An electromagnetic wave CT probe hole avoidance device

Abstract

This utility model relates to the field of engineering surveying technology, specifically providing a device for avoiding jamming of an electromagnetic CT probe. The device includes a probe, an electromagnetic CT body, a safety tube, and a processing assembly. The electromagnetic CT body comprises multiple sets of electromagnetic CT units connected in series. The probe is connected to an electromagnetic CT unit at the end of the electromagnetic CT body. The safety tube is sleeved on the outer wall of the electromagnetic CT body. The processing assembly includes a segmentation assembly and an auxiliary assembly. The segmentation assembly is positioned between two adjacent sets of electromagnetic CT units. The auxiliary assembly is connected to an electromagnetic CT unit at the beginning of the electromagnetic CT body. This utility model, through the cooperation of the segmentation assembly and the auxiliary assembly, achieves segmentation of the electromagnetic CT body. When jamming occurs (i.e., the safety tube bends), segmenting the electromagnetic CT body facilitates the gradual removal of multiple electromagnetic CT units, saving on the cost of using the electromagnetic CT probe.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying technology, specifically to an electromagnetic wave CT probe hole avoidance device. Background Technology

[0002] Electromagnetic computed tomography (ECT) is a geophysical exploration technique similar to CT scans in medicine. It reconstructs images of underground structures by analyzing the propagation characteristics of electromagnetic waves in the underground medium. This technique typically involves placing transmitting and receiving probes in two or more boreholes. By measuring the attenuation and phase changes of electromagnetic waves, the resistivity distribution of the underground medium is inferred. In geological defect investigation or detection, electromagnetic CT probes are often stuck in boreholes with poor rock quality because the connection between the probe and the hammer is a flexible wire that is prone to bending, especially in inclined holes.

[0003] As disclosed in Chinese Patent CN212723401U, a simple safety device for preventing jamming of electromagnetic CT probes can generally protect the probes from jamming. In the event of jamming, it can quickly and efficiently avoid the probe, improving work efficiency, increasing success rate, saving costs, and achieving the goal of environmentally friendly and efficient operation. While this structure uses a safety tube to protect the probe, if the probe is not removed from the tube in time and the tube bends, it becomes difficult to remove the probe. Therefore, this paper proposes a device that allows for the gradual removal of jammed electromagnetic CT probes, addressing the issue of bent safety tubes and saving on probe usage costs. Utility Model Content

[0004] The purpose of this utility model is to provide a device for avoiding the jamming of an electromagnetic wave CT probe, so as to solve the technical problems existing in the prior art. The specific technical solution is as follows:

[0005] An electromagnetic wave CT probe hole avoidance device includes a probe, an electromagnetic wave CT body, an avoidance tube, and processing components;

[0006] The electromagnetic wave CT body includes multiple sets of electromagnetic wave CT units connected in series; the probe is connected to the electromagnetic wave CT unit at the end of the electromagnetic wave CT body.

[0007] The safety tube is fitted onto the outer wall of the electromagnetic wave CT body;

[0008] The processing assembly includes a segmentation assembly and an auxiliary assembly. The segmentation assembly is disposed between two adjacent sets of electromagnetic wave CT units. The auxiliary assembly is connected to the electromagnetic wave CT unit at the head end of the electromagnetic wave CT body.

[0009] Furthermore, the segmented assembly includes a fixed plate, a sliding rod, a locking block, a fixed rod, a fixed frustum, and a movable frustum;

[0010] The fixing plate is located at the tail end of the electromagnetic wave CT unit;

[0011] The slide rod passes through the fixed plate and is slidably connected to the fixed plate; a locking block is fixedly installed at the end of the slide rod;

[0012] The fixing rod is fixedly installed at the head end of the adjacent electromagnetic wave CT unit, and the end of the fixing rod is provided with a fixed frustum;

[0013] The movable frustum is slidably sleeved on the outer wall of the fixed rod;

[0014] A snap-fit ​​gap is formed between the fixed truncated cone and the movable truncated cone, and the snap-fit ​​block is slidably disposed within the snap-fit ​​gap.

[0015] Furthermore, the outer wall of the card block is inclined, and the end of the card block away from the slide bar is flat;

[0016] The outer walls of both the fixed and movable truncated cones are inclined, and the inclined surface of the outer wall of the locking block matches the inclined surface of the outer walls of the fixed and movable truncated cones.

[0017] Furthermore, the segmented assembly also includes a first magnetic ring and a second magnetic ring;

[0018] The first magnetic ring is fixed to the side of the fixing plate away from the inner wall of the escape tube;

[0019] The second magnetic ring is fixed to the outer wall of the slide bar and is magnetically repelled by the first magnetic ring.

[0020] Furthermore, the segmented assembly also includes a wiring harness connected between two adjacent electromagnetic wave CT units; the wiring harness is made of a soft material.

[0021] Furthermore, the auxiliary components include cable ties, a support plate, a limiting rod, a spring, and a pressing frame;

[0022] The cable tie is fixed to the inner wall of the safety tube and fits against the outer wall of the electromagnetic wave CT unit at the end of the electromagnetic wave CT body.

[0023] The support plate is detachably connected to the inner wall of the first end of the safety pipe;

[0024] The limiting rod is slidably installed through the support plate. One end of the limiting rod is fixed with a pressing frame, and the other end is connected to the electromagnetic wave CT unit at the head end of the electromagnetic wave CT body.

[0025] The spring is sleeved on the outer wall of the limiting rod.

[0026] Furthermore, the cable ties are made of an elastic material.

[0027] Furthermore, the auxiliary component also includes a pull ring, which is fixedly installed on the outer wall of the first end of the safety tube.

[0028] The application of the technical solution of this utility model has the following beneficial effects:

[0029] (1) This utility model provides an electromagnetic wave CT probe jamming avoidance device, including a probe, an electromagnetic wave CT body, an avoidance tube, and a processing component; the electromagnetic wave CT body includes multiple sets of electromagnetic wave CT units connected in series; the probe is connected to the electromagnetic wave CT unit at the end of the electromagnetic wave CT body; the avoidance tube is sleeved on the outer wall of the electromagnetic wave CT body; the processing component includes a segmentation component and an auxiliary component, the segmentation component is disposed between two adjacent sets of electromagnetic wave CT units; the auxiliary component is connected to the electromagnetic wave CT unit at the beginning of the electromagnetic wave CT body. This utility model realizes the segmentation of the electromagnetic wave CT body through the cooperation of the segmentation component and the auxiliary component. When jamming occurs, i.e., the avoidance tube is bent, the electromagnetic wave CT body is segmented, which facilitates the gradual removal of multiple electromagnetic wave CT units, saving the use cost of the electromagnetic wave CT probe.

[0030] (2) In this utility model, the segmented assembly includes a fixed plate, a sliding rod, a locking block, a fixed rod, a fixed truncated cone, and a movable truncated cone; the fixed plate is disposed at the tail end of the electromagnetic wave CT unit; the sliding rod passes through the fixed plate and is slidably connected to the fixed plate; a locking block is fixedly installed at the end of the sliding rod; the fixed rod is fixedly installed at the head end of an adjacent electromagnetic wave CT unit, and a fixed truncated cone is provided at the end of the fixed rod; the movable truncated cone is slidably sleeved on the outer wall of the fixed rod; a locking gap is formed between the fixed truncated cone and the movable truncated cone, and the locking block is slidably disposed in the locking gap. By locking the locking block in the locking gap between the fixed truncated cone and the movable truncated cone, the connection of adjacent electromagnetic wave CT units is realized; by driving the locking block out of the locking gap through the auxiliary component, the segmentation between electromagnetic wave CT units is realized, so that multiple electromagnetic wave CT units can be gradually removed.

[0031] (3) In this utility model, the outer wall of the card block is set with an incline, and the end of the card block away from the slide rod is a plane; the outer walls of the fixed truncated cone and the movable truncated cone are both set with inclines, and the incline of the outer wall of the card block matches the incline of the outer wall of the fixed truncated cone and the movable truncated cone; which facilitates the relative sliding and contact between the card block and the fixed truncated cone and the movable truncated cone.

[0032] (4) In this utility model, the segmented assembly also includes a first magnetic ring and a second magnetic ring. The first magnetic ring is fixed to the side of the fixing plate away from the inner wall of the escape tube; the second magnetic ring is fixed to the outer wall of the slide rod and is magnetically repulsive to the first magnetic ring. The repulsive magnetic force can push the card block to move. During normal detection operation, the card block is stably engaged in the engagement gap to ensure a stable connection between adjacent electromagnetic wave CT units. When segmenting, the inclined surface of the card block is pressed against the outer wall of the movable truncated cone to enable the card block to drive the movable truncated cone to slide along the slide rod.

[0033] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0034] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0035] Figure 1 This is a schematic diagram of the overall structure of the electromagnetic wave CT probe hole avoidance device in this utility model;

[0036] Figure 2 yes Figure 1 A sectional view;

[0037] Figure 3 This is a schematic diagram showing the connection between the segmented component and the electromagnetic wave CT unit in this utility model;

[0038] Figure 4 This is a structural diagram of the segmented component;

[0039] Figure 5 This is a structural diagram of the auxiliary component.

[0040] The components include: 1. Probe; 2. Electromagnetic wave CT body; 3. Hazard avoidance tube; 4. Processing assembly; 41. Segmentation assembly; 411. Fixing plate; 412. First magnetic ring; 413. Slide rod; 414. Second magnetic ring; 415. Locking block; 416. Fixing rod; 417. Fixed truncated cone; 418. Movable truncated cone; 419. Wire harness; 42. Auxiliary assembly; 421. Cable tie; 422. Pull ring; 423. Support plate; 424. Limiting rod; 425. Spring; 426. Pressing frame. Detailed Implementation

[0041] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered.

[0042] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", "lateral", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] Example:

[0045] See Figure 1 and Figure 2 This embodiment provides an electromagnetic wave CT probe hole avoidance device, including a probe 1, an electromagnetic wave CT body 2, an avoidance tube 3, and a processing component 4;

[0046] The electromagnetic wave CT body 2 includes multiple sets of electromagnetic wave CT units connected in series; the probe 1 is connected to the electromagnetic wave CT unit at the end of the electromagnetic wave CT body 2.

[0047] The safety tube 3 is sleeved on the outer wall of the electromagnetic wave CT body 2 and is used to protect the electromagnetic wave CT body 2.

[0048] The processing component 4 includes a segmentation component 41 and an auxiliary component 42. The segmentation component 41 is disposed between two adjacent groups of electromagnetic wave CT units and is used to realize the connection and segmentation between the two adjacent groups of electromagnetic wave CT units. The auxiliary component 42 is connected to the electromagnetic wave CT unit at the head end of the electromagnetic wave CT body 2 and is used to drive the electromagnetic wave CT unit to move in order to realize the segmentation between the two adjacent groups of electromagnetic wave CT units.

[0049] See Figure 3 and Figure 4 The segmented assembly 41 includes a fixed plate 411, a first magnetic ring 412, a slide rod 413, a second magnetic ring 414, a locking block 415, a fixed rod 416, a fixed frustum 417, a movable frustum 418, and a wire harness 419.

[0050] The fixing plate 411 is disposed at the tail end of the electromagnetic wave CT unit; the slide rod 413 passes through the fixing plate 411 and is slidably connected to the fixing plate 411; a locking block 415 is fixedly installed at one end of the slide rod 413, and a limiting plate is fixed at the other end, the limiting plate being used to prevent the slide rod 413 from coming out of the fixing plate 411.

[0051] The fixing rod 416 is fixedly installed at the head end of the adjacent electromagnetic wave CT unit, and the end of the fixing rod 416 is provided with a fixed frustum 417; the movable frustum 418 is slidably sleeved on the outer wall of the fixing rod 416.

[0052] A snap-fit ​​gap is formed between the fixed frustum 417 and the movable frustum 418, and the snap-fit ​​block 415 is slidably disposed in the snap-fit ​​gap; when the device is operating normally, the snap-fit ​​block 415 is snapped into the snap-fit ​​gap, so that the adjacent electromagnetic wave CT units are relatively fixed.

[0053] In this embodiment, the outer wall of the locking block 415 is inclined, which facilitates the locking block 415 to disengage from the locking gap when it is pressed against the movable frustum 418; the end of the locking block 415 away from the slide rod 413 is flat, which facilitates the locking block 415 to slide smoothly through the fitting gap between the fixed frustum 417 and the movable frustum 418; the outer walls of both the fixed frustum 417 and the movable frustum 418 are inclined, and the inclined surface of the outer wall of the locking block 415 matches the inclined surface of the outer walls of the fixed frustum 417 and the movable frustum 418, which facilitates the relative sliding and fitting of the locking block 415 with the fixed frustum 417 and the movable frustum 418.

[0054] The first magnetic ring 412 is fixed to the side of the fixed plate 411 away from the inner wall of the safety tube 3; the second magnetic ring 414 is fixed to the outer wall of the slide rod 413 and is magnetically repulsive to the first magnetic ring 412; the repulsive magnetic force can push the locking block 415 to move, so that the locking block 415 is stably locked in the locking gap during normal detection operation, ensuring a stable connection between adjacent electromagnetic wave CT units; when segmenting, the inclined surface of the locking block 415 is pressed against the outer wall surface of the movable truncated cone 418, so that the locking block 415 drives the movable truncated cone 418 to slide along the slide rod 413.

[0055] The wire harness 419 is connected between two adjacent groups of electromagnetic wave CT units and is used for connection between adjacent electromagnetic wave CT units after segmentation. The wire harness 419 is made of soft material and can be bent and installed between two adjacent groups of electromagnetic wave CT units. The length of the wire harness 419 between two adjacent groups of electromagnetic wave CT units can be set according to actual needs.

[0056] See Figure 5The auxiliary component 42 includes a cable tie 421, a pull ring 422, a support plate 423, a limiting rod 424, a spring 425, and a pressing frame 426. The cable tie 421 is fixed to the inner wall of the safety tube 3 and fits against the bottom end of the outer wall of the electromagnetic wave CT unit at the end of the electromagnetic wave CT body 2. The cable tie 421 is made of elastic material. The cable tie 421 is set to limit the electromagnetic wave CT unit at the end of the electromagnetic wave CT body 2 to prevent the probe 1 from pushing the electromagnetic wave CT unit when it is squeezed, so that the movable truncated cone 418 actively squeezes against the inclined surface of the locking block 415, causing mis-segmentation.

[0057] The pull ring 422 is fixedly installed on the outer wall of the first end of the safety tube 3; the support plate 423 is detachably connected to the inner wall of the first end of the safety tube 3 by bolts; the limiting rod 424 is slidably installed through the support plate 423, one end of the limiting rod 424 is fixed with a pressing frame 426, and the other end is connected to the electromagnetic wave CT unit at the first end of the electromagnetic wave CT body 2; the spring 425 is sleeved on the outer wall of the limiting rod 424 between the pressing frame 426 and the support plate 423;

[0058] In this embodiment, four sets of support plates 423 are evenly distributed around the perimeter of the safety tube 3. Correspondingly, four sets of limiting rods 42 are provided. The support plates 423 guide and limit the movement of the electromagnetic wave CT unit, preventing the electromagnetic wave CT unit 2 and the probe from sliding freely inside the safety tube 3.

[0059] In this embodiment, when geological exploration is required, the probe 1, the electromagnetic wave CT body 2, and the safety tube 3 are inserted deep into the rock. When the rock collapses and squeezes the safety tube 3, it causes the safety tube 3 to bend. At this time, the electromagnetic wave CT body 2 and the probe 1 need to be removed in sections. At this time, the pull ring 422 is held steady to keep the safety tube stationary, and the pressing frame 426 is pressed to push the electromagnetic wave CT body 2, causing the fixing plate 411 fixedly installed at the tail end of the electromagnetic wave CT unit to move towards the probe 1, and the locking block 415... The inclined surface contacts and presses against the movable frustum 418 at the head end of the adjacent electromagnetic wave CT unit, causing the slide rod 413 to slide inside the fixed plate 411 under pressure. When the end of the locking block 415 contacts the outer wall of the movable frustum 418, the pressing frame 426 is released, and under the action of the spring 425, each electromagnetic wave CT unit is pulled in the opposite direction, causing the electromagnetic wave CT unit to move along with the fixed plate 411 and the slide rod 413. Since the second magnetic ring 414 and the first magnetic ring 412 are magnetically repelled, under the magnetic force, the locking block 415 and the first magnetic ring 412 are pushed together. The movable frustum 418 is pressed down, causing the slide rod 413 to slide on the outer wall of the fixed rod 416 via the locking block 415. When the movable frustum 418 is in contact with the fixed frustum 417, the electromagnetic wave CT unit is pulled further, causing the fixed plate 411 to move the slide rod 413 that is slidably set inside it, causing the locking block 415 to slide on the outer wall of the movable frustum 418. Since the movable frustum 418 and the fixed frustum 417 are in contact, the locking block 415 moves from the outer wall of the movable frustum 418 to the outer wall of the fixed frustum 417. The wall slides, allowing the locking block 415 to pass through the fixed frustum 417. At this point, the locking block 415 is no longer engaged with the locking gap of the movable frustum 418 of the fixed frustum 417, thus achieving segmentation between adjacent electromagnetic wave CT units. The segmented electromagnetic wave CT units are connected by wire harnesses 419 (four wire harnesses are used in this embodiment). At this point, the wire harnesses 419 can be straightened, allowing the segmented electromagnetic wave CT bodies 2 to be gradually removed from the curved safety tube 3, preventing the probe 1 and the electromagnetic wave CT body 2 from getting stuck in the rock.

[0060] In this embodiment, the device described above is used for hazard avoidance, including the following steps:

[0061] S1. Press the pressing frame 426 to drive each electromagnetic wave CT unit to move towards the probe 1, so that the inclined surface of the locking block 415 is pressed against the movable round table 418, and the slide rod 413 retracts in the fixed plate 411.

[0062] S2. The electromagnetic wave CT unit moves towards the probe 1 until the inclined surface of the slide bar 413 contacts the outer wall of the movable frustum 418. Under the push of the repulsive magnetic force between the first magnetic ring 412 and the second magnetic ring 414, the locking block 415 abuts against the outer wall of the movable frustum 418.

[0063] S3. Release the pressing frame 426. Under the action of the spring 425, pull each electromagnetic wave CT unit in the opposite direction. The fixed plate 411, together with the slide rod 413 and the locking block 415, moves away from the probe 1 and drives the movable round table 418 to slide towards the fixed round table 417 until the movable round table 418 and the fixed round table 417 are in contact.

[0064] S4. Continue to pull the pressing frame 426, and the locking block 415 continues to move away from the probe 1, so that the locking block 415 slides away from the fixed round table 417, realizing the segmentation of the electromagnetic wave CT body 2.

[0065] S5. Disassemble the support plate 423, pull the straight beam 419 and remove the electromagnetic wave CT body 2 segment by segment.

[0066] During normal detection operations, the displacement of the electromagnetic wave CT unit at the end of the electromagnetic wave CT body 2 is restricted by the cable tie 421 to prevent the probe 1 from being compressed and causing incorrect segmentation.

[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electromagnetic wave CT probe card hole hedging device, characterized in that, It includes a probe (1), an electromagnetic wave CT body (2), a safety tube (3), and a processing component (4). The electromagnetic wave CT body (2) includes multiple sets of electromagnetic wave CT units connected in series; the probe (1) is connected to the electromagnetic wave CT unit at the end of the electromagnetic wave CT body (2). The safety tube (3) is sleeved on the outer wall of the electromagnetic wave CT body (2); The processing component (4) includes a segmentation component (41) and an auxiliary component (42). The segmentation component (41) is disposed between two adjacent electromagnetic wave CT units. The auxiliary component (42) is connected to the electromagnetic wave CT unit at the head end of the electromagnetic wave CT body (2).

2. The electromagnetic wave CT probe card hole hedge device according to claim 1, characterized in that, The segmented assembly (41) includes a fixed plate (411), a slide bar (413), a locking block (415), a fixed rod (416), a fixed frustum (417), and a movable frustum (418). The fixing plate (411) is located at the tail end of the electromagnetic wave CT unit; The slide rod (413) passes through the fixed plate (411) and is slidably connected to the fixed plate (411); a locking block (415) is fixedly installed at the end of the slide rod (413). The fixing rod (416) is fixedly installed at the head end of the adjacent electromagnetic wave CT unit, and the end of the fixing rod (416) is provided with a fixing frustum (417). The movable frustum (418) is slidably sleeved on the outer wall of the fixed rod (416); A snap-fit ​​gap is formed between the fixed truncated cone (417) and the movable truncated cone (418), and the snap-fit ​​block (415) is slidably disposed in the snap-fit ​​gap.

3. The electromagnetic wave CT probe card hole hedge device according to claim 2, characterized in that, The outer wall of the card block (415) is inclined, and the end of the card block (415) away from the slide bar (413) is flat; The outer walls of the fixed truncated cone (417) and the movable truncated cone (418) are both inclined, and the inclined surface of the outer wall of the locking block (415) matches the inclined surface of the outer wall of the fixed truncated cone (417) and the movable truncated cone (418).

4. The electromagnetic wave CT probe card hole hedge device according to claim 3, characterized in that, The segmented assembly (41) further includes a first magnetic ring (412) and a second magnetic ring (414). The first magnetic ring (412) is fixed to the side of the fixing plate (411) away from the inner wall of the safety tube (3); The second magnetic ring (414) is fixed to the outer wall of the slide bar (413) and is magnetically repulsive to the first magnetic ring (412).

5. The electromagnetic wave CT probe card hole hedge device according to claim 2, characterized in that, The segmented assembly (41) also includes a wire harness (419) which is connected between two adjacent electromagnetic wave CT units; the wire harness (419) is made of a soft material.

6. The electromagnetic wave CT probe card hole hedging device according to any one of claims 1-5, characterized in that, The auxiliary component (42) includes a cable tie (421), a support plate (423), a limiting rod (424), a spring (425), and a pressing frame (426). The cable tie (421) is fixed to the inner wall of the safety tube (3) and fits against the outer wall of the electromagnetic wave CT unit at the end of the electromagnetic wave CT body (2); The support plate (423) is detachably connected to the inner wall of the head end of the safety pipe (3); The limiting rod (424) is slidably inserted through the support plate (423). One end of the limiting rod (424) is fixed with a pressing frame (426), and the other end is connected to the electromagnetic wave CT unit at the head end of the electromagnetic wave CT body (2). The spring (425) is sleeved on the outer wall of the limiting rod (424).

7. The electromagnetic wave CT probe hole avoidance device according to claim 6, characterized in that, The cable tie (421) is made of elastic material.

8. The electromagnetic wave CT probe hole avoidance device according to claim 6, characterized in that, The auxiliary component (42) also includes a pull ring (422), which is fixedly installed on the outer wall of the head end of the safety tube (3).

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