Drilling peeping device capable of accurately recording surrounding rock fracture form

Abstract

The utility model relates to a drilling peeping device capable of accurately recording the shape of a surrounding rock fracture, which comprises a main body, a hollow push rod, directional pulleys, a sleeve slide bar mechanism, a plurality of external camera systems and a control system, the peripheral side of the main body is provided with a plurality of directional pulleys through the sleeve slide bar mechanism, and the outer side of the main body is provided with a plurality of external camera systems. A hollow push rod is arranged at the bottom of the body; the sleeve sliding rod mechanism comprises a sliding rod, a sleeve and a spring, the sleeve is fixed to the body, the sliding rod is sleeved with the sleeve, one end of the sliding rod is connected with a directional pulley, a push-pull type electromagnet is arranged on the inner wall, corresponding to the other end of the sliding rod, of the body, the body is provided with a through hole for the sliding rod to penetrate through, the sliding rod is sleeved with the spring, and one end of the spring is fixedly connected with the sliding rod. The push-pull type electromagnet and the external camera system are both connected with a control system. The device can adapt to a complex drilling environment and digitally record spatial distribution characteristics of fractures.

Description

Technical Field

[0001] The utility model relates to a borehole peephole device for accurately recording the morphology of surrounding rock fissures, belonging to the technical field of borehole exploration. Background Technique

[0002] In the fields of geological exploration, mine exploitation, etc., in order to determine the basic structural information of borehole rock masses, it is necessary to use a borehole peephole device to record and analyze the spatial distribution characteristics and development conditions of surrounding rock fissures, so as to understand geological structures, evaluate the stability and mechanical properties of rocks, and thus provide reliable data support for engineering construction.

[0003] Traditional borehole peephole devices mostly use optical imaging to record the morphology of surrounding rock fissures, mostly image information, and cannot digitally characterize the inclination angle, extension direction, and width of fissures, making it difficult to meet the requirements for the accuracy of fissure observation data in refined engineering construction. In addition, traditional borehole peephole devices mostly use a single rigid structure and are difficult to adapt to complex and unknown borehole environments. Therefore, the present utility model is proposed. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the utility model provides a borehole peephole device for accurately recording the morphology of surrounding rock fissures, which can adapt to complex borehole environments, digitally record the spatial distribution characteristics of fissures, directly obtain quantitative parameters reflecting the occurrence and scale of fissures, and improve the scientificity and reliability of engineering construction.

[0005] The technical solution of the utility model is as follows:

[0006] A borehole peephole device for accurately recording the morphology of surrounding rock fissures includes a main body, a hollow push rod, a directional pulley, a sleeve sliding rod mechanism, an external hanging camera system, and a control system. Among them,

[0007] A number of directional pulleys are arranged on the periphery of the main body through the sleeve sliding rod mechanism, a number of external hanging camera systems are arranged outside the main body, and when installing the external hanging camera system, it is necessary to ensure that all the directional pulleys are included in the shooting range. A hollow push rod is arranged at the bottom of the main body, and the inside of the hollow push rod can be used as a wire threading position;

[0008] The sleeve sliding rod mechanism includes a sliding rod, a sleeve, and a spring. The sleeve is fixed to the main body, the sliding rod is sleeved inside the sleeve, one end of the sliding rod is connected with a directional pulley, and a push-pull electromagnet is arranged on the inner wall of the main body corresponding to the other end. A through hole for the sliding rod to pass through is arranged on the main body, a spring is sleeved on the sliding rod, one end of the spring is fixedly connected to the sliding rod, and the other end is fixed to the main body. Both the push-pull electromagnet and the external hanging camera system are connected to the control system.

[0009] Preferably according to the utility model, a front camera is arranged at the top of the main body.

[0010] Preferably according to the present utility model, a Hall sensor is provided on the outer shell of the directional pulley, a magnet cooperating with the Hall sensor is provided on the directional pulley, and the Hall sensor is connected to a counter. The Hall sensor senses the magnet to obtain the rolling distance of the directional pulley.

[0011] Preferably according to the present utility model, a scale is provided on the outer periphery of the directional pulley.

[0012] During use, the peeping device is pushed deep into the borehole through the hollow push rod. The directional pulley contacts the borehole wall. After the spring is stressed, it drives the sliding rod to slide in the sleeve, adjusts the distance between the directional pulley and the main body, and makes the directional pulley closely adhere to the borehole wall. The Hall sensor and the counter are used to record the moving distances of multiple pulleys and correct each other. When the directional pulley moves to the crack, the scale value displayed by the directional pulley at the crack is photographed and recorded. This scale value is the arc length. The crack width can be calculated using geometric formulas (conventional geometric formulas, not elaborated here) in combination with the radian and diameter of the directional pulley stuck at the crack.

[0013] Continue to push the device until the directional pulley contacts the crack again. The crack dip angle α is obtained through the moving distance and different crack contact positions, achieving the purpose of accurately recording the crack morphology of the borehole surrounding rock. When the device gets stuck in the deep borehole and cannot be pulled out, the pulley can be retracted by adjusting the push-pull electromagnet, and then the device can be withdrawn from the borehole.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The present utility model realizes one-key control by using a push-pull electromagnet, can quickly adjust the extension and retraction of the pulley, is suitable for complex and unknown borehole environments, can quickly retract the directional pulley, and effectively avoids the situation where the equipment gets stuck in the deep borehole and cannot be recovered.

[0016] 2. Through the combination of the front camera and the external camera system, the present utility model can digitally characterize the inclination angle, extension direction and width of the crack, and accurately record the crack morphology of the borehole surrounding rock. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic diagram of the main structure of the present utility model, where Figure 2 (a) is a front view, Figure 2 (b) is a top view;

[0019] Figure 3 is a schematic diagram of the directional pulley of the present utility model for measuring the crack width;

[0020] Figure 4Schematic diagram of the principle for measuring the dip angle of fractures of the present utility model.

[0021] The reference signs are as follows:

[0022] 1 - Main body; 2 - Hollow push rod; 3 - Directional pulley; 4 - Sleeve sliding rod mechanism; 5 - Push - pull electromagnet; 6 - External camera system; 7 - Control system;

[0023] 11 - Front camera; 12 - Counter;

[0024] 31 - Outer shell;

[0025] 41 - Sliding rod; 42 - Sleeve;

[0026] 61 - Mounting bracket; 62 - External camera;

[0027] 71 - Computer; 72 - Display screen. Detailed implementation manners

[0028] The present utility model will be further described below through embodiments in conjunction with the drawings, but not limited thereto.

[0029] Embodiment 1:

[0030] As Figures 1-4 shown, this embodiment provides a borehole peeping device for accurately recording the fracture morphology of surrounding rock, including a main body 1, a hollow push rod 2, a directional pulley 3, a sleeve sliding rod mechanism 4, an external camera system 6 and a control system 7. Among them,

[0031] A number of directional pulleys 3 are arranged on the periphery of the main body 1 through the sleeve sliding rod mechanism 4, and a number of external camera systems 6 are arranged outside the main body 1. When installing the external camera system 6, it should be noted that all the directional pulleys 3 are included in the shooting range. A hollow push rod 2 is arranged at the bottom of the main body 1, and the inside of the hollow push rod can be used as a wire threading position;

[0032] The sleeve sliding rod mechanism 4 includes a sliding rod 41, a sleeve 42 and a spring. The sleeve 42 is fixed to the main body 1. The sliding rod 41 is sleeved inside the sleeve 42. One end of the sliding rod 41 is connected to a directional pulley 3, and a push - pull electromagnet 5 is arranged on the inner wall of the main body 1 corresponding to the other end. A through - hole for the sliding rod to pass through is arranged on the main body. A spring is sleeved on the sliding rod. One end of the spring is fixedly connected to the sliding rod 41, and the other end is fixed to the main body 1. Both the push - pull electromagnet 5 and the external camera system 6 are connected to the control system 7. The control system includes a computer 71 and a display screen 72. The push - pull electromagnet 5 is a commercially available existing device.

[0033] A front camera 11 is arranged at the top of the main body 1. The external camera system 6 includes an external camera 62 and a mounting bracket 61. The external camera 62 is installed on the main body 1 through the mounting bracket 61.

[0034] A Hall sensor is provided on the outer shell 31 of the directional pulley 3, a magnet cooperating with the Hall sensor is provided on the directional pulley, the Hall sensor is connected to a counter 12, and the counter 12 is fixed to the main body 1. The Hall sensor is used to sense the magnet, and then the rolling distance of the directional pulley is obtained.

[0035] A scale is provided on the outer periphery of the directional pulley 3.

[0036] During use, the peeping device is pushed deep into the borehole through the hollow push rod. The directional pulley 3 contacts the borehole wall. After the spring is stressed, it drives the sliding rod 41 to slide in the sleeve 42, adjusts the distance between the directional pulley 3 and the main body 1, and makes the directional pulley 3 closely adhere to the borehole wall. The Hall sensor and the counter 12 are used to record the moving distances of multiple pulleys and correct each other. When the directional pulley 3 moves to the fracture, the scale value (as Figure 3 shown) displayed by the directional pulley at the fracture is photographed and recorded. This scale value is the arc length. Combining the radian and diameter of the directional pulley stuck at the fracture, the fracture width can be calculated using geometric formulas (conventional geometric formulas, not elaborated here).

[0037] Continue to push the device until the directional pulley 3 contacts the fracture again. The fracture dip angle α (as Figure 4 ) is obtained through the moving distance and different fracture contact positions, achieving the purpose of accurately recording the fracture morphology of the borehole surrounding rock. When the device gets stuck deep in the borehole and cannot be pulled out, the pulley can be retracted by adjusting the push-pull electromagnet, and then the device can be withdrawn from the borehole.

Claims

1. A borehole peephole device for accurately recording the morphology of surrounding rock fissures, characterized in that, It includes a main body, a hollow push rod, a directional pulley, a sleeve sliding rod mechanism, an external camera system and a control system. Among them, A number of directional pulleys are arranged on the periphery of the main body through the sleeve sliding rod mechanism, a number of external camera systems are arranged on the outside of the main body, and a hollow push rod is arranged at the bottom of the main body; The sleeve sliding rod mechanism includes a sliding rod, a sleeve and a spring. The sleeve is fixed to the main body. The sliding rod is sleeved in the sleeve. One end of the sliding rod is connected with a directional pulley, and a push-pull electromagnet is arranged on the inner wall of the main body corresponding to the other end. A through hole for the sliding rod to pass through is arranged on the main body. A spring is sleeved on the sliding rod. One end of the spring is fixedly connected with the sliding rod, and the other end is fixed to the main body. The push-pull electromagnet and the external camera system are both connected with the control system.

2. The borehole peephole device for accurately recording the fracture morphology of surrounding rock according to claim 1, characterized in that, A front camera is arranged at the top of the main body.

3. The borehole peephole device for accurately recording the shape of surrounding rock fissures according to claim 2, characterized in that, A Hall sensor is arranged on the outer shell of the directional pulley, a magnet cooperating with the Hall sensor is arranged on the directional pulley, and the Hall sensor is connected with a counter.

4. The borehole peephole device for accurately recording the shape of surrounding rock fractures according to claim 3, characterized in that, Scales are arranged on the outer periphery of the directional pulley.

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