Portable coal mine tunnel area deformation monitoring device

Abstract

The utility model discloses a portable coal mine tunnel area deformation monitoring device. Comprising a scanning distance measurement unit; the quick-release base is arranged at the bottom of the scanning distance measuring unit, and the bottom of the quick-release base is provided with slots which are circumferentially arrayed around the central axis of the quick-release base; the convenient bracket is arranged below the quick release base; the rapid support comprises a fixed base and folding supporting legs arranged below the fixed base. Wherein the top of the fixed base is provided with inserting rods which are arranged in a circumferential array around the center axis of the fixed base, and the inserting rods are used for being inserted into the inserting grooves, so that quick disassembly and assembly between the quick disassembly base and the fixed base are achieved; according to the utility model, through the detachable quick-release base and the fixed base and the cooperation of the folding support legs which can be unfolded into a tripod, when the use place of the monitoring device is changed, the scanning distance measurement unit at the top and the convenient support at the bottom are directly detached for use; furthermore, the monitoring points can be quickly replaced, and the stability of the monitoring process can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunnel surrounding rock deformation control, in particular to a portable coal mine tunnel regional deformation monitoring device. Background Art

[0002] With the increasing depth of coal mining, deformation monitoring of mine tunnels has become increasingly important. However, due to the combined influence of multiple factors during the mining process, including geological structure, rock formation stress, mining techniques, and hydrological conditions, mine tunnels are prone to deformation, which can even lead to serious safety accidents such as tunnel collapse. Therefore, ensuring tunnel stability and accurately and promptly monitoring its deformation are key to ensuring miner safety and efficient coal mine production.

[0003] However, traditional methods of tunnel deformation monitoring, such as manual measurement or fixed monitoring instruments, have many inconveniences. Among them, manual measurement has a low measurement frequency and cannot always maintain stability during measurement. Fixed monitoring instruments are difficult to meet the comprehensive monitoring needs in the complex environment of modern coal mine underground tunnels due to limitations such as low replacement efficiency and delayed data collection.

[0004] To meet these challenges, there is an urgent need for a portable coal mine tunnel regional deformation monitoring device to achieve rapid, accurate and regional monitoring of tunnel deformation, thereby reducing the risk of coal mine production accidents and ensuring the safety and efficient production of mines. Summary of the Invention

[0005] In response to the above technical problems, the utility model provides a portable coal mine tunnel area deformation monitoring device, which improves the convenience of using the monitoring device by arranging a scanning and ranging unit for monitoring and a convenient bracket for support in a detachable connection form.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical means:

[0007] A portable coal mine tunnel area deformation monitoring device; comprising:

[0008] Scanning ranging unit;

[0009] A quick-release base is provided at the bottom of the scanning and ranging unit, and has a slot array arranged in a circle around its central axis at the bottom;

[0010] A convenient bracket is provided below the quick-release base; wherein the quick bracket includes:

[0011] A fixed base and folding legs arranged below the fixed base;

[0012] The top of the fixed base is provided with a circular array of insertion rods around its central axis, which are used to be inserted into the slots to achieve rapid disassembly and assembly between the quick-release base and the fixed base.

[0013] The scanning and ranging unit is rotatably connected to the quick-release base via a rotating device, thereby achieving relative circular rotation between the scanning and ranging unit and the quick-release base.

[0014] The scanning and ranging unit is provided with a communication device to realize real-time transmission of data.

[0015] A spirit level is provided inside the quick-release base for leveling the scanning and ranging unit.

[0016] The folding legs are arranged in a plurality of circular arrays around the central axis of the fixed base;

[0017] The plurality of folding legs are unfolded to support the fixed base.

[0018] A leg extension device is provided at the end of the folding leg, which is used to adjust the length of the folding leg.

[0019] The leg extension device comprises:

[0020] A fixed sleeve is slidably mounted on the outside of the supporting slide rod, and a plurality of first slots are arranged in an array on its outer wall along its central axis;

[0021] The support slide bar has a first limiting hole on its outer wall surface; the limiting hole is provided with a first buckle and a first spring in sequence from the outside to the inside; the bottom of the first buckle abuts against the first spring;

[0022] The first clip can slide along the central axis of the first limiting hole to pass through the first clip slot;

[0023] Wherein, a first pull rod passing through the first spring is provided on the side wall of the first buckle; one end of the first pull rod passes through the side wall of the supporting sliding rod.

[0024] The end of the support slide is provided with a support member replacement device, which includes:

[0025] A socket is provided in the supporting slide rod along the central axis of the supporting rod;

[0026] The support member includes a positioning portion and a supporting portion; the shape of the positioning portion matches the shape of the insertion hole;

[0027] The positioning portion and the insertion hole are detachably connected via a spring buckle assembly.

[0028] The positioning portion includes:

[0029] A second card slot is symmetrically arranged on the inner wall of the insertion hole;

[0030] A second clip is slidably disposed in a second limiting hole on the positioning portion; the bottom wall of the limiting hole is connected to the bottom of the second clip via a second spring; wherein a second pull rod is provided on the side wall of the second clip and passes through the second spring; one end of the second pull rod passes through the side wall of the support member;

[0031] The second clip can slide along the central axis direction of the second limiting hole to pass through the second clip slot.

[0032] The support portion adopts support foot nails or support suction cups.

[0033] Beneficial effects:

[0034] First, the monitoring device described in the present invention has a detachable quick-release base and a fixed base, and cooperates with folding legs that can be unfolded into a tripod. When the monitoring device is changed to a new location, the top scanning and ranging unit and the bottom convenient bracket can be directly disassembled and used, which is convenient for subsequent transportation. Furthermore, compared with the original fixed or handheld monitoring device, the present application can quickly change the monitoring point and maintain the stability of the monitoring process.

[0035] Second, the convenient bracket described in the present invention can use a spring clip assembly to replace the support at the end of the convenient bracket with an adaptive support member when facing different tunnel environments. When facing loose ground, needle-shaped support foot nails are used, and when facing smooth ground, suction cup-type support suction cups are used. In this way, compared with the existing technology of fixed support method, the present application can effectively improve the support stability of the convenient bracket.

[0036] Third, the folding legs described in the present invention, through the leg extension device provided at the end thereof, can make the multi-leg bracket with the folding legs unfolded adapt to the complex coal mine tunnel ground, and can also maintain the level of the scanning and ranging unit when facing the rugged coal mine tunnel ground; therefore, it plays a role in improving the convenience of use of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of the monitoring device of the utility model;

[0038] Figure 2 This is a schematic structural diagram of the scanning distance measuring unit of the utility model;

[0039] Figure 3 This is a schematic diagram of the structure of the quick-detachable base and portable bracket of the utility model;

[0040] Figure 4This is a structural diagram of the support member replacement device of the utility model;

[0041] Figure 5 This is a structural cross-sectional view of the support member replacement device of the utility model;

[0042] Figure 6 This is a cross-sectional view of the structure of the support foot nail of the utility model;

[0043] Figure 7 This is a cross-sectional view of the structure of the support suction cup of the utility model;

[0044] Figure 8 This is a schematic diagram of the use of the monitoring device of the utility model.

[0045] In the figure: 1. Scanning and ranging unit; 101. Laser ranging device; 102. Panoramic imaging device; 2. Quick-release base; 3. Portable bracket; 301. Fixed base; 302. Folding legs; 4. Rotating device; 5. Leg extension device; 6. Support member replacement device; 610. Socket; 620. Support member; 621. Support foot nail; 622. Support suction cup; 631. Second slot; 632. Second limiting hole; 633. Second buckle; 634. Second spring; 7. Coal mine tunnel. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] Reference Figure 1-8 A portable coal mine tunnel area deformation monitoring device includes: a scanning and ranging unit; a quick-release base, which is arranged at the bottom of the scanning and ranging unit, and the bottom of which is provided with a slot array around its own central axis; a convenient bracket, which is arranged below the quick-release base; wherein the quick bracket includes: a fixed base and folding legs arranged below the fixed base; wherein, the top of the fixed base is provided with an insertion rod array around its own central axis, which is used to insert into the slot to realize rapid disassembly and assembly between the quick-release base and the fixed base.

[0048] Specifically, the quick-release base is detachably connected to the fixed base, so that the scanning and ranging unit can be quickly disassembled and assembled.

[0049] Specifically, the scanning and ranging unit includes a laser ranging device and a panoramic imaging device. The laser ranging device is a hemispherical transparent structure located on top of the gimbal, capable of vertically scanning tunnel sections and used for measuring tunnel section dimensions. The panoramic imaging device, located on both sides of the rotating device, is a panoramic infrared camera used for panoramic imaging of tunnel sections. The panoramic imaging device can be linked with the laser ranging device. For each tunnel section scan dimension obtained, an image of the tunnel is captured at that location and the dimensions are annotated. The laser ranging device is a hemispherical, rotatable laser ranging device that can automatically control 180° rotation scanning and distance and angle recording.

[0050] In order to enable the device to rotate horizontally and expand the scanning and ranging range, the scanning and ranging unit is rotatably connected to the quick-release base through a rotating device to achieve relative circular rotation between the scanning and ranging unit and the quick-release base.

[0051] Furthermore, in order to facilitate timely data transmission and improve the information level of the device, a communication device is provided in the scanning and ranging unit to realize real-time data transmission.

[0052] Furthermore, in order to facilitate the installation of the scanning and ranging unit, the portable bracket includes a fixed base, folding legs and a leg extension device. The fixed base is used for quick detachment of the pan-tilt head. The folding legs can be unfolded to form a tripod for supporting the scanning and ranging unit. The leg extension device is located at the end of the folding legs and is used to extend the folding legs to change the height of the pan-tilt head.

[0053] Specifically, multiple folding legs are arranged in a circular array around the central axis of the fixed base; the multiple folding legs are unfolded to support the fixed base. At the same time, a spirit level is installed inside the quick-release base to achieve leveling of the scanning and ranging unit.

[0054] At the same time, in order to facilitate the extension of the legs and make them flexible and adjustable, the leg extension device is configured to include an internally locked multi-section telescopic rod device; the device includes a fixed sleeve that is slidably mounted on the outside of the support slide, and the outer wall of the fixed sleeve is provided with a plurality of first slots arranged in an array along the central axis of the fixed sleeve; the outer wall surface of the support slide is provided with a first limiting hole; the limiting hole is provided with a first clip and a first spring in sequence from the outside to the inside; the bottom of the first clip abuts against the first spring; the first clip can slide along the central axis of the first limiting hole, allowing itself to pass through the first slot; wherein, the side wall of the first clip is provided with a first pull rod that passes through the first spring; one end of the first pull rod passes through the side wall of the support slide. wherein, the first slots are arranged every 2 cm along the central axis of the support slide; when the desired length is reached, the internal spring clip pops out, fixing the length of the entire telescopic leg.

[0055] In order to adapt to different tunnel ground environments, a support part replacement device is provided at the end of the support slide rod, which includes: a socket, which is opened in the support slide rod along the central axis direction of the support rod; a support part, including a positioning part and a supporting part; the shape of the positioning part matches the shape of the socket; the positioning part and the socket are detachably connected through a spring snap assembly.

[0056] The spring clip assembly includes: a second slot, symmetrically disposed on the inner wall of the insertion hole; a second clip, slidably disposed within a second limiting hole on the positioning portion; the bottom wall of the limiting hole connected to the bottom of the second clip via a second spring; the second clip capable of sliding along the central axis of the second limiting hole to pass through the second slot; a second pull rod, passing through the second spring, is disposed on the side wall of the second clip; one end of the second pull rod passes through the side wall of the support member. Specifically, the support portion can be a support spike or a support suction cup.

[0057] Working principle:

[0058] First, the user unfolds the folding legs to form a tripod to support the scanning and ranging unit; the user aligns the quick-release base of the scanning and ranging unit with the fixed base for quick installation;

[0059] At this time, the leg extension device is used to adjust the level of the ground in the tunnel, and the level of the scanning distance measuring unit is ensured by using a spirit level. When adjustment is required, the support slide bar is slid in the fixed sleeve. When it slides to a suitable length, the first buckle is released, and the first spring is engaged in the first slot under the action of elastic force, thereby completing the fixation.

[0060] Furthermore, different support methods can be selected with the help of the support replacement device according to different tunnel environments. For loose sand, support foot spikes are used; for smooth ground, support suction cups are used. Specifically, when replacement is required, the second buckle is pressed to retract it into the second limiting hole, and the support is pulled out. After selecting a suitable support, the second buckle is loosened, and the second buckle is snapped into the second slot under the action of the second spring, completing the fixing of the support.

[0061] Finally, after fixing the scanning and ranging unit, the laser ranging device and the panoramic imaging device are combined to obtain each tunnel section scanning size, that is, to take a tunnel image at that position and mark the size; and the laser ranging device rotates within an angle range of 180° to scan and record the distance and angle.

Claims

1. A portable coal mine tunnel area deformation monitoring device; characterized in that, include: Scanning ranging unit; A quick-release base is provided at the bottom of the scanning and ranging unit, and has a slot array arranged in a circle around its central axis at the bottom; A convenient bracket is provided below the quick-release base; wherein the quick bracket includes: A fixed base and folding legs arranged below the fixed base; The top of the fixed base is provided with a circular array of insertion rods around its central axis, which are used to be inserted into the slots to achieve rapid disassembly and assembly between the quick-release base and the fixed base.

2. The portable coal mine tunnel deformation monitoring device according to claim 1, characterized in that: The scanning and ranging unit is rotatably connected to the quick-release base via a rotating device, thereby achieving relative circular rotation between the scanning and ranging unit and the quick-release base.

3. The portable coal mine tunnel deformation monitoring device according to claim 1, characterized in that: The scanning and ranging unit is provided with a communication device to realize real-time transmission of data.

4. The portable coal mine tunnel deformation monitoring device according to claim 1, characterized in that: A spirit level is provided inside the quick-release base for leveling the scanning and ranging unit.

5. The portable coal mine tunnel deformation monitoring device according to claim 1, characterized in that: The folding legs are arranged in a plurality of circular arrays around the central axis of the fixed base; The plurality of folding legs are unfolded to support the fixed base.

6. The portable coal mine tunnel deformation monitoring device according to claim 1, characterized in that: A leg extension device is provided at the end of the folding leg, which is used to adjust the length of the folding leg.

7. The portable coal mine tunnel deformation monitoring device according to claim 6, characterized in that: The leg extension device comprises: The support slide bar has a first limiting hole on its outer wall surface; the limiting hole is provided with a first buckle and a first spring in sequence from the outside to the inside; the bottom of the first buckle abuts against the first spring; A fixed sleeve is slidably mounted on the outside of the supporting slide rod, and a plurality of first slots are arranged in an array on its outer wall along its central axis; The first clip can slide along the central axis of the first limiting hole to pass through the first clip slot; Wherein, a first pull rod passing through the first spring is provided on the side wall of the first buckle; one end of the first pull rod passes through the side wall of the supporting sliding rod.

8. The portable coal mine tunnel deformation monitoring device according to claim 7, characterized in that: The end of the support slide is provided with a support member replacement device, which includes: A socket is provided in the supporting slide rod along the central axis of the supporting rod; The support member includes a positioning portion and a supporting portion; the shape of the positioning portion matches the shape of the insertion hole; The positioning portion and the insertion hole are detachably connected via a spring buckle assembly.

9. The portable coal mine tunnel deformation monitoring device according to claim 8, characterized in that: The positioning portion includes: A second card slot is symmetrically arranged on the inner wall of the insertion hole; A second clip is slidably disposed in a second limiting hole on the positioning portion; the bottom wall of the limiting hole is connected to the bottom of the second clip via a second spring; wherein a second pull rod is provided on the side wall of the second clip and passes through the second spring; one end of the second pull rod passes through the side wall of the support member; The second clip can slide along the central axis direction of the second limiting hole to pass through the second clip slot.

10. The portable coal mine tunnel deformation monitoring device according to claim 8, characterized in that: The support portion adopts support foot nails or support suction cups.

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