CN220395668U

CN220395668U - Borehole interior detection device

Info

Publication number: CN220395668U
Application number: CN202321927835.2U
Authority: CN
Inventors: 刘政安; 张宝桥; 鲁成; 鲁浩然
Original assignee: Anbaituo Nanjing Construction Mining Equipment Co ltd
Current assignee: Anbaituo Nanjing Construction Mining Equipment Co ltd
Priority date: 2022-07-21
Filing date: 2023-07-20
Publication date: 2024-01-26
Anticipated expiration: 2033-07-20
Also published as: CN116717235A; CN220752488U; CN220451857U; CN220752489U; WO2024017368A1; CN115263276A; CN116717233A; CN116677368A

Abstract

The application discloses detection equipment in drilling, it includes: the detector comprises a detector head, a battery, a shell and a roller; wherein the probe is used for detecting the inside of the drill hole; the detection head is positioned at one end of the detection equipment in the drill hole along the first straight line direction; the length direction of the detection equipment in the drilling hole is parallel to the first straight line direction; the battery is electrically connected to the probe; the housing is formed with a receiving chamber for receiving the battery; the roller is movably connected to the shell so that the roller has a first limit position and a second limit position relative to the shell; the component of the distance between the axes of rotation of the rollers in a second straight direction perpendicular to the first straight direction when the rollers are in the first and second extreme positions is defined as the lateral extreme distance of the rollers; the diameter of the roller is larger than or equal to the transverse limit distance of the roller. The in-borehole detection device has the advantage that geological information of combination of the image and the hole depth is conveniently obtained.

Description

Borehole interior detection device

Technical Field

The application relates to the technical field of geological exploration, in particular to a detection device in a drilling hole.

Background

The drill jumbo is a rock drilling device for tunnel and underground engineering, in the underground engineering, because the front geological condition is not known, the construction has great blindness, has great potential safety hazard, if accidents occur in the construction process, the construction period is affected slightly, the machinery is destroyed seriously, and even the casualties are caused. The advanced geological forecast of the tunnel is to collect geological information of rock strata around the tunnel by utilizing a certain technology and means so as to forecast possible problems in front of tunnel construction in advance.

In the related art, for example, chinese patent document with publication number CN114135297B describes a shelter structure detection system and method integrally carried by a rock drilling trolley, the rock drilling trolley comprises a drilling camera module, a scanning module and a processing module, the processing module receives an image in a rock hole collected by the drilling camera module, and a multi-rock spectrum image and tunnel face point cloud data collected by the scanning module, and obtains rock structure information in front of a tunnel according to the image and the tunnel face point cloud data, however, it is inconvenient to obtain geological information of combining the image and the hole depth.

In view of the problems existing in the related art, no effective solution has been proposed at present.

Disclosure of Invention

The content of the present application is intended to introduce concepts in a simplified form that are further described below in the detailed description. The section of this application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

Some embodiments of the present application provide an in-borehole detection apparatus to solve the technical problems mentioned in the background section.

To solve the technical problems mentioned in the background section above, some embodiments of the present application provide an in-borehole detection apparatus, including: the detector comprises a detector head, a battery, a shell and a roller; wherein the probe is used for detecting the inside of the drill hole; the detection head is positioned at one end of the detection equipment in the drill hole along the first straight line direction; the length direction of the detection equipment in the drilling hole is parallel to the first straight line direction; the battery is electrically connected to the probe; the housing is formed with a receiving chamber for receiving the battery; the roller is movably connected to the shell so that the roller has a first limit position and a second limit position relative to the shell; the component of the distance between the axes of rotation of the rollers in a second straight direction perpendicular to the first straight direction when the rollers are in the first and second extreme positions is defined as the lateral extreme distance of the rollers; the diameter of the roller is larger than or equal to the transverse limit distance of the roller.

Further, the ratio of the diameter of the roller to the lateral limit distance of the roller is in the range of 1.0 to 4.0.

Further, the ratio of the diameter of the roller to the width of the roller ranges from 1.2 to 3.3.

Further, the outer edges of the rollers are located on the same side of the housing when the rollers are in the first limit position and the second limit position.

Further, the width of the shell is larger than or equal to the width of the roller.

Further, the ratio of the width of the shell to the width of the roller is in the range of 2.0 to 5.4.

Further, the roller is disposed between the probe and the battery.

Further, the housing is formed with a mounting interface for coupling the in-borehole sonde to a drill pipe; the roller is disposed between the probe head and the mounting interface.

Further, the in-borehole detection apparatus further comprises: a circuit board; the housing comprises: a first pod, a second pod, a third pod, and an inter-pod support; wherein, the circuit board is electrically connected with the probe or/and the battery; the first cabin is used for accommodating a battery; the second cabin is used for accommodating the circuit board; a third pod for housing at least a portion of the probe; the inter-cabin support is arranged between the second cabin shell and the third cabin shell so as to form a hollowed-out space for accommodating the roller wheels.

Further, the in-borehole detection apparatus further comprises: a support swing arm and an elastic member; wherein, two ends of the supporting swing arm are respectively connected with the roller and the bracket between cabins in a rotating way; the elastic component is arranged on the support swing arm and the cabin bracket to bias the support swing arm to move to a preset position relative to the cabin bracket; the support swing arm is at least partially accommodated in the hollowed-out space.

Further, the in-borehole detection apparatus further comprises: a grating encoder; the grating encoder comprises a coding disc capable of being linked with the roller and a photoelectric sensor for detecting the rotation of the coding disc; the photoelectric sensor is electrically connected to the battery; the diameter of the roller is 30mm to 50mm.

The application has the advantages that: an in-borehole detection device is provided that facilitates obtaining geological information of a combination of an image and a hole depth.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:

FIG. 1 is a schematic view of an in-borehole detection apparatus according to one embodiment of the present application as assembled to a rock drilling rig;

FIG. 2 is a schematic view of the in-borehole detection apparatus shown in FIG. 1;

FIG. 3 is a cross-sectional view of a portion of the in-borehole sonde shown in FIG. 1;

FIG. 4 is a cross-sectional view of the in-borehole inspection apparatus of FIG. 1 with the rollers in sliding engagement with the interbay carriage;

FIG. 5 is an exploded view of the interbay carriage of the in-borehole detection apparatus shown in FIG. 4;

FIG. 6 is a schematic illustration of the assembly relationship of the slide and the roller of the in-borehole inspection apparatus shown in FIG. 4;

FIG. 7 is an exploded view of the support swing arm of the in-borehole detection apparatus of FIG. 1 coupled to the interbay carriage in a first manner;

FIG. 8 is an exploded view of a part of the structure of the in-borehole detection apparatus shown in FIG. 4, mainly showing the structure of the hollowed-out space and the like;

FIG. 9 is a schematic view of the structure of the intra-borehole inspection apparatus shown in FIG. 1 with two sets of rollers disposed on the interbay carriage;

FIG. 10 is an exploded view of a portion of the structure of the in-borehole inspection apparatus shown in FIG. 1 with the support swing arm coupled to the interbay carriage in a second manner;

FIG. 11 is a cross-sectional view of a portion of the in-borehole probe apparatus shown in FIG. 1, primarily showing parameter information such as lateral limit distance;

fig. 12 is a cross-sectional view of a part of the in-borehole probe apparatus shown in fig. 1, mainly showing the structure of a card slot interface and the like.

Reference numerals in the drawings illustrate:

100. a detection device;

110. a probe; 111. a camera; 112. a light source;

120. a battery;

130. a housing; 130a, a receiving cavity; 130b, perforating; 130c, internal threads; 131. a first pod; 132. a second pod; 133. a third pod; 134. a bilge support; 134a, a chute; 134b, a slider; 134c, hollowed-out space; 134d, supporting a swing arm; 134e, torsion springs; 134f, waist-shaped grooves; 134g, a limiting part; 134h, an elastic metal sheet; 134i, support springs;

140. a roller;

150. a circuit board;

160. a grating encoder; 161. a code wheel; 162. a photoelectric sensor; 163. a processor; 164. a PCB board;

170. a clamping groove interface;

180. a data transmission interface;

a1, a first straight line direction; a2, a second straight line direction; A. a lateral limit distance; B. the diameter of the roller; C. the width of the roller; D. the width of the housing;

200. rock drilling rig; 210. and (3) drilling rod.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "inner", "outer", "middle", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 12, an in-borehole detection apparatus 100 of some embodiments of the present application includes: probe 110, battery 120, housing 130, and scroll wheel 140.

In the present embodiment, in order for the sonde 100 to be pushed into the borehole by the drive of an external device, typically a rock drilling rig 200, the housing 130 is formed with a mounting interface for coupling the sonde 100 to one drill rod 210. I.e. the detection device 100 can be connected to the drill rod 210 of the rock drilling rig 200 via a mounting interface so as to be pushed into the borehole under the drive of the drill rod 210.

Considering that the end of the drill rod 210 of the rock drilling rig 200 is generally provided with external threads for connecting a drill bit, the mounting interface may be configured as an opening 130b provided at the rear end of the casing 130 in the extended length direction, and internal threads 130c are provided in the opening 130b to screw-couple the entire sonde 100 to one end of the drill rod 210.

The mounting interface may also be configured to be secured to external devices, such as the rock drilling rig 200, capable of driving the sonde 100 to move within the borehole using a bayonet connection, riveting, welding, interference fit, etc., to drive the sonde 100 through these external devices. The internal thread 130c illustrated in the present utility model should be regarded as an example of a manner in which the housing 130 is connected to an external device, and should not be regarded as that the housing 130 can be detachably fixedly connected to the external device only through the internal thread 130 c.

Correspondingly, the rock drilling rig 200 should be regarded as an illustration of an external device driving the detection device 100 in the borehole, and not as if the detection device 100 could only cooperate with the rock drilling rig 200 to perform the detection work.

The probe 110 is located at one end of the in-borehole probe apparatus 100 along the first linear direction a1 for detecting the interior of the borehole to collect in-borehole information while the probe apparatus 100 is in the borehole. For example, the probe 110 may include a camera 111 fixedly disposed at one end of the probe apparatus 100 along the first linear direction a1, so as to use the camera 111 to capture images of cracks of the borehole wall. At this time, a light source 112 should be disposed at an end of the probe 110 near the camera 111 along the first linear direction a1 to illuminate the inside of the borehole by the light source 112, and assist the camera 111 in capturing images.

In this embodiment, the length direction of the probe apparatus 100 is parallel to the first linear direction a1, that is, the probe head 110 is disposed at the front end of the probe apparatus 100, so that the probe head 110 collects information inside the borehole at one end of the probe apparatus 100 when the probe apparatus 100 moves inside the borehole.

The battery 120 is electrically connected to the probe 110 to provide the required power for the normal operation of the probe 110. The case 130 is formed with a receiving chamber 130a receiving the battery 120. That is, the battery 120 is disposed within the housing 130, and the battery 120 is protected by the housing 130 such that the battery 120 enters the borehole with the probing apparatus 100 to continuously power the probing tip 110 without having to pull a power cord from outside the borehole to power the probing tip 110.

To obtain information about the depth of the sonde 100 within the borehole, a roller 140 is provided on the housing 130. The roller 140 is rotatable about a rotational axis relative to the housing 130. When the detection device 100 moves in the borehole, the roller 140 contacts the borehole wall to roll in the borehole, and the depth position of the detection device 100 in the borehole can be obtained through calculation processing by measuring the rolling distance of the roller 140. The geological information combining the image and the hole depth can be obtained through the scheme, so that a user can conveniently take the geological information and then use the obtained geological information for guiding subsequent construction operations such as blasting, exploration and the like.

The roller 140 is movably connected to the housing 130 such that the roller 140 has a first limit position and a second limit position relative to the housing 130, i.e. the roller 140 is capable of moving relative to the housing 130 due to contact with protrusions, stones, grooves, etc. at the borehole wall, such that the roller 140 is capable of overcoming these obstacles and maintaining contact with the borehole wall, and such that the roller 140 is capable of maintaining a synchronous rolling state when the detection apparatus 100 moves in the borehole.

As a specific implementation of the housing 130 mounting the roller 140 and the probe 110, the in-borehole probing apparatus 100 further includes: the circuit board 150, the circuit board 150 and the probe 110 and/or the battery 120 are electrically connected. Correspondingly, the housing 130 comprises: a first hull 131, a second hull 132, a third hull 133, and an inter-hull support 134.

The first case 131 is for accommodating the battery 120, that is, the accommodating chamber 130a is provided at the first case 131. The second pod 132 is configured to house a circuit board 150 and the third pod 133 is configured to house at least a portion of the probing tip 110 such that in-bore information collected by the probing tip 110 can be transferred to the circuit board 150. An inter-pod bracket 134 is disposed between the second pod 132 and the third pod 133. That is, the roller 140 is disposed between the circuit board 150 and the probe 110 so that the roller 140 is as close to the probe 110 as possible, which enables the roller 140 to roll a distance that matches the depth of the borehole at which the probe 110 is positioned to collect borehole information.

As a particularly possible embodiment for acquiring positional information of the detection apparatus 100 using the roller 140, the in-borehole detection apparatus 100 further includes: a raster encoder 160. The grating encoder 160 includes a code wheel 161 that can be coupled to the roller 140 and a photosensor 162 that detects rotation of the code wheel 161. The photosensor 162 is electrically connected to the battery 120. The roller 140 drives the coding disc 161 to rotate when rolling, so that the angle through which the coding disc 161 rotates is obtained by utilizing the photoelectric sensor 162, and the distance of the roller 140 correspondingly rolling at the hole wall when the coding disc 161 rotates is obtained by calculation, so that the position information of the detection equipment 100 in the drill hole can be obtained.

The grating encoder 160 further includes a processor 163 electrically connected to the photoelectric sensor 162, and when the roller 140 rolls, the battery 120 is used to supply power to the grating encoder 160, so that the photoelectric sensor 162 collects the angle rotated by the encoder, and sends an electrical signal to the processor 163, and the processor 163 calculates the rolling distance of the roller 140 according to the electrical signal, so as to obtain the position information. With the above scheme, the acquisition of the position information of the detecting device 100 using the roller 140 can be realized.

The grating encoder 160 measures the distance the scroll wheel 140 rolls using a grating ranging technique. The present application does not constitute a substantial improvement to the principles of grating ranging techniques, which are not described in detail herein. However, when the grating encoder 160 works, the external light environment interferes with the accuracy of ranging, so that the photoelectric sensor 162 is disposed inside the housing 130 to reduce the interference of the external light and the like on the ranging result.

In the present embodiment, the diameter of the limiting roller 140 has a value ranging from 30mm to 50mm.

As a specific embodiment of the movable connection between the roller 140 and the bilge support 134, referring to fig. 4 to 6, a chute 134a is provided on the bilge support 134, and a slider 134b is slidably provided in the chute 134a of the bilge support 134. The roller 140 is rotatably coupled to the slide 134b and the roller 140 extends at least partially out of the slide slot 134a to enable the roller 140 to contact the borehole wall. The code wheel 161 is rotatably disposed within the slider 134b and is coupled to the roller 140 by a belt or other transmission. The photoelectric sensor 162 is fixedly disposed inside the slider 134b and electrically connected to the circuit board 150 and the battery 120. The processor 163 may be disposed inside the slider 134b and soldered to a PCB 164 in conjunction with the photosensor 162. The processor 163 may also be soldered to the circuit board 150. A plurality of supporting springs 134i are arranged between the sliding block 134b and the groove wall of the sliding groove 134a, so that elastic force is provided to the sliding block 134b through the supporting springs 134i, and the roller 140 keeps contact with the wall of the drilling hole to roll during the movement of the detecting device 100 in the drilling hole. At this time, it is possible to realize knowledge of the position information of the probe apparatus 100 during the rolling of the wheel 140.

As another specific embodiment of the movable connection of the roller 140 and the inter-pod 134, referring to fig. 7 and 8, the inter-pod 134 is disposed between the second pod 132 and the third pod 133 to form a hollowed-out space 134c between the second pod 132 and the third pod 133 for accommodating the roller 140. The arrangement of the hollowed-out space 134c enables broken stone and other impurities in the drilled holes to pass through, so that the accumulation of the impurities at the position of the inter-cabin support 134 is reduced, the possibility that the roller 140 is blocked by the impurities is reduced, and the roller 140 is further moved smoothly.

On the basis of this, the detection device 100 further comprises: the swing arm 134d and the elastic member are supported. Wherein, both ends of the supporting swing arm 134d are respectively connected with the roller 140 and the cabin bracket 134 in a rotating way. An elastic member is provided between the support swing arm 134d and the bilge bracket 134 to bias the support swing arm 134d to move to a preset position with respect to the bilge bracket 134. The support swing arm 134d is at least partially accommodated in the hollowed-out space 134c. The elastic member may be configured as a torsion spring 134e disposed between the support swing arm 134d and the bilge bracket 134. That is, the roller 140 contacts the borehole wall and swings, and the torsion spring 134e applies an elastic force thereto so that it has a tendency to swing to the first limit position with respect to the inter-bay carriage 134. Specifically, when the roller 140 is in the first extreme position, it is at least partially positioned outside of the extension bilge bracket 134 such that the roller 140 contacts the borehole wall. In this way, the roller 140 is maintained in contact with the borehole wall.

Correspondingly, the code wheel 161 is rotatably disposed inside the compartment bracket 134 and is linked with the roller 140 by a belt transmission or other transmission method, and the rotation center of the code wheel 161 coincides with the rotation center of the support swing arm 134d relative to the compartment bracket 134. The photoelectric sensor 162 is fixedly disposed inside the compartment bracket 134 and electrically connected to the circuit board 150 and the battery 120.

Referring to fig. 9, two sets of rollers 140 may be disposed on the inter-bay support 134, wherein one set of rollers 140 is coupled to the encoder disk 161, the other set of rollers 140 is not coupled to the encoder, and the two sets of rollers 140 are respectively disposed on two sides of the inter-bay support 134, so that the movement of the detection apparatus 100 is smoother.

Referring to fig. 10, when the bilge bracket 134 is formed with a hollowed space 134c, the following specific embodiment may be adopted to implement the installation of the roller 140 using the support swing arm 134 d: a guide structure is provided on a side wall of the hollowed-out space 134c formed in the inter-cabin support 134. Meanwhile, a support swing arm 134d is movably provided at the inter-bay support 134, and a roller 140 is rotatably connected to the support swing arm 134d. A limit structure matched with the guide structure is arranged on the supporting swing arm 134d. For example, the guide structure is configured as a waist-shaped groove 134f formed in the inter-cabin bracket 134, and the stopper structure is configured as a stopper 134g formed on the surface of the support swing arm 134d, the stopper 134g being embedded in the waist-shaped groove 134f and slidable in the waist-shaped groove 134 f. Thus, the support swing arm 134d and the roller 140 can swing relative to the bilge bracket 134. The elastic member is configured to be fixedly provided to the elastic metal piece 134h of the inter-bay carriage 134, and one end of the elastic metal piece 134h contacts the stopper 134g. The elastic metal sheet 134h provides an elastic force to the supporting swing arm 134d, so that the supporting swing arm 134d is biased to have a tendency to drive the roller 140 to move towards the outside of the hollowed-out space 134c, so that the roller 140 keeps contact with the wall of the borehole in the borehole.

On the basis, the roller 140 is connected to the coding disc 161 positioned in the compartment bracket 134 in a belt transmission mode and the like, so that the coding disc 161 is driven to rotate, and the grating encoder 160 is used for collecting position information. The elastic metal sheet 134h may be disposed inside the inter-bay support 134, so as to prevent impurities such as broken stone in the drilled hole from colliding with the elastic metal sheet 134h to cause deformation failure thereof.

With the several embodiments described above, the use of the roller 140 to obtain positional information of the sonde 100 within the borehole is achieved.

To ensure that the rolling distance of the roller 140 can represent the depth position of the detection device 100 in the borehole, a component of the distance between the axes of rotation of the roller 140 in a second straight direction a2 perpendicular to the first straight direction a1 when the roller 140 is defined as a first limit position and a second limit position is defined as a lateral limit distance a of the roller 140, and the diameter of the roller 140 is equal to or larger than the lateral limit distance a of the roller 140. I.e., the diameter of the roller 140 is not less than the movable distance of the roller 140 in the width direction of the sonde 100 so that the roller 140 can remain in contact with the borehole wall as the sonde 100 moves within the borehole. By adopting the scheme, the rolling distance of the roller 140 is matched with the depth position of the detection equipment 100 in the drill hole, so that the accuracy of geological information is ensured.

Specifically, the ratio of the diameter of the roller 140 to the lateral limit distance a of the roller 140 may be defined to be in a range of 1.0 to 4.0, for example, the ratio of the diameter of the roller 140 to the lateral limit distance a of the roller 140 may be 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, etc. In actual manufacturing, for example, the diameter of the roller 140 is set to be 42mm, and the lateral limit distance a of the roller 140 may be approximately 10.5mm to 42mm.

The parameters of the roller 140 themselves also have an influence on the smooth movement of the roller 140, and if the roller 140 is too wide and the diameter is too small, or the roller 140 is too narrow and the diameter is too large, the roller 140 is easily affected by broken stones on the hole wall to move unstably, or is easily damaged by collision. Thus, in the present embodiment, the ratio of the diameter of the roller 140 to the width of the roller 140 can be defined to be in the range of 1.2 to 3.3. For example, when the diameter of the roller 140 is set to 42mm, the width or thickness thereof is approximately 13mm to 35mm.

To smooth the movement of the roller 140, it may be defined that the outer edge of the roller 140 is located at the same side of the housing 130 when the roller 140 is at the first and second limit positions, that is, the roller 140 does not move from one side to the other side in the width direction of the housing 130, and the lateral limit distance a when the roller 140 moves is defined from another angle.

The dimensional parameters of the roller 140 may be further matched to the parameters of the housing 130. If the width of the housing 130 is greater than or equal to the width of the roller 140, the housing 130 itself has sufficient strength to support the mounting roller 140. Specifically, the ratio of the width of the housing 130 to the width of the roller 140 ranges from 2.0 to 5.4. For example, when the housing 130 has a width of 64mm, the width of the roller 140 may be approximately 12mm to 32mm.

In this embodiment, the distance measurement of the roller 140 is implemented by the circuit related to the battery 120 and the corresponding power components, and in order to facilitate the arrangement of the circuit between the battery 120 and the probe 110, and between the battery 120 and the probe 110, the roller 140 is disposed.

In this embodiment, the roller 140 is disposed between the probe 110 and the mounting interface, i.e., the external device pushes the housing 130 into the borehole so that the roller 140 also enters the borehole and is positioned so as not to interfere with the proper operation of the probe 110.

In this embodiment, referring to fig. 12, a card slot interface 170 for accommodating a storage medium, such as an SD card, a TF card, etc., may be provided on the housing 130, and may be inserted into the card slot interface 170 and electrically connected to the circuit board 150 through the card slot interface 170, so that the storage medium is used to store position information and in-hole information collected by the probe 110, so that the storage medium is removed to retrieve the information. The data transmission interface 180 may also be disposed on the housing 130, where the data transmission interface 180 is electrically connected to the storage medium and the circuit board 150, so that the probe device 100 is electrically connected to the terminal device capable of retrieving the information and the position information in the hole through the data signal line corresponding to the data transmission interface 180 without removing the storage medium. For example, when the probe 110 selects the camera 111 for capturing image information, the data transmission interface 180 may be an HDMI interface, a type-c interface, or the like, through which the storage medium in the card slot interface 170 is electrically connected to an external display, and the image information and the position information are retrieved by the display. The card slot interface 170 and the data transmission interface 180 are preferably fixedly disposed on the second pod 132.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the utility model in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the utility model. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. An in-borehole sonde comprising:

a probe for detecting the interior of the borehole;

wherein the probe is positioned at one end of the detection equipment in the borehole along the first linear direction; the length direction of the in-borehole detection equipment is parallel to the first linear direction;

the method is characterized in that:

the in-borehole detection apparatus further comprises:

a battery electrically connected to the probe;

a case formed with an accommodating chamber accommodating the battery;

the roller is movably connected to the shell so that the roller has a first limit position and a second limit position relative to the shell;

wherein a component of a distance between rotational axes of the rollers in a second linear direction perpendicular to the first linear direction when the rollers are at the first limit position and the second limit position is defined as a lateral limit distance of the rollers; the diameter of the roller is larger than or equal to the transverse limit distance of the roller.

2. The in-borehole detection apparatus of claim 1, wherein:

the ratio of the diameter of the roller to the transverse limit distance of the roller is in the range of 1.0 to 4.0.

3. The in-borehole detection apparatus of claim 1, wherein:

the ratio of the diameter of the roller to the width of the roller ranges from 1.2 to 3.3.

4. The in-borehole detection apparatus of claim 1, wherein:

the outer edges of the rollers are positioned on the same side of the shell when the rollers are positioned at the first limit position and the second limit position.

5. The in-borehole detection apparatus of claim 1, wherein:

the width of the shell is larger than or equal to the width of the roller.

6. The in-borehole detection apparatus of claim 5, wherein:

the ratio of the width of the shell to the width of the roller is 2.0 to 5.4.

7. An in-borehole detection apparatus according to any one of claims 1 to 6, wherein:

the roller is arranged between the probe and the battery.

8. An in-borehole detection apparatus according to any one of claims 1 to 6, wherein:

the housing is formed with a mounting interface for coupling the in-borehole detection device to a drill pipe; the roller is disposed between the probe head and the mounting interface.

9. The in-borehole detection apparatus of claim 8, wherein:

the in-borehole detection apparatus further comprises:

the circuit board is electrically connected with the probe or/and the battery;

the housing comprises:

a first case for accommodating the battery;

a second housing for accommodating the circuit board;

a third pod for receiving at least a portion of the probe;

and the cabin bracket is arranged between the second cabin shell and the third cabin shell so as to form a hollowed-out space for accommodating the roller.

10. The in-borehole detection apparatus of claim 9, wherein:

the in-borehole detection apparatus further comprises:

the two ends of the supporting swing arm are respectively in rotary connection with the idler wheels and the cabin bracket;

the elastic component is arranged on the support swing arm and the bilge bracket to bias the support swing arm to move to a preset position relative to the bilge bracket;

wherein, support the swing arm at least part and hold in the fretwork space.

11. An in-borehole detection apparatus according to any one of claims 1 to 6, wherein:

the in-borehole detection apparatus further comprises:

the grating encoder comprises a coding disc capable of being linked with the roller and a photoelectric sensor for detecting the rotation of the coding disc;

the photoelectric sensor is electrically connected to the battery; the diameter of the roller is 30mm to 50mm.