Double-prevention drill rod detection machine

Abstract

The invention relates to the technical field of constructional engineering detection equipment, in particular to a double-prevention drill rod detection machine which comprises a frame body, a crawler walking mechanism and a supporting cross beam. A drill rod; the lifting mechanism comprises a pull rope; the driving mechanism comprises a driving motor, a winding wheel, a ratchet wheel I, an active driving wheel, a ratchet wheel II, a pawl I and a pawl II; the hammering mechanism comprises a transmission chain, a transmission assembly, a shifting plate, a drop hammer and a baffle; the elastic buckling mechanism comprises a connecting shaft, an elastic piece, an eccentric gear, a hammering component, a U-shaped clamp and a connecting plate. According to the equipment, only one driving motor with positive and negative rotation functions is adopted as a driving source for lifting the drop hammer and the drill rod and probe rod, so that the driving and control structure is greatly simplified; the driving motor is mounted at the chassis of the frame body, so that the gravity center height of the whole equipment is obviously reduced, and the anti-overturning capability is improved; the elastic buckle mechanism is adopted to be matched between the hammering mechanism and the drilling and detecting rod, so that the drilling and detecting rod can be stressed to penetrate downwards only in the hammering process, and can be smoothly lifted during lifting.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering detection equipment, in particular to a double-proof drill detector. Background Art

[0002] During the construction process of a building project, drilling is an important means of foundation testing. By driving the drill rod into the foundation soil to a certain depth, the hardness of the foundation soil is judged based on the difficulty of driving (the number of hammer blows), and then the uniformity of the foundation soil and whether there is a weak underlying layer are analyzed.

[0003] The drilling probe machine generally includes a frame, a drilling probe rod, a drilling probe rod lifting motor, a drop hammer and a drop hammer drive motor. The drop hammer is lifted by the drop hammer drive motor, and the drop hammer hits the drilling probe rod, causing the drilling probe rod to penetrate into the foundation soil. Because the drop hammer drive motor and supporting structures are installed on the top of the frame, that is, the center of gravity of the equipment is at the top, it is easy to overturn during movement and operation, especially when encountering the bottom of a slope or uneven ground. There is a problem that the center of gravity of the equipment is too high and the safety is poor during construction and movement. Summary of the Invention

[0004] In order to solve the above problems in the prior art, the present invention provides a double-proof drill detector.

[0005] The present invention provides a dual-proof drill probe machine that adopts the following technical solutions: A double-proof drilling probe machine includes a frame, a crawler walking mechanism is provided at the bottom of the frame, two supporting beams arranged in an upper and lower manner are horizontally provided in the middle of the frame; a drilling probe rod is vertically arranged on one side of the frame; a lifting mechanism includes a pull rope that passes around the top of the frame and is used to lift the drilling probe rod; a driving mechanism includes a driving motor installed on the chassis of the frame, a winding wheel, a ratchet wheel 1, an active driving wheel and a ratchet wheel 2 are provided on the output shaft of the driving motor, the pull rope is connected to the winding wheel, the winding wheel is rotatably connected to the output shaft, the ratchet wheel 1 is fixedly connected to the output shaft, a ratchet 1 that cooperates with the ratchet wheel 1 is installed on the winding wheel, the active driving wheel is rotatably connected to the output shaft, the ratchet wheel 2 is fixedly connected to the output shaft, and a pull rope that cooperates with the ratchet wheel 2 is installed on the active driving wheel Matching pawl 2; hammering mechanism, including a transmission chain for vertical cyclic rotation, a transmission assembly is provided between the transmission chain and the active drive wheel, a shift plate is fixed on the transmission chain, a drop hammer that can only move vertically is provided between the supporting beams, and a baffle that matches the shift plate is fixed on the drop hammer; an elastic snap mechanism, including a connecting shaft and an elastic part for elastically driving the connecting shaft to move upward, an eccentric gear that can only move vertically is provided between the supporting beams, the eccentric gear is rotatably connected to the connecting shaft, a hammering component that matches the drop hammer is fixed on the eccentric gear, a U-shaped clamp is provided on the outer movable sleeve of the drill probe rod, and connecting plates are fixed on the two arms of the U-shaped clamp, and the connecting plates are fixed on the connecting shaft and are located on both sides of the eccentric gear.

[0006] By adopting the above technical solution, this equipment only uses a drive motor with forward and reverse functions as the driving source for the drop hammer lifting and the drill rod lifting, which greatly simplifies the drive and control structure. Compared with the traditional drill probe transmission system that uses two independent motors to control the drop hammer and lift the drill rod respectively, it improves the ease of operation, reduces costs and potential failure points; the drive motor is installed on the chassis of the frame, which significantly reduces the center of gravity height of the entire equipment, and improves the safety, stability and anti-overturning ability of the equipment during operation or movement; an elastic snap mechanism is used to cooperate between the hammer mechanism and the drill rod to ensure that the drill rod is only in the hammering process. The drill rig can be forced to penetrate downward, and during the lifting process it is not affected by the resistance of the elastic clip mechanism, so it is easy to move out of the foundation soil smoothly; when moving the drill rig, due to the use of a wide crawler walking mechanism, the crawler walking mechanism is equipped with an independent drive system, which has excellent traction and can achieve flexible movement back and forth. Compared with traditional drill rigs that use tires, when facing the soft, slippery, and uneven terrain commonly seen on construction sites (such as mud, sand, gravel, and small gullies), they are prone to sinking, skidding, bumping, and even getting stuck. With the center of gravity of the equipment lowered, the grip and stability of the drill rig in complex terrain are significantly improved.

[0007] Optionally, the transmission assembly includes two fixed shafts that are transversely fixed in the frame and arranged up and down, the fixed shaft located at the bottom is rotatably connected to a driven drive wheel and a driving sprocket, the driven drive wheel is fixedly connected to the driving sprocket, a belt is connected between the driven drive wheel and the driving drive wheel, the fixed shaft located at the top is rotatably connected to a driven sprocket, and a transmission chain is connected between the driven sprocket and the driving sprocket.

[0008] By adopting the above technical solution, the relative positions of the drive motor and the transmission chain can be easily arranged, making the entire structural layout more reasonable and convenient for staff to operate.

[0009] Optionally, two positioning columns are vertically fixed between the supporting beams, the connecting shaft is arranged horizontally and vertically slidably connected between the two positioning columns, and the elastic member is a tension spring connected between the connecting shaft and the supporting beam located above.

[0010] By adopting the above technical solution, the connecting column limits the vertical movement direction through the two positioning columns, maintains the stability of the vertical movement, and can facilitate the effective recovery and reset of structures such as the eccentric gear through the tension spring.

[0011] Optionally, a sliding groove is provided on the positioning column in the height direction, a slider is slidably connected in the sliding groove, and the connecting shaft is fixed to the slider.

[0012] By adopting the above technical solution, the slider cooperates with the slide groove to ensure the stability and smoothness of the connecting shaft during vertical movement.

[0013] Optionally, a torsion spring is installed between the connecting shaft and the eccentric gear, and the torsion spring has the elasticity to drive the eccentric gear to rotate away from the drill probe rod and to cause the hammer component to rise.

[0014] By adopting the above technical solution, the torsion spring elastically drives the eccentric gear away from the drill probe rod, which can effectively avoid the eccentric gear from contacting the drill probe rod when the drill probe rod is lifted.

[0015] Optionally, a limit column is vertically fixed between the supporting beams, and the drop hammer is slidably sleeved on the limit column.

[0016] By adopting the above technical solution, the setting of the limit column effectively limits the movement trajectory of the falling hammer, ensuring that it can only move vertically.

[0017] Optionally, a socket is provided transversely between the drop hammer and the limiting column, and a rod is detachably inserted into the socket.

[0018] By adopting the above technical solution, the drop hammer can be fixed on the limit column by inserting a rod before lifting the drill probe to avoid the drop hammer from exerting pressure on the eccentric gear, thereby improving the smoothness of the movement of the drill probe.

[0019] Optionally, a fixed pulley is installed on the top of the frame, a movable pulley is suspended to match the fixed pulley, the movable pulley is installed on the top of the drill probe rod, and the pull rope passes around the fixed pulley and the movable pulley and is connected to the top of the frame.

[0020] By adopting the above technical solution, the fixed pulley, the movable pulley and the pull rope cooperate with each other, thereby improving the smoothness of lifting the drill probe rod.

[0021] Optionally, the frame also includes two horizontally and parallel bottom bars, with columns vertically fixed on the top surfaces of the bottom bars, a top bar horizontally fixed between the top ends of the two columns, a supporting beam fixed between the two columns, and a crawler walking mechanism installed under the bottom bars.

[0022] Optionally, a support plate is transversely fixed between the bottom bars, and the drive motor is mounted on the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the double-anti-boring detector in an embodiment of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the elastic buckle mechanism after removing the hammer mechanism in an embodiment of the present invention.

[0025] Figure 3 It is a schematic diagram of the cooperation among the hammer mechanism, the elastic snap mechanism and the drill probe in an embodiment of the present invention.

[0026] Figure 4 It is a top view of the cooperation between the elastic snap mechanism and the drill probe rod in an embodiment of the present invention.

[0027] Figure 5 It is a partial structural diagram of the driving mechanism in an embodiment of the present invention.

[0028] Explanation of reference numerals: 1, frame; 10, bottom bar; 11, column; 12, top bar; 13, crawler walking mechanism; 14, inclined rod; 15, supporting beam; 2, drilling probe rod; 3, lifting mechanism; 30, fixed pulley; 31, movable pulley; 32, pull rope; 4, driving mechanism; 40, supporting plate; 41, driving motor; 42, winding wheel; 43, ratchet wheel 1; 44, ratchet pawl 1; 45, active driving wheel; 46, ratchet wheel 2; 47, ratchet pawl 2; 48, driven driving wheel; 49. Belt; 5. Hammering mechanism; 50. Fixed shaft; 51. Driving sprocket; 52. Driven sprocket; 53. Transmission chain; 54. Switch plate; 55. Limiting column; 56. Drop hammer; 560. Socket; 57. Baffle; 58. Insert rod; 6. Elastic snap mechanism; 60. Positioning column; 600. Slide; 61. Connecting shaft; 62. Slider; 63. Eccentric gear; 64. Hammering component; 65. Torsion spring; 66. U-shaped clip; 67. Connecting plate; 68. Tension spring. DETAILED DESCRIPTION

[0029] The following combination Figure 1-Figure 5 The present invention is described in further detail.

[0030] The embodiment of the present invention discloses a double-proof drill probe. Figure 1 The double-proof drilling probe machine includes a frame 1, a drilling probe rod 2, a lifting mechanism 3, a driving mechanism 4, a hammer mechanism 5 and an elastic snap mechanism 6. The frame 1 includes two horizontally and parallel bottom bars 10, each of which has a vertically fixed column 11 in the middle of the top surface of the two bottom bars 10, a top bar 12 is horizontally fixed between the top ends of the two columns 11, and a crawler walking mechanism 13 is installed under the bottom bars 10. The crawler is made of high-strength rubber and has good wear resistance and corrosion resistance. Diagonal rods 14 are also fixed between the top ends of the columns 11 and the two ends of the bottom bars 10, and two vertically arranged support beams 15 are also fixed between the middle parts of the two columns 11.

[0031] Reference Figure 1 The drill probe 2 is vertically mounted on one side of the support beam 15. The lifting mechanism 3 includes a fixed pulley 30 suspended below the top rod 12. The fixed pulley 30 is equipped with a suspended movable pulley 31. The movable pulley 31 is mounted on the top of the drill probe 2. The bottom surface of the top rod 12 is connected to a pull rope 32 that is sequentially wound around the movable pulley 31 and the fixed pulley 30. The driving mechanism 4 is used to control the lifting of the drill probe 2. The driving mechanism 4 includes a support plate 40 that is laterally fixed between the two bottom rods 10.

[0032] Reference Figure 1 and Figure 2A drive motor 41 is mounted on the top surface of the support plate 40. A winding wheel 42 and a ratchet wheel 1 43 are mounted on the output shaft of the drive motor 41. The winding wheel 42 is rotatably connected to the output shaft, and the ratchet wheel 1 43 is fixedly connected to the output shaft. A ratchet wheel 1 44 that cooperates with the ratchet wheel 1 43 is mounted on the side wall of the winding wheel 42 facing away from the drive motor 41. The pull rope 32 is wound around the winding wheel 42. An active drive wheel 45 and a second ratchet wheel 46 are also mounted on the output shaft. The active drive wheel 45 is rotatably connected to the output shaft, and the ratchet wheel 2 46 is fixedly connected to the output shaft. A ratchet wheel 2 47 that cooperates with the ratchet wheel 2 46 is mounted on the side wall of the active drive wheel 45 facing away from the drive motor 41.

[0033] Reference Figure 1 and Figure 2 The hammer mechanism 5 includes two fixed shafts 50 that are laterally fixed between the two columns 11 and are arranged up and down. A driving sprocket 51 and a driven driving wheel 48 are rotatably connected on the fixed shaft 50 at the bottom. The driving sprocket 51 is fixedly connected to the driven driving wheel 48. A belt 49 is installed between the driven driving wheel 48 and the driving driving wheel 45. A driven sprocket 52 is rotatably connected on the fixed shaft 50 at the top. A transmission chain 53 is meshed between the driving sprocket 51 and the driven sprocket 52. A shift plate 54 is vertically fixed to the outer periphery of the transmission chain 53. The fixed shaft 50, the driving sprocket 51, the driven sprocket 52, the driven driving wheel 48 and the belt 49 constitute a transmission assembly located between the transmission chain 53 and the driving driving wheel 45.

[0034] Reference Figure 1 、 Figure 3 、 Figure 4 and Figure 5 A limiting column 55 is vertically fixed between the two supporting beams 15. A drop hammer 56 is slidably mounted on the limiting column 55. A baffle 57 is transversely fixed to the top peripheral wall of the drop hammer 56. A paddle 54 is used to push the baffle 57 upward, thereby driving the drop hammer 56 upward. A socket 560 is transversely defined at the top of the drop hammer 56, extending through the limiting column 55. A rod 58 is removably inserted into the socket 560. The elastic snap mechanism 6 includes two positioning columns 60 vertically fixed between the two supporting beams 15. Slide slots 600 are defined along the height of the positioning columns 60. A connecting shaft 61, which is laterally movable and disposed vertically, is inserted into the two slide slots 600. A slider 62 is fixed to the end of the connecting shaft 61, which slides slidably connected to the slide slots 600.

[0035] Reference Figure 3 、 Figure 4 and Figure 5, an eccentric gear 63 is provided on the rotating sleeve of the connecting shaft 61, and a hammer component 64 is fixed on the eccentric gear 63. When the drop hammer 56 is at the highest point, a hammering distance for the drop hammer 56 to fall is left between the bottom surface of the drop hammer 56 and the top surface of the hammer component 64 in a stable state. This distance meets the construction requirements. The hammer component 64 is used to bear the falling impact of the drop hammer 56. A torsion spring 65 for elastically driving the hammer component 64 to rise is installed between the eccentric gear 63 and the connecting shaft 61. A U-shaped clip 66 is provided on the outer side of the drill probe rod 2, and the U-shaped clip 66 opens toward A connecting plate 67 is fixed to the eccentric gear 63 and both arms of the U-shaped clamp 66. The connecting plate 67 is fixed to the connecting shaft 61. The eccentric gear 63 is located between the two connecting plates 67. Two tension springs 68 are also connected between the connecting shaft 61 and the supporting beam 15 located above to elastically drive the connecting shaft 61 to move upward. The eccentric gear 63 is located between the two tension springs 68. In this embodiment, the tension spring 68 is used as the elastic member. In other embodiments, other elastic structures can be used as the elastic member to meet the usage requirements.

[0036] The implementation principle of the double-proof probe machine of the embodiment of the present invention is as follows: during the probe operation, the insertion rod 58 is removed from the socket 560, and the output shaft of the drive motor 41 is controlled to rotate clockwise. At this time, the ratchet 1 43 cannot engage with the pawl 1 44, thereby being unable to limit the rotation direction of the winding wheel 42, and the ratchet 2 46 engages with the pawl 2 47, thereby driving the active drive wheel 45 to rotate clockwise. The active drive wheel 45 transmits power to the paddle plate 54 in sequence through the belt 49, the driven drive wheel 48, the driving sprocket 51, the driven sprocket 52 and the transmission chain 53, so that the transmission chain 53 moves in a clockwise direction with the paddle plate 54.

[0037] After the selector plate 54 contacts the baffle 57, it pushes the drop hammer 56 to move upward until the selector plate 54 is separated from the baffle 57. The drop hammer 56 falls freely and hammers the hammer component 64. At the moment of hammering, the eccentric gear 63 rotates along the connecting shaft 61 and engages the drill probe rod 2. Under the clamping action of the U-shaped clip 66 and the eccentric gear 63, the drop hammer 56 drives the eccentric gear 63, the U-shaped clip 66 and the connecting shaft 61 to move the drill probe rod 2 downward. The drill probe rod 2 completes a penetration action. At this time, the tension spring 68 is in an elastic tension state.

[0038] When the shift plate 54 cycles to the baffle 57 again and pushes the drop hammer 56 to move upward, the tension spring 68 elastically contracts, driving the connecting shaft 61, the eccentric gear 63 and the U-shaped clip 66 to move upward along the slide 600, while the drill probe 2 remains stationary. The eccentric gear 63 rotates in the opposite direction, thereby reducing the resistance between the drill probe 2 and the drop hammer 56. After the drop hammer 56 completely disengages from the hammering component 64, the torsion spring 65 drives the eccentric gear 63 to continue rotating and drives the hammering component 64 upward, and the eccentric gear 63 completely disengages from the drill probe 2. In this way, when the drop hammer 56 falls again, the above hammering process is repeated.

[0039] After the drilling operation is completed, the drop hammer 56 is located at the top of the limit column 55 and the insertion rod 58 is inserted into the socket 560 to limit the movement of the drop hammer 56. Then the output shaft of the drive motor 41 is controlled to rotate counterclockwise. At this time, the ratchet 2 46 and the pawl 2 47 cannot engage, and the transmission chain 53 cannot drive the dial plate 54 to rotate clockwise, while the ratchet 1 43 and the pawl 1 44 engage, thereby driving the winding wheel 42 to rotate counterclockwise and reeling in the pull rope 32. Since the eccentric gear 63 and the U-shaped clip 66 are disengaged from the drilling rod 2, the pull rope 32 can smoothly pull the drilling rod 2 upward until it is completely removed from the foundation soil.

[0040] The double-anti-drilling probe machine of the embodiment of the present invention has the dual effects of preventing overturning and preventing the drill rod from getting stuck.

[0041] This device utilizes a single drive motor 41 with forward and reverse rotation functions as the driving source for lifting the drop hammer 56 and the drill rod 2. This significantly simplifies the drive and control structure. Compared to conventional drill rod transmission systems that use two independent motors to control the hammer and lift the drill rod, this improves operational ease, reduces costs, and reduces potential failure points. Drive motor 41 is mounted on the chassis of the frame 1, significantly lowering the center of gravity of the entire device and improving safety, stability, and anti-overturning capabilities during operation or movement.

[0042] An elastic snap mechanism 6 is used to cooperate between the hammer mechanism 5 and the drill probe 2 to ensure that the drill probe 2 can only be forced to penetrate downward during the hammering process, and is not subject to resistance from the elastic snap mechanism 6 during the lifting process, so that it can be smoothly moved out of the foundation soil, preventing the drill probe 2 from getting stuck.

[0043] When the drilling rig is moved, due to the use of a wide crawler walking mechanism 13, the crawler walking mechanism 13 is equipped with an independent drive system, has excellent traction, and can achieve flexible movement back and forth. Compared with traditional drilling rigs that use tires, when facing the soft, slippery, and uneven terrain commonly seen on construction sites (such as mud, sand, gravel, and small gullies), it is easy to sink, slip, bump, or even get stuck. With the center of gravity of the equipment lowered, the grip and stability of the drilling rig in complex terrain are significantly improved.

[0044] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-proof drill probe, characterized in that: include: A frame (1), a crawler walking mechanism (13) is provided at the bottom of the frame (1), and two supporting beams (15) arranged in an upper and lower manner are transversely provided in the middle of the frame (1); A drill probe rod (2) is vertically arranged on one side of the frame (1); A lifting mechanism (3) includes a pull rope (32) passing around the top of the frame (1) for lifting the drill probe (2); The driving mechanism (4) comprises a driving motor (41) mounted on the chassis of the frame (1); a winding wheel (42), a ratchet wheel (43), an active driving wheel (45) and a ratchet wheel (46) are arranged on the output shaft of the driving motor (41); a pull rope (32) is connected to the winding wheel (42); the winding wheel (42) is rotatably connected to the output shaft; the ratchet wheel (43) is fixedly connected to the output shaft; a ratchet wheel (44) is mounted on the winding wheel (42) and is matched with the ratchet wheel (43); the active driving wheel (45) is rotatably connected to the output shaft; the ratchet wheel (46) is fixedly connected to the output shaft; and a ratchet wheel (47) is mounted on the active driving wheel (45) and is matched with the ratchet wheel (46); The hammer mechanism (5) includes a transmission chain (53) for vertical cyclic rotation, a transmission assembly is provided between the transmission chain (53) and the active drive wheel (45), a shift plate (54) is fixed on the transmission chain (53), a drop hammer (56) that can only move vertically is provided between the supporting beams (15), and a baffle (57) that cooperates with the shift plate (54) is fixed on the drop hammer (56); The elastic snap mechanism (6) comprises a connecting shaft (61) and an elastic member for elastically driving the connecting shaft (61) to move upward, an eccentric gear (63) that can only move vertically is provided between the supporting crossbeams (15), the eccentric gear (63) is rotatably connected to the connecting shaft (61), a hammering component (64) that cooperates with a drop hammer (56) is fixed on the eccentric gear (63), a U-shaped clip (66) is movably sleeved on the outer side of the drill probe rod (2), and connecting plates (67) are fixed on the two arms of the U-shaped clip (66), and the connecting plates (67) are fixed on the connecting shaft (61) and located on both sides of the eccentric gear (63).

2. The double-proof drill detector according to claim 1, characterized in that: The transmission assembly includes two fixed shafts (50) which are transversely fixed in the frame (1) and arranged in an upper and lower manner. A driven driving wheel (48) and a driving sprocket (51) are rotatably connected to the fixed shaft (50) located at the bottom. The driven driving wheel (48) and the driving sprocket (51) are fixedly connected. A belt (49) is connected between the driven driving wheel (48) and the driving driving wheel (45). A driven sprocket (52) is rotatably connected to the fixed shaft (50) located at the top. A transmission chain (53) is connected between the driven sprocket (52) and the driving sprocket (51).

3. The double-proof drill detector according to claim 1, characterized in that: Two positioning columns (60) are vertically fixed between the supporting beams (15), a connecting shaft (61) is arranged horizontally and vertically slidably connected between the two positioning columns (60), and the elastic member is a tension spring (68) connected between the connecting shaft (61) and the supporting beam (15) located above.

4. The double-proof drill detector according to claim 3, characterized in that: A slide groove (600) is provided on the positioning column (60) along the height direction, a slider (62) is slidably connected in the slide groove (600), and the connecting shaft (61) is fixed to the slider (62).

5. The double-proof drill detector according to claim 1, characterized in that: A torsion spring (65) is installed between the connecting shaft (61) and the eccentric gear (63). The torsion spring (65) has the elasticity to drive the eccentric gear (63) to rotate in a direction away from the drill probe rod (2) and to cause the hammer component (64) to rise.

6. The double-proof drill detector according to claim 1, characterized in that: A limiting column (55) is vertically fixed between the supporting beams (15), and a drop hammer (56) is slidably sleeved on the limiting column (55).

7. The double-proof drill detector according to claim 6, characterized in that: A plug hole (560) is transversely provided between the drop hammer (56) and the limiting column (55), and a plug rod (58) is detachably inserted into the plug hole (560).

8. The double-proof drill detector according to claim 1, characterized in that: A fixed pulley (30) is hoisted on the top of the frame (1), a movable pulley (31) is suspended in conjunction with the fixed pulley (30), the movable pulley (31) is installed on the top of the drill probe rod (2), and a pull rope (32) passes around the fixed pulley (30) and the movable pulley (31) and is connected to the top of the frame (1).

9. The double-proof drill detector according to claim 1, characterized in that: The frame (1) further comprises two bottom bars (10) arranged transversely and in parallel, a column (11) being vertically fixed to the top surface of the bottom bar (10), a top bar (12) being transversely fixed between the top ends of the two columns (11), a supporting beam (15) being fixed between the two columns (11), and a crawler walking mechanism (13) being installed below the bottom bar (10).

10. The double-proof drill detector according to claim 1, characterized in that: A supporting plate (40) is transversely fixed between the bottom bars (10), and a driving motor (41) is installed on the supporting plate (40).

Images