A mine laser profile measuring instrument

Abstract

The utility model relates to cross section measurement technical field especially is related to a mine laser cross section measuring instrument. Including laser measurement main part, leveling assembly and support mechanism, laser measurement main part passes through leveling assembly and is installed in support mechanism top, the support mechanism includes intermediate part, the main rod of setting in intermediate part center position, a plurality of support leg assemblies are hinged on intermediate part, the support leg assembly surrounds the main rod and is evenly spaced, the main rod has the guide structure of axial extension, the guide structure is equipped with the limit structure, the main rod is equipped with the ring body assembly of slidable, the ring body assembly can along guide structure and realizes position locking through limit structure and is slid, and the reinforcing rod is hinged between every support leg assembly and ring body assembly. The problem that cross section measuring instrument is inconvenient to store, cannot adjust height is solved.

Description

Technical Field

[0001] This utility model relates to the field of cross-section measurement technology, and in particular to a laser cross-section measuring instrument for mining. Background Technology

[0002] As a key piece of equipment for detecting cross-sectional parameters in underground mine roadways, the existing technology for mine laser profile measuring instruments mostly adopts a fixed-length triangular support structure for the support mechanism. The horizontal calibration of the laser measuring body is achieved through the leveling component at the top of the main rod. However, this technology has the following drawbacks in practical applications:

[0003] First, the support stability is insufficient. Traditional outrigger components are mostly non-extendable or simply telescopic structures, relying on bolt tightening or pin positioning for locking, which is cumbersome and lacks reliable limiting after the outriggers are deployed. Second, traditional horizontal support rods are mostly fixed, occupying a large space and resulting in poor overall storage performance of the support mechanism. The outriggers and main rods cannot form a compact structure when retracted, and the ends of the outriggers are prone to collision and damage with other equipment. Patent announcement number CN217877660U discloses a precision laser measuring device for roadway cross-section measurement. In this device, an adjusting bracket is provided with a first leveling unit. In the first leveling unit, the fixed support and the leveling support are connected by multiple helical screws, and the upper surface of the leveling support is provided with multiple triangular connecting bolts. The laser rangefinder is rotatably mounted on the lifting slider. This device has an unstable support structure, occupies a large space when folded, and is inconvenient to store, especially the leveling structure, which cannot be folded for storage.

[0004] Therefore, in view of the shortcomings of the existing support mechanism of the mining laser profile measuring instrument in terms of stability, ease of operation and storage performance, there is a need for a measuring instrument with an optimized support structure, a reliable locking mechanism and an efficient leveling component. Utility Model Content

[0005] To address the problems of inconvenient storage and inability to adjust the height of cross-section measuring instruments, this utility model provides a mining laser cross-section measuring instrument.

[0006] The utility model provides a mining laser profile measuring instrument, including a laser measuring body, a leveling component, and a support mechanism. The laser measuring body is mounted on top of the support mechanism via the leveling component. The support mechanism includes a central component, a main rod located at the center of the central component, and multiple support leg components hinged to the central component. The support leg components are evenly spaced around the main rod. The main rod has an axially extending guide structure with a limiting structure. A slidable ring component is fitted on the main rod. The ring component can slide along the guide structure and is locked in position by the limiting structure. A reinforcing rod is hinged between each support leg component and the ring component.

[0007] Furthermore, the guide structure is a guide groove arranged along the axial direction of the main rod, and a ratchet structure is distributed in the guide groove. The ratchet structure is the teeth of a ratchet, and adjacent teeth are arranged side by side along the axial direction of the main rod. One side of the teeth is an obtuse-angled inclined surface, and the other side is a vertical or acute-angled inclined surface.

[0008] Furthermore, the ring assembly includes an outer ring body and a snap-fit ​​member disposed on the outer ring body. The snap-fit ​​member is connected to the outer ring body through an elastic element. The end of the snap-fit ​​member can engage with the teeth of the ratchet. The outer ring body is provided with an operating part. Pressing the operating part can drive the snap-fit ​​member to compress the elastic element and disengage from the teeth.

[0009] Furthermore, the elastic element is a return spring, the end of the snap-fit ​​member away from the teeth is connected to the return spring, and the end of the return spring away from the snap-fit ​​member is fixedly connected to the inner wall of the outer ring.

[0010] Furthermore, the outrigger assembly is a telescopic outrigger assembly, which includes an inner rod, two outer rods symmetrically arranged on both sides of the inner rod, and rod seats provided at the upper ends of the two outer rods. The rod seats are hinged to the intermediate component. The inner rod and the two outer rods are jointly fitted with a locking structure, and the inner rod passes through the locking structure to lock the inner rod.

[0011] Furthermore, the locking structure includes a ring sleeve, which is fixedly mounted on the outer rod. The ring sleeve has a through hole in the middle for the inner rod to pass through freely. The outer wall of the inner rod forms a groove along the axial direction. A clamping element is inserted into the inner wall of the through hole corresponding to the position of the groove. A wrench is provided on the ring sleeve, and the wrench is connected to the ring sleeve through a rotating shaft. One end of the wrench connected to the rotating shaft is an eccentric cylindrical structure. When the wrench is close to the inner rod, the clamping element is clamped by the eccentric cylindrical structure, and the clamping element is embedded in the groove.

[0012] Furthermore, the upper end of the inner rod is provided with a limiting block, which is slidably connected to the two outer rods. The lower end of the inner rod is provided with a support seat, and the reinforcing rod is hinged between the ring and the outer ring body.

[0013] Furthermore, the leveling assembly includes multiple horizontal support rods and a platform. One end of each horizontal support rod is hinged to the intermediate component, allowing it to be in an extended or retracted state relative to the main rod. When the horizontal support rod is in the retracted state, all the horizontal support rods together form a columnar structure.

[0014] Furthermore, the horizontal support rod is equipped with a height adjustment knob. When the horizontal support rod is in the extended state, the water platform is installed on the horizontal support rod. The levelness of the water platform can be adjusted by adjusting the height adjustment knob. The laser measurement body is equipped with a horizontal observation component.

[0015] Furthermore, the height adjustment knob is threadedly connected to the horizontal support rod, with the top of the knob abutting against the bottom of the platform. Rotating the knob can change the length of its extension from the horizontal support rod.

[0016] In summary, this utility model has the following beneficial technical effects:

[0017] 1. This utility model proposes a mine laser section measuring instrument that improves support stability. The guide groove and ratchet structure on the main rod, combined with the snap-fit ​​mechanism of the ring assembly, achieve precise positioning and reliable locking of the ring assembly along the axial direction of the main rod. This, along with the reinforcing rod hinged between the outrigger assembly and the ring assembly, forms a stable multi-directional support system. The outrigger assembly uses a locking structure to fix the inner and outer rods, allowing for height adjustment. The telescopic design of the outrigger assembly and the length adjustment function of the reinforcing rod enable the instrument to adapt to support requirements of different spans, and to quickly find stable support points even on uneven roadway surfaces.

[0018] 2. This utility model improves ease of operation and adaptability for single-person operation. The operating part of the ring assembly cooperates with the elastic element, allowing for easy unlocking and flexible position adjustment with just one-handed pressing, simplifying the adjustment process of the reinforcing rod support angle. The locking structure of the outrigger assembly adopts a wrench-driven eccentric clamping method, allowing for locking and unlocking of the inner rod with one-handed operation. At the same time, the design of the groove and clamping element reduces the impact of dust on the locking function, lowering the incidence of jamming failures.

[0019] 3. The horizontal support rod of the leveling component of this utility model adopts a hinged unfolding structure, which forms a columnar structure when folded, saving carrying space; after unfolding, the height of the platform can be precisely adjusted through the threaded transmission of the height adjustment knob. The telescopic design of the outrigger component and the hinged structure of the middle component allow the outrigger to be folded close to the main rod when the instrument is stored. Combined with the columnar folding shape of the horizontal support rod, the overall volume is significantly reduced, making it convenient for transportation and storage in narrow downhole spaces. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a mining laser cross-section measuring instrument according to an embodiment of the present invention.

[0021] Figure 2 This is another structural schematic diagram of a mining laser cross-section measuring instrument according to an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the leveling component according to an embodiment of the present invention.

[0023] Figure 4 This is an embodiment of the present utility model. Figure 3 A magnified view of part A in the image.

[0024] Figure 5 This is a schematic diagram of the limiting structure according to an embodiment of the present utility model.

[0025] Figure 6 This is a schematic diagram of the locking structure according to an embodiment of the present invention.

[0026] The components include: 1. Laser measurement main body; 2. Leveling assembly; 201. Horizontal support rod; 202. Water platform; 203. Height adjustment knob; 3. Support mechanism; 301. Intermediate component; 302. Main rod; 4. Guide structure; 401. Guide groove; 402. Tooth; 5. Ring assembly; 501. Outer ring; 502. Limiting structure; 503. Snap-fit ​​component; 504. Elastic component; 505. Operating part; 6. Leg assembly; 601. Outer rod; 602. Inner rod; 603. Groove; 604. Limiting block; 605. Rod seat; 7. Locking structure; 701. Ring sleeve; 702. Clamping component; 703. Wrench; 704. Rotating shaft; 8. Reinforcing rod; 9. Horizontal observation component. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Reference Figure 1 and Figure 2 This embodiment of a mining laser profile measuring instrument includes a laser measuring body 1, a leveling component 2, and a support mechanism 3. The laser measuring body 1 is mounted on top of the support mechanism 3 via the leveling component 2. The support mechanism 3 includes an intermediate component 301, a main rod 302 located at the center of the intermediate component 301, and multiple support leg components 6 hinged to the intermediate component 301. The support leg components 6 are evenly spaced around the main rod 302. The main rod 302 has an axially extending guide structure 4, and a limiting structure 502 is provided on the guide structure 4. A slidable ring component 5 is sleeved on the main rod 302. The ring component 5 can slide along the guide structure 4 and is locked in position by the limiting structure 502. A reinforcing rod 8 is hinged between each support leg component 6 and the ring component 5.

[0030] The laser measurement unit 1 adopts an integrated sealed structure, housing a laser emitter, an angle sensor, and a data processing unit. The laser emitter emits a visible laser beam of a specific wavelength, achieving full-range horizontal and vertical scanning via a high-speed rotating mirror. The angle sensor possesses high precision, recording the laser beam deflection angle in real time. The data processing unit fuses laser ranging data with angle information to generate cross-sectional contour graphics and calculate parameters such as width, height, and area. It also features large-capacity data storage and transmission capabilities compatible with mainstream wireless transmission protocols.

[0031] Reference Figure 5 The guide structure 4 is a guide groove 401 arranged along the axial direction of the main rod 302. A ratchet structure is distributed in the guide groove 401. The ratchet structure is the teeth 402 of the ratchet. Adjacent teeth 402 are arranged side by side along the axial direction of the main rod 302. One side of the teeth 402 is an obtuse angle inclined surface, and the other side is a vertical surface or an acute angle inclined surface.

[0032] Reference Figure 2 The ring assembly 5 includes an outer ring 501 and a snap-fit ​​member 503 disposed on the outer ring 501. The snap-fit ​​member 503 is connected to the outer ring 501 through an elastic member 504. The end of the snap-fit ​​member 503 can engage with the teeth 402 of the ratchet. The outer ring 501 is provided with an operating part 505. Pressing the operating part 505 can drive the snap-fit ​​member 503 to compress the elastic member 504 and disengage from the teeth 402.

[0033] Reference Figure 5 The elastic element 504 is a return spring. The end of the snap-fit ​​element 503 away from the tooth 402 is connected to the return spring, and the end of the return spring away from the snap-fit ​​element 503 is fixedly connected to the inner wall of the outer ring 501.

[0034] In the support mechanism 3, the intermediate component 301 adopts a cylindrical structure or other similar square column structure, and has a main rod 302 mounting hole at the center position, which is fixedly connected to the main rod 302. Multiple support leg component 6 hinge seats and horizontal support rod 201 hinge seats are evenly distributed around its circumference, and reinforcing ribs are provided inside to improve the overall strength.

[0035] Reference Figure 2 The outrigger assembly 6 is a telescopic outrigger assembly 6. The outrigger assembly 6 includes an inner rod 602. Two outer rods 601 are symmetrically arranged on both sides of the inner rod 602. The upper ends of the two outer rods 601 are provided with rod seats 605. The rod seats 605 are hinged to the intermediate component 301. The inner rod 602 and the two outer rods 601 are jointly fitted with a locking structure 7. The inner rod 602 passes through the locking structure 7, and the locking structure 7 is used to lock the inner rod 602.

[0036] Reference Figure 6 The locking structure 7 includes a ring 701, which is fixedly mounted on the outer rod 601. The ring 701 has a through hole in the middle for the inner rod 602 to pass through freely. The outer wall of the inner rod 602 forms a groove 603 along the axial direction. A clamping member 702 is inserted into the inner wall of the through hole at the position corresponding to the groove 603. The ring clamping member 702 is made of rubber and can slide radially along the ring 701. The wrench 703 is made of engineering plastic and is connected to the ring 701 through a rotating shaft 704. One end of the wrench 703 connected to the rotating shaft 704 has an eccentric cylindrical structure. When pressed, it pushes the clamping member 702 into the groove 603 of the inner rod 602 to achieve reliable locking.

[0037] The inner side of the ring assembly 5 is provided with a mounting groove for a snap-fit ​​member 503, and the end of the snap-fit ​​member 503 is wedge-shaped to match the ratchet teeth 402; the operating part 505 is a button that extends to the outside of the outer ring 501; the reset spring is a cylindrical helical spring with appropriate preload to ensure reliable contact between the snap-fit ​​member 503 and the teeth 402.

[0038] Reference Figure 2 The inner rod has a limiting block at its upper end, which is slidably connected to the two outer rods. The inner rod has a support seat at its lower end, and the reinforcing rod is hinged between the ring 701 and the outer ring 501.

[0039] Reference Figure 3 The leveling component 2 includes multiple horizontal support rods 201 and a water platform 202. One end of each horizontal support rod 201 is hinged to the intermediate component 301, which can form an extended state or a retracted state relative to the main rod 302. When the horizontal support rod 201 is in the retracted state, all the horizontal support rods 201 together form a columnar structure.

[0040] Reference Figure 3 The horizontal support rod 201 is equipped with a height adjustment knob 203. When the horizontal support rod 201 is in the unfolded state, the water platform 202 is installed on the horizontal support rod 201. The levelness of the water platform 202 can be adjusted by adjusting the height adjustment knob 203. The laser measurement body 1 is equipped with a horizontal observation component 9.

[0041] The height adjustment knob 203 is threadedly connected to the horizontal support rod 201. The top of the knob abuts against the bottom of the water platform 202. Rotating the knob can change the length of the knob extending out of the horizontal support rod 201.

[0042] In the leveling assembly 2, the horizontal support rod 201 consists of multiple aluminum alloy rods evenly distributed around the circumference of the intermediate component 301. One end of each rod is connected to the intermediate component 301 via a damping hinge. The hinge can rotate to a horizontal position, where it is parallel to the main rod 302 when retracted and perpendicular to the main rod 302 when extended, forming a symmetrical quadrilateral support structure after extension.

[0043] The height adjustment knob 203 is engaged with the internal threaded hole at the end of the horizontal support rod 201. The top of the knob is connected to the bottom of the horizontal platform 202 by a thread. When rotated, the extension length of the height adjustment knob 203 is changed through the thread transmission to achieve fine adjustment of the level.

[0044] The surface of the water platform 202 is provided with positioning holes corresponding to the horizontal support rod 201, and the horizontal observation component 9 is a bubble level for intuitively judging the horizontal state.

[0045] Operation process:

[0046] To unfold and set up the instrument, remove it from the storage bag, unlock the limiting buckle of the horizontal support rod 201, and rotate it outward to a horizontal position, perpendicular to the main rod 302. At this time, multiple horizontal support rods 201 form a symmetrical four-corner support. Open the wrench 703 of the branch assembly 6 to release the lock of the inner rod 602. Stretch the inner rod 602 to a suitable length according to the flatness of the tunnel surface, and tighten the wrench 703 so that the clamping part 702 is embedded into the groove 603 of the inner rod 602 to complete the locking. Press the operating part 505 of the ring assembly 5 to slide the ring assembly 5 down along the main rod 302. The locking part 503 is embedded into the vertical surface of the tooth 402 under the action of the return spring, realizing the position locking of the ring assembly 5 and forming a stable four-corner support system.

[0047] During the leveling operation, observe the bubble level on the water platform 202. If the bubble deviates from the center, rotate the height adjustment knob 203 at the corresponding position until the bubble is centered and the required levelness is achieved. At this time, the water platform 202 is in a horizontal state, providing a reference plane for the laser measurement body 1.

[0048] In the measurement operation, the laser measurement unit 1 is installed on the water platform 202. After the equipment is started, the laser transmitter emits a laser beam, which scans the tunnel cross-section in both horizontal and vertical directions under the drive of the motor. After the laser beam is reflected by the tunnel wall, it is received by the receiver, and the distance of the laser point is calculated using the time-of-flight method. During the measurement process, the multi-directional force-bearing structure of the support mechanism 3 resists tunnel vibration interference, ensuring the stability of the measurement data. After the measurement is completed, the data can be wirelessly transmitted to the terminal device or stored locally.

[0049] During the storage process, the ring assembly 5 is slid upward along the main rod 302, and the snap-fit ​​503 slides along the obtuse angle inclined surface of the ratchet, automatically passing over the teeth 402, and pushing the ring assembly 5 upward to the top of the main rod 302; the lever 703 of the outrigger assembly 6 is opened, and the inner rod 602 is retracted to its shortest state; the outrigger assembly 6 is folded until it is parallel to the main rod 302; the main rod 302 is retracted to its shortest state, completing the overall storage and forming a compact structure that is easy to carry.

[0050] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A laser profile measuring instrument for mining, characterized in that, The system includes a laser measuring body (1), a leveling component (2), and a support mechanism (3). The laser measuring body (1) is mounted on top of the support mechanism (3) via the leveling component (2). The support mechanism (3) includes an intermediate component (301), a main rod (302) located at the center of the intermediate component (301), and multiple leg components (6) hinged to the intermediate component (301). The leg components (6) are evenly spaced around the main rod (302). The main rod (302) has an axially extending guide structure (4). The guide structure (4) is provided with a limiting structure (502). A slidable ring component (5) is sleeved on the main rod (302). The ring component (5) can slide along the guide structure (4) and is locked in position by the limiting structure (502). A reinforcing rod (8) is hinged between each leg component (6) and the ring component (5).

2. The mining laser profile measuring instrument according to claim 1, characterized in that, The guide structure (4) is a guide groove (401) arranged along the axial direction of the main rod (302). A ratchet structure is distributed in the guide groove (401). The ratchet structure is the teeth (402) of the ratchet. Adjacent teeth (402) are arranged side by side along the axial direction of the main rod (302). One side of the teeth (402) is an obtuse angle inclined surface, and the other side is a vertical surface or an acute angle inclined surface.

3. The mining laser profile measuring instrument according to claim 2, characterized in that, The ring assembly (5) includes an outer ring (501) and a snap-fit ​​member (503) disposed on the outer ring (501). The snap-fit ​​member (503) is connected to the outer ring (501) through an elastic member (504). The end of the snap-fit ​​member (503) can engage with the teeth (402) of the ratchet. The outer ring (501) is provided with an operating part (505). Pressing the operating part (505) can drive the snap-fit ​​member (503) to compress the elastic member (504) and disengage from the teeth (402).

4. The mining laser profile measuring instrument according to claim 3, characterized in that, The elastic element (504) is a reset spring. The end of the snap-fit ​​element (503) away from the teeth (402) is connected to the reset spring, and the end of the reset spring away from the snap-fit ​​element (503) is fixedly connected to the inner wall of the outer ring (501).

5. The mining laser profile measuring instrument according to claim 4, characterized in that, The outrigger assembly (6) is a telescopic outrigger assembly (6). The outrigger assembly (6) includes an inner rod (602). Two outer rods (601) are symmetrically arranged on both sides of the inner rod (602). The upper ends of the two outer rods (601) are provided with rod seats (605). The rod seats (605) are hinged to the intermediate component (301). The inner rod (602) and the two outer rods (601) are together fitted with a locking structure (7). The inner rod (602) passes through the locking structure (7) and is locked by the locking structure (7).

6. The mining laser profile measuring instrument according to claim 5, characterized in that, The locking structure (7) includes a ring (701), which is fixedly mounted on the outer rod (601). The ring (701) has a through hole in the middle for the inner rod (602) to pass through freely. The outer wall of the inner rod (602) forms a groove (603) along the axial direction. A clamping member (702) is inserted into the inner wall of the through hole corresponding to the position of the groove (603). A wrench (703) is provided on the ring (701). The wrench (703) is connected to the ring (701) through a rotating shaft (704). One end of the wrench (703) connected to the rotating shaft (704) is an eccentric cylindrical structure. When the wrench (703) is close to the inner rod (602), the clamping member (702) is clamped through the eccentric cylindrical structure, and the clamping member (702) is embedded in the groove (603).

7. The mining laser profile measuring instrument according to claim 6, characterized in that, The inner rod (602) is provided with a limiting block (604) at its upper end. The limiting block (604) is slidably connected to the two outer rods (601). The lower end of the inner rod (602) is provided with a support seat. The reinforcing rod (8) is hinged between the ring sleeve (701) and the outer ring body (501).

8. The mining laser profile measuring instrument according to claim 7, characterized in that, The leveling component (2) includes multiple horizontal support rods (201) and a water platform (202). One end of the horizontal support rod (201) is hinged to the middle component (301) to form an unfolded state or a retracted state relative to the main rod (302). When the horizontal support rod (201) is in the retracted state, all the horizontal support rods (201) together form a columnar structure.

9. The mining laser profile measuring instrument according to claim 8, characterized in that, The horizontal support rod (201) is provided with a height adjustment knob (203). When the horizontal support rod (201) is in the unfolded state, the water platform (202) is installed on the horizontal support rod (201). The levelness of the water platform (202) can be adjusted by adjusting the height adjustment knob (203). The laser measurement body (1) is provided with a horizontal observation component (9).

10. The mining laser profile measuring instrument according to claim 9, characterized in that, The height adjustment knob (203) is threadedly connected to the horizontal support rod (201), and the top of the knob abuts against the bottom of the water platform (202). Rotating the knob can change the length of its extension from the horizontal support rod (201).

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