Reamer for geological exploration

Abstract

The utility model discloses a geological prospecting reamer which comprises a drilling rod, a spiral cutter is arranged on the outer side of the drilling rod, a supporting cylinder is detachably arranged above the drilling rod, a plurality of sets of reaming mechanisms are adjustably arranged on the supporting cylinder, the reaming mechanisms are distributed in a staggered mode in the height direction of the supporting cylinder, and the spiral cutter is arranged on the outer side of the drilling rod. A supporting frame is arranged at the upper end of the supporting cylinder in a sleeving mode, a motor is arranged above the supporting frame, and the motor can control the supporting cylinder and the drilling rod to rotate. The hole expanding mechanism is arranged, the state of the hole expanding mechanism can be adjusted according to drilling requirements, the end of the hole expanding plate stably protrudes out of the supporting cylinder, meanwhile, the hole expanding mechanism can synchronously rotate along with the supporting cylinder under the action of the motor, excavation and hole expanding treatment on the hole wall is achieved, and the current situation that the size of an existing hole expanding device is fixed is changed; and the practicability of the reaming device is improved.

Description

Technical Field

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

[0002] Geological exploration is a survey and research activity that uses various means and methods to survey and detect geology, determine the appropriate bearing layer, determine the foundation type based on the bearing capacity of the bearing layer, and calculate the foundation parameters. In geological exploration operations, it is necessary to drill holes in the exploration area.

[0003] In order to improve the efficiency of geological exploration, devices for drilling holes have appeared on the market. However, the diameter of the holes drilled by the current drilling devices is small or not suitable for the work of exploration tools. Therefore, it is sometimes necessary to use a reamer to enlarge the borehole.

[0004] At present, there are many ways to expand the hole, such as manually holding a shovel to dig the side wall of the hole, or using expansion equipment to expand the hole quickly and efficiently. For example, a Chinese patent with patent publication number CN217538579U discloses a reamer for geological exploration, which rotates a threaded sleeve to make it slide downward, and the slide tube presses the expansion rod downward through a connecting rod to achieve expansion. However, the expansion part is conical, and can only expand the upper end of the drill hole, and its scope of use is limited.

[0005] When using the reamer provided by the above patent or other similar reamer, since the reaming diameter of the reamer is fixed, it is inconvenient to expand the hole according to demand, and the practicality is poor. Utility Model Content

[0006] The utility model aims to provide a reamer for geological exploration, aiming to improve the problem that the existing reamer has a fixed diameter and poor practicability.

[0007] The utility model is implemented as follows: a reamer for geological exploration, including a drilling rod, a spiral cutter is arranged on the outer side of the drilling rod, a support tube is detachably arranged above the drilling rod, a plurality of reaming mechanisms are adjustably arranged on the support tube, the plurality of reaming mechanisms are staggered and distributed along the height direction of the support tube, a support frame is sleeved on the upper end of the support tube, a motor is arranged above the support frame, and the motor can control the rotation of the support tube and the drilling rod.

[0008] Preferably, a polygonal groove is provided on the top surface of the drilling rod, a bolt is threadedly provided through the side wall of the polygonal groove, a polygonal column is fixedly provided at the lower end of the support tube, the polygonal column is inserted into the polygonal groove, and the bolt is provided through the polygonal column.

[0009] Preferably, the hole expanding mechanism comprises a sleeve plate, two diagonal support plates and two hole expanding plates, the upper ends of the two diagonal support plates are hinged to the sleeve plate, and the lower ends are respectively hinged to the diagonal support plates.

[0010] Preferably, a plurality of mounting grooves are provided on the side wall of the support tube, the plurality of mounting grooves are grouped in pairs, and the plurality of groups of mounting grooves are staggered and distributed along the height direction of the support tube, the expanding plates of the same group of expanding mechanisms are located in the same group of mounting grooves, and the expanding plates are hinged to the mounting grooves.

[0011] Preferably, a central axis is provided on the inner side of the support tube, a lifting hole is provided on the central axis, a threaded rod is provided on the inner side of the lifting hole, a lifting plate is provided on the inner side of the sleeve plate through a bearing connection, the lifting plate is sleeved on the central axis, and the thread of the threaded rod passes through the lifting plate.

[0012] Preferably, a top frame is arranged above the support tube, a gap is left between the top frame and the support tube, the upper end of the threaded rod protrudes out of the support tube and is located in the gap, and the supporting frame is sleeved on the top frame.

[0013] Preferably, the expansion plate is configured as an arc-shaped structure, and the outer side surface can be located on the same curved surface as the outer circumferential surface of the support tube; a plurality of groups of teeth are arranged on the outer side of the expansion plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is provided with a hole expansion mechanism, which can adjust its own state according to the drilling requirements, so that the end of the hole expansion plate can stably protrude from the support tube. At the same time, it can rotate synchronously with the support tube under the action of the motor to realize the excavation and expansion of the hole wall, which changes the current situation of the fixed size of the existing hole expansion device and improves the practicability of the hole expansion device.

[0016] 2. The utility model is provided with a detachable drilling rod and a supporting tube, and the shape of the device can be changed according to the hole excavation requirements, providing support for the hole expansion mechanism to directly extend into the hole to realize hole expansion processing, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a plane of an embodiment of the utility model;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the three-dimensional structure of the middle drilling rod;

[0019] Figure 3 This utility model Figure 1 A schematic diagram of the three-dimensional structure of the middle support tube;

[0020] Figure 4 This utility model Figure 1Schematic diagram of the structure of the central expansion mechanism and the central axis;

[0021] Figure 5 This utility model Figure 4 A schematic diagram of the three-dimensional structure of the middle hole expansion mechanism;

[0022] Figure 6 This utility model Figure 4 Schematic diagram of the structure of the central axis stereogram.

[0023] In the figure: 1. drilling rod; 11. spiral cutter; 12. polygonal groove; 2. supporting tube; 21. polygonal column; 22. mounting groove; 23. top frame; 3. supporting frame; 4. hole expansion mechanism; 41. hole expansion plate; 42. teeth; 43. diagonal support plate; 44. lifting plate; 45. socket plate; 5. center axis; 51. lifting hole; 52. threaded rod. DETAILED DESCRIPTION

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] like Figure 1 , Figure 2As shown, a reamer for geological exploration includes a drilling rod 1, a support tube 2, a support frame 3 and a reaming mechanism 4. The lower end of the drilling rod 1 is set as a conical structure, and a spiral cutter 11 is set on the outer side. The support tube 2 is detachably set above the drilling rod 1. Multiple groups of reaming mechanisms 4 are staggered and distributed along the height direction of the support tube 2. The support frame 3 is connected and sleeved on the top of the support tube 2 through a bearing, and a motor is set on the support frame 3. The output shaft of the motor is connected to the support tube 2. Therefore, when drilling is required for geological exploration, the staff holds the support frame 3 to stably support the drilling rod 1 and the support tube 2 on the ground, and connects the motor to the battery pack. Through the operation of the motor, the support tube 2 is controlled to drive the drilling rod 1 to rotate at a high speed, thereby realizing the excavation of the hole. When the hole needs to be expanded, the state of the reaming mechanism 4 is adjusted so that one end of it protrudes from the support tube 2 and is stably set, and the drilling rod 1 is disassembled to be separated from the support tube 2. The lower end of the support tube 2 is placed on the upper end of the hole, and the motor drives the support tube 2 and the hole expanding mechanism 4 to rotate at high speed, thereby expanding the hole. Since the state of the hole expanding mechanism 4 is adjustable, the hole can be expanded to different diameters according to needs, which changes the current status of the fixed size of the hole expanding device and improves the practicality of the hole expanding device.

[0028] like Figure 2 , Figure 3 As shown, in order to realize the detachable connection between the drilling rod 1 and the support tube 2, a polygonal groove 12 is provided on the top surface of the drilling rod 1, and a bolt is provided through the side wall of the polygonal groove 12, and a polygonal column 21 is fixedly provided at the lower end of the support tube 2, and the polygonal column 21 is inserted into the polygonal groove 12, and the bolt is provided through the polygonal column 21. When the support tube 2 and the drilling rod 1 need to be disassembled, the staff rotates the bolt to release the restriction of the polygonal column 21 and the polygonal groove 12 to make the drilling rod 1 detach from the support tube 2, and vice versa, the support tube 2 and the drilling rod 1 are stably connected. With the cooperation of the polygonal groove 12 and the polygonal column 21, the drilling rod 1 and the support tube 2 can be stably connected to realize their synchronous rotation.

[0029] like Figure 4 , Figure 5 , Figure 6As shown, in order to expand the hole through the hole expansion mechanism 4, the hole expansion mechanism 4 includes a sleeve plate 45, two diagonal support plates 43 and two hole expansion plates 41. The upper ends of the two diagonal support plates 43 are hinged to the sleeve plate 45, and the lower ends are respectively hinged to the diagonal support plates 43. Multiple groups of teeth 42 are arranged on the outer side of the hole expansion plate 41, and a lifting plate 44 is arranged on the inner side of the sleeve plate 45 through a bearing. A central shaft 5 is arranged on the inner side of the multiple groups of hole expansion mechanisms 4, and a lifting hole 51 is arranged on the central shaft 5. A threaded rod 52 is arranged on the inner side of the lifting hole 51. The lifting plate 44 is sleeved on the central shaft 5, and the threaded rod 52 is threaded through the lifting plate 44. When the state of the hole expansion mechanism 4 needs to be changed, the staff rotates the threaded rod 52 to force the lifting plate 44 to descend, change the inclination angle of the diagonal support plate 43, and then control the hole expansion plate 41 to rotate around the axis so that its end protrudes out of the support tube 2. When the hole expanding plate 41 rotates around the axis, the diagonal support plate 43 pulls the sleeve plate 45 to rotate relative to the lifting plate 44 .

[0030] like Figure 3 , Figure 4 As shown, in order to stably install the reaming plate 41 on the support tube 2, a plurality of mounting grooves 22 are provided on the side wall of the support tube 2, and the plurality of mounting grooves 22 form a group in pairs, and the plurality of mounting grooves 22 are staggered and distributed along the height direction of the support tube 2, and the reaming plates 41 of the same group of reaming mechanisms 4 are located in the same group of mounting grooves 22, and the end of the reaming plate 41 is hinged to the end wall of the mounting groove 22, and in addition, the reaming plate 41 and the mounting groove 22 are provided with inclined surfaces that can fit each other at one end that is not hinged, so that the reaming plate 41 can be stably installed in the mounting groove 22, and the reaming plate 41 is set to an arc structure, and the outer side surface can be located on the same curved surface as the outer circumferential surface of the support tube 2. Because the plurality of reaming mechanisms 4 are staggered up and down, the teeth 42 of the plurality of reaming mechanisms 4 can be set to different sizes, that is, from bottom to top, the size of the teeth 42 gradually increases, and efficient and rapid reaming processing can be achieved with the cooperation of the plurality of reaming mechanisms 4.

[0031] like Figure 1 , Figure 3 As shown, in order to facilitate the staff to rotate the central axis 5, a top frame 23 is arranged above the support tube 2, a gap is left between the top frame 23 and the support tube 2, the central axis 5 is arranged in the support tube 2, the upper end of the threaded rod 52 protrudes out of the support tube 2 and is located in the gap, and the support frame 3 is sleeved on the top frame 23. When the state of the reaming mechanism 4 needs to be adjusted, the staff can put their palm into the gap and hold the upper end of the threaded rod 52 to rotate it.

[0032] Example 2

[0033] like Figure 1 , Figure 2As shown, a reamer for geological exploration includes a drilling rod 1, a support tube 2, a support frame 3 and a reaming mechanism 4. The lower end of the drilling rod 1 is set as a conical structure, and a spiral cutter 11 is set on the outer side. The support tube 2 is detachably set above the drilling rod 1. Multiple groups of reaming mechanisms 4 are staggered and distributed along the height direction of the support tube 2. The support frame 3 is connected and sleeved on the top of the support tube 2 through a bearing, and a motor is set on the support frame 3. The output shaft of the motor is connected to the support tube 2. Therefore, when drilling is required for geological exploration, the staff holds the support frame 3 to stably support the drilling rod 1 and the support tube 2 on the ground, and connects the motor to the battery pack. Through the operation of the motor, the support tube 2 is controlled to drive the drilling rod 1 to rotate at a high speed, thereby realizing the excavation of the hole. When the hole needs to be expanded, the state of the reaming mechanism 4 is adjusted so that one end of it protrudes from the support tube 2 and is stably set, and the drilling rod 1 is disassembled to be separated from the support tube 2. The lower end of the support tube 2 is placed on the upper end of the hole, and the motor drives the support tube 2 and the hole expanding mechanism 4 to rotate at high speed, thereby expanding the hole. Since the state of the hole expanding mechanism 4 is adjustable, the hole can be expanded to different diameters according to needs, which changes the current status of the fixed size of the hole expanding device and improves the practicality of the hole expanding device.

[0034] like Figure 2 , Figure 3 As shown, in order to realize the detachable connection between the drilling rod 1 and the support tube 2, a polygonal groove 12 is provided on the top surface of the drilling rod 1, and a bolt is provided through the side wall of the polygonal groove 12, and a polygonal column 21 is fixedly provided at the lower end of the support tube 2, and the polygonal column 21 is inserted into the polygonal groove 12, and the bolt is provided through the polygonal column 21. When the support tube 2 and the drilling rod 1 need to be disassembled, the staff rotates the bolt to release the restriction of the polygonal column 21 and the polygonal groove 12 to make the drilling rod 1 detach from the support tube 2, and vice versa, the support tube 2 and the drilling rod 1 are stably connected. With the cooperation of the polygonal groove 12 and the polygonal column 21, the drilling rod 1 and the support tube 2 can be stably connected to realize their synchronous rotation.

[0035] like Figure 4 , Figure 5 , Figure 6 As shown, in order to expand the hole through the reaming mechanism 4, the reaming mechanism 4 includes a sleeve plate 45, two telescopic cylinders (such as electric cylinders) and two reaming plates 41. The upper ends of the two telescopic cylinders are hinged to the sleeve plate 45, and the lower ends are respectively hinged to the diagonal support plates 43. Multiple groups of teeth 42 are arranged on the outer side of the reaming plate 41. The inner side of the multiple groups of reaming mechanisms 4 is provided with a central shaft 5, and the lifting plate 44 is sleeved on the central shaft 5. When the state of the reaming mechanism 4 needs to be changed, the telescopic cylinder is controlled to work, which can drive the reaming plate 41 to rotate around the axis, so that its end protrudes out of the support tube 2 and is stably placed.

[0036] like Figure 3 , Figure 4 As shown, in order to stably install the reaming plate 41 on the support tube 2, a plurality of mounting grooves 22 are provided on the side wall of the support tube 2, and the plurality of mounting grooves 22 form a group in pairs, and the plurality of mounting grooves 22 are staggered and distributed along the height direction of the support tube 2, and the reaming plates 41 of the same group of reaming mechanisms 4 are located in the same group of mounting grooves 22, and the end of the reaming plate 41 is hinged to the end wall of the mounting groove 22, and in addition, the reaming plate 41 and the mounting groove 22 are provided with mutually fitting inclined surfaces at one end that is not hinged, so that the reaming plate 41 can be stably installed in the mounting groove 22, and the reaming plate 41 is provided with an arc structure, and the outer side surface can be located on the same curved surface as the outer circumferential surface of the support tube 2. Because the plurality of reaming mechanisms 4 are staggered up and down, the plurality of telescopic rods can be controlled to extend to different sizes, so that the plurality of reaming plates 41 extend out of the support tube 2 to different sizes, that is, from bottom to top, the protruding size of the reaming plate 41 gradually increases, and efficient and rapid reaming processing can be achieved with the cooperation of the plurality of reaming mechanisms 4.

[0037] like Figure 1 , Figure 3 As shown, in order to facilitate the staff to rotate the central axis 5, a top frame 23 is arranged above the support tube 2, a gap is left between the top frame 23 and the support tube 2, the central axis 5 is arranged in the support tube 2, the upper end of the threaded rod 52 protrudes out of the support tube 2 and is located in the gap, and the support frame 3 is sleeved on the top frame 23. When the state of the reaming mechanism 4 needs to be adjusted, the staff can put their palm into the gap and hold the upper end of the threaded rod 52 to rotate it.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hole expander for geological exploration, characterized in that: The invention comprises a drilling rod (1), the outer side of the drilling rod (1) is provided with a spiral cutter (11), a support tube (2) is detachably provided above the drilling rod (1), a plurality of mounting grooves (22) are provided on the side wall of the support tube (2), the plurality of mounting grooves (22) are formed into a group in pairs, and the plurality of groups of mounting grooves (22) are staggered and distributed along the height direction of the support tube (2); the support tube (2) is adjustable with a plurality of groups of reaming mechanisms (4), the reaming mechanisms (4) comprising a sleeve plate (45), two An inclined support plate (43) and two hole expansion plates (41), the upper ends of the two inclined support plates (43) are hingedly arranged with the sleeve plate (45), and the lower ends are respectively hingedly arranged with the inclined support plates (43); the hole expansion plates (41) of the same group of hole expansion mechanisms (4) are located in the same group of mounting grooves (22), and the hole expansion plates (41) are hingedly arranged with the mounting grooves (22); a support frame (3) is sleeved on the upper end of the support tube (2), and a motor is arranged above the support frame (3), and the motor can control the rotation of the support tube (2) and the drilling rod (1).

2. A reamer for geological exploration according to claim 1, characterized in that: The top surface of the drilling rod (1) is provided with a polygonal groove (12), and a bolt is threadedly provided through the side wall of the polygonal groove (12). A polygonal column (21) is fixedly provided at the lower end of the support tube (2), and the polygonal column (21) is inserted into the polygonal groove (12), and the bolt is provided through the polygonal column (21).

3. A reamer for geological exploration according to claim 2, characterized in that: A central axis (5) is arranged on the inner side of the support tube (2), a lifting hole (51) is arranged on the central axis (5), a threaded rod (52) is arranged on the inner side of the lifting hole (51), a lifting plate (44) is arranged on the inner side of the sleeve plate (45) via a bearing, the lifting plate (44) is sleeved on the central axis (5), and the threaded rod (52) is threadedly penetrated through the lifting plate (44).

4. A reamer for geological exploration according to claim 3, characterized in that: A top frame (23) is arranged above the support tube (2), a gap is left between the top frame (23) and the support tube (2), the upper end of the threaded rod (52) protrudes out of the support tube (2) and is located in the gap, and the supporting frame (3) is sleeved on the top frame (23).

5. A reamer for geological exploration according to claim 3, characterized in that: The expansion plate (41) is configured as an arc-shaped structure, and the outer side surface can be located on the same curved surface as the outer circumferential surface of the support tube (2); and a plurality of groups of teeth (42) are provided on the outer side of the expansion plate (41).

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