A hole expander for geological exploration

Abstract

The invention discloses a reamer for geological exploration, which relates to the technical field of geological exploration, and solves the problem that the reaming diameter of the reaming drill bit is relatively fixed and cannot be flexibly adjusted according to needs, and the drainage pipe cannot cooperate with the reaming drill bit more efficiently and penetrate into the hole. The reamer includes a support frame mechanism, a water injection reaming mechanism, a balance sensing mechanism and a stabilizing mechanism; wherein the water injection reaming mechanism includes: a reaming assembly and a water injection assembly; in the present invention, the slide plate can be driven to rise or fall by the provided cylinder, so that the sleeve rises or falls accordingly, and under the action of the articulated rod, the reaming drill bit can present different inclination angles, which can meet the requirements of realizing real-time adjustment of the inclination angle of the reaming drill bit during the drilling process, thereby adjusting the aperture size of the final hole, which is more conducive to practical use and has a good use effect.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, in particular to a hole expander for geological exploration. Background Art

[0002] Geological exploration is the investigation and research activity of exploring and detecting the geology through various means and methods, determining the appropriate bearing layer, determining the foundation type according to the bearing capacity of the foundation of the bearing layer, and calculating the foundation parameters. It is to find out the industrially significant ore deposits in the mineral survey, to find out the quality and quantity of the minerals, as well as the technical conditions for mining and utilization, to provide the mineral reserves and geological data required for mine construction design, and to investigate and study the geological conditions such as rocks, strata, structures, minerals, hydrology, and landforms in a certain area. In the process of geological exploration, it is necessary to first perform drilling operations, then expand the holes, and finally conduct exploration operations on the corresponding geology. When expanding the holes, the motor bracket and the motor are placed on the ground.

[0003] The existing Chinese patent application with publication number CN116575865A3 discloses a geological reamer, including a center plate, a motor is fixedly connected to the lower side of the body, a reaming drill is installed on the output shaft of the motor, a plurality of rotating grooves are circumferentially provided on the lower side of the center plate, a plurality of the rotating grooves are transparently provided on the side away from the center plate, a rotating rod is rotatably connected in the plurality of rotating grooves, a telescopic rod is fixedly connected to the lower side of the rotating rod, the telescopic rod is penetrated through the rotating groove, a return rod is rotatably sleeved on the lower side of the telescopic rod, the return rod is penetrated through the telescopic rod, a contact plate is fixedly connected to the lower side of the return rod, a plug plate is provided on the lower side of the contact plate, a plurality of plug rods are fixedly connected to the lower side of the plug plate, and two threaded rods are symmetrically fixedly connected to the upper side of the plug plate. The invention can well complete the support and adjustment operation of the entire device, is stable and reliable, easy to operate, and has good practical effect.

[0004] However, the reamer has the following defects when used:

[0005] 1. The reaming diameter of the reaming drill bit in the reamer is relatively fixed, and it is impossible to flexibly adjust the reaming diameter according to needs, which greatly limits its use; and when the reamer uses a drainage pipe for water injection, since the drainage pipe is arranged above the reaming drill bit, as the reaming drill bit goes deeper, the drainage pipe is always above the soil, and it is impossible to cooperate with the reaming drill bit more efficiently and go deep into the hole, resulting in a large waste of water resources during the water injection operation, and the use effect still needs to be improved;

[0006] 2. The reamer cannot ensure the balance of the reaming drill bit during the reaming operation, resulting in that once the supporting structure outside the entire device is skewed during use, the reaming drill bit will be skewed, affecting the specific drilling effect and causing unnecessary losses. Summary of the invention

[0007] The object of the present invention is to provide a reamer for geological exploration to solve the problems raised in the above-mentioned background technology.

[0008] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0009] The present invention provides a reamer for geological exploration, comprising:

[0010] Support frame mechanism, water injection and hole expansion mechanism, balance sensing mechanism and stabilization mechanism; wherein:

[0011] The water injection hole expansion mechanism comprises: a hole expansion component and a water injection component;

[0012] The reaming assembly includes a motor, a rotating shaft, a rotating drum and a probing drill bit; the output end of the motor is connected to the center of the top of the rotating shaft, the bottom of the rotating shaft is fixed to the top of the rotating drum, and the bottom of the rotating drum is fixed to the top of the probing drill bit;

[0013] The reaming assembly also includes a reaming drill bit hinged to the inside of the rotating cylinder at equal intervals along the circumferential direction of the rotating cylinder, and one side of the reaming drill bit extends to the outside of the rotating cylinder in an inclined state and is provided with a drill cutter; a cylinder is installed at the inner top end of the rotating cylinder, and the output end of the cylinder is connected to a slide plate, and a sleeve is fixed at the bottom center of the slide plate, and the outside of the sleeve is hinged with a hinge rod corresponding to and aligned with the reaming drill bit one by one along its circumferential direction, and the end of the hinge rod is hinged to the reaming drill bit; a vertical rod is fixed at the center of the inner bottom end of the rotating cylinder, and the top end of the vertical rod passes through the middle of the sleeve and the middle of the slide plate, and is slidably sleeved between the sleeve and the slide plate.

[0014] Furthermore, the water injection assembly comprises:

[0015] An annular cylinder and a water pump, wherein:

[0016] An annular cavity and an arc-shaped cavity are provided inside the annular cylinder; the water pump is installed inside the arc-shaped cavity, and the output end of the water pump is connected to a water outlet pipe, and the output end of the water pump is connected to a water inlet pipe, and the end of the water inlet pipe extends to the inside of the annular cavity.

[0017] Furthermore, the water injection assembly further comprises an inner cylinder arranged inside the annular cylinder, and the inner cylinder is provided with a first chamber and a second chamber in sequence from top to bottom, and the end of the water outlet pipe extends to the inside of the second chamber;

[0018] The motor is installed inside the first chamber, and the rotating shaft passes through the second chamber and extends to the inside of the first chamber.

[0019] Further, a T-shaped hole is provided inside the rotating shaft, a passage is provided inside the vertical rod, a first cavity and a second cavity connected to the first cavity are provided inside the reaming drill bit, and a plurality of through holes connected to the second cavity are provided on a side of the reaming drill bit facing the drill bit;

[0020] A first connecting pipe is provided at the top end of the vertical rod, and the first connecting pipe is used to connect the T-shaped hole and the channel;

[0021] A second connecting pipe is connected between the reaming drill bit and the vertical rod, and the second connecting pipe is used to connect the channel and the first opening.

[0022] Furthermore, the support frame mechanism comprises:

[0023] Base plates, top plates and pillars;

[0024] The bottom plate and the top plate are fixed by pillars;

[0025] The top of the annular cylinder is fixed to the bottom of the top plate, and the top plate is provided with a liquid inlet connected to the inside of the annular cavity.

[0026] Furthermore, the top plate and the inner cylinder are connected via a lifting assembly, and the lifting assembly includes:

[0027] Electric telescopic rod, annular body and guide rod;

[0028] The fixed end of the electric telescopic rod is fixed at the center of the bottom of the top plate, and the output end of the electric telescopic rod is connected to the top of the inner tube; the bottom of the annular body is fixed to the top of the inner tube, the top of the guide rod is fixed to the bottom of the top plate, and the bottom end of the guide rod passes through the annular body and is slidably connected with the annular body.

[0029] Furthermore, the side of the rotary drum is provided with openings at equal intervals, which correspond to and align with the reaming drill bits one by one, and elastic sealing pads are provided inside the openings;

[0030] The side edge of the slide plate is provided with a butt joint line, and the side edge of the rotating drum is provided with a scale line matched with the butt joint line.

[0031] Furthermore, the stabilizing mechanism is arranged at equal intervals along the circumferential direction of the bottom plate, and specifically comprises:

[0032] Plunger, barb, and swivel cap;

[0033] The bottom of the insertion rod is a conical structure, and a cylindrical cavity is opened inside the insertion rod; the barbs are arranged in a circumferential array outside the insertion rod, and one end of the barb penetrates into the cylindrical cavity and is connected to a connecting column.

[0034] Furthermore, an annular groove is provided inside the rotating cap, and the top of the plug rod is inserted into the annular groove and is threadedly connected to the annular groove;

[0035] The bottom of the rotating cap is rotatably connected with a rectangular column, and a truncated cone block is fixed on the bottom of the rectangular column, and the side edge of the truncated cone block and the connecting column cooperate with each other.

[0036] Furthermore, the balance sensing mechanism includes a fixing box fixed at the top center of the top plate, and the cross section of the fixing box is a circular structure;

[0037] At least four trigger components are arranged at equal intervals inside the fixed box along its circumferential direction, and a connecting ball is arranged at the center of the fixed box. An electromagnet matching with the connecting ball is arranged at the center of the inner bottom end of the fixed box, and the connecting ball is made of iron;

[0038] The trigger assembly includes a pressure sensor installed on the inner wall of the fixing box, and a trigger block connected to the output end of the pressure sensor; the outside of the fixing box is provided with a display light that matches the pressure sensor one by one.

[0039] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0040] 1. When the reamer for geological exploration is reaming, the cylinder can drive the slide plate to rise or fall, so that the sleeve rises or falls accordingly. Under the action of the hinged rod, the reaming drill bit can present different inclination angles, which can meet the requirements of adjusting the inclination angle of the reaming drill bit in real time during the drilling process, thereby adjusting the aperture size of the final hole, which is more conducive to practical use and has a good use effect;

[0041] 2. When the reamer for geological exploration is reaming, the water in the annular cavity can be transported to the inside of the second cavity through the water pump, and then the water is finally sprayed out from the through hole under the effect of the T-hole, the first connecting pipe, the channel, the second connecting pipe, the first opening cavity and the second opening cavity being interconnected. When the reaming drill bit and the drill bit are used for rotating reaming, the water flow sprayed through the through hole can spray the reaming portion in real time, so as to better perform the reaming operation. Moreover, this design can enable the reaming drill bit to achieve the "self-spraying water" effect. No matter to what depth the reaming drill bit is expanded, the through hole can be used to spray the reaming portion, which effectively ensures the spraying efficiency during reaming and avoids excessive waste of water resources, killing two birds with one stone and improving the overall reaming effect.

[0042] 3. When the soil at the hole to be expanded is relatively soft or difficult to stabilize, the reamer for geological exploration can be rotated by rotating the rotating cap. Under the action of the thread, the rectangular column will drive the truncated cone block to descend. Since the inclined surface on the truncated cone block cooperates with the connecting column, when the truncated cone block descends, the connecting column will drive the barb to move outside the insertion rod, thereby making the barb penetrate deeper into the soil, thereby improving the stabilizing effect of the entire stabilizing mechanism. In the initial state, more parts of the barb will be inside the insertion rod, so as to reduce the resistance of the insertion rod when it is inserted into the soil in the initial state;

[0043] 4. When the reamer for geological exploration is in use, once the entire support frame mechanism tilts, the top plate will drive the fixed box to tilt as well. In the initial state, the electromagnet is energized and adsorbs the connecting ball, and the connecting ball is kept in the center of the fixed box. When tilting occurs and the tilt angle is too large, the connecting ball will overcome the magnetic force of the electromagnet and detach from the electromagnet. It will roll in the tilt direction and trigger the trigger block. The trigger block will feed back the force resisted at this time to the pressure sensor. After the pressure sensor detects the pressure within a certain threshold, it uses the existing circuit technology to make the corresponding display light flash, thereby telling people that the entire device is in a tilted state at this time; and the electromagnet can adjust its magnetic force through the set electromagnet, and the pressure sensor can also adjust its trigger threshold, thereby ensuring that the entire device can be used within a reasonable angle range, meeting different construction needs, and improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0045] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 is a longitudinal cross-sectional view of the support frame mechanism of the present invention;

[0048] Figure 3 is a longitudinal cross-sectional view of the water injection hole expansion mechanism of the present invention;

[0049] Figure 4It is a schematic diagram of the internal structure of the annular cylinder and the inner cylinder of the present invention;

[0050] Figure 5 Schematic diagram of the structure of the hole expansion assembly of the present invention in two states;

[0051] Figure 6 is a longitudinal cross-sectional view of the hole expansion assembly of the present invention;

[0052] Figure 7 The present invention Figure 6 Schematic diagram of the planar structure;

[0053] Figure 8 The present invention Figure 7 The enlarged view of point A in the middle;

[0054] Fig. 9 is a longitudinal cross-sectional view of the vertical rod and the reaming drill bit of the present invention;

[0055] Fig.10 is a longitudinal cross-sectional view of the stabilizing mechanism of the present invention;

[0056] Fig.11 It is a schematic diagram of the internal structure of the plug rod of the present invention;

[0057] Fig.12 The present invention Fig.11 The enlarged view of point B in the middle;

[0058] Fig.13 The present invention Fig.11 Enlarged view of point C in the middle;

[0059] Fig.14 It is a structural schematic diagram of the balance sensing mechanism of the present invention;

[0060] Fig.15 is a transverse cross-sectional view of a fixing box of the present invention;

[0061] In the figure:

[0062] 1. Support frame mechanism; 11. Bottom plate; 12. Support column; 13. Top plate; 131. Liquid inlet;

[0063] 2. Water injection and hole expansion mechanism;

[0064] 21. reaming assembly; 210. motor; 211. rotating shaft; 2111. T-shaped hole; 212. rotating drum; 2121. opening hole; 213. drilling bit; 214. cylinder; 215. slide plate; 216. sleeve; 217. vertical rod; 2171. channel; 218. hinged rod; 219. reaming drill bit; 2191. first opening cavity; 2192. second opening cavity; 2193. through hole; 2194. drill bit;

[0065] 22, water injection assembly; 221, annular cylinder; 2211, annular cavity; 2212, arc cavity; 222, water pump; 223, water inlet pipe; 224, water outlet pipe; 225, inner cylinder; 2251, first chamber; 2252, second chamber;

[0066] 23. lifting assembly; 231. electric telescopic rod; 232. annular body; 233. guide rod;

[0067] 24. A first connecting pipe;

[0068] 25. Second connecting pipe;

[0069] 26. Elastic sealing gasket;

[0070] 27. Docking line;

[0071] 28. Graduation line;

[0072] 3. Balance sensing mechanism; 31. Fixing box; 32. Trigger assembly; 321. Trigger block; 322. Pressure sensor; 323. Display light; 33. Connecting ball; 34. Electromagnet;

[0073] 4. Stabilizing mechanism; 41. Insertion rod; 411. Cylindrical cavity; 42. Barb; 43. Rotating cap; 431. Annular groove; 44. Rectangular column; 45. Frustum block; 46. Connecting column. DETAILED DESCRIPTION

[0074] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0075] See also Figure 1 - Fig.15 , a hole expander for geological exploration, comprising:

[0076] Support frame mechanism 1, water injection and hole expansion mechanism 2, balance sensing mechanism 3 and stabilization mechanism 4; wherein:

[0077] The water injection hole expansion mechanism 2 includes: a hole expansion component 21 and a water injection component 22;

[0078] The hole expansion assembly 21 includes a motor 210, a rotating shaft 211, a rotating drum 212, and a probe drill 213; the output end of the motor 210 is connected to the center of the top of the rotating shaft 211, the bottom of the rotating shaft 211 is fixed to the top of the rotating drum 212, and the bottom of the rotating drum 212 is fixed to the top of the probe drill 213;

[0079] The reaming assembly 21 also includes a reaming drill bit 219 hinged to the inside of the rotating drum 212 at equal intervals along the circumferential direction of the rotating drum 212, and one side of the reaming drill bit 219 extends to the outside of the rotating drum 212 in an inclined shape and is provided with a drill cutter 2194; a cylinder 214 is installed at the inner top end of the rotating drum 212 (the air pipe or connecting wire on the cylinder 214 can be anti-entangled by using a rotating joint according to actual conditions, which is a prior art and will not be described in detail in this embodiment), and the output end of the cylinder 214 is connected to There is a slide plate 215, and a sleeve 216 is fixed at the bottom center of the slide plate 215, and a hinge rod 218 corresponding to and aligned with the reaming drill bit 219 is hinged on the outside of the sleeve 216 along its circumferential direction, and the end of the hinge rod 218 is hinged to the reaming drill bit 219; a vertical rod 217 is fixed at the center of the inner bottom end of the rotating cylinder 212, and the top end of the vertical rod 217 passes through the middle of the sleeve 216 and the middle of the slide plate 215, and is sleeved and slidable between the sleeve 216 and the slide plate 215;

[0080] The slide plate 215 can be raised or lowered by the cylinder 214. Figure 5 , Figure 6 and Figure 7 As shown, Figure 5 Figure (a) in Figure 6 Figure (a) and Figure 7 Figure (a) in the figure is a schematic diagram of the state structure of the reaming drill bit 219 when the slide plate 215 is at the highest limit position, and Figure 5 Figure (b) in Figure 6 Figure (b) and Figure 7 The (b) diagrams are schematic diagrams of the state structure of the reaming drill bit 219 when the slide plate 215 is at the lowest limit position; when the slide plate 215 is driven to rise or fall by the cylinder 214, the sleeve 216 rises or falls accordingly, and under the action of the hinge rod 218, the reaming drill bit 219 can present different inclination angles, which can meet the requirements of adjusting the inclination angle of the reaming drill bit 219 in real time during the drilling process, and then adjusting the aperture size of the final hole 2121, which is more conducive to actual use and has a good use effect;

[0081] Specifically, the cylinder 214 is controlled by an external PLC (Programmable Logic Controller), so that the switch control of the solenoid valve on the cylinder 214 is realized by programming.

[0082] In this embodiment, the water injection assembly 22 includes:

[0083] Annular cylinder 221 and water pump 222, wherein:

[0084] An annular cavity 2211 and an arc-shaped cavity 2212 are provided inside the annular cylinder 221; the water pump 222 is installed inside the arc-shaped cavity 2212, and the output end of the water pump 222 is connected to a water outlet pipe 224, which is a hose; the output end of the water pump 222 is connected to a water inlet pipe 223, and the end of the water inlet pipe 223 extends to the inside of the annular cavity 2211.

[0085] In this embodiment, the water injection assembly 22 further includes an inner cylinder 225 disposed inside the annular cylinder 221, and the inner cylinder 225 is provided with a first chamber 2251 and a second chamber 2252 in sequence from top to bottom, and the end of the water outlet pipe 224 extends to the inside of the second chamber 2252;

[0086] The motor 210 is installed inside the first chamber 2251, and the rotating shaft 211 passes through the second chamber 2252 and extends to the inside of the first chamber 2251. The penetration of the rotating shaft 211 is a sealed rotating connection, which can be matched and connected by a sealed bearing. Therefore, when in use, after starting the motor 210, the motor 210 drives the rotating shaft 211 to rotate, so that the rotating shaft 211 drives the rotating drum 212, the probe drill bit 213 and the reaming drill bit 219 to rotate. The probe drill bit 213 is provided with a spiral groove, and its conical structure can be used to pre-drill the hole 2121 in the area to be drilled 2121, and then the entire volume of the reaming drill bit 219 is larger than the probe drill bit 213, so that the hole originally pre-drilled 2121 can be further enlarged, so that the drilled hole is drilled in a step-by-step manner, which is more conducive to the formation of the final hole and improves the drilling 2121 effect.

[0087] In this embodiment, a T-shaped hole 2111 is formed inside the rotating shaft 211, a channel 2171 is formed inside the vertical rod 217, a first cavity 2191 and a second cavity 2192 communicating with the first cavity 2191 are formed inside the reaming drill bit 219, and a plurality of through holes 2193 communicating with the second cavity 2192 are formed on one side of the reaming drill bit 219 facing the drill bit 2194;

[0088] A first connecting pipe 24 is disposed at the top of the vertical rod 217, and the first connecting pipe 24 is used to connect the T-shaped hole 2111 and the channel 2171;

[0089] A second connecting pipe 25 is connected between the reaming drill bit 219 and the vertical rod 217, and the second connecting pipe 25 is used to connect the channel 2171 and the first opening 2191;

[0090] In this embodiment, the support frame mechanism 1 includes:

[0091] A bottom plate 11, a top plate 13 and a support column 12;

[0092] The bottom plate 11 and the top plate 13 are fixed by pillars 12;

[0093] The top of the annular cylinder 221 is fixed to the bottom of the top plate 13, and a liquid inlet 131 communicating with the interior of the annular cavity 2211 is provided on the top plate 13; liquid (such as water) is replenished inside the annular cavity 2211 through the provided liquid inlet 131, and in the present embodiment, the entire structure of the annular cylinder 221 is a transparent plastic structure.

[0094] Therefore, in summary, and based on Figure 4 , Figure 7 and Fig. 9 It can be seen that after a certain volume of water is injected into the annular cavity 2211, the water pump 222 is started by starting the external switch or the button on the control panel, so that the water pump 222 starts to work. At this time, the water pump 222 can use the water inlet pipe 223 and the water outlet pipe 224 to transport the water in the annular cavity 2211 to the inside of the second chamber 2252, and then under the action of the T-hole 2111, the first connecting pipe 24, the channel 2171, the second connecting pipe 25, the first cavity 2191 and the second cavity 2192 are connected to each other, and finally sprayed out from the through hole 2193. Please refer to Figure 6 and Fig. 9 The drill bit 2194 is arranged in an inclined shape, and a clearance gap is reserved in the middle of the drill bit 2194, and the through hole 2193 is located inside the clearance gap. Therefore, when the reaming drill bit 219 and the drill bit 2194 are used for rotational reaming, the water flow sprayed through the through hole 2193 can spray the reaming part in real time, so as to better perform the reaming operation. Moreover, this design can enable the reaming drill bit 219 to achieve a "self-spraying water" effect. No matter to what depth the reaming drill bit 219 is expanded, the through hole 2193 can be used to spray the reaming part, which not only effectively ensures the spraying efficiency during reaming, but also avoids excessive waste of water resources, killing two birds with one stone and improving the overall reaming effect.

[0095] In this embodiment, the top plate 13 and the inner tube 225 are connected via a lifting assembly 23, and the lifting assembly 23 includes:

[0096] An electric telescopic rod 231, a ring body 232 and a guide rod 233;

[0097] The fixed end of the electric telescopic rod 231 is fixed to the center of the bottom of the top plate 13, and the output end of the electric telescopic rod 231 is connected to the top of the inner cylinder 225; the bottom of the annular body 232 is fixed to the top of the inner cylinder 225, the top of the guide rod 233 is fixed to the bottom of the top plate 13, and the bottom end of the guide rod 233 passes through the annular body 232 and is slidably sleeved between the annular body 232;

[0098] After the electric telescopic rod 231 is started and controlled by the external control panel, the inner cylinder 225 is driven to rise and fall by the electric telescopic rod 231, so as to adjust the rising and falling positions of the inner cylinder 225 and the hole expanding assembly 21, thereby meeting the actual needs of hole expanding; at the same time, during the rising and falling process of the inner cylinder 225, the annular body 232 is able to slide on the guide rod 233, so as to improve the stability of the rising and falling of the entire inner cylinder 225 and the hole expanding assembly 21.

[0099] In this embodiment, the side of the rotating drum 212 is provided with openings 2121 at equal intervals, which correspond to and align with the reaming drill bits 219 one by one, and an elastic sealing pad 26 is provided inside the opening 2121;

[0100] pass Figure 7 and Figure 8 It can be seen that the opening 2121 is connected to the through hole of the reaming drill bit 219, and the opening 2121 has both upper and lower ends, and the end of the elastic sealing pad 26 is bonded to the reaming drill bit 219. When the inclination angle of the reaming drill bit 219 is adjusted, the elastic sealing pad 26 will be stretched or squeezed. Therefore, when the inclination angle of the reaming drill bit 219 is adjusted during the reaming stage, the elastic sealing pad 26 will always ensure the sealing of the entire rotating drum 212, prevent soil and the like from entering the interior of the rotating drum 212, and ensure the cleanliness of the entire reaming assembly 21, which is more conducive to subsequent cleaning.

[0101] In addition, in this embodiment, in order to improve the tilting and stabilizing effect of the reaming drill bit 219, an elastic support pad is bonded to the outside of the vertical rod 217, and the end of the elastic support is bonded to the side of the reaming drill bit 219 near the hinge point to ensure the stability of the entire reaming drill bit 219 and improve its service life. Figure 7 As shown;

[0102] The side of the slide plate 215 is provided with a docking line 27, and the side of the rotating drum 212 is provided with a scale line 28 that matches the docking line 27. In this embodiment, the entire material of the rotating drum 212 can be a transparent plastic material, and the scale line 28 and the docking line 27 are black or red. When the slide plate 215 descends or rises, the inclination angle of the reaming drill bit 219 at this time can be judged by observing the position of the docking line 27 on the scale line 28, which is convenient for adjustment before use.

[0103] In this embodiment, the stabilizing mechanism 4 is arranged at equal intervals along the circumferential direction of the bottom plate 11, and specifically includes:

[0104] Insertion rod 41, barb 42 and rotating cap 43;

[0105] The bottom of the insertion rod 41 is a conical structure, and a cylindrical cavity 411 is opened inside the insertion rod 41; barbs 42 are arranged in a circumferential array outside the insertion rod 41, and one end of the barb 42 penetrates into the cylindrical cavity 411 and is connected to a connecting column 46;

[0106] Combination Fig.11 , Fig.12 and Fig.13 It can be seen that the bottom end of the inserted rod 41 can be effectively inserted into the soil, so as to keep the entire support frame mechanism 1 stable, and the barbs 42 can further enhance the stability after insertion into the soil, thereby ensuring the orderly progress of subsequent hole expansion operations.

[0107] In this embodiment, an annular groove 431 is formed inside the rotating cap 43, and the top of the insertion rod 41 is inserted into the annular groove 431 and is threadedly connected to the annular groove 431;

[0108] The bottom of the rotating cap 43 is rotatably connected to a rectangular column 44, and a truncated cone block 45 is fixed to the bottom of the rectangular column 44, and the side of the truncated cone block 45 cooperates with the connecting column 46;

[0109] When the soil at the hole to be expanded is relatively soft or unstable, the rotating cap 43 can be rotated, and under the action of the thread, the rectangular column 44 will drive the truncated cone block 45 to descend. Fig.13 It can be seen that the inclined surface on the truncated cone block 45 cooperates with the connecting column 46. When the truncated cone block 45 descends, the connecting column 46 will drive the barb 42 to move outside the insertion rod 41, thereby making the barb 42 penetrate deeper into the soil, thereby improving the stabilizing effect of the entire stabilizing mechanism 4. In the initial state, more parts of the barb 42 will be inside the insertion rod 41 to reduce the resistance of the insertion rod 41 when it is inserted into the soil in the initial state.

[0110] In this embodiment, the balance sensing mechanism 3 includes a fixing box 31 fixed at the top center of the top plate 13, and the cross section of the fixing box 31 is a circular structure;

[0111] At least four trigger components 32 are arranged at equal intervals inside the fixed box 31 along its circumferential direction, and a connecting ball 33 is arranged at the center of the fixed box 31. An electromagnet 34 matching with the connecting ball 33 is arranged at the center of the inner bottom end of the fixed box 31. The connecting ball 33 is made of iron.

[0112] The trigger assembly 32 includes a pressure sensor 322 installed on the inner wall of the fixed box 31, and a trigger block 321 connected to the output end of the pressure sensor 322; a display light 323 matching the pressure sensor 322 is arranged outside the fixed box 31;

[0113] according to Fig.15It can be seen that when in use, once the entire support frame mechanism 1 tilts, the top plate 13 drives the fixed box 31 to tilt as well. In the initial state, the electromagnet 34 is energized and adsorbs the connecting ball 33, and the connecting ball 33 is maintained at the center of the fixed box 31. When tilting occurs and the tilting angle is too large, the connecting ball 33 will overcome the magnetic force of the electromagnet 34 and break away from the electromagnet 34. It will roll in the tilting direction and trigger the trigger block 321. The trigger block 321 will feed back the force being resisted at this time to the pressure sensor 322. After the pressure sensor 322 detects the pressure within a certain threshold, it uses the existing circuit technology to make the corresponding display light 323 flash, thereby telling people that the entire device is in a tilted state at this time; and the electromagnet 34 can adjust its magnetic force by setting its magnetic force, and the pressure sensor 322 can also adjust its trigger threshold, thereby ensuring that the entire device can be used within a reasonable angle range, meeting different construction requirements, and improving the scope of application.

[0114] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hole expander for geological exploration, characterized in that: include: A support frame mechanism (1), a water injection hole expansion mechanism (2), a balance sensing mechanism (3) and a stabilizing mechanism (4); wherein: The water injection hole expansion mechanism (2) comprises: a hole expansion component (21) and a water injection component (22); The reaming assembly (21) comprises a motor (210), a rotating shaft (211), a rotating drum (212), and a probing drill bit (213); the output end of the motor (210) is connected to the center of the top end of the rotating shaft (211), the bottom of the rotating shaft (211) is fixed to the top of the rotating drum (212), and the bottom of the rotating drum (212) is fixed to the top of the probing drill bit (213); The reaming assembly (21) further comprises a reaming drill bit (219) hingedly connected to the inside of the rotating cylinder (212) at equal intervals along the circumferential direction of the rotating cylinder (212), and one side of the reaming drill bit (219) extends obliquely to the outside of the rotating cylinder (212) and is provided with a drill bit (2194); a cylinder (214) is installed at the inner top end of the rotating cylinder (212), and a slide plate (215) is connected to the output end of the cylinder (214), and a sleeve (219) is fixed at the bottom center of the slide plate (215). 16), the sleeve (216) is hingedly connected to a hinged rod (218) along its circumferential direction, which corresponds to and is aligned with the reaming drill bit (219), and the end of the hinged rod (218) is hingedly connected to the reaming drill bit (219); a vertical rod (217) is fixed at the center of the inner bottom end of the rotating cylinder (212), and the top end of the vertical rod (217) passes through the middle of the sleeve (216) and the middle of the slide plate (215), and is slidably sleeved between the sleeve (216) and the slide plate (215), Wherein: the side edge of the rotating drum (212) is provided with openings (2121) at equal intervals, which correspond one-to-one and are aligned with the reaming drill bits (219), and an elastic sealing pad (26) is provided inside the opening (2121); The side edge of the slide plate (215) is provided with a butt joint line (27), and the side edge of the rotating drum (212) is provided with a scale line (28) that matches the butt joint line (27). Wherein: the balance sensing mechanism (3) comprises a fixing box (31) fixed at the top center of the top plate (13), and the cross section of the fixing box (31) is a circular structure; At least four trigger components (32) are arranged at equal intervals inside the fixed box (31) along its circumferential direction, and a connecting ball (33) is arranged at the center of the fixed box (31). An electromagnet (34) matching with the connecting ball (33) is arranged at the center of the inner bottom end of the fixed box (31), and the connecting ball (33) is made of iron; The trigger assembly (32) comprises a pressure sensor (322) mounted on the inner wall of the fixing box (31), and a trigger block (321) connected to an output end of the pressure sensor (322); a display light (323) matching one to one with the pressure sensor (322) is arranged outside the fixing box (31).

2. The reamer for geological exploration according to claim 1, characterized in that: The water injection assembly (22) comprises: An annular cylinder (221) and a water pump (222), wherein: An annular cavity (2211) and an arc-shaped cavity (2212) are provided inside the annular cylinder (221); the water pump (222) is installed inside the arc-shaped cavity (2212), and the output end of the water pump (222) is connected to a water outlet pipe (224); the output end of the water pump (222) is connected to a water inlet pipe (223), and the end of the water inlet pipe (223) extends to the inside of the annular cavity (2211).

3. The reamer for geological exploration according to claim 2, characterized in that: The water injection assembly (22) further comprises an inner cylinder (225) arranged inside the annular cylinder (221), and the inner cylinder (225) is provided with a first chamber (2251) and a second chamber (2252) in sequence from top to bottom, and the end of the water outlet pipe (224) extends to the inside of the second chamber (2252); The motor (210) is installed inside the first chamber (2251), and the rotating shaft (211) passes through the second chamber (2252) and extends to the inside of the first chamber (2251).

4. The reamer for geological exploration according to claim 3, characterized in that: The rotating shaft (211) is provided with a T-shaped hole (2111) inside, the vertical rod (217) is provided with a channel (2171) inside, the reaming drill bit (219) is provided with a first cavity (2191) and a second cavity (2192) connected to the first cavity (2191) inside, and the reaming drill bit (219) is provided with a plurality of through holes (2193) connected to the second cavity (2192) on a side facing the drill bit (2194); A first connecting pipe (24) is provided at the top end of the vertical rod (217), and the first connecting pipe (24) is used to connect the T-shaped hole (2111) and the channel (2171); A second connecting tube (25) is connected between the reaming drill bit (219) and the vertical rod (217), and the second connecting tube (25) is used to connect the channel (2171) and the first opening cavity (2191).

5. The reamer for geological exploration according to claim 4, characterized in that: The support frame mechanism (1) comprises: A bottom plate (11), a top plate (13) and a support column (12); The bottom plate (11) and the top plate (13) are fixed via pillars (12); The top of the annular cylinder (221) is fixed to the bottom of the top plate (13), and the top plate (13) is provided with a liquid inlet (131) that is in communication with the interior of the annular cavity (2211).

6. The reamer for geological exploration according to claim 5, characterized in that: The top plate (13) and the inner cylinder (225) are connected via a lifting assembly (23), and the lifting assembly (23) comprises: An electric telescopic rod (231), a ring body (232), and a guide rod (233); The fixed end of the electric telescopic rod (231) is fixed to the center of the bottom of the top plate (13), and the output end of the electric telescopic rod (231) is connected to the top of the inner cylinder (225); the bottom of the annular body (232) is fixed to the top of the inner cylinder (225), the top of the guide rod (233) is fixed to the bottom of the top plate (13), and the bottom end of the guide rod (233) passes through the annular body (232) and is slidably sleeved with the annular body (232).

7. The reamer for geological exploration according to claim 1 or 5, characterized in that: The stabilizing mechanism (4) is arranged at equal intervals along the circumferential direction of the bottom plate (11), and specifically comprises: Insertion rod (41), barbs (42) and rotating cap (43); The bottom of the insertion rod (41) is a conical structure, and a cylindrical cavity (411) is provided inside the insertion rod (41); the barbs (42) are arranged in a circular array outside the insertion rod (41), and one end of the barbs (42) penetrates into the cylindrical cavity (411) and is connected to a connecting column (46).

8. The reamer for geological exploration according to claim 7, characterized in that: An annular groove (431) is provided inside the rotating cap (43), and the top of the insertion rod (41) is inserted into the annular groove (431) and is threadedly connected to the annular groove (431); The bottom of the rotating cap (43) is rotatably connected to a rectangular column (44), and a truncated cone block (45) is fixed to the bottom of the rectangular column (44), and the side of the truncated cone block (45) and the connecting column (46) cooperate with each other.

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