Hole detection device for horizontal drilling

Abstract

The utility model discloses a hole detection device for horizontal drilling, and belongs to the technical field of drilling detection equipment. The hole exploring device comprises a hole exploring device, brackets and a plurality of push rods, the front end and the rear end of the hole exploring device are detachably connected with the brackets, and the brackets are used for supporting the hole exploring device in a horizontal drill hole and driving the hole exploring device to move; the bracket comprises a bracket rod and a roller, the bracket rod is a circular rod, the bracket rod is provided with a mounting groove which is vertical to the axial direction and penetrates through the rod body, the roller is rotationally arranged in the mounting groove, and a spoke of the roller exceeds the rod wall of the bracket rod; the push rods are detachably connected end to end, and the push rod at the foremost end is detachably connected with the bracket connected with the rear end of the hole explorer. Compared with the prior art, the hole explorer is supported by the bracket in the horizontal drill hole and is driven to move, and the rollers of the bracket are embedded into the bracket rods for assembly, so that on the basis of meeting the requirement of propelling the hole explorer, the shape of the hole explorer can adapt to the small-size horizontal drill hole.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling detection equipment, in particular to a hole detection device for horizontal drilling. Background Art

[0002] In geological exploration, a small-diameter, deep, cylindrical hole bored underground using drilling equipment is called a borehole, also known as a well. To investigate the conditions within the borehole, a borehole probe is typically lowered into the borehole using a rope. However, in some specialized geological explorations, horizontal boreholes are also drilled.

[0003] For horizontal drilling, relying on ropes and borehole finders is not enough to complete the detection operation. Therefore, a special bracket and propulsion mechanism must be designed for the borehole finder. For example, patent publication number CN215061061U discloses a stabilizing device for in-hole video recording in horizontal drilling, comprising a fixing device and a plurality of pulley blocks evenly distributed around the periphery of the fixing device. The pulley blocks include pulleys and pulley fixing brackets. The fixing device includes a fixed steel ring and a connecting block. The inner ring of the fixed steel ring is tightly attached to a plastic pad for securely mounting the camera rod. The fixed steel ring is connected to the pulley fixing bracket via a connecting block. A pulley is provided at the end of the pulley fixing bracket. This device is compact and practical, inexpensive, easy to use, and flexible to assemble and disassemble. It ensures that the camera is located at the center of the borehole, free from terrain interference, and provides stable imaging and clearer video.

[0004] The above-mentioned stabilizing device is fixed on the outside of the camera equipment. After installation, the overall volume is larger, at least much larger than the volume of the camera equipment. Therefore, it is only suitable for larger-sized drill holes and cannot be used when the drill hole size is smaller. Utility Model Content

[0005] The purpose of the utility model is to provide a borehole exploration device for horizontal drilling in view of the existing technical status. On the basis of meeting the requirements of propelling the borehole explorer, the device can be adapted to small-sized horizontal drilling.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A drilling device for horizontal drilling, comprising a drilling device, a bracket and a plurality of push rods;

[0008] The front and rear ends of the borehole probe are detachably connected to a bracket, which is used to support the borehole probe in the horizontal drill hole and drive the borehole probe to move;

[0009] The bracket includes a bracket rod and a roller. The bracket rod is a round rod with a mounting groove perpendicular to its axial direction and passing through its rod body. The roller is rotatably arranged in the mounting groove, and the spokes of the roller extend beyond the rod wall of the bracket rod.

[0010] The push rods are detachably connected at their ends, and the frontmost push rod is detachably connected to a bracket connected to the rear end of the borescope.

[0011] Furthermore, there are three rollers, which are arranged in sequence along the axial direction of the bracket rod, and the projections of the rotation axes of the three rollers on the axial direction of the bracket rod are evenly distributed.

[0012] Furthermore, the rim portion of the roller is made of polypropylene.

[0013] Furthermore, the bracket rod and the push rod are both made of aluminum alloy.

[0014] Furthermore, the front and rear ends of the bracket rod are respectively provided with a first connecting head and a first connecting groove, the front and rear ends of the borescope are respectively provided with a second connecting head, and the front and rear ends of the push rod are respectively provided with a third connecting head and a third connecting groove, the first connecting groove can be threadedly connected to the second connecting head, and both the first connecting head and the third connecting head can be threadedly connected to the third connecting groove.

[0015] Furthermore, the borescope includes a borescope body and a docking rod, a second connector is provided at one end of the borescope body, a wire is led out from the other end of the borescope body, a second connector and a second connecting groove are respectively provided at both ends of the docking rod, and the second connecting groove is adapted to one end of the wire led out of the borescope body. After one end of the wire led out of the borescope body is inserted into the second connecting groove provided on the docking rod, the two are connected by a fastener, and an opening is provided on the side wall of the second connecting groove, which is used to lead out the wire of the borescope body.

[0016] Furthermore, the opening extends rearward along the notch of the second connecting groove.

[0017] Furthermore, the push rod is provided with an anti-slip section, and the anti-slip section is provided with anti-slip grooves.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a borehole finder device for horizontal drilling, wherein a bracket supports a borehole finder in the horizontal drill hole and drives the borehole finder to move, and a roller of the bracket is embedded in a bracket rod for assembly. On the basis of meeting the requirements of propelling the borehole finder, the device can adapt to small-sized horizontal drilling holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a drilling device for horizontal drilling in the utility model;

[0021] Figure 2 This is a structural schematic diagram of a bracket in a drilling device for horizontal drilling according to the present invention;

[0022] Figure 3 This is a schematic structural diagram of a borehole finder in a borehole finder device for horizontal drilling according to the present invention;

[0023] Figure 4 The utility model is a structural schematic diagram of a push rod in a drilling device for horizontal drilling.

[0024] Marking instructions: 1. Borescope, 2. Bracket, 3. Push rod, 4. Bracket rod, 5. Roller, 6. Removable shaft, 7. First connector, 8. First connecting slot, 9. Mounting slot, 10. Borescope body, 11. Detection window, 12. Wire, 13. Second connector, 14. Docking rod, 15. Fastener, 16. Second connecting slot, 17. Opening, 18. Third connecting slot, 19. Third connector, 20. Anti-slip section. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] See also Figures 1 to 4 As shown, a borehole exploration device for horizontal drilling includes a borehole explorer 1, a bracket 2 and a plurality of push rods 3.

[0027] A bracket 2 is detachably connected to the front and rear ends of the borehole finder 1 , and the bracket 2 is used to support the borehole finder 1 in a horizontal borehole and drive the borehole finder 1 to move.

[0028] The bracket 2 includes a bracket rod 4 and a roller 5. The bracket rod 4 is a round rod with a mounting slot 9 extending perpendicularly through the bracket rod 4. The roller 5 is rotatably mounted in the mounting slot 9, with the spokes of the roller 5 extending beyond the wall of the bracket rod 4. To facilitate replacement, the roller 5 is rotatably mounted in the mounting slot 9 via a detachable shaft 6.

[0029] To achieve the best support effect, there are three rollers 5, which are arranged in sequence along the axial direction of the bracket rod 4, and the projections of the rotation axes of the three rollers 5 on the axial direction of the bracket rod 4 are evenly distributed. In other words, the three rollers 5 are arranged on the bracket rod 4 at 120 degrees relative to each other.

[0030] The push rods 3 are detachably connected at their ends, and the frontmost push rod 3 is detachably connected to the bracket 2 connected to the rear end of the borehole finder 1. The number of push rods 3 is selected as needed according to the depth of the horizontal drilling.

[0031] In the above technical solution, preferably, the push rod 3 is provided with an anti-skid section 20 , and the anti-skid section 20 is provided with anti-skid grooves to avoid slipping when pushing the borer 1 .

[0032] As for the connection method between the borescope 1, the bracket 2 and the push rod 3, specifically, the front and rear ends of the bracket rod 4 are respectively provided with a first connecting head 7 and a first connecting groove 8, the front and rear ends of the borescope 1 are respectively provided with a second connecting head 13, and the front and rear ends of the push rod 3 are respectively provided with a third connecting head 19 and a third connecting groove 18, wherein: the first connecting groove 8 can be threadedly connected to the second connecting head 13 to achieve a detachable connection between the borescope 1 and the bracket 2; the first connecting head 7 and the third connecting head 19 can both be threadedly connected to the third connecting groove 18 to achieve a detachable connection between the push rod 3 and the bracket 2, and between the push rod 3 and the push rod 3.

[0033] The borescope 1 itself, while ensuring the lead wire 12 is accessible, specifically includes a borescope body 10 and a docking rod 14. A second connector 13 is provided at one end of the borescope body 10, from which the lead wire 12 is accessed. The docking rod 14 has a second connector 13 and a second connecting slot 16 at each end. The second connecting slot 16 mates with the end of the lead wire 12 from the borescope body 10. After the lead wire 12 from the borescope body 10 is inserted into the second connecting slot 16 on the docking rod 14, the two are connected by a fastener 15. An opening 17 is provided on the sidewall of the second connecting slot 16 for accessing the lead wire 12 from the borescope body 10. The borescope body 10 is a camera or other device, and is provided with a detection window 11.

[0034] In the above technical solution, preferably, the opening 17 extends rearward along the notch of the second connecting groove 16 to facilitate the insertion of the wire 12 of the borescope body 10 into the opening 17 .

[0035] In this embodiment, for example, the rim portion of the roller 5 is a polypropylene part, and the advantages of polypropylene parts are: light weight, chemical corrosion resistance, heat resistance, non-toxic and harmless, etc.; the bracket rod 4 and the push rod 3 are both aluminum alloy parts, and the advantages of aluminum alloy parts are: good corrosion resistance, good strength, light weight, good processing performance, good sealing, etc.

[0036] The process of conducting horizontal drilling operations using the drilling device is as follows:

[0037] Connect the wire 12 of the borescope body 10 to the detection instrument;

[0038] First, a bracket 2 is connected to the front and rear ends of the borehole finder 1, and then a push rod 3 is connected to the bracket 2 connected to the rear end of the borehole finder 1. The borehole finder 1 and the bracket 2 are placed into the horizontal drill hole through the push rod 3.

[0039] When the push rod 3 is about to completely enter the horizontal borehole, the next push rod 3 is connected to the push rod 3, and the borer 1 and the bracket 2 are continued to be pushed;

[0040] Repeat the previous step until the borer 1 is pushed to the target position.

[0041] When it is necessary to take out the borehole finder 1, the above steps are performed in reverse order. In addition, if an obstacle is encountered during the implementation, the borehole finder 1 can be taken out and the hole cleaning operation of the horizontal drilling can be carried out by the drilling equipment.

[0042] Of course, the above are only preferred implementation methods of the present invention, and are not intended to limit the scope of use of the present invention. Therefore, any equivalent changes based on the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drilling device for horizontal drilling, characterized by: Includes a borer, a bracket and several push rods; The front and rear ends of the borehole probe are detachably connected to a bracket, which is used to support the borehole probe in the horizontal drill hole and drive the borehole probe to move; The bracket includes a bracket rod and a roller. The bracket rod is a round rod with a mounting groove perpendicular to its axial direction and passing through its rod body. The roller is rotatably arranged in the mounting groove, and the spokes of the roller extend beyond the rod wall of the bracket rod. The push rods are detachably connected at their ends, and the frontmost push rod is detachably connected to a bracket connected to the rear end of the borescope.

2. The drilling device for horizontal drilling according to claim 1, characterized in that: There are three rollers, which are arranged in sequence along the axial direction of the bracket rod, and the projections of the rotation axes of the three rollers on the axial direction of the bracket rod are evenly distributed.

3. A drilling device for horizontal drilling according to claim 1 or 2, characterized in that: The rim portion of the roller is made of polypropylene.

4. The drilling device for horizontal drilling according to claim 1, characterized in that: The bracket rod and the push rod are both made of aluminum alloy.

5. The drilling device for horizontal drilling according to claim 1, characterized in that: The front and rear ends of the bracket rod are respectively provided with a first connecting head and a first connecting groove, the front and rear ends of the borescope are respectively provided with a second connecting head, and the front and rear ends of the push rod are respectively provided with a third connecting head and a third connecting groove, the first connecting groove can be threadedly connected to the second connecting head, and the first connecting head and the third connecting head can both be threadedly connected to the third connecting groove.

6. The drilling device for horizontal drilling according to claim 5, characterized in that: The borescope includes a borescope body and a docking rod. A second connector is provided at one end of the borescope body, and a wire is led out from the other end of the borescope body. A second connector and a second connecting groove are respectively provided at both ends of the docking rod, and the second connecting groove is adapted to one end of the wire led out of the borescope body. After one end of the wire led out of the borescope body is inserted into the second connecting groove provided on the docking rod, the two are connected by a fastener. An opening is provided on the side wall of the second connecting groove, and the opening is used to lead out the wire of the borescope body.

7. The drilling device for horizontal drilling according to claim 6, characterized in that: The opening extends rearward along the notch of the second connecting groove.

8. The drilling device for horizontal drilling according to claim 1, characterized in that: The push rod is provided with an anti-skid section, and the anti-skid section is provided with anti-skid patterns.

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