Drill jamming prevention guide mechanism of drilling measurement probe

Abstract

The utility model provides an anti-jamming guide mechanism of a drilling measurement probe. The anti-jamming guide mechanism comprises a carrier frame, the top end of the guide telescopic pipe is rotationally connected with the inner wall of the top of the carrying frame, and the bottom end of the guide telescopic pipe is connected with a drilling measurement probe; a plurality of liquid outlet channels are formed in the periphery of the drilling measurement probe, a liquid inlet hole is formed in the top of the drilling measurement probe, and the liquid inlet hole is communicated with the liquid outlet channels; the flushing assembly is communicated with the top end of the guide telescopic pipe; the mounting frame is rotationally connected with a drill rod, a hole body is formed in the drill rod in the length direction, and the guide telescopic pipe is located in the hole body; the bottom end of the drill rod is fixed to the top face of the drill hole measuring probe. Flushing liquid is continuously conveyed to the peripheral position of the drilling measurement probe, and the possibility of the drill jamming phenomenon can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of borehole measuring probes, and in particular to an anti-jamming guide mechanism for borehole measuring probes. Background Technology

[0002] When borehole survey probes are used in geological exploration, engineering testing and other construction projects, a guiding mechanism is required to guide the borehole survey probe as it is drilled into the soil.

[0003] While traditional guiding mechanisms have a guiding function, the drilling measurement probe may get stuck during the drilling process, causing the drilling operation to stop midway and affecting the construction progress. At the same time, traditional guiding structures use guide sleeves to guide the drill rod. As the drill rod rotates continuously, the drill rod and the guide sleeve need to rub against each other, which can easily cause wear. Utility Model Content

[0004] This utility model provides an anti-jamming guide mechanism for a drilling measurement probe to solve the technical problem of drill jamming during drilling.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides an anti-jamming guide mechanism for a borehole measuring probe, including a carrier frame; it also includes: a guide telescopic tube, the top end of which is rotatably connected to the inner top wall of the carrier frame, and the bottom end of which is connected to the borehole measuring probe; the borehole measuring probe has multiple liquid outlet channels around its perimeter, and a liquid inlet is provided at the top of the borehole measuring probe, which communicates with the multiple liquid outlet channels; a flushing assembly, which is connected to the top end of the guide telescopic tube; a mounting frame, on which a drill rod is rotatably connected, and a hole is formed in the drill rod along its length, with the guide telescopic tube located inside the hole; the bottom end of the drill rod is fixed to the top surface of the borehole measuring probe.

[0007] In this technical solution, by continuously supplying flushing fluid around the borehole measuring probe, the possibility of stuck drill bit can be reduced.

[0008] Preferably, an inner ring is fixedly installed at the bottom end of the borehole; the bottom surface of the inner ring, the top surface of the borehole measuring probe, and the borehole wall form a cavity, which is connected to the liquid inlet.

[0009] In this technical solution, the cavity is used to connect the bottom end of the guide telescopic tube with the liquid inlet, and the flushing fluid transported by the guide telescopic tube can enter the liquid inlet through the cavity.

[0010] Preferably, the guide telescopic tube includes an outer cylinder; an inner cylinder is provided inside the outer cylinder, and a piston is fixedly installed at the top of the inner cylinder, and the piston is connected to the inner wall of the outer cylinder.

[0011] In this technical solution, the mutual movement between the outer cylinder and the inner cylinder, as well as the sliding of the piston within the outer cylinder, provide a guiding function.

[0012] Preferably, the bottom end of the outer cylinder is provided with a through hole, and the outer wall of the inner cylinder is connected to the wall of the through hole with a clearance fit.

[0013] In this technical solution, the sliding between the inner cylinder and the through hole can serve as a guide.

[0014] Preferably, a connecting sleeve is fixedly installed on the top and bottom surfaces of the carrier, and the top end of the outer cylinder is rotatably connected to the connecting sleeve.

[0015] In this technical solution, the connecting sleeve is used for the rotatable installation of the top of the outer cylinder.

[0016] Preferably, a sealing ring is provided on the inner wall of the connecting sleeve, and the sealing ring is tightly fitted to the outer wall of the outer cylinder.

[0017] In this technical solution, the sealing ring provides a seal between the connecting sleeve and the top of the outer cylinder.

[0018] Preferably, the rinsing assembly includes a liquid storage tank; a pump body is provided inside the liquid storage tank, the pump body is connected to a delivery pipe, the end of the delivery pipe away from the pump body is fixed to the top of the carrier, and the delivery pipe communicates with the top of the outer cylinder.

[0019] In this technical solution, the flushing assembly is used to introduce flushing fluid into the top of the guide telescopic tube.

[0020] Preferably, the liquid storage tank is provided with a liquid filling port on the top, and a sealing cap is installed on the liquid filling port.

[0021] In this technical solution, the filling port is used to add supplementary rinsing fluid to the storage tank.

[0022] Preferably, guide grooves are provided on both sides of the outer wall of the outer cylinder along the length direction, and a slide bar is slidably connected to the guide groove, and the slide bar is fixedly connected to the top hole wall of the hole body.

[0023] In this technical solution, the sliding of the slider and the guide groove can play a guiding role.

[0024] Preferably, the bottom end of the inner cylinder is fixedly connected to the inner ring, and the inner cylinder is in communication with the cavity.

[0025] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0026] The positive and progressive effects of this utility model are as follows:

[0027] The aforementioned anti-jamming guide mechanism for the borehole measuring probe uses a guide telescopic tube to guide the downward movement of the borehole measuring probe and the drill rod. Simultaneously, the guide telescopic tube is located inside the borehole of the drill rod, preventing friction during rotation and reducing wear. Furthermore, the flushing assembly, guide telescopic tube, flushing fluid delivery channels, and inlet holes allow flushing fluid to be delivered during drilling. The flushing assembly introduces flushing fluid into the guide telescopic tube, which then delivers it to the inlet hole. From there, the fluid flows through multiple outlet channels to various locations around the borehole measuring probe, providing flushing and reducing the likelihood of jamming. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the rinsing assembly of this utility model.

[0030] Figure 3 This is a schematic diagram of the internal structure of the drill pipe of this utility model.

[0031] Figure 4 This is a schematic diagram of the top end of the guide telescopic tube of this utility model.

[0032] Figure 5 This utility model Figure 4 Enlarged structural diagram of section A in the middle.

[0033] Figure 6 This is a schematic diagram of the structure of the bottom end of the drill rod of this utility model.

[0034] Explanation of reference numerals in the attached figures

[0035] 1. Carrier frame; 2. Guide telescopic tube; 201. Outer cylinder; 202. Inner cylinder; 203. Guide groove; 204. Sliding bar; 205. Piston; 3. Flushing assembly; 301. Liquid storage tank; 302. Delivery pipe; 303. Pump body; 304. Liquid filling port; 305. Sealing cap; 4. Drill rod; 401. Inner ring; 5. Drilling measuring probe; 501. Liquid inlet; 502. Liquid outlet channel; 6. Mounting bracket; 7. Connecting sleeve; 701. Sealing ring. Detailed Implementation

[0036] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0037] like Figure 1-6 As shown, the anti-jamming guide mechanism of the borehole measuring probe 5 includes a carrier frame 1; it also includes: a guide telescopic tube 2, the top end of which is rotatably connected to the top inner wall of the carrier frame 1, and the bottom end of which is connected to the borehole measuring probe 5; the borehole measuring probe 5 has multiple liquid outlet channels 502 around its perimeter, and the top of the borehole measuring probe 5 has a liquid inlet hole 501, which communicates with the multiple liquid outlet channels 502; a flushing assembly 3, which is connected to the top end of the guide telescopic tube 2; a mounting frame 6, which is rotatably connected to a drill rod 4, and the drill rod 4 has a hole along its length, with the guide telescopic tube 2 located inside the hole; the bottom end of the drill rod 4 is fixed to the top surface of the borehole measuring probe 5.

[0038] In practical implementation, the mounting frame 6 needs to be equipped with a structure to drive the drill rod 4 to rotate. Specifically, a motor and two gears can be used. The motor is fixed to the mounting frame 6, one gear is fixed to the output shaft of the motor, and the other gear is fixedly sleeved on the drill rod 4, and the two gears are meshed and connected. When the motor drives one gear to rotate, the drill rod 4 drives the drilling measurement probe 5 to rotate through the meshing transmission of the two gears.

[0039] Furthermore, the mounting frame 6 also needs to be connected to a lifting mechanism. The lifting mechanism drives the mounting frame 6, the drill rod 4 on the mounting frame 6, and the borehole measuring probe 5 on the mounting frame 6 to move upward together. With the rotation of the drill rod 4 and the borehole measuring probe 5, they can drill into the soil layer.

[0040] like Figure 3 , Figure 4 as well as Figure 6 As shown, the guide telescopic tube 2 includes an outer cylinder 201; an inner cylinder 202 is provided inside the outer cylinder 201, and a piston 205 is fixedly installed at the top of the inner cylinder 202, and the piston 205 is connected to the inner wall of the outer cylinder 201.

[0041] like Figure 6 As shown, the bottom end of the outer cylinder 201 is provided with a through hole, and the outer wall of the inner cylinder 202 is connected to the through hole wall with a clearance fit.

[0042] like Figure 5 As shown, a connecting sleeve 7 is fixedly installed on the top and bottom surfaces of the carrier 1, and the top end of the outer cylinder 201 is rotatably connected to the connecting sleeve 7.

[0043] like Figure 4 as well as Figure 6 As shown, guide grooves 203 are provided on both sides of the outer wall of the outer cylinder 201 along the length direction. The guide grooves 203 are slidably connected to the slide bars 204, and the slide bars 204 are fixedly connected to the top hole wall of the hole body.

[0044] During the drilling process, the borehole measuring probe 5 is guided by the guide telescopic tube 2. The borehole measuring probe 5 and the drill rod 4 rotate together, and the slide bar 204 fixed inside the drill rod 4 is located in the guide groove 203 on the outer wall of the outer cylinder 201 (the two can slide), so that the outer cylinder 201 rotates with the drill rod 4. The inner cylinder 202 is fixed to the bottom end of the drill rod 4 through the inner ring 401, so the inner cylinder 202 also rotates together. In summary, the borehole measuring probe 5, the outer cylinder 201 of the drill rod 4, the inner cylinder 202, and the piston 205 on the inner cylinder 202 rotate together. During the rotation, the guide structure will not experience friction or wear, which is different from the traditional technology that uses a guide sleeve to provide guidance for the drill rod 4. When the drill rod 4 rotates, there is continuous friction and wear between the inner wall of the guide sleeve and the drill rod 4.

[0045] When the drill rod 4 and the borehole measuring probe 5 move up and down together, the inner cylinder 202 and the piston 205 move together with the drill rod 4. The piston 205 slides in the outer cylinder 201, the slide bar 204 slides in the guide groove 203, and the inner cylinder 202 slides with the through hole to provide guidance.

[0046] like Figure 5 As shown, the outer cylinder 201 is restricted by the connecting sleeve 7 and cannot move up and down. It can only rotate, and the rotating position is equipped with ball bearings and lubricating oil to reduce mutual friction during rotation.

[0047] Furthermore, a sealing ring 701 is provided on the inner wall of the connecting sleeve 7, and the sealing ring 701 is tightly fitted to the outer wall of the outer cylinder 201. The sealing ring 701 provides a seal at the connection between the connecting sleeve 7 and the outer cylinder 201.

[0048] like Figure 6 As shown, an inner ring 401 is fixedly installed at the bottom end of the borehole; the bottom surface of the inner ring 401, the top surface of the drilling measuring probe 5, and the borehole wall form a cavity, which is connected to the liquid inlet 501. The bottom end of the inner cylinder 202 is fixedly connected to the inner ring 401, and the inner cylinder 202 is connected to the cavity.

[0049] like Figure 1-2 As shown, the rinsing assembly 3 includes a storage tank 301; a pump body 303 is installed inside the storage tank 301, and a delivery pipe 302 is connected to the pump body 303. One end of the delivery pipe 302 away from the pump body 303 is fixed to the top of the carrier 1, and the delivery pipe 302 communicates with the top of the outer cylinder 201. A liquid inlet 304 is provided on the top of the storage tank 301, and a sealing cap 305 is installed on the liquid inlet 304. The liquid inlet 304 is used to add supplementary rinsing liquid to the storage tank 301, and the sealing cap 305 is used to open and close the liquid inlet 304.

[0050] While the guide telescopic tube 2 provides guidance, a flushing assembly 3 is also provided. The flushing assembly 3 draws flushing fluid from the storage tank 301 through the pump body 303, and delivers it through the delivery pipe 302 to the top of the outer cylinder 201 of the guide telescopic tube 2. Then it enters the inner cylinder 202, and then enters the cavity. It is then fed into the outlet channel 502 through the inlet hole 501 and flows to the periphery of the drilling measuring probe 5 to provide flushing fluid around the drilling measuring probe 5. Under the action of the flushing fluid, the phenomenon of drill jamming is reduced.

[0051] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A drill bit anti-jamming guide mechanism for a borehole measuring probe, comprising a carrier (1); characterized in that, Also includes: Guide telescopic tube (2), the top end of the guide telescopic tube (2) is rotatably connected to the top inner wall of the carrier (1), and the bottom end of the guide telescopic tube (2) is connected to a drilling measurement probe (5); The borehole measuring probe (5) has multiple liquid outlet channels (502) around its perimeter, and the top of the borehole measuring probe (5) has a liquid inlet (501) that is connected to the multiple liquid outlet channels (502). A flushing assembly (3) is connected to the top end of a guide telescopic tube (2); Mounting bracket (6), the mounting bracket (6) is rotatably connected to a drill rod (4), the drill rod (4) has a hole opened in the length direction, the guide telescopic tube (2) is located in the hole; the bottom end of the drill rod (4) is fixed to the top surface of the drilling measuring probe (5).

2. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 1, characterized in that: An inner ring (401) is fixedly installed at the bottom of the borehole; the bottom surface of the inner ring (401), the top surface of the borehole measuring probe (5), and the borehole wall form a cavity, which is connected to the liquid inlet (501).

3. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 2, characterized in that: The guide telescopic tube (2) includes an outer cylinder (201); an inner cylinder (202) is provided inside the outer cylinder (201), and a piston (205) is fixedly installed at the top of the inner cylinder (202), and the piston (205) is connected to the inner wall of the outer cylinder (201).

4. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 3, characterized in that: The bottom end of the outer cylinder (201) is provided with a through hole, and the outer wall of the inner cylinder (202) is connected to the through hole wall with a clearance fit.

5. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 3, characterized in that: A connecting sleeve (7) is fixedly installed on the top and bottom surfaces of the carrier (1), and the top end of the outer cylinder (201) is rotatably connected to the connecting sleeve (7).

6. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 5, characterized in that: A sealing ring (701) is provided on the inner wall of the connecting sleeve (7), and the sealing ring (701) is tightly fitted to the outer wall of the outer cylinder (201).

7. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 1, characterized in that: The rinsing assembly (3) includes a liquid storage tank (301); a pump body (303) is provided inside the liquid storage tank (301), the pump body (303) is connected to a delivery pipe (302), one end of the delivery pipe (302) away from the pump body (303) is fixed to the top of the carrier (1), and the delivery pipe (302) is connected to the top of the outer cylinder (201).

8. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 7, characterized in that: The liquid storage tank (301) is provided with a liquid filling port (304) on the top, and a sealing cap (305) is installed on the liquid filling port (304).

9. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 3, characterized in that: The outer walls on both sides of the outer cylinder (201) are provided with guide grooves (203) along the length direction. The guide grooves (203) are slidably connected with slide bars (204), and the slide bars (204) are fixedly connected to the top hole wall of the hole body.

10. The anti-jamming guide mechanism for the borehole measuring probe as described in claim 3, characterized in that: The bottom end of the inner cylinder (202) is fixedly connected to the inner ring (401), and the inner cylinder (202) is in communication with the cavity.

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