Geological exploration equipment for geological exploration

Abstract

The utility model relates to the technical field of geological exploration, and discloses geological exploration equipment for geological exploration, which comprises a traction rod, an inner pipe, a sleeve, a bolt, a casing pipe, a plurality of clamping plates and a driving part, the sleeve is fixedly connected to the upper end of the inner pipe, a plurality of first penetrating holes are formed in the sleeve in the circumferential direction of the sleeve, the bolt is fixedly connected to the upper end of the inner pipe and located at the center axis of the sleeve, the bolt is a polygon, the sleeve is rotationally connected to the middle of the lower end of the traction rod, and the clamping plates are evenly distributed in the circumferential direction of the sleeve. The clamping plates are arranged in the sleeve and are rotationally connected with the lower end of the traction rod through fixedly-connected rotating shafts, the clamping plates can stretch into the corresponding adjacent first penetrating holes after rotating, the driving part is connected with the sleeve and the rotating shafts, and when the plug pins are inserted into the sleeve and rotate the traction rod, the driving part enables the clamping plates to synchronously rotate in the same direction. According to the utility model, the structural stress is uniform, the bearing capacity is stronger, the structure is more stable and is not interfered by hard powder, and the risk rate that the inner pipe falls off is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, and particularly relates to a geological exploration device for geological exploration. Background Technique

[0002] Geological exploration refers to the exploration and detection of geology to determine a suitable bearing layer and determine the foundation type according to the foundation bearing capacity of the bearing layer. Geological exploration can investigate and study the geological conditions such as rocks, strata, structures, minerals, hydrology, and landforms in a certain area. The commonly used exploration method is the drilling method. The existing drilling equipment is usually a core drilling rig. By drilling holes in the formation, it can identify and divide the subsurface strata and can sample along the hole depth. The core drilling rig includes a drilling part, a driving part, and a core-taking part.

[0003] The drilling part includes a drill pipe and a drill bit (c). The drill pipe is a hollow drill pipe made of high-strength steel. The drill pipe is usually composed of an outer pipe and an inner pipe. A sampling core-taking pipe for sampling the rock layer structure is connected in the inner pipe. As Figure 1 shown, the lower part of the drill bit (c) has a hollow circular end face structure, and multiple crushing bumps are arranged on the end face. The whole drill bit (c) is composed of a combination of high-strength wear-resistant metal and hard crushing materials such as diamond to ensure rapid crushing and milling of the formation rock. The driving part is used to drive the drill pipe to rotate and feed deep into the ground. The core-taking part is a device that pulls the sampling core-taking pipe out of the drill pipe upward after sampling the rock layer sample. The existing core-taking part includes a traction rod that can extend into the inner pipe. A spring claw mechanism for automatically fixing with the inner pipe is arranged inside one end of the traction rod opposite to the inner pipe. As Figure 2 shown, a traction column (d) with different outer diameters is also arranged at one end of the inner pipe close to the traction rod. When the traction rod approaches and disengages from the traction column (d), multiple claws are forced to open outward by the traction column (d). When the claws move to the part with a smaller outer diameter of the traction column (d), relying on the elastic restoring force of multiple springs, the claws are clamped to the part with a smaller outer diameter of the traction column (d). At this time, the inner pipe and the sampling core-taking pipe are pulled out by means of a traction rope or an external pipeline. After disassembling the sampling core-taking pipe in the inner pipe, the rock layers are sorted and placed in order to prepare for subsequent geological research and analysis. When drilling in hard rock layers, the diamond of the drill bit (c) wears a large amount, and a large amount of hard powder is generated. When these hard powders remain at the bottom of the hole and are not cleared, it will affect the drilling efficiency of the subsequent drill bit (c) and even damage the drill bit (c). At the same time, to avoid the drill bit (c) from overheating too quickly, a flushing liquid is usually injected into the drill pipe.

[0004] However, when taking a core sample, after the traction rod extends into the drill pipe, the hard powder will also come into contact with the claws of the traction rod along with the flushing liquid. When the claws hold the traction column (d) tightly, there may be a lot of hard powder left between them. The hard powder may cause the two to slide longitudinally even when in the tightened state. Additionally, due to the elastic deformation structural characteristics of the spring itself, its stability is uncontrollable. When pulling the traction rod upward, the sampling core tube filled with rock formation samples is heavy and affected by the resistance of the flushing liquid. It is very likely that the claws and the traction column (d) will slide under the medium of the hard powder. When the pulling force exceeds the deformation stress of the spring, the spring may undergo elastic deformation, which is very likely to cause separation and detachment during the process of the traction rod pulling up the inner tube. Summary of the Invention

[0005] The present invention provides a geological exploration device for geological prospecting. The device structure of the present invention has uniform force and strong bearing capacity, is relatively stable and not interfered by hard powder, and reduces the risk rate of the inner tube falling off.

[0006] The technical solution adopted by the present invention is as follows:

[0007] The present invention provides a geological exploration device for geological prospecting, including a traction rod (1) and an inner tube (2), and further including:

[0008] A sleeve (3), fixedly connected to the upper end of the inner tube (2) and having an inner diameter larger than the outer diameter of the adjacent end of the traction rod (1). The sleeve (3) is provided with a plurality of first through holes (31) along its circumferential direction;

[0009] A bolt (4), fixedly connected to the upper end of the inner tube (2) and located at the central axis of the sleeve (3). The bolt (4) is a multi-sided body;

[0010] A casing (5), rotatably connected to the middle of the lower end of the traction rod (1). The internal shape of the casing (5) matches that of the bolt (4);

[0011] A plurality of clamping plates (6), evenly distributed in the circumferential direction of the casing (5), and all rotatably connected to the lower end of the traction rod (1) through fixedly connected rotating shafts (7). After the clamping plates (6) rotate, they can extend into the corresponding adjacent first through holes (31);

[0012] A driving part (8), respectively connected to the casing (5) and each of the rotating shafts (7). When the bolt (4) is inserted into the casing (5) and the traction rod (1) is rotated, the driving part (8) enables each of the clamping plates (6) to rotate synchronously and in the same direction.

[0013] Preferably, each of the clamping plates (6) is fixedly connected to the corresponding rotating shaft (7) through a fixing ring, and a reinforcing rib plate (14) is fixedly connected to the lower end of each of the clamping plates (6). The lower end of the reinforcing rib plate (14) is fixedly connected to the fixing ring.

[0014] Preferably, a cylinder member (9) extends downward from the lower end of the traction rod (1). Second through holes (91) are circumferentially formed in the cylinder member (9) at positions corresponding to the clamping plates (6). When the clamping plates (6) are completely rotated to the outer limit position, the opposite clamping plates (6) are in a parallel state. A support plate (10) is fixedly connected to the lower end of the cylinder member (9). The sleeve (5) passes through the support plate (10) and the two are rotatably connected. The lower ends of the rotating shafts (7) are rotatably connected to the support plate (10).

[0015] Preferably, a plurality of hollow holes (101) are vertically formed in the support plate (10), and plug members (102) are arranged for the hollow holes (101).

[0016] Preferably, the bottom of the support plate (10) is in a conical shape with a higher middle and lower sides.

[0017] Preferably, the axial length of the sleeve (5) is longer than the length of the plug pin (4). A plurality of drain holes (51) are formed in the sleeve (5) along its circumference for discharging the originally stored scouring liquid in the sleeve (5) when the plug pin (4) is inserted. When the plug pin (4) extends into the sleeve (5), the upper surfaces of the first through hole (31) and the second through hole (91) are at the same height.

[0018] Preferably, a sealing plate (11) is further included. The sealing plate (11) is fixedly connected above the cylinder member (9). The sealing plate (11) and the cylinder member (9) and the traction rod (1) enclose a sealed cavity. Each of the rotating shafts (7) and the sleeve (5) is rotatably connected to the sealing plate (11). The upper ends of each of the rotating shafts (7) and the sleeve (5) extend into the cavity.

[0019] The driving part (8) includes a driving gear (81) and a plurality of driven gears (82). The driving gear (81) is fixedly connected to the upper end of the sleeve (5). Each of the driven gears (82) is fixedly connected to the upper end of each of the rotating shafts (7) in a one-to-one correspondence. Each of the driven gears (82) is engaged with the driving gear (81).

[0020] Preferably, a stopper (13) is fixedly connected to the lower end of the sealing plate (11) corresponding to the position of each clamping plate (6). When the clamping plate (6) rotates into the cylinder member (9), two adjacent clamping plates (6) are perpendicular to each other in the longitudinal projection.

[0021] Preferably, a limit pin (12) is fixedly connected to the upper end of each clamping plate (6); an annular groove (32) is provided above the first through hole (31) of the sleeve (3). When each clamping plate (6) rotates outwards to the limit position, the limit pin (12) is aligned with the annular groove (32). When the height of the clamping plate (6) increases, the limit pin (12) is placed in the corresponding annular groove (32).

[0022] Preferably, a pin member (15) is fixedly connected to the top end of the bolt (4). The sides of the top end of the pin member (15) are hinged with abutting plates (16) inclined downward to both sides. The lower end of the abutting plate (16) is hinged with a connecting rod (17). The other ends of the connecting rods (17) are hinged with a collar (22). The collar (22) is slidably connected with the pin member (15). A spring (18) is connected to the lower end of the collar (22). A stopper (19) is provided at the lower end of the pin member (15) corresponding to the spring (18). A stopper (19) for limiting is also provided above the collar of the pin member (15); a horizontal plate (20) is further included, which is fixedly connected inside the sleeve (5). A through hole (201) is provided in the middle of the horizontal plate (20). When the bolt (4) extends into the sleeve (5), the abutting plates (16) approach each other and pass through the through hole (201). After the abutting plate (16) passes through the through hole (201), the maximum distance enclosed by the bottoms of the abutting plates (16) is greater than the aperture of the through hole (201). When the limit pin (12) is placed in the annular groove (32), the abutting plate (16) is clamped with the upper surface of the horizontal plate (20).

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] The latch is arranged on the inner tube. When the towing rod penetrates into the outer tube, the sleeve will be sleeved on the latch. At the same time, since the sleeve can rotate and the latch is a multi-sided body, the shape inside the sleeve matches the shape of the latch. After the sleeve is sleeved on the latch, when the towing rod is rotated, the sleeve will not rotate on its own. Specifically, the latch can be a triangular body, a quadrilateral body or a hexagonal body, preferably a hexagonal body, which is convenient for the sleeve to be inserted after it extends in. Through the arranged driving part, when the towing rod is rotated, it can play a role in synchronously rotating each rotating shaft, so that each rotating shaft drives each clamping plate to rotate outwards around the axis of the rotating shaft. After each clamping plate rotates outwards, the clamping plate will also pass through the corresponding first through hole of the sleeve, thereby realizing the clamping connection between the clamping plate and the sleeve. Compared with the spring claw structure, the structure of this device has uniform stress and better bearing capacity, is relatively stable and is not interfered by hard powder. Even in the case of water resistance and sampling weight, when the towing rod is lifted upwards, the inner tube and the towing rod will not be easily separated. At the same time, the operation is relatively simple. Description of the Drawings

[0025] Figure 1 Schematic diagram of the drill bit structure of the prior art;

[0026] Figure 2 Schematic diagram of the towing column structure of the prior art;

[0027] Figure 3 Schematic diagram of the internal sectional structure of a geological exploration device provided by an embodiment of the present invention;

[0028] Figure 4 For Figure 3 Partial enlarged view of part A in

[0029] Figure 5 For Figure 4 Partial enlarged view of part B in

[0030] Figure 6 Schematic diagram of a partial structure of a geological exploration device provided by an embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the structure of a geological exploration device provided by an embodiment of the present invention from the bottom view with the support plate and the sealing plate removed;

[0032] Figure 8 Schematic diagram of the structure of a geological exploration device provided by an embodiment of the present invention from the bottom view with the sealing plate removed;

[0033] Figure 9 Schematic diagram of the structure of a geological exploration device provided by an embodiment of the present invention from the bottom view.

[0034] Description of the reference numerals:

[0035] a, outer tube; b, sampling coring tube; c, drill bit; d, traction column; 1, traction rod; 2, inner tube; 3, sleeve; 31, first perforation; 32, annular groove; 33, sand leakage hole; 4, pin; 5, casing; 51, drain hole; 6, clamping plate; 7, rotating shaft; 8, driving part; 81, driving gear; 82, driven gear; 9, cylindrical part; 91, second perforation; 10, support plate; 101, hollow hole; 102, plug; 11, sealing plate; 12, limit pin; 13, stop block; 14, reinforcing rib plate; 15, pin part; 16, abutting plate; 17, connecting rod; 18, spring; 19, blocking part; 20, horizontal plate; 201, through hole; 21, sand guiding plate; 22, collar. Detailed implementation mode

[0036] The following combines with the drawings to describe in detail a specific implementation mode of the present utility model, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical solutions of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0038] Reference Figure 3 、 Figure 4 and Figure 6, the utility model provides a geological exploration device for geological prospecting, which includes a towing rod 1 and an inner tube 2, and also includes: a sleeve 3, a pin 4, a casing 5, a plurality of clamping plates 6, and a driving part 8; the sleeve 3 is fixedly connected to the upper end of the inner tube 2 and has an inner diameter larger than the outer diameter of the adjacent end of the towing rod 1. The sleeve 3 is provided with a plurality of first through holes 31 along its circumferential direction. The pin 4 is fixedly connected to the upper end of the inner tube 2 and is located at the central axis of the sleeve 3. The pin 4 is a multi-sided body. The casing 5 is rotatably connected to the middle part of the lower end of the towing rod 1. The inner shape of the casing 5 matches the shape of the pin 4. The plurality of clamping plates 6 are evenly distributed along the circumferential direction of the casing 5 and are all rotatably connected to the lower end of the towing rod 1 through the fixedly connected rotating shafts 7. After the clamping plates 6 rotate, they can extend into the corresponding adjacent first through holes 31. The driving part 8 is respectively connected to the casing 5 and each rotating shaft 7. When the pin 4 is inserted into the casing 5 and the towing rod 1 is rotated, the driving part 8 causes each clamping plate 6 to rotate synchronously and in the same direction.

[0039] In the above embodiments, by arranging the pin 4 on the inner tube 2, when the towing rod 1 is inserted into the outer tube a, the casing 5 will be sleeved on the pin 4. At the same time, since the casing 5 can rotate and the pin 4 is a multi-sided body, and the inner shape of the casing 5 matches the shape of the pin 4, when the casing 5 is sleeved on the pin 4, the casing 5 will not rotate automatically when the towing rod 1 is rotated. Specifically, the pin 4 can be a triangular body, a quadrilateral body or a hexagonal body, preferably a hexagonal body, which is convenient for the insertion of the casing 5 after it is inserted. By arranging the driving part 8, when the towing rod 1 is rotated, it can synchronize the rotation of each rotating shaft 7, so that each rotating shaft 7 drives each clamping plate 6 to rotate outward around the axis of the rotating shaft 7. After each clamping plate 6 rotates outward, the clamping plate 6 will also pass through the outside of the corresponding first through hole 31 of the sleeve 3, thereby realizing the clamping connection between the clamping plate 6 and the sleeve 3. Compared with the spring 18 claw structure, the structure of this device has more uniform stress and better bearing capacity, the structure is relatively stable and not interfered by hard powder. Even in the case of water resistance and sampling weight, when the towing rod 1 is lifted upward, the inner tube 2 and the towing rod 1 will not be easily separated, and at the same time, the operation is relatively simple.

[0040] Further, referring to Figure 7 , Figure 8 and Figure 9 , considering that the bottom support force of the rotating shaft 7 is weak, the lower end of the towing rod 1 extends downward with a cylinder part 9. The cylinder part 9 is provided with second through holes 91 along the circumferential direction corresponding to the positions of the respective clamping plates 6. When the clamping plates 6 are completely rotated to the outer limit position, the opposite clamping plates 6 are in a parallel state. The lower end of the cylinder part 9 is fixedly connected with a support plate 10. The casing 5 passes through the support plate 10 and the two are rotatably connected. The lower ends of the respective rotating shafts 7 are all rotatably connected to the support plate 10. The bottom of the support plate 10 is in a conical shape with a high middle and low sides.

[0041] In the above embodiments, the provided support plate 10 can provide more stable support and connection for the rotating shaft 7 and the sleeve 5.

[0042] Further, referring to Figure 4 , the axial length of the sleeve 5 is longer than the length of the plug pin 4. The sleeve 5 is provided with a plurality of drain holes 51 along its circumferential direction for discharging the originally stored scouring liquid in the sleeve 5 when the plug pin 4 is inserted; when the plug pin 4 extends into the sleeve 5, the upper surfaces of the first through hole 31 and the second through hole 91 are at the same height.

[0043] Further, referring to Figure 7 , considering that the driving part 8, including the driving gear 81 and the driven gears 82, will be submerged by the scouring liquid, affecting its service life, and at the same time, it may also affect that the driving gear 81 is blocked by the scouring liquid with hard powder or even drive it to rotate by itself. Therefore, a sealing plate 11 is further included. The sealing plate 11 is fixedly connected above the inside of the cylinder 9. The sealing plate 11 and the cylinder 9 and the towing rod 1 enclose a closed cavity. Each rotating shaft 7 and the sleeve 5 are rotatably connected to the sealing plate 11. The upper ends of each rotating shaft 7 and the sleeve 5 extend into the cavity, thus ensuring that they are not affected by the scouring liquid; the driving part 8 includes a driving gear 81 and a plurality of driven gears 82. The driving gear 81 is fixedly connected to the upper end of the sleeve 5. Each driven gear 82 is fixedly connected to the upper end of each rotating shaft 7 in one-to-one correspondence. Each driven gear 82 meshes with the driving gear 81.

[0044] In the above embodiments, when the towing rod 1 is rotated, since the sleeve 5 is inserted into the plug pin 4, due to the limiting effect of the plug pin 4, the sleeve 5 does not rotate. Therefore, the driving gear 81 fixed to the sleeve 5 does not rotate. At this time, the other four driven gears 82 meshing with the driving gear 81 will rotate meshingly and self-rotate, so that each rotating shaft 7 will rotate in the same direction and synchronously, as shown in Figure 7 and Figure 9 . Each rotating shaft 7 will drive each clamping plate 6 to rotate outwards, thus passing through the first through hole 31 of the sleeve 3.

[0045] Further, referring to Figure 4 and Figure 6 , considering that there is still a small probability that the driving gear 81 will rotate by itself. To prevent its self-rotation, a limiting pin 12 is fixedly connected to the upper end of each clamping plate 6. The sleeve 3 is provided with an annular groove 32 at a position above the first through hole 31. When each clamping plate 6 rotates outwards to the limit position, the limiting pin 12 is aligned with the annular groove 32. When the height of the clamping plate 6 increases, the limiting pin 12 is placed in the corresponding annular groove 32. Since the rotation center axis of the limiting pin 12 is different from the central axis of the sleeve 3, it is difficult for the limiting pin 12 to rotate and deviate by a large angle in the annular groove 32, thus further ensuring the stability and anti-disengagement of the lifting.

[0046] Further, referring to Figure 4 , Figure 7 and Figure 8 , considering that when the pallet 6 lacks a limit, continuous inward rotation will collide with the sleeve 5, so a stopper 13 is fixedly connected to the lower end of the sealing plate 11 at the position corresponding to each pallet 6. When the pallet 6 rotates into the cylinder 9, the two adjacent pallets are perpendicular to each other under the longitudinal projection.

[0047] In the above embodiments, the provided stopper 13 can prevent each pallet 6 from colliding with the sleeve 5 after rotating inward, and at the same time, it is convenient for the user's actual operation and for the user to understand the initial position of the pallet 6.

[0048] Further, referring to Figure 4 and Figure 7 , considering that the pallet 6 bears a longitudinal force, and the length of the force arm is large and the force is unevenly distributed, so each pallet 6 is fixedly connected to the corresponding rotating shaft 7 through a fixing ring, and a reinforcing rib plate 14 is fixedly connected to the lower end of each pallet 6. The lower end of the reinforcing rib plate 14 is fixedly connected to the fixing ring.

[0049] In the above embodiments, the provided reinforcing rib plate 14 can enable the pallet 6 to bear a greater force.

[0050] Further, referring to Figure 4 and Figure 9 , considering that a large amount of water, hard powder and stone powder will accumulate between the support plate 10 and the sealing plate 11 after salvage, so a plurality of hollow holes 101 are formed in the support plate 10 along the vertical direction, and a plug 102 is provided for the hollow holes 101.

[0051] In the above embodiments, it is convenient for the drainage of accumulated water, powder, etc.

[0052] Further, referring to Figure 4 and Figure 5, considering that the stress points of the pallet 6 are evenly distributed on the outside and form a stress difference with the stress in the middle, in order to further improve stability and uniform stress, a pin member 15 is fixedly connected to the top of the bolt 4. The side edges of the top of the pin member 15 are all hinged with pressing plates 16 that incline downward to both sides. The lower ends of the pressing plates 16 are hinged with connecting rods 17. The other ends of the respective connecting rods 17 are hinged with a collar 22. The collar 22 is slidably connected to the pin member 15. A spring 18 is connected to the lower end of the collar 22. A stop member 19 is provided at the corresponding position of the lower end of the spring 18 on the pin member 15. A stop member 19 for limiting is also provided above the collar 22 on the pin member 15; it further includes a horizontal plate 20 fixedly connected inside the sleeve 5. A through hole 201 is opened in the middle of the horizontal plate 20. When the bolt 4 extends into the sleeve 5, the respective pressing plates 16 approach each other and pass through the through hole 201. After the pressing plates 16 pass through the through hole 201, the maximum distance enclosed by the bottoms of the respective pressing plates 16 is greater than the aperture of the through hole 201. When the limit pin 12 is placed in the annular groove 32, the pressing plates 16 are clamped with the upper surface of the horizontal plate 20.

[0053] In the above embodiments, through the clamping between the pressing plate 16 and the horizontal plate 20, the stress borne by the pallet 6 can be shared, and the overall stability can be improved. When disassembly is required, the bolt 4 can be first moved into the sleeve 5 and then the collar 22 can be pulled downward vertically. At this time, the spring 18 is in a compressed state, so that the respective pressing plates 16 are in a closed state, and then they can pass through the through hole 201 to complete the disassembly, which is very portable and practical.

[0054] Furthermore, referring to Figure 4 , in order to avoid excessive water accumulation in the sleeve 3 after salvage, a sand guiding plate 21 for guiding the hard powder to both sides of the sleeve 3 is fixedly connected to the upper end of the inner tube 2. A plurality of sand leakage holes 33 are opened in the sleeve 3 at the lower side corresponding to the sand guiding plate 21.

[0055] In the above embodiments, it is convenient to drain the accumulated water and the hard powder.

[0056] A geological exploration device provided by the present utility model has the following advantages:

[0057] The plug is arranged on the inner tube. When the towing rod penetrates into the outer tube, the sleeve will be sleeved on the plug. At the same time, since the sleeve can rotate and the plug is a multi-sided body, the shape inside the sleeve matches the shape of the plug. After the sleeve is sleeved on the plug, when the towing rod is rotated, the sleeve will not rotate on its own. Specifically, the plug can be a triangular body, a quadrilateral body or a hexagonal body, preferably a hexagonal body, which is convenient for the sleeve to be inserted after it penetrates. Through the arranged driving part, when the towing rod is rotated, it can play a role in synchronously rotating each rotating shaft, so that each rotating shaft drives each clamping plate to rotate outwards around the axis of the rotating shaft. After each clamping plate rotates outwards, the clamping plate will also pass through the corresponding first through hole of the sleeve, thus realizing the clamping connection between the clamping plate and the sleeve.

[0058] Compared with the spring claw structure, the structure of this device has uniform stress and better bearing capacity. The structure is relatively stable and not interfered by hard powder. Even in the case of water resistance and sampling weight, when the towing rod is lifted upwards, the inner tube and the towing rod will not be easily separated. At the same time, the operation is relatively simple.

[0059] The above-disclosed are only several specific embodiments of the present utility model. However, the embodiments of the present utility model are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A geological exploration device for geological prospecting, comprising a towing rod (1) and an inner tube (2), characterized in that, It further includes: A sleeve (3), fixedly connected to the upper end of the inner tube (2) and having an inner diameter larger than the outer diameter of the adjacent end of the traction rod (1). A plurality of first through holes (31) are formed in the sleeve (3) along its circumferential direction. A pin (4), fixedly connected to the upper end of the inner tube (2) and located at the central axis of the sleeve (3). The pin (4) is a polyhedron. A sleeve tube (5), rotatably connected to the middle of the lower end of the traction rod (1). The inner shape of the sleeve tube (5) matches that of the pin (4). A plurality of clamping plates (6), evenly distributed along the circumferential direction of the sleeve tube (5), and all rotatably connected to the lower end of the traction rod (1) through fixedly connected rotating shafts (7). After the clamping plates (6) rotate, they can extend into the corresponding adjacent first through holes (31). A driving part (8), connected to the sleeve tube (5) and each of the rotating shafts (7) respectively. When the pin (4) is inserted into the sleeve tube (5) and the traction rod (1) is rotated, the driving part (8) causes each of the clamping plates (6) to rotate synchronously and in the same direction.

2. The geological exploration equipment for geological prospecting according to claim 1, characterized in that, Each of the clamping plates (6) is fixedly connected to the corresponding rotating shaft (7) through a fixing ring, and a reinforcing rib plate (14) is fixedly connected to the lower end of each of the clamping plates (6). The lower end of the reinforcing rib plate (14) is fixedly connected to the fixing ring.

3. A geological exploration device for geological prospecting according to claim 1, characterized in that, A cylinder part (9) extends downward from the lower end of the traction rod (1). Second through holes (91) are formed in the cylinder part (9) along the circumferential direction corresponding to the positions of the clamping plates (6). When the clamping plates (6) rotate completely to the outer limit position, the opposite clamping plates (6) are in a parallel state. A support plate (10) is fixedly connected to the lower end of the cylinder part (9). The sleeve tube (5) passes through the support plate (10) and the two are rotatably connected. The lower end of each of the rotating shafts (7) is rotatably connected to the support plate (10).

4. The geological exploration equipment for geological prospecting according to claim 3, characterized in that, A plurality of hollow holes (101) are formed in the support plate (10) in the vertical direction, and plug parts (102) are arranged in the hollow holes (101).

5. A geological exploration device for geological prospecting according to claim 3, characterized in that, The bottom of the support plate (10) is in a conical shape with the middle high and both sides low.

6. The geological exploration equipment for geological prospecting according to claim 3, characterized in that, The axial length of the sleeve tube (5) is longer than the length of the pin (4). A plurality of drain holes (51) are formed in the sleeve tube (5) along its circumferential direction, used for discharging the original flushing liquid in the sleeve tube (5) when the pin (4) is inserted. When the pin (4) extends into the sleeve tube (5), the upper surfaces of the first through holes (31) and the second through holes (91) are at the same height.

7. The geological exploration equipment for geological prospecting according to claim 6, characterized in that, It further includes a sealing plate (11); the sealing plate (11) is fixedly connected above the cylinder part (9). The sealing plate (11), the cylinder part (9) and the traction rod (1) enclose a sealed cavity; each of the rotating shafts (7) and the sleeve tube (5) is rotatably connected to the sealing plate (11), and the upper ends of each of the rotating shafts (7) and the sleeve tube (5) extend into the cavity. The driving part (8) includes a driving gear (81) and a plurality of driven gears (82); the driving gear (81) is fixedly connected to the upper end of the sleeve (5), and each of the driven gears (82) is fixedly connected to the upper end of each of the rotating shafts (7), and each of the driven gears (82) meshes with the driving gear (81).

8. A geological exploration device for geological prospecting according to claim 7, characterized in that, At the positions corresponding to each of the clamping plates (6) at the lower end of the sealing plate (11), stoppers (13) are fixedly connected. When the clamping plates (6) rotate into the cylinder member (9), two adjacent clamping plates (6) are perpendicular to each other in the longitudinal projection.

9. A geological exploration device for geological exploration according to claim 7, characterized in that, At the upper end of each of the clamping plates (6), a limit pin (12) is fixedly connected; an annular groove (32) is provided above the first through hole (31) in the sleeve (3). When each of the clamping plates (6) rotates outward to the limit position, the limit pin (12) is aligned with the annular groove (32). When the height of the clamping plate (6) increases, the limit pin (12) is placed in the corresponding annular groove (32).

10. A geological exploration device for geological prospecting according to claim 9, characterized in that, The top end of the bolt (4) is fixedly connected with a pin member (15). At the side of the top end of the pin member (15), a pressing plate (16) inclined downward to both sides is hinged. The lower end of the pressing plate (16) is hinged with a connecting rod (17). The other end of each connecting rod (17) is hinged with a collar (22). The collar (22) is slidably connected with the pin member (15). A spring (18) is connected to the lower end of the collar (22). A stopper (19) is provided at the lower end of the pin member (15) corresponding to the spring (18), and a stopper (19) for limiting is also provided above the collar on the pin member (15); a horizontal plate (20) is further included, which is fixedly connected inside the sleeve (5). A through hole (201) is provided in the middle of the horizontal plate (20). When the bolt (4) extends into the sleeve (5), each of the pressing plates (16) approaches each other and passes through the through hole (201). After the pressing plate (16) passes through the through hole (201), the maximum distance enclosed by the bottoms of each of the pressing plates (16) is greater than the aperture of the through hole (201). When the limit pin (12) is placed in the annular groove (32), the pressing plate (16) is clamped with the upper surface of the horizontal plate (20).

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