Propelling mechanism of hole explorer

By designing a propulsion rod structure with gap grooves and line cards, the problem of damage and obstruction of the signal transmission line in horizontal drilling is solved, and the smooth propulsion and signal protection of the hole detector are achieved.

CN223256785UActive Publication Date: 2025-08-22HUBEI PROVINCE INVESTIGATION INST OF HYDROGEOLOGY & ENG GEOLOGY CO LTD
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Patent Information

Application Number
CN202422854778.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-08-22
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

The existing propulsion mechanism cannot effectively protect the signal transmission line of the hole detector in horizontal drilling, and the signal transmission line may hinder the normal propulsion of the propulsion rod.

Method used

The design propulsion rod is a circular tube structure with gap grooves on the side wall, and a line card with an opening is penetrated on the propulsion rod. The signal transmission line is stored through the rotation of the line card, and the rotation damping and positioning of the line card is achieved by the coordination of the projection and the positioning groove.

Benefits of technology

During the propulsion process, the signal transmission line is protected from wear and obstacles, and the convenience and efficiency of operation are improved.

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Abstract

The utility model discloses a hole explorer propelling mechanism, and belongs to the technical field of drilling detection equipment. The propelling mechanism comprises a plurality of propelling rods which are detachably connected end to end, each propelling rod is of a circular tube body structure, and a gap groove extending from one end to the other end is formed in the side wall of each propelling rod; the wire clamp further comprises a plurality of wire clamps arranged on the pushing rod in a penetrating mode, each wire clamp is of a circular ring structure with an opening, the inner diameter of each wire clamp is matched with the outer diameter of the position, corresponding to the pushing rod, of the wire clamp, the width of the opening formed in each wire clamp is not smaller than that of the gap groove formed in the pushing rod, and a protruding part is arranged on the inner ring wall of each wire clamp. According to the utility model, the pushing rod is designed into the circular tube body structure with the slot on the side wall, and the line card with the opening is arranged on the pushing rod in a penetrating manner, so that the signal transmission line of the hole detector can be quickly accommodated by the pushing mechanism based on the rotation of the line card, the signal transmission line of the hole detector can be protected in the process of pushing the hole detector, and the service life of the hole detector can be prolonged. And the push rod is prevented from being hindered, and is easy to operate and use.
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Description

Technical Field

[0001] The utility model relates to the technical field of drilling detection equipment, in particular to a borehole probe propulsion mechanism. 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 solely on ropes and a borehole finder is insufficient. Therefore, a specialized bracket and propulsion mechanism for the borehole finder is required. A commonly used propulsion mechanism typically consists of several detachably connected propulsion rods, which are continuously spliced ​​and advanced to position the borehole finder into the horizontal borehole. However, during this advancement process, the borehole finder's signal transmission line enters the horizontal borehole simultaneously with the propulsion rods. This can cause wear on the signal transmission line due to the borehole wall and opening, and can also hinder the propulsion rod, hindering the placement of the borehole finder into the horizontal borehole. Utility Model Content

[0004] The purpose of the utility model is to provide a borescope propulsion mechanism in response to the existing technical status. The propulsion rod is designed as a circular tubular structure with a slot provided on the side wall. At the same time, a wire clip with an opening is passed through the propulsion rod. Based on the rotation of the wire clip, the propulsion mechanism can quickly accommodate the signal transmission line of the borescope. This not only protects the signal transmission line of the borescope during the process of advancing the borescope and eliminates obstruction to the propulsion rod, but also is easy to operate and use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A borehole probe propulsion mechanism includes a plurality of propulsion rods detachably connected end to end, wherein the propulsion rods are circular tubular structures and have side walls provided with slots extending from one end to the other end.

[0007] It also includes several wire clips that are passed through the push rod. The wire clips are circular ring structures with openings, and the inner diameter of the wire clips is adapted to the outer diameter of the corresponding part on the push rod. The width of the opening on the wire clips is not less than the width of the slot on the push rod. A protrusion is provided on the inner ring wall of the wire clip, and the protrusion is used to provide rotational damping when the wire clips are passed through the push rod.

[0008] Furthermore, a positioning groove is provided on the pushing rod at a position corresponding to each line card, and the line card is embedded in the positioning groove.

[0009] Furthermore, the outer ring wall of the line clip is flush with the outer side wall of the push rod.

[0010] Furthermore, a groove portion adapted to the protrusion portion is provided at the bottom of the positioning groove, and when the protrusion portion is embedded in the groove portion, the opening on the line clip and the slot provided on the push rod do not overlap.

[0011] Furthermore, the raised portion is a spherical raised structure.

[0012] Furthermore, an anti-slip structure is provided on the outer ring wall of the line card.

[0013] Furthermore, there are at least two line clips, and the line clips are evenly distributed on the pushing rod.

[0014] Furthermore, the line card is a plastic component.

[0015] Furthermore, the propulsion rods are connected by threads.

[0016] Furthermore, the propulsion rod is an aluminum alloy component.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a borescope propulsion mechanism. The propulsion rod is designed as a circular tubular structure with slots on its sidewalls. A wire clip with an opening is provided on the propulsion rod. The rotation of the wire clip opens and closes the slot on the propulsion rod as the borescope's signal transmission cable is retracted into the propulsion rod. This design allows the propulsion mechanism to quickly retract the borescope's signal transmission cable, protecting it during advancement and preventing obstruction to the propulsion rod. Furthermore, the mechanism is easy to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a borehole probe propulsion mechanism of the utility model (slot closed);

[0020] Figure 2 This is a structural diagram of a borehole probe propulsion mechanism of the utility model (slot open);

[0021] Figure 3 This is a structural diagram of a propulsion rod in a borehole probe propulsion mechanism of the present utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area A in the middle;

[0023] Figure 5 The utility model is a structural diagram of a centerline card of a borehole probe propulsion mechanism.

[0024] Marking instructions: a. Signal transmission line of the borescope, 1. Push rod, 101. Slot, 102. Positioning slot, 1021. Groove portion, 2. Line clip, 201. Anti-slip structure, 202. Opening, 203. Raised portion. DETAILED DESCRIPTION

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

[0026] See also Figures 1 to 5 As shown, a borehole probe propulsion mechanism includes several propulsion rods 1 that are detachably connected at the head and tail. The propulsion rods 1 are circular tubular structures (the circular tubular structure can reduce weight without affecting strength), and a slot 101 extending from one end to the other end is provided on the side wall.

[0027] In this embodiment, the propulsion rods 1 are connected by threads, that is, one end of the propulsion rod 1 is provided with an internal thread, and the other end of the propulsion rod 1 is provided with an external thread; the propulsion rod 1 is an aluminum alloy component.

[0028] It also includes several line clips 2 that are passed through the push rod 1. The line clips 2 are circular ring structures with openings 202, and the inner diameter of the line clips 2 is adapted to the outer diameter of the corresponding part on the push rod 1. The width of the openings 202 on the line clips 2 is not less than the width of the slots 101 provided on the push rod 1.

[0029] The inner ring wall of the cable clip 2 is provided with a protrusion 203, which is used to provide rotational damping when the cable clip 2 is inserted into the push rod 1. Specifically, the protrusion 203 causes the cable clip 2 to deform when inserted into the push rod 1, thereby generating an elastic restoring force, i.e., rotational damping.

[0030] In this embodiment, there are at least two line cards 2 , and the line cards 2 are evenly distributed on the pushing rod 1 ; the line cards 2 are plastic components.

[0031] The present invention utilizes a push rod 1 designed as a circular tubular structure with a slot 101 defined in its sidewall. A cable clip 2 with an opening 202 is inserted through the push rod 1. The rotation of the cable clip 2 opens and closes the slot 101 in the push rod 1, either before or after the borescope's signal transmission cable a is retracted into the push rod 1. This design allows the push mechanism to quickly retract the borescope's signal transmission cable a, protecting it during advancement and preventing obstruction to the push rod 1. Furthermore, the mechanism is easy to operate and use.

[0032] In the above technical solution, preferably, a positioning groove 102 is provided on the push rod 1 corresponding to the position of each line card 2 , and the line card 2 is embedded in the positioning groove 102 , thereby limiting the axial position of the line card 2 along the push rod 1 .

[0033] It is further preferred that the outer ring wall of the line clip 2 is flush with the outer side wall of the propulsion rod 1 to avoid affecting the propulsion operation due to the line clip 2 protruding beyond the outer side wall of the propulsion rod 1.

[0034] In the above technical solution, it is preferred that the bottom of the positioning groove 102 is provided with a groove portion 1021 that is compatible with the protrusion 203, and when the protrusion 203 is embedded in the groove portion 1021, the opening 202 on the line card 2 and the slot 101 provided on the push rod 1 do not overlap, thereby limiting the circumferential position of the line card 2 along the push rod 1.

[0035] In this embodiment, the protrusion 203 is a spherical protrusion structure.

[0036] In the above technical solution, preferably, an anti-slip structure 201 is provided on the outer ring wall of the line card 2 to facilitate the rotation of the line card 2.

[0037] The process of placing the borehole probe into the horizontal borehole through the propulsion mechanism is as follows:

[0038] Place the borehole finder into the mouth of the horizontal borehole;

[0039] First, connect the push rod 1 to the borescope, then retract the borescope's signal transmission line a from the slot 101 into the push rod 1, then rotate the line clamp 2 to close the slot 101 on the push rod 1, and finally push the borescope through the push rod 1.

[0040] Connect the next push rod 1 to the previous push rod 1, then retract the borescope signal transmission line a from the slot 101 into the inside of the next push rod 1, then rotate the line clamp 2 to close the slot 101 on the next push rod 1, and finally advance the borescope through the next push rod 1;

[0041] Repeat the above operation until the borer is pushed to the target position.

[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 borehole probe propulsion mechanism, characterized in that: The propulsion rods are detachably connected at the ends, and are circular tubular structures with side walls provided with slots extending from one end to the other end. It also includes several wire clips that are passed through the push rod. The wire clips are circular ring structures with openings, and the inner diameter of the wire clips is adapted to the outer diameter of the corresponding part on the push rod. The width of the opening on the wire clips is not less than the width of the slot on the push rod. A protrusion is provided on the inner ring wall of the wire clip, and the protrusion is used to provide rotational damping when the wire clips are passed through the push rod.

2. The borer propulsion mechanism according to claim 1, characterized in that: A positioning groove is provided on the pushing rod at a position corresponding to each line card, and the line card is embedded in the positioning groove.

3. The borer propulsion mechanism according to claim 2, characterized in that: The outer ring wall of the line card is flush with the outer side wall of the push rod.

4. The borer propulsion mechanism according to claim 2, characterized in that: The bottom of the positioning groove is provided with a groove portion adapted to the protrusion portion, and when the protrusion portion is embedded in the groove portion, the opening on the line card and the slot provided on the push rod do not overlap.

5. The borer propulsion mechanism according to claim 4, characterized in that: The raised portion is a spherical raised structure.

6. A borescope propulsion mechanism according to any one of claims 1 to 5, characterized in that: An anti-slip structure is provided on the outer ring wall of the line card.

7. The borescope propulsion mechanism according to any one of claims 1 to 5, characterized in that: There are at least two line clips, and the line clips are evenly distributed on the pushing rod.

8. The borescope propulsion mechanism according to any one of claims 1 to 5, characterized in that: The line card is a plastic component.

9. The borer propulsion mechanism according to claim 1, characterized in that: The propulsion rods are connected by threads.

10. A borescope propulsion mechanism according to claim 1 or 9, characterized in that: The propulsion rod is an aluminum alloy component.