Drill bit size measuring device for marine geological survey

Abstract

The invention relates to the technical field of drill bit size measurement, in particular to a drill bit size measuring device for marine geological survey, which comprises a measuring table and a measuring mechanism arranged at the top end of the measuring table and used for automatically measuring and exploring the overall dimension of an inner hole of a drill bit, the top end of the measuring table is in bolted connection with a placing table, and the top of the placing table is fixedly connected with a V-shaped block. A pair of conveying plates is fixedly connected to the top end of the measuring table and located between the containing table and the measuring mechanism, a conveying mechanism used for conveying measured drill bits is arranged between the conveying plates, a side plate is obliquely and fixedly connected to the top of the measuring table and away from one side of the measuring mechanism, and a storage frame used for storing the drill bits is arranged on the side wall of the side plate. Through the arrangement of the structure, a plurality of exploration drill bits can be automatically fed and discharged, the exploration drill bits are fixed to the V-shaped blocks, the stability in the measurement process is ensured, measurement personnel do not need to frequently operate and place the drill bits, and the measurement convenience performance of the device is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drill bit size measurement, and particularly to a drill bit size measurement device for marine geological exploration. Background Art

[0002] Marine engineering geological exploration refers to geological exploration carried out for the purpose of marine engineering construction. The main working scope is in shallow sea areas. Through a large number of geophysical prospecting, underwater drilling, seabed sampling, in-situ testing and other means, a comprehensive analysis is carried out on the physical and mechanical properties of underwater sediments, the material composition, and the distribution of underwater landslides, etc., to ensure the safety of marine engineering. Since the inner hole contour size of the exploration drill bit affects the actual position and attitude of the drill tool and is crucial for the accurate exploration of marine geology, during the production and manufacturing process of the exploration drill bit, it is necessary to measure multiple dimensions of the inner contour of the drill bit to reduce the exploration error caused by deviation.

[0003] In the prior art, a drill bit size measurement device for marine geological exploration with the publication number of CN115808143B accommodates the drill bit through a measuring cylinder, drives the measuring cylinder to tilt through a connecting seat, drives the measuring cylinder to swing through a second driving motor, so that the drill bit can be arranged along the length direction of the measuring cylinder, presses down on the length and diameter of the drill bit through a measuring plate, measures the length and diameter of the drill bit. The measurement process does not require manual participation, has high measurement efficiency and small measurement error, and can greatly improve the measurement efficiency of the drill bit.

[0004] Although the above device can automatically measure the exploration drill bit, there are still some defects in the actual measurement process. Since the size measurement device lacks an automatic feeding function, after each measurement, the measurement personnel need to place the drill bit to be measured on the measuring table, which is not only time-consuming and laborious, but also greatly reduces the detection efficiency of the device.

[0005] Therefore, a drill bit size measurement device for marine geological exploration is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to propose a drill bit size measurement device for marine geological exploration to solve the deficiencies in the background art.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A drill bit size measuring device for marine geological exploration, comprising a measuring table, and a measuring mechanism arranged at the top of the measuring table for automatically measuring the inner hole contour size of an exploration drill bit. A placing table is bolted to the top of the measuring table, and a V-shaped block is fixedly connected to the top of the placing table. A pair of conveying plates are fixedly connected to the top of the measuring table and located between the placing table and the measuring mechanism. A conveying mechanism for conveying the measured drill bits is arranged between the conveying plates. A side plate is obliquely and fixedly connected to the top of the measuring table and away from the measuring mechanism side, and a storage frame for storing drill bits is arranged on the side wall of the side plate; An L-shaped plate is fixedly connected to the top of the measuring table and located at the rear of the placing table. A sliding plate is slidably connected to the bottom of the L-shaped plate and above the storage frame. A push plate for pushing the drill bit out of the storage frame is obliquely arranged at the bottom of the sliding plate. An outlet is formed on one side of the storage frame close to the placing table. An electric telescopic cylinder is fixedly connected to the top of the L-shaped plate. A pair of horizontal grooves are formed on the top of the L-shaped plate. Connecting rods are fixedly connected to the top ends of the sliding plate and located in the horizontal grooves. Straight plates are fixedly connected to the tops of the connecting rods. A rear plate is fixedly connected to the side wall of one of the straight plates. The output end of the electric telescopic cylinder is fixedly connected to the side wall of the rear plate. A positioning mechanism for pressing the drill bit in the V-shaped block is arranged on the L-shaped plate.

[0008] In the above technical solution, further, the inclination angle of the side plate is the same as that of the inner side of the V-shaped block, and the inclination angle of the rear side of the storage frame is the same as that of the side plate. A side port adapted to the push plate is formed on one side of the storage frame away from the outlet. A shielding plate is fixedly connected to the side wall of the push plate. A supporting mechanism for supporting the storage frame is arranged on the measuring table.

[0009] In the above technical solution, further, the supporting mechanism includes a pair of supporting cylinders, and the supporting cylinders are both obliquely and fixedly connected to the top of the measuring table. A pair of supporting rods are fixedly connected to the bottom of the storage frame, and the supporting rods are both slidably connected to the inner sides of the supporting cylinders. A supporting spring is fixedly connected between the inner side of the supporting cylinder and the side wall of the supporting rod.

[0010] In the above technical solution, further, the positioning mechanism includes a positioning block. A pair of positioning plates are slidably connected through the top of the L-shaped plate and above the V-shaped block. A top plate is fixedly connected between the tops of the positioning plates. The positioning block is arranged below the positioning plates. A pair of upper right-angle blocks with inclined surfaces are fixedly connected to the top of the top plate. Lower right-angle blocks with inclined surfaces are fixedly connected to the side of the straight plates close to each other and above the upper right-angle blocks. The inclined surfaces of the lower right-angle blocks are in contact with the inclined surfaces of the upper right-angle blocks. Lower plates are fixedly connected to the sides of the positioning plates away from each other. A positioning spring is fixedly connected between the top of the lower plate and the bottom of the L-shaped plate.

[0011] In the above technical solution, further, a bottom plate is fixedly connected to the side wall of the side plate. An upper screw rod is threadedly connected through the bottom plate, and the top end of the upper screw rod is rotatably connected to the bottom of the storage frame. A telescopic cylinder is fixedly connected to the bottom of the sliding plate in an inclined manner, and a push plate is slidably connected to the inside of the telescopic cylinder. A limiting plate is fixedly connected to the side wall of the storage frame and at the inner bottom end of the V-shaped block.

[0012] In the above technical solution, further, the bottom of the push plate is in contact with the inner bottom end of the storage frame. A compression spring is fixedly connected between the inside of the telescopic cylinder and the top of the push plate. An upper scale groove for indicating the adjusted height of the storage frame is provided on the side wall of the side plate.

[0013] In the above technical solution, further, a guiding groove is provided on the front side of the side plate. A guiding block is fixedly connected to the rear side of the storage frame, and the guiding block is slidably connected to the inside of the guiding groove.

[0014] In the above technical solution, further, a lower screw rod is threadedly connected through the top end of the top plate. An adjusting rod is fixedly connected to the top of the positioning block, and the adjusting rod is slidably connected between the positioning plates. The bottom end of the lower screw rod is rotatably connected to the top end of the adjusting rod. A lower scale groove for indicating the adjusted height of the positioning block is provided on the side wall of one of the positioning plates.

[0015] In the above technical solution, further, a baffle is fixedly connected to the top end of the conveying plate on the side away from the placing table.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the arrangement of structures such as the electric telescopic cylinder, the storage frame, the push plate, and the positioning mechanism, the present invention can automatically load and unload multiple exploration drill bits, and fix the exploration drill bits on the V-shaped block to ensure stability during the measurement process. Thus, it is not necessary for the measurement personnel to frequently operate to place the drill bits, greatly improving the measurement convenience performance of the device.

[0017] 2. Through the arrangement of structures such as the V-shaped block, the side plate, the upper screw rod, and the lower screw rod, the present invention can adjust the loading and positioning positions according to the size of the exploration drill bit, so as to automatically load and unload exploration drill bits of various specifications, further improving the general performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front three-dimensional structural schematic diagram of the measuring device of the present invention; Figure 2 is an enlarged partial structural schematic diagram of part A in the appendix of the present invention; Figure 1 is a side three-dimensional structural schematic diagram of the testing device of the present invention; Figure 3 is an appendix of the present invention; Figure 4 is an appendix of the present invention;Figure 3 Schematic diagram of the partially enlarged structure at position B; Figure 5 Bottom-up perspective three-dimensional structure diagram of the L-shaped plate, placement table and storage box of the present invention; Figure 6 Overall appearance structure diagram of the positioning plate, adjusting rod and positioning block of the present invention; Figure 7 Overall appearance structure diagram of the straight plate, sliding plate and push plate of the present invention; Figure 8 Separate three-dimensional structure diagram of the storage box and the push plate of the present invention; Figure 9 Separate three-dimensional structure diagram of the support rod and the support cylinder of the present invention.

[0019] In the figure: 1. Measuring table; 2. Measuring mechanism; 3. Placement table; 4. V-shaped block; 5. Conveyor plate; 6. Conveyor mechanism; 7. Side plate; 8. Storage box; 9. L-shaped plate; 10. Sliding plate; 11. Push plate; 12. Electric telescopic cylinder; 13. Horizontal groove; 14. Connecting rod; 15. Straight plate; 16. Rear plate; 17. Side opening; 18. Support cylinder; 19. Support rod; 20. Support spring; 21. Positioning block; 22. Positioning plate; 23. Top plate; 24. Upper right-angle block; 25. Lower right-angle block; 26. Lower plate; 27. Positioning spring; 28. Bottom plate; 29. Upper screw; 30. Telescopic cylinder; 31. Limiting plate; 32. Extrusion spring; 33. Upper scale groove; 34. Discharge port; 35. Baffle plate; 36. Lower screw; 37. Adjusting rod; 38. Lower scale groove; 39. Baffle; 40. Guide groove; 41. Guide block. Detailed implementation manners

[0020] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0021] Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0022] Such as Figures 1-9An apparatus for measuring the size of a drill bit used in marine geological exploration, as shown, includes a measuring table 1 and a measuring mechanism 2 provided at the top of the measuring table 1 for automatically measuring the inner hole contour size of the exploration drill bit. The measuring mechanism 2 mainly maps the coordinate points of the surface contour of the measured part through X-axis and Y-axis sensors, and then transmits the coordinate point data measured by the sensors to the upper PC through electrical components. The software performs mathematical operation processing on the collected original coordinate data to obtain the inner hole contour size of the exploration drill bit. A placement table 3 is bolted to the top of the measuring table 1. A V-shaped block 4 is fixedly connected to the top of the placement table 3. Through the setting of the V-shaped block 4, it is convenient to place and measure exploration drill bits with different diameters. A pair of conveying plates 5 are fixedly connected to the top of the measuring table 1 and located between the placement table 3 and the measuring mechanism 2. A conveying mechanism 6 for conveying the measured drill bits is provided between the conveying plates 5. The conveying mechanism 6 is mainly composed of a motor, a transmission roller and a conveyor belt, which is a mature technology in the prior art and will not be described in detail here. A side plate 7 is fixedly connected to the top of the measuring table 1 and inclined away from the measuring mechanism 2. A storage frame 8 for storing drill bits is provided on the side wall of the side plate 7; An L-shaped plate 9 is fixedly connected to the top of the measuring table 1 and located at the rear of the placement table 3. A sliding plate 10 is slidably connected to the bottom of the L-shaped plate 9 and above the storage frame 8. A push plate 11 for pushing the drill bit out of the storage frame 8 is inclined at the bottom of the sliding plate 10. An outlet 34 is opened on one side of the storage frame 8 close to the placement table 3. An electric telescopic cylinder 12 is fixedly connected to the top of the L-shaped plate 9. A pair of transverse grooves 13 are opened on the top of the L-shaped plate 9. Connecting rods 14 are fixedly connected to the top ends of the sliding plate 10 and located in the transverse grooves 13. Straight plates 15 are fixedly connected to the tops of the connecting rods 14. A rear plate 16 is fixedly connected to the side wall of one of the straight plates 15. The output end of the electric telescopic cylinder 12 is fixedly connected to the side wall of the rear plate 16. A positioning mechanism for pressing the drill bit in the V-shaped block 4 is provided on the L-shaped plate 9; Moreover, the inclination angle of the side plate 7 is the same as that of the inner side of the V-shaped block 4, and the rear side of the storage frame 8 is set with the same inclination angle as the side plate 7. A side opening 17 adapted to the push plate 11 is opened on one side of the storage frame 8 away from the outlet 34. Through the setting of the side opening 17, it is convenient to store the push plate 11 and prevent it from hindering the downward sliding of the drill bit in the storage frame 8. A shielding plate 35 is fixedly connected to the side wall of the push plate 11. Through the setting of the shielding plate 35, when the push plate 11 is moved out of the outlet 34, it can limit the drill bit in the storage frame 8 and prevent the drill bit in the storage frame 8 from directly sliding down when the push plate 11 is moved out, affecting the normal reset of the push plate 11. A support mechanism for supporting the storage frame 8 is provided on the measuring table 1; The positioning mechanism includes a positioning block 21. A pair of positioning plates 22 are slidably connected through the top of the L-shaped plate 9 and above the V-shaped block 4. A top plate 23 is fixedly connected between the tops of the positioning plates 22. The positioning block 21 is arranged below the positioning plates 22. A pair of upper right-angle blocks 24 with inclined surfaces are fixedly connected to the top of the top plate 23. Lower right-angle blocks 25 with inclined surfaces are fixedly connected to the closer sides of the straight plates 15 and above the upper right-angle blocks 24. The inclined surface of the lower right-angle block 25 is in contact with the inclined surface of the upper right-angle block 24. Lower plates 26 are fixedly connected to the farther sides of the positioning plates 22. Positioning springs 27 are fixedly connected between the tops of the lower plates 26 and the bottom of the L-shaped plate 9. Through the arrangement of the positioning springs 27, when the extrusion on the top plate 23 is released, it is convenient to quickly push the positioning block 21 to slide upward for resetting; When measuring the inner hole contour size of the exploration drill bit, first place the drill bit to be measured into the storage frame 8 in sequence. Since the storage frame 8 is in an inclined state, it will slide into the rear side of the storage frame 8 under the self-weight of the exploration drill bit. Subsequently, control the electric telescopic cylinder 12 to start and drive the rear plate 16 and the straight plate 15 to move, thereby pulling the connecting rod 14 and the sliding plate 10 to move. At the same time, the movement of the straight plate 15 will drive the lower right-angle block 25 to move, thereby gradually moving the lower right-angle block 25 away from the upper right-angle block 24, gradually releasing the extrusion on the top plate 23. Then, under the elastic force of the positioning spring 27, the positioning plates 22 and the positioning block 21 are pushed to slide upward until the lower right-angle block 25 completely moves out of the upper right-angle block 24. The positioning block 21 completes the reset and releases the positioning of the drill bit in the V-shaped block 4. Then, the telescopic cylinder 30 and the push plate 11 are driven to move on the storage frame 8. Furthermore, through the movement of the push plate 11, the exploration drill bit in the storage frame 8 is pushed out from the discharge port 34, and then pushed into the V-shaped block 4 through the limiting plate 31 (at this time, if there is a measured exploration drill bit in the V-shaped block 4, it will be pushed out of the V-shaped block 4 by the drill bit pushed out from the storage frame 8 and pushed onto the conveying mechanism 6, thus realizing the automatic blanking of the measured drill bit). At the same time, the shielding plate 35 will play a role in shielding the drill bit in the storage frame 8 to prevent it from directly sliding into the rear side of the storage frame 8 and affecting the normal reset of the push plate 11; Then, the electric telescopic cylinder 12 can be controlled to move in the reverse direction to pull the straight plate 15 and the sliding plate 10 for resetting, and drive the push plate 11 for resetting. Before the push plate 11 is reset, it will drive the lower right-angle block 25 to move beside the upper right-angle block 24, and then the inclined surface of the lower right-angle block 25 squeezes the inclined surface of the upper right-angle block 24, causing the upper right-angle block 24 and the top plate 23 to slide downward, and at the same time driving the positioning plate 22, the adjusting rod 37 and the positioning block 21 to slide downward, realizing the positioning of the drill bit in the V-shaped block 4. At the same time, the push plate 11 slides into the side port 17, thus releasing the restriction on the drill bit in the storage frame 8. Under the action of its own gravity, the drill bit in the storage frame 8 slides backward to the discharge port 34. Finally, the measuring mechanism 2 can be controlled to start, insert the measuring head into the inner hole contour of the drill bit, automatically measure the inner hole contour size of the exploration drill bit, and after the measurement is completed, control the electric telescopic cylinder 12 to start and repeat the above operations for loading and unloading.

[0023] To improve the stability of the device, the support mechanism includes support cylinders 18. There are a pair of support cylinders 18, and the support cylinders 18 are both inclined and fixedly connected to the top of the measuring table 1. A pair of support rods 19 are fixedly connected to the bottom of the storage frame 8, and the support rods 19 are both slidably connected to the inside of the support cylinders 18. A support spring 20 is fixedly connected between the inside of the support cylinder 18 and the side wall of the support rod 19. Through the settings of the support cylinder 18, the support rod 19 and the support spring 20, the storage frame 8 can be supported, and the support spring 20 can provide elastic support for the storage frame 8 to ensure that the storage frame 8 will not undergo large deformation when the storage frame 8 is filled with drill bits.

[0024] To be able to automatically load and unload and measure exploration probes of various specifications, a bottom plate 28 is fixedly connected to the side wall of the side plate 7. A upper screw rod 29 is threadedly connected through the bottom plate 28, and the top end of the upper screw rod 29 is rotatably connected to the bottom of the storage frame 8. A telescopic cylinder 30 is fixedly connected to the bottom of the sliding plate 10 in an inclined manner, and the push plate 11 is slidably connected to the inside of the telescopic cylinder 30. A limiting plate 31 is fixedly connected to the side wall of the storage frame 8 and at the inner bottom end of the V-shaped block 4. Through the setting of the limiting plate 31, it can be ensured that the push plate 11 still maintains its initial position when it slides into the V-shaped block 4, ensuring the normal reset of the subsequent push plate 11; The bottom of the push plate 11 is in contact with the inner bottom end of the storage frame 8. An extrusion spring 32 is fixedly connected between the inside of the telescopic cylinder 30 and the top of the push plate 11. Through the setting of the extrusion spring 32, it is convenient to apply an extrusion force to the push plate 11, and it can quickly push the push plate 11 downward when the storage frame 8 is adjusted downward. An upper scale groove 33 for indicating the adjusted height of the storage frame 8 is opened on the side wall of the side plate 7. Through the setting of the upper scale groove 33, during the process of adjusting the position of the storage frame 8, the position of the storage frame 8 on the upper scale groove 33 can be observed, so that the position of the storage frame 8 can be accurately adjusted according to the size of the drill bit to be measured, ensuring the stability during the subsequent feeding process; A guiding groove 40 is provided on the front side of the side plate 7. A guiding block 41 is fixedly connected to the rear side of the storage frame 8, and the guiding block 41 is slidably connected to the inside of the guiding groove 40. Through the arrangement of the guiding groove 40 and the guiding block 41, when the upper screw rod 29 is rotated to adjust the position of the storage frame 8, the guiding block 41 can be driven to slide inside the guiding groove 40, so as to play a guiding role in the sliding of the storage frame 8, avoid the storage frame 8 from rotating together with the upper screw rod 29, and improve the stability during the adjustment process; A lower screw rod 36 is threadedly connected through the top end of the top plate 23. An adjusting rod 37 is fixedly connected to the top of the positioning block 21, and the adjusting rod 37 is slidably connected between the positioning plates 22. The bottom end of the lower screw rod 36 is rotatably connected to the top end of the adjusting rod 37. A lower scale groove 38 for indicating the adjustment height of the positioning block 21 is provided on the side wall of one of the positioning plates 22. Through the arrangement of the lower scale groove 38, during the process of adjusting the position of the positioning block 21, the position of the adjusting rod 37 on the lower scale groove 38 can be observed, so as to accurately adjust the position of the positioning block 21 and ensure the subsequent positioning effect of the drill bit; When it is necessary to measure exploration drill bits of different specifications, first rotate the upper screw rod 29. Since the upper screw rod 29 is threadedly connected through the bottom plate 28, the upper screw rod 29 will spiral upward, thus pushing the storage frame 8 to slide on the side plate 7, and at the same time driving the support rod 19 to slide inside the support cylinder 18 and stretching the support spring 20 upward. At the same time, with the upward sliding of the storage frame 8, the push plate 11 will be gradually pushed upward and slide inside the telescopic cylinder 30, and the compression spring 32 will be gradually compressed, so that the storage frame 8 slides obliquely upward along the inclined surface of the side plate 7, and the position where the drill bit in the storage frame 8 slides into the V-shaped block 4 can be changed (it should be noted here that this measuring device is mainly for measuring circular exploration drill bits, and exploration drill bits of different diameters can be placed in the V-shaped block 4, but the positions where exploration drill bits of different diameters are placed in the V-shaped block 4 are different, so the height of the storage frame 8 needs to be raised to avoid hindrance when a larger exploration probe is pushed into the V-shaped block 4); Then the lower screw rod 36 can be rotated. Since the lower screw rod 36 is threadedly connected through the top plate 23, the lower screw rod 36 will spiral upward, and at the same time drive the adjusting rod 37 to slide between the positioning plates 22. And the sliding of the adjusting rod 37 between the positioning plates 22 plays a guiding role, so it will not rotate together with the lower screw rod 36, thus driving the positioning block 21 to slide upward and adjusting the subsequent positioning position of the positioning block 21 (it should be noted here that since the sliding distance of the lower right-angle block 25 is unchanged, the extrusion height of the upper right-angle block 24 is also fixed. Therefore, by adjusting the height of the positioning block 21, exploration drill bits of different diameters in the V-shaped block 4 can be positioned).

[0025] In order to improve the stability during the blanking process, a baffle 39 is fixedly connected to the top end of the conveying plate 5 on the side far away from the placing table 3. Through the setting of the baffle 39, the pushed drill bit can be limited, preventing the drill bit from moving out of the conveyor belt on the conveying mechanism 6, thereby improving the stability of the device during the blanking process. And it should be noted here that since the exploration drill bit is provided with impurity discharge grooves on its surface, when the exploration drill bit is placed on the conveyor belt of the conveying mechanism 6 for conveying, it will not shake and can be stably placed on the conveyor belt for conveying.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention.

[0027] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A drill bit dimension measuring device for marine geological survey, comprising a measuring platform (1), and a measuring mechanism (2) arranged at the top of the measuring platform (1) for automatically measuring the inner hole profile dimension of the exploration drill bit, characterized in that: The top of the measuring platform (1) is bolted to a placing platform (3), the top of the placing platform (3) is fixedly connected to a V-shaped block (4), the top of the measuring platform (1) is fixedly connected to a pair of conveying plates (5) located between the placing platform (3) and the measuring mechanism (2), a conveying mechanism (6) for conveying the measured drill bit is provided between the conveying plates (5), the top of the measuring platform (1) and a side away from the measuring mechanism (2) is obliquely fixedly connected to a side plate (7), and the side wall of the side plate (7) is provided with a storage frame (8) for storing drill bits; An L-shaped plate (9) is fixedly connected to the top of the measuring table (1) and located at the rear side of the placement table (3); a sliding plate (10) is slidably connected to the bottom of the L-shaped plate (9) and located above the storage frame (8); a push plate (11) for pushing a drill bit out of the storage frame (8) is tiltedly provided at the bottom of the sliding plate (10); a discharge port (34) is provided on the side of the storage frame (8) close to the placement table (3); an electric telescopic cylinder (12) is fixedly connected to the top of the L-shaped plate (9); a pair of transverse grooves (13) are provided at the top of the L-shaped plate (9); connecting rods (14) are fixedly connected to the top of the sliding plate (10) and located in the transverse grooves (13); straight plates (15) are fixedly connected to the tops of the connecting rods (14); a rear plate (16) is fixedly connected to the side walls of one of the straight plates (15); an output end of the electric telescopic cylinder (12) is fixedly connected to the side wall of the rear plate (16); and a positioning mechanism for squeezing the drill bit in the V-shaped block (4) is provided on the L-shaped plate (9).

2. The drill bit size measuring device for marine geological survey according to claim 1, characterized in that: The side plate (7) and the inner side of the V-shaped block (4) have the same inclination angle, and the rear side of the storage frame (8) is arranged at the same inclination angle as the side plate (7). A side opening (17) adapted to the push plate (11) is provided on a side of the storage frame (8) away from the discharge port (34). A shielding plate (35) is fixedly connected to the side wall of the push plate (11). A supporting mechanism for supporting the storage frame (8) is provided on the measuring platform (1).

3. The drill bit size measuring device for marine geological survey according to claim 2, characterized in that: The support mechanism comprises a support tube (18), a pair of the support tubes (18) are provided, and the support tubes (18) are both tilted and fixedly connected to the top of the measuring platform (1), a pair of support rods (19) are fixedly connected to the bottom of the storage frame (8), and the support rods (19) are both slidably connected to the inner side of the support tube (18), and a support spring (20) is fixedly connected between the inner side of the support tube (18) and the side wall of the support rod (19).

4. The drill bit size measuring device for marine geological survey according to claim 1, characterized in that: The positioning mechanism comprises a positioning block (21), a pair of positioning plates (22) are slidably connected to the top of the L-shaped plate (9) and located above the V-shaped block (4), a top plate (23) is fixedly connected between the tops of the positioning plates (22), the positioning block (21) is arranged below the positioning plate (22), a pair of upper right-angle blocks (24) with inclined surfaces are fixedly connected to the tops of the top plates (23), a lower right-angle block (25) with inclined surfaces is fixedly connected to the side of the straight plate (15) close to it and located above the upper right-angle block (24), and the inclined surfaces of the lower right-angle blocks (25) are in contact with the inclined surfaces of the upper right-angle blocks (24), a lower plate (26) is fixedly connected to the side of the positioning plate (22) away from it, and a positioning spring (27) is fixedly connected between the top of the lower plate (26) and the bottom of the L-shaped plate (9).

5. The drill bit size measuring device for marine geological survey according to claim 1, characterized in that: The side wall of the side plate (7) is fixedly connected to a bottom plate (28), an upper screw rod (29) is threadedly connected to the bottom plate (28), and the top end of the upper screw rod (29) is rotatably connected to the bottom of the storage frame (8), the bottom of the sliding plate (10) is tiltably fixedly connected to a telescopic cylinder (30), and the push plate (11) is slidably connected to the inner side of the telescopic cylinder (30), and the side wall of the storage frame (8) is fixedly connected to a limit plate (31) at the bottom end located inside the V-shaped block (4).

6. The drill bit size measuring device for marine geological survey according to claim 5, characterized in that: The bottom of the push plate (11) contacts the inner bottom end of the storage frame (8), a compression spring (32) is fixedly connected between the inner side of the telescopic cylinder (30) and the top of the push plate (11), and an upper scale groove (33) for indicating the height adjustment of the storage frame (8) is provided on the side wall of the side plate (7).

7. The drill bit size measuring device for marine geological survey according to claim 5, characterized in that: A guide groove (40) is provided on the front side of the side plate (7), a guide block (41) is fixedly connected to the rear side of the storage frame (8), and the guide block (41) is slidably connected to the inner side of the guide groove (40).

8. The drill bit size measuring device for marine geological survey according to claim 4, characterized in that: A lower screw rod (36) is threadedly connected through the top of the top plate (23), an adjusting rod (37) is fixedly connected to the top of the positioning block (21), and the adjusting rod (37) is slidably connected between the positioning plates (22), and the bottom end of the lower screw rod (36) is rotatably connected to the top of the adjusting rod (37), and a lower scale groove (38) for indicating the height adjustment of the positioning block (21) is opened on the side wall of one of the positioning plates (22).

9. The drill bit size measuring device for marine geological survey according to claim 1, characterized in that: A baffle (39) is fixedly connected to the top of the conveying plate (5) on the side away from the placement platform (3).

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