determine the appropriate bearing stratum, determine the foundation type according to the bearing capacity of the foundation of the bearing stratum, and calculate the foundation parameters. In order to detect the strength of expansive soil, an exploration drill bit is needed.

[0003] According to the application number: CN202222221509.1, a geothermal exploration drill bit with sample collection ability includes a positioning seat, a top seat, an auxiliary rod, a threaded rod and a drill bit body. The outer surface of the bottom end of the positioning seat is symmetrically provided with positioning rods. One side of the outer surface of the top end of the positioning seat is parallel to the top seat. An auxiliary rod and a threaded rod are respectively longitudinally arranged between the two side edges of the bottom end of the top seat and the two side edges of the top end of the positioning seat.

[0004] The exploration drill bit in the above case can only take out the soil and then detect the strength through instruments, which seriously affects the work efficiency. At the same time, the exploration drill bit is not convenient to be disassembled from the exploration equipment for maintenance, reducing the flexibility during use. For this reason, we provide an exploration drill bit for detecting the strength of expansive soil. Content of the Utility Model

[0005] The purpose of the utility model is to provide an exploration drill bit for detecting the strength of expansive soil to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: An exploration drill bit for detecting the strength of expansive soil, characterized in that: it includes a mounting frame, and a drill bit body rotatable inside the mounting frame. A base is installed at the top of the drill bit body, and a pluggable concave block is installed at the top of the base. It also includes an electric push rod, which is installed at the top of the inner wall of the mounting frame. The bottom end of the electric push rod is installed with a pressure sensor through a mounting block. A movable plate is installed at the bottom of the pressure sensor, and a servo motor is installed at the bottom of the movable plate. The bottom end of the output shaft of the servo motor is installed with a rotating block. It also includes a fixing groove, which is opened at the bottom left side of the drill bit body. A soil humidity sensor is installed on the left side of the inner wall of the fixing groove, and a wireless signal transmission module is installed on the right side of the inner wall of the fixing groove. Slots are opened on both the left and right sides of the top of the concave block. At the position corresponding to the slots at the bottom of the rotating block, there are inserted blocks. The bottom of the inserted block penetrates through the slot and extends into it to contact the inner wall of the slot. A chute is opened at the bottom of the inner wall of the concave block. The left and right sides of the inner wall of the chute are fixedly connected by sliding rods. The surfaces of the sliding rods are respectively in sliding contact with a moving block and an adjusting block. The bottom of the moving block penetrates through the chute and extends to the outside of it. An active block is installed at the bottom of the adjusting block. The left side of the active block penetrates through the moving block and extends to the outside of it. Connecting blocks are installed on the sides of the moving block and the adjusting block away from each other. The side of the connecting block close to the slot penetrates through the slot and extends into it. Sliding blocks are installed on the sides of the two connecting blocks away from each other. A clamping block is installed on the side of the sliding block away from the connecting block. A clamping groove adapted to the clamping block is opened on the side of the inserted block close to the clamping block.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0008] 1. The present utility model drives the soil humidity sensor into the soil by the drill bit body, detects the humidity of the soil through the soil humidity sensor, indirectly reflects the strength and stability of the soil through the humidity change, and at the same time senses the pressure generated when the drill bit body moves downward through the pressure sensor, so as to further reflect the strength between different soils, which is convenient for detecting the strength of expansive soil.

[0009] 2. The present utility model is conveniently disassembled from the exploration equipment for maintenance through the mutual cooperation of the slot, the inserted block, the chute, the sliding rod, the moving block, the adjusting block, the active block, the connecting block, the sliding block, the clamping block and the clamping groove, improving the flexibility during use. Description of the Drawings

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0011] Figure 2It is a structural sectional view of the front view of the utility model;

[0012] Figure 3 It is a three-dimensional structural schematic diagram of the drill bit body, base, concave block, moving block, movable block and fastening bolt of the utility model;

[0013] Figure 4 It is a three-dimensional structural schematic diagram of the moving block, movable block and fastening bolt of the utility model;

[0014] Figure 5 It is a structural sectional view of the front view of the base, concave block, second battery, clamping block and clamping groove of the utility model.

[0015] In the figure: 1 mounting frame, 2 drill bit body, 3 base, 4 concave block, 5 electric push rod, 6 mounting block, 7 pressure sensor, 8 movable plate, 9 servo motor, 10 rotating block, 11 fixed groove, 12 soil humidity sensor, 13 wireless signal transmission module, 14 first battery, 15 second battery, 16 slot, 17 plug block, 18 sliding groove, 19 sliding rod, 20 moving block, 21 adjusting block, 22 movable block, 23 connecting block, 24 sliding block, 25 clamping block, 26 clamping groove, 27 fastening bolt, 28 positioning seat, 29 inserting rod, 30 fixing plate, 31 through groove. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-5 , an exploration drill bit for detecting the strength of expansive soil, including a mounting frame 1 and a rotatable drill bit body 2 arranged inside the mounting frame 1. The top of the drill bit body 2 is fixedly connected with a base 3, and the top of the base 3 is fixedly connected with a pluggable concave block 4.

[0018] Furthermore, a microcomputer is fixedly connected to the left side of the mounting frame 1, a fixing plate 30 is fixedly connected to the inner wall of the mounting frame 1, a through groove 31 is opened at the top of the fixing plate 30, and the bottom end of the drill bit body 2 penetrates through the through groove 31 and extends to the outside thereof.

[0019] It further includes an electric push rod 5. The electric push rod 5 is installed at the top of the inner wall of the mounting frame 1. The bottom end of the electric push rod 5 is fixedly connected with a pressure sensor 7 through a mounting block 6. The bottom of the pressure sensor 7 is fixedly connected with a movable plate 8, and the bottom of the movable plate 8 is fixedly connected with a servo motor 9. The bottom end of the output shaft of the servo motor 9 is fixedly connected with a rotating block 10.

[0020] It further includes a fixing groove 11 which is opened at the bottom on the left side of the drill bit body 2. The left side of the inner wall of the fixing groove 11 is fixedly connected with a soil humidity sensor 12. The left side of the soil humidity sensor 12 is fixedly connected with a probe. The model of the soil humidity sensor 12 is JXBS-3001-TH. The right side of the inner wall of the fixing groove 11 is fixedly connected with a wireless signal transmission module 13.

[0021] Furthermore, detecting soil humidity will affect the compactness and plasticity of the soil, and these characteristics are related to the strength of the soil.

[0022] Furthermore, the top of the inner wall of the fixing groove 11 is fixedly connected with a first storage battery 14, and the top of the base 3 is fixedly connected with a second storage battery 15. The second storage battery 15 and the first storage battery 14 are connected by a wire. The wire on the left side of the second storage battery 15 penetrates through the concave block 4 and extends into its interior. When the power of the second storage battery 15 and the first storage battery 14 is exhausted, the second storage battery 15 and the first storage battery 14 are charged through the wire on the second storage battery 15. The second storage battery 15 and the first storage battery 14 supply power to the soil humidity sensor 12 and the wireless signal transmission module 13.

[0023] Furthermore, the electric push rod 5, the pressure sensor 7, the servo motor 9, the soil humidity sensor 12 and the wireless signal transmission module 13 are respectively electrically connected to the microcomputer. The soil humidity sensor 12 transmits the detection signal to the microcomputer through the wireless signal transmission module 13.

[0024] The drill bit body 2 drives the soil humidity sensor 12 to move into the soil. The soil humidity sensor 12 detects the humidity of the soil. The strength and stability of the soil are indirectly reflected through the humidity change. At the same time, the pressure sensor 7 senses the pressure generated when the drill bit body 2 moves downward, so as to further reflect the strength between different soils, which is convenient for detecting the strength of expansive soil.

[0025] On the left and right sides of the top of the concave block 4, slots 16 are provided. At the bottom of the rotating block 10 and corresponding to the positions of the slots 16, inserting blocks 17 are fixedly connected. The bottom of the inserting block 17 penetrates through the slot 16 and extends into its interior to be in contact with the inner wall of the slot 16. At the bottom of the inner wall of the concave block 4, a sliding groove 18 is provided. The left and right sides of the inner wall of the sliding groove 18 are fixedly connected by sliding rods 19. The surfaces of the sliding rods 19 are respectively in sliding contact with a moving block 20 and an adjusting block 21. The bottom of the moving block 20 penetrates through the sliding groove 18 and extends to its outside. The bottom of the adjusting block 21 is fixedly connected with a movable block 22. The left side of the movable block 22 penetrates through the moving block 20 and extends to its outside. On the sides where the moving block 20 and the adjusting block 21 are away from each other, connecting blocks 23 are fixedly connected. The side of the connecting block 23 close to the slot 16 penetrates through the slot 16 and extends into its interior. On the sides where the two connecting blocks 23 are away from each other, sliding blocks 24 are fixedly connected. The side of the sliding block 24 close to the inner wall of the slot 16 is in sliding contact with the inner wall of the slot 16. The side of the sliding block 24 away from the connecting block 23 is fixedly connected with a clamping block 25. On the side of the inserting block 17 close to the clamping block 25, a clamping groove 26 adapted to the clamping block 25 is provided. The side of the clamping block 25 close to the clamping groove 26 penetrates through the clamping groove 26 and extends into its interior to be in contact with the inner wall of the clamping groove 26.

[0026] Further, on the front and back of the moving block 20, fastening bolts 27 threadedly connected with the movable block 22 are provided. By providing the fastening bolts 27, the stability when the moving block 20 and the movable block 22 are connected is improved, and further the stability of the inserting block 17 inserted into the slot 16 is improved.

[0027] Specifically, lay down the exploration equipment so that the head of the drill bit body 2 is in the front. Then loosen the fastening bolts 27, and then pull the moving block 20 to move to the right by hand and pull the movable block 22 to move to the left. Drive the clamping block 25 to move away from the clamping groove 26 through the connecting block 23, so that the clamping block 25 and the clamping groove 26 are separated. Then the drill bit body 2 can be pulled forward. The drill bit body 2 drives the concave block 4 to move forward through the base 3, so that the slot 16 and the inserting block 17 are separated, and it can pass through the through groove 31 to complete the disassembly.

[0028] Further, at the bottoms of the left and right sides of the mounting frame 1, positioning seats 28 are fixedly connected. On the top of the positioning seat 28, inserting rods 29 are provided. The bottom end of the inserting rod 29 penetrates through the positioning seat 28 and extends to its outside. By providing the positioning seat 28 and the inserting rod 29, the stability during the use of the exploration equipment is improved.

[0029] Through the mutual cooperation of the slot 16, the inserting block 17, the sliding groove 18, the sliding rod 19, the moving block 20, the adjusting block 21, the movable block 22, the connecting block 23, the sliding block 24, the clamping block 25 and the clamping groove 26, it is convenient to disassemble the exploration drill bit from the exploration equipment for maintenance, and the flexibility during use is improved.

[0030] In use, place the entire exploration equipment on the expansive soil, fix the entire equipment through the insertion rod 29, and then start the electric push rod 5 and the servo motor 9. The electric push rod 5 drives the movable plate 8 and the drill bit body 2 to move downward, and the servo motor 9 drives the drill bit body 2 to rotate. As a result, the drill bit body 2 rotates and moves downward into the expansive soil. When the soil strength is high, the downward movement speed of the drill bit body 2 will slow down, and the value sensed by the pressure sensor 7 fed back through the drill bit body 2 and the movable plate 8 will be large. When the soil strength is low, the downward movement speed of the drill bit body 2 is fast, and the value sensed by the pressure sensor 7 fed back through the drill bit body 2 and the movable plate 8 will be small. At the same time, the humidity of the soil is detected by the probe of the soil humidity sensor 12, and then the information is transmitted to the microcomputer, and the soil strength is calculated by the microcomputer.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exploration drill bit for detecting the strength of expansive soil, characterized in that: Comprising a mounting bracket (1), and a drill bit body (2) rotatably provided inside the mounting bracket (1), a base (3) is mounted on the top of the drill bit body (2), a pluggable concave block (4) is mounted on the top of the base (3), further comprising an electric push rod (5), the electric push rod (5) is mounted on the top of the inner wall of the mounting bracket (1), the bottom end of the electric push rod (5) is mounted with a pressure sensor (7) through a mounting block (6), a movable plate (8) is mounted on the bottom of the pressure sensor (7), a servo motor (9) is mounted on the bottom of the movable plate (8), the bottom end of the output shaft of the servo motor (9) is mounted with a rotating block (10), further comprising a fixing groove (11), the fixing groove (11) is opened at the bottom of the left side of the drill bit body (2), a soil humidity sensor (12) is mounted on the left side inner wall of the fixing groove (11), a wireless signal transmission module (13) is mounted on the right side inner wall of the fixing groove (11), slots (16) are opened on both the left and right sides of the top of the concave block (4), the bottom of the rotating block (10) and at positions corresponding to the slots (16) is mounted with insertion blocks (17), the bottom of the insertion blocks (17) penetrates through the slots (16) and extends into the inside thereof to be in contact with the inner walls of the slots (16), a sliding groove (18) is opened at the bottom of the inner wall of the concave block (4), the left and right sides of the inner wall of the sliding groove (18) are fixedly connected by sliding rods (19), the surfaces of the sliding rods (19) are respectively in sliding contact with a moving block (20) and an adjusting block (21), the bottom of the moving block (20) penetrates through the sliding groove (18) and extends to the outside thereof, the bottom of the adjusting block (21) is mounted with a movable block (22), the left side of the movable block (22) penetrates through the moving block (20) and extends to the outside thereof, connection blocks (23) are mounted on the sides of the moving block (20) and the adjusting block (21) away from each other, the sides of the connection blocks (23) close to the slots (16) penetrate through the slots (16) and extend into the inside thereof, sliding blocks (24) are mounted on the sides of the two connection blocks (23) away from each other, a clamping block (25) is mounted on the side of the sliding block (24) away from the connection block (23), a clamping groove (26) adapted to the clamping block (25) is opened on the side of the insertion block (17) close to the clamping block (25).

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