In-hole detection device

Abstract

The utility model discloses an in-hole detection device, when the probe is buried in the hole, the probe can be pulled out, the technical scheme is that the in-hole detection device comprises the probe, a cable and a host machine, the cable is connected with the probe and the host machine, the in-hole detection device further comprises a suspension cage, a traction rope and a connecting rope, the probe is located in the suspension cage, the traction rope is connected with the host machine, and the connecting rope is connected with the suspension cage. The cable penetrates through the suspension cage, one end of the traction rope is fixedly connected with the suspension cage, the connecting ropes are connected with the cable and the traction rope, the number of the connecting ropes is multiple, and the cable is arranged at intervals in the length direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of exploration, and more specifically, relates to a downhole detection device. Background Art

[0002] After drilling on the construction site, some drill holes need to be subjected to downhole geophysical prospecting tests to assist in finding out formation physical property parameters.

[0003] In the prior art, generally a probe is used for downhole geophysical prospecting tests. The probe is connected to the main machine through a flexible cable. The probe is lowered into the hole by using the flexible cable. After the test is completed, the probe is retrieved by using the flexible cable. However, in actual use, unexpected situations such as underground karst, fractured rock mass, and hole collapse may occur, resulting in the probe being buried by the collapsed sand layer or stuck in a solution cavity or crack. At this time, if the flexible cable is strongly pulled, the cable is likely to break or fall off from the joint of the probe, resulting in the loss of the probe and a large loss. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a downhole detection device, which can pull out the probe when the probe is buried in the hole.

[0005] According to the first aspect of the utility model, a downhole detection device is provided, which includes a probe, a cable, and a main machine. The cable connects the probe and the main machine. The device further includes a cage, a towing rope, and a connecting rope. The probe is located in the cage. The cable passes through the cage. One end of the towing rope is fixedly connected to the cage. The connecting rope connects the cable and the towing rope. There are multiple connecting ropes and they are arranged at intervals along the length direction of the cable.

[0006] In the above downhole detection device, a wire winding frame is further included, and the towing rope can be wound up through the wire winding frame.

[0007] In the above downhole detection device, the cage is made of metal or plastic.

[0008] In the above downhole detection device, a filling layer is provided between the inner wall of the cage and the probe.

[0009] In the above downhole detection device, the upper end of the cage is an arc-shaped end.

[0010] At least one of the technical solutions in the above technical solutions of the utility model has the following advantages or beneficial effects:

[0011] In the present utility model, the probe is built into a cage, and at the same time, a traction rope is fixed to the cage. During use, the cage is lowered into the hole, and the probe will also enter the hole accordingly. The traction rope and the cable enter synchronously. After the test is completed, in case of an accident, the traction rope can be used to pull the cage, so that the probe can be taken out and the cable will not be broken;

[0012] Moreover, the traction rope and the cable are connected by connecting ropes. There are multiple connecting ropes and they are arranged at intervals along the length direction of the cable. Therefore, the connecting ropes restrict each other, so that the traction rope and the cable will not be wound together. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0014] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model;

[0015] Figure 2 is a cross-sectional view of the cage of the first embodiment of the present utility model.

[0016] Among them, the reference numerals in each figure:

[0017] 1, probe; 2, cable; 3, main unit; 4, cage; 41, filling layer; 5, traction rope; 6, connecting rope; 7, wire winding frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0019] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.

[0020] Referring to Figures 1 to 2 As shown, in one embodiment of the present utility model, a hole detection device includes a probe 1, a cable 2 and a main unit 3. The cable 2 connects the probe 1 and the main unit 3. It further includes a cage 4, a traction rope 5 and a connecting rope 6. The probe 1 is located in the cage 4. The cable 2 passes through the cage 4. One end of the traction rope 5 is fixedly connected to the cage 4. During use, the cage 4 is lowered into the hole, and the probe 1 will also enter the hole accordingly. The traction rope 5 and the cable 2 enter synchronously. After the test is completed, in case of an accident, the traction rope 5 can be used to pull the cage 4, so that the probe 1 can be taken out and the cable 2 will not be broken;

[0021] The connecting rope 6 connects the cable 2 and the towing rope 5. There are multiple connecting ropes 6, which are arranged at intervals along the length direction of the cable 2. Therefore, the connecting ropes 6 restrict each other, so that the towing rope 5 and the cable 2 will not be wound together.

[0022] In this embodiment, the cage 4 is made of metal material with high strength. There are multiple through holes on the cage 4 to facilitate the conduction of elastic waves.

[0023] In some other embodiments, when using the electrical and magnetic methods for testing, to prevent signal shielding, the cage 4 is made of high-strength plastic material.

[0024] During actual use, the material of the cage 4 can be selected according to the type of the emission source of the probe 1 to avoid the cage 4 affecting the detection work of the probe 1.

[0025] In this embodiment, the towing rope 5 also requires high-strength material to avoid breakage of the towing rope 5 during pulling.

[0026] In this embodiment, a wire winding frame 7 is also provided. The wire winding frame 7 is located on the ground, and the towing rope 5 can be wound through the wire winding frame 7, so as to facilitate pulling out the cage 4;

[0027] The cable 2 can also be wound using the wire winding frame 7, but it should be noted that the cable 2 needs to be disconnected from the host 3 first before winding.

[0028] In this embodiment, a filling layer 41 is provided between the inner wall of the cage 4 and the probe 1. The filling layer 41 can buffer the impact force received by the cage 4, protect the probe 1, and at the same time ensure the posture of the probe always perpendicular to the ground.

[0029] Preferably, the upper end of the cage 4 is an arc-shaped end. During pulling, the arc-shaped end is convenient for penetrating the mud layer.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An in-hole detection device, comprising a probe, a cable and a host, wherein the cable connects the probe and the host, and is characterized in that: It also includes a cage, a traction rope and a connecting rope, wherein the probe is located in the cage, the cable passes through the cage, one end of the traction rope is fixedly connected to the cage, the connecting rope connects the cable and the traction rope, and the connecting rope is multiple and arranged at intervals along the length direction of the cable; A filling layer is provided between the inner wall of the cage and the probe.

2. The in-hole detection device according to claim 1, characterized in that: A winding frame is also included, and the traction rope can be wound through the winding frame.

3. The in-hole detection device according to claim 1, characterized in that: The material of the hanging cage is metal or plastic.

4. The in-hole detection device according to claim 1, characterized in that: The upper end of the cage is an arc-shaped end.

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