Laser suspension compass for mine survey

Abstract

The invention discloses a laser suspension compass for mine survey, and relates to the technical field of compass, the technical key points are that the laser suspension compass comprises a bent arm support, and the bent arm support is provided with a dustproof mechanism and a locking structure; the dustproof mechanism comprises two first connecting shafts rotationally connected to the inner wall of the bent arm support, the ends, close to each other, of the two first connecting shafts are fixedly connected with a circular ring frame set, the inner wall of the circular ring frame set is rotationally connected with two second connecting shafts, the ends, close to each other, of the two second connecting shafts are fixedly connected with a compass, and the compass is fixedly connected with the inner wall of the circular ring frame set. The dustproof compass has the technical effects that the dustproof mechanism, the dustproof cover and the sponge pad are matched with one another, so that dust is prevented from being attached to the mirror surface to influence the reading accuracy and optical performance of the compass when the compass is in an idle state in a mine measurement process, the service life of the compass is prolonged, and the influence on the reading accuracy and the optical performance of the compass in subsequent measurement work is ensured. The compass can always keep an accurate and reliable working state, and provides accurate data support for mine survey work.

Description

Technical Field

[0001] This invention relates to the field of compass technology, specifically to a laser-suspended compass for mining surveying. Background Technology

[0002] The background technology of laser suspended compasses for mine surveying stems from the core need for underground orientation in mine construction and production. Underground environments are harsh, with no GPS signals, narrow spaces, and dust and vibration, which limits the effectiveness of traditional surveying methods: ordinary compasses have low accuracy when manually aimed, are susceptible to interference, and lack a visual baseline; conventional laser surveying equipment lacks a suitable suspension structure for underground use and is difficult to orient independently, thus failing to balance accuracy and environmental adaptability. However, with the maturity of multidisciplinary technologies such as geomagnetic field orientation principles in surveying science, laser collimation technology in optical engineering, and precise anti-interference design in instrument science, support has been provided for the development of specialized orientation instruments adapted to mining scenarios, ultimately leading to the development of laser suspended compasses that can meet the needs of tunnel excavation, mining layout, and safety monitoring.

[0003] In mine surveying, traditional methods of using and maintaining compasses are not conducive to effectively preventing dust from adhering to the mirror surface when the compass is not in use. The lack of suitable protective measures makes it easy for dust to accumulate. This dust not only affects the accuracy of the compass readings, causing deviations in the measurement data, but also damages its optical performance, shortening the lifespan of the compass in the long run. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a laser suspended compass for mining surveying. By incorporating a dustproof mechanism, with the dust cover and sponge pad working together, dust is prevented from adhering to the mirror surface when the compass is not in use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser suspension compass for mining surveying, comprising a curved arm support, wherein a dustproof mechanism and a locking structure are provided on the curved arm support; The dustproof mechanism includes two connecting shafts 1 rotatably connected to the inner wall of the curved arm bracket. A ring frame assembly is fixedly connected to one end of each connecting shaft 1 that is close to each other. Two connecting shafts 2 are rotatably connected to the inner wall of the ring frame assembly. A compass is fixedly connected to one end of each connecting shaft 2 that is close to each other. A plurality of connecting grooves are provided on the outer wall of the compass. A dust cover is slidably connected to the outer wall of the plurality of connecting grooves. A sponge pad is provided between the dust cover and the compass. Four connecting ears are fixedly connected to the outer wall of the dust cover. The inner walls of the four connecting ears are in contact with the outer walls of the connecting shafts 1 and 2, respectively.

[0006] Preferably, the top of the curved arm support is provided with a movable frame, the movable frame is threadedly connected to the curved arm support with bolts, the inner wall of the curved arm support is provided with a hanging rope, and the top of the movable frame is fixedly connected with a laser head.

[0007] Preferably, the locking structure includes a groove formed inside the curved arm bracket, a slider is slidably connected to the inner wall of the groove, and a threaded rod is rotatably connected to the top of the slider.

[0008] Preferably, the threaded rod extends to the inner wall of the bent arm bracket, and a limiting shaft is fixedly connected to the outer wall of the connecting shaft on the left side.

[0009] Preferably, two springs are fixedly connected to the bottom of the slider, and a positioning block is fixedly connected to the bottom end of the two springs. The bottom of the positioning block is formed by an arc, and the positioning block is in contact with the outer wall of the limiting shaft.

[0010] Preferably, the inner wall of the positioning block is fixedly connected with several arc-shaped blocks, and the outer wall of the limiting shaft is provided with several arc-shaped grooves, with the several arc-shaped blocks respectively matching the several arc-shaped grooves.

[0011] Preferably, a locking block is fixedly connected to the bottom of the slider, and a slot is provided on the connecting ear. The inner wall of the slot is in contact with the locking block, and the width of the locking block is smaller than the inner width of the slot.

[0012] Preferably, the card block has an inclined groove, the inner wall of the slot is fixedly connected to a sliding shaft, the inner wall of the inclined groove is in contact with and slidably connected to the outer wall of the sliding shaft, and the bottom opening of the inclined groove has a flared opening.

[0013] Compared with the prior art, the present invention provides a laser suspension compass for mining surveying, which has the following advantages: 1. By incorporating a dustproof mechanism, with the dust cover and sponge pad working together, dust is prevented from adhering to the mirror surface when the compass is idle during mining surveying, thus affecting the accuracy of the compass readings and optical performance. This extends the lifespan of the compass and ensures that it maintains a precise and reliable working condition in subsequent surveying work, providing accurate data support for mining surveying.

[0014] 2. With a locking structure, the slider moves the positioning block downwards and fits tightly against the limiting shaft of the connecting shaft. Because several arc-shaped blocks on the inner wall of the positioning block are matched with several slots on the connecting ear, and are locked under the pressure of the spring, the connecting shaft and the ring frame assembly are prevented from rotating. This further enhances the stability of the entire device in the idle state, ensuring that all parts of the equipment remain in the predetermined position under the complex environmental conditions of the mine, free from external interference, thus comprehensively protecting the performance and service life of the compass.

[0015] 3. After removing the dust cover and twisting the threaded rod downwards a certain distance, the elastic reaction force of the spring is small, making the contact force between the limiting shaft and the positioning block less than in the locked state. At this time, twisting the ring frame assembly slightly can not only adjust the rotation angle of the ring frame assembly for easy observation of the compass, but also allow the positioning block to automatically reset under the action of the spring after the angle adjustment, applying slight pressure to the limiting shaft, thereby automatically compensating and locking the angle. This facilitates the operator's flexible adjustment of the compass observation angle during actual measurement work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram illustrating the explosion effect of the present invention; Figure 3 This is a schematic diagram of the slide groove of the present invention; Figure 4 This is a rear view structural diagram of the dust cover of the present invention; Figure 5 This is a schematic cross-sectional view of the curved arm support structure of the present invention; Figure 6 This is a schematic diagram of the structure of the card block of the present invention; Figure 7 for Figure 3 Enlarged structural diagram at point A; Figure 8 for Figure 4 Enlarged structural diagram at point B; Figure 9 for Figure 5 A magnified structural diagram at point C.

[0017] In the diagram: 1. Bent arm support; 2. Dustproof mechanism; 21. Connecting shaft one; 22. Circular ring frame assembly; 23. Connecting shaft two; 24. Compass; 25. Connecting circular groove; 26. Dustproof cover; 261. Connecting ear; 27. Sponge pad; 28. Movable frame; 29. ​​Bolt; 291. Hanging rope; 292. Laser head; 3. Locking structure; 31. Slide groove; 32. Slider; 33. Threaded rod; 34. Limiting shaft; 35. Spring; 36. Positioning block; 37. Locking block; 38. Inclined groove; 39. Slot; 391. Slide shaft. Detailed Implementation

[0018] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0019] Please see Figure 1-9 This invention provides a technical solution for a laser suspension compass for mining surveying: Example 1: A laser suspension compass for mining surveying includes a curved arm support 1, on which a dustproof mechanism 2 and a locking structure 3 are provided; The dustproof mechanism 2 includes two connecting shafts 21 rotatably connected to the inner wall of the curved arm bracket 1. A ring frame assembly 22 is fixedly connected to one end of each connecting shaft 21, which is close to each other. Two connecting shafts 23 are rotatably connected to the inner wall of the ring frame assembly 22. A compass 24 is fixedly connected to one end of each connecting shaft 23, which is close to each other. Several connecting grooves 25 are formed on the outer wall of the compass 24. A dust cover 26 is slidably connected to the outer wall of the connecting grooves 25. A sponge pad 27 is placed between the dust cover 26 and the compass 24. Four connecting ears 261 are fixedly connected to the outer wall of the dust cover 26. The inner walls of the four connecting ears 261 contact the outer walls of the connecting shafts 21 and 23, respectively. A movable frame 28 is provided at the top of the curved arm bracket 1. Bolts 29 are threadedly connected to the movable frame 28 and the curved arm bracket 1. The inner wall of the curved arm bracket 1 is provided with a hanging rope 291. The top of the movable frame 28 is fixedly connected to a laser head 292. After the curved arm bracket 1 is suspended by the hanging rope 291, the movable frame 28 and the curved arm bracket 1 are fixedly assembled by bolts 29. The laser head 292 is installed on the top of the curved arm bracket 1. When the whole device is suspended by the hanging rope 291 and not in use, the ring frame 22 and the compass 24 can be rotated so that the ring frame 22, the compass 24 and the curved arm bracket 1 are on the same horizontal plane. After the sponge pad 27 is covered on the front side of the compass 24, the multiple connecting cylinders on the inner wall of the dust cover 26 are aligned with the multiple connecting grooves 25 on the outer wall of the compass 24 so that the dust cover 26 can be assembled on the front side of the sponge pad 27. The sponge pad 27 is used to protect the mirror surface on the front side of the compass 24 from dust.

[0020] In embodiment two, the locking structure 3 includes a groove 31 formed inside the curved arm bracket 1. A slider 32 is slidably connected to the inner wall of the groove 31. A threaded rod 33 is rotatably connected to the top of the slider 32. The threaded rod 33 extends threadedly to the inner wall of the curved arm bracket 1. A limiting shaft 34 is fixedly connected to the outer wall of the left connecting shaft 21. Two springs 35 are fixedly connected to the bottom of the slider 32. A positioning block 36 is fixedly connected to the bottom end of the two springs 35. The bottom of the positioning block 36 has an arc. The positioning block 36 contacts the outer wall of the limiting shaft 34. Several arc-shaped blocks are fixedly connected to the arc-shaped inner wall of the positioning block 36. Several arc-shaped grooves and several arc-shaped blocks are formed on the outer wall of the limiting shaft 34. Each ring is adapted to several arc-shaped grooves. Due to the small overall size and weight of the ring frame assembly 22, it is not necessary to exert too much force to lock the rotation of the ring frame assembly 22. After the dust cover 26 is removed and the threaded rod 33 is twisted to move downward a certain distance, the elastic reaction force of the spring 35 is small, so that the contact force between the limit shaft 34 and the positioning block 36 is less than that in the locked state. At this time, if the ring frame assembly 22 is twisted slightly, not only can the rotation angle of the ring frame assembly 22 be adjusted to facilitate the observation of the compass 24, but also the positioning block 36 can be automatically reset under the action of the spring 35 after the angle is adjusted, and apply slight pressure to the limit shaft 34, thereby automatically compensating for and locking the angle.

[0021] In embodiment three, a locking block 37 is fixedly connected to the bottom of the slider 32. A slot 39 is provided on the connecting ear 261. The inner wall of the slot 39 contacts the locking block 37. The width of the locking block 37 is smaller than the inner width of the slot 39. A slanted groove 38 is provided on the locking block 37. A sliding shaft 391 is fixedly connected to the inner wall of the slot 39. The inner wall of the slanted groove 38 contacts and slides with the outer wall of the sliding shaft 391. A flared opening is provided at the bottom of the slanted groove 38. The flared opening facilitates precise docking with the sliding shaft 391. After the dust cover 26 is assembled onto the outer wall of the compass 24... With the cooperation of the slide groove 31, the slider 32 is driven to move downward by twisting the threaded rod 33, so that the locking block 37 can be inserted into the slot 39. At the same time, the sliding shaft 391 in the slot 39 enters the inclined groove 38 through the flared opening at the bottom of the inclined groove 38. Under the action of the inclined groove 38, the locking block 37 is pressed to move backward as it moves downward and is inserted into the slot 39. This causes the dust cover 26 to press the sponge pad 27 tightly against the front mirror surface of the compass 24, improving the tightness of the fit between the dust cover 26 and the sponge pad 27 and preventing the dust cover 26 from slipping off.

[0022] Furthermore, the locking structure 3 can be set on one side to meet the specific needs of use. Of course, it can also be set on both sides symmetrically to further improve the tightness and firmness of the dust cover 26. The flared setting is also to ensure that when the locking structure 3 is set symmetrically, if one side is fixed and the other side is skewed, the inclined groove 38 and the sliding shaft 391 can also be accurately connected.

[0023] In practical use, this invention serves as a laser suspended compass for mining surveying. The design incorporates a dustproof mechanism 2, a dust cover 26, and a sponge pad 27 working together to ensure that when the compass 24 is idle during mining surveying, dust is prevented from adhering to the mirror surface, thus avoiding impacts on the accuracy of the compass readings and its optical performance. This extends the service life of the compass 24 and ensures that it maintains a precise and reliable working state in subsequent surveying work, providing accurate data support for mining surveying. With the locking structure 3 in place, the slider 32 drives the positioning block 36 to move downwards and fit tightly against the limiting shaft 34 of the connecting shaft 21. Because several arc-shaped blocks on the inner wall of the positioning block 36 are matched with several slots 39 on the connecting ear 261, and are locked under the pressure of the spring 35, the connecting shaft 21 and the ring frame assembly 22 are prevented from rotating. This further enhances the stability of the entire device in idle state, ensuring that all components remain in their predetermined positions under complex mining conditions, unaffected by external interference. This comprehensively protects the performance and service life of the compass 24, providing a reliable foundation for mining surveying work. The smooth operation provides a solid and reliable guarantee. After the dust cover 26 is removed and the threaded rod 33 is twisted to move downwards a certain distance, the elastic reaction force of the spring 35 is small, so that the contact force between the limit shaft 34 and the positioning block 36 is less than that in the locked state. At this time, if the ring frame assembly 22 is twisted slightly, not only can the rotation angle of the ring frame assembly 22 be adjusted to facilitate the observation of the compass 24, but also the positioning block 36 can be automatically reset under the action of the spring 35 after the angle is adjusted, and apply slight pressure to the limit shaft 34, thereby automatically compensating and locking the angle. This facilitates the operator to flexibly adjust the observation angle of the compass 24 in actual measurement work.

[0024] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A laser-suspended compass for mining surveying, characterized in that: It includes a curved arm bracket (1), and the curved arm bracket (1) is equipped with a dustproof mechanism (2) and a locking structure (3); The dustproof mechanism (2) includes two connecting shafts (21) rotatably connected to the inner wall of the curved arm bracket (1). A ring frame assembly (22) is fixedly connected to one end of the two connecting shafts (21) that are close to each other. Two connecting shafts (23) are rotatably connected to the inner wall of the ring frame assembly (22). A compass (24) is fixedly connected to one end of the two connecting shafts (23) that are close to each other. A plurality of connecting grooves (25) are provided on the outer wall of the compass (24). A dust cover (26) is slidably connected to the outer wall of the plurality of connecting grooves (25). A sponge pad (27) is provided between the dust cover (26) and the compass (24). Four connecting ears (261) are fixedly connected to the outer wall of the dust cover (26). The inner walls of the four connecting ears (261) are in contact with the outer walls of the connecting shafts (21) and the connecting shafts (23) respectively.

2. The laser suspension compass for mining surveying according to claim 1, characterized in that: The top of the curved arm bracket (1) is provided with a movable frame (28), and the movable frame (28) is threadedly connected to the curved arm bracket (1) with bolts (29). The inner wall of the curved arm bracket (1) is provided with a hanging rope (291), and the top of the movable frame (28) is fixedly connected with a laser head (292).

3. The laser suspension compass for mining surveying according to claim 2, characterized in that: The locking structure (3) includes a groove (31) opened inside the curved arm bracket (1), a slider (32) is slidably connected to the inner wall of the groove (31), and a threaded rod (33) is rotatably connected to the top of the slider (32).

4. A laser suspension compass for mining surveying according to claim 3, characterized in that: The threaded rod (33) extends threadedly to the inner wall of the bent arm bracket (1) and is fixedly connected to the limit shaft (34) on the outer wall of the connecting shaft (21) on the left side.

5. A laser suspension compass for mining surveying according to claim 4, characterized in that: Two springs (35) are fixedly connected to the bottom of the slider (32), and a positioning block (36) is fixedly connected to the bottom end of the two springs (35). The bottom of the positioning block (36) is open with an arc, and the positioning block (36) is in contact with the outer wall of the limiting shaft (34).

6. A laser suspension compass for mining surveying according to claim 5, characterized in that: The inner wall of the positioning block (36) is fixedly connected with several arc-shaped blocks, and the outer wall of the limiting shaft (34) is provided with several arc-shaped grooves. The several arc-shaped blocks are respectively adapted to the several arc-shaped grooves.

7. A laser suspension compass for mining surveying according to claim 6, characterized in that: The bottom of the slider (32) is fixedly connected to a card block (37), and a slot (39) is provided on the connecting ear (261). The inner wall of the slot (39) is in contact with the card block (37), and the width of the card block (37) is smaller than the inner width of the slot (39).

8. A laser suspension compass for mining surveying according to claim 7, characterized in that: The card block (37) has a slanted groove (38), and the inner wall of the slot (39) is fixedly connected to a sliding shaft (391). The inner wall of the slanted groove (38) is in contact with and slidably connected to the outer wall of the sliding shaft (391). The bottom opening of the slanted groove (38) has an flared opening.

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