Device for improving laser pointing of mine laneway

Abstract

The utility model relates to the technical field of mine laneway laser pointing, in particular to a device for improving mine laneway laser pointing. Comprising a pair of dials which are vertically and crossly mounted; a central ball is arranged in the center of the two dials; supporting rods are connected between the two sides of the center ball and the inner wall of the notch of the dial in a bolted mode. Two pairs of sliding grooves are formed in the periphery of the center ball. A sliding piece is slidably installed in the sliding groove. A pointer which is in sliding contact with the surface of the dial is mounted at one end, far away from the central ball, of the sliding part; the pointer on the dial in the horizontal state is adjusted to point to a designed angle, namely the horizontal direction of tunneling; the pointer on the dial in the vertical state is adjusted to point to the designed angle, namely the tunneling slope direction; therefore, accurate pointing is provided for the laser beam of the laser pointing instrument, the pointing stability is ensured, and the roadway tunneling precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser pointing technology in mine roadways, specifically a device for improving laser pointing in mine roadways. Background Technology

[0002] Mine roadway excavation is a core part of the mining process; the roadways formed by the excavation provide physical channels for underground coal resource mining and form the skeleton structure of production systems such as ore transportation, personnel passage, ventilation and drainage. Therefore, the accuracy of mine roadway excavation is of paramount importance.

[0003] In existing mine roadway excavation, the high directionality of laser beams is used to provide direction for the excavation work. That is, a laser pointer is installed on the roof or sidewall of the roadway to project a straight beam of light onto the excavation face as a visual reference line; the excavation equipment adjusts its direction of travel according to the position of the light spot.

[0004] Since the laser pointer is installed on the roof of the tunnel, the tunneling direction needs to be guided by the laser pointer. However, in actual tunneling, there is often a slope in the tunneling direction, which makes it difficult to control the accuracy of the center line and causes errors. This results in angular errors in the laser beam generated by the laser pointer, causing deviations in the tunneling direction.

[0005] Therefore, a laser pointing device for improving mine roadways is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The laser pointing device for improving mine roadways of this utility model includes a pair of vertically intersecting scales; each of the two scales has a slot in the middle; a central sphere is set at the center of the two scales; support rods are bolted between the two sides of the central sphere and the inner wall of the slot of the scale; two pairs of sliding grooves are formed on the outer periphery of the central sphere; a sliding member is slidably installed inside the sliding groove; a pointer is installed at the end of the sliding member away from the central sphere and slides in contact with the surface of the scale.

[0008] Preferably, a mounting bracket is bolted to the end of the slider away from the central ball; pointers are bolted to both ends of the mounting bracket on the side away from the central ball.

[0009] Preferably, both ends of the mounting bracket are provided with positioning slots; the end of the pointer near the mounting bracket is fixed with a locking block that cooperates with the positioning slot.

[0010] Preferably, the end of the protrusion at both ends of the central sphere away from the central sphere is provided with a square block; the end of the support rod near the central sphere is provided with a square groove that matches the square block.

[0011] Preferably, the outer ring of the support rod is fitted with a limiting ring seat; the limiting ring seat can contact the inner wall of the groove opening away from the groove opening.

[0012] Preferably, arc-shaped iron pieces are fixed to both sides of the dial and to both sides of the slot; a magnet is fixed to the middle of the pointer; and the magnet attracts the arc-shaped iron pieces.

[0013] Preferably, the pointing device further includes a support base; a support frame is rotatably mounted on the top of the support base; a screw hole is opened in the middle of the bottom surface of the support base; a cross-shaped fixing frame is rotatably mounted on the top of the support frame; the fixing frame is bolted to the two dials.

[0014] The advantages of this utility model are:

[0015] 1. The present invention provides a laser pointing device for improving mine roadway positioning. It comprises a dial, a central ball, a support rod, a sliding element, and a pointer. By adjusting the pointer on the horizontal dial to point to the designed angle (i.e., the horizontal direction of excavation), and by adjusting the pointer on the vertical dial to point to the designed angle (i.e., the slope direction of excavation), the device provides accurate pointing for the laser beam, ensuring pointing stability and improving roadway excavation accuracy.

[0016] 2. The laser pointing device for improving mine roadways described in this utility model comprises a support base, a support frame, and a fixing frame. The support base and support frame are fixedly installed by screws and locking nuts, allowing the support frame to rotate and change its angle, thereby enabling the guiding device to change its horizontal angle. The fixing frame is fixed to the support frame by bolts, allowing the fixing frame to rotate, thereby enabling the guiding device to rotate and facilitating the adjustment of the horizontal and vertical states of the two scales. A support base plate can be installed at the bottom of the support base through screw holes, facilitating the placement of the guiding device on the surface of an object. Simultaneously, a lifting ring can be installed in the screw holes of the support base to hoist the guiding device onto the roadway ceiling, thus facilitating use by workers according to different needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the scale in this utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the central ball, support rod, and pointer in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the central sphere in this utility model;

[0023] Figure 6 This is a schematic diagram of the exploded structure of the central sphere in this utility model;

[0024] Figure 7 This is a schematic diagram of the sliding component and mounting bracket in this utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the support rod and the limiting ring seat in this utility model;

[0026] Figure 9 This is a schematic diagram of the pointer structure in this utility model;

[0027] Figure 10 This is a structural schematic diagram of the support base, support frame, and fixing frame in this utility model.

[0028] In the diagram: 1. Dial; 2. Groove; 3. Center ball; 4. Support rod; 5. Slide groove; 6. Sliding component; 7. Pointer; 8. Fixing groove; 9. Fixing block; 10. Mounting bracket; 11. Positioning slot; 12. Locking block; 13. Limiting ring seat; 14. Arc-shaped iron sheet; 15. Magnet; 16. Support base; 17. Support frame; 18. Fixing frame. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] like Figures 1 to 6 As shown, a laser pointing device for improving mine roadway positioning includes a pair of vertically intersecting dials 1; each of the two dials 1 has a slot 2 in the middle; a central sphere 3 is set at the center of the two dials 1; support rods 4 are bolted between the two sides of the central sphere 3 and the inner wall of the slot 2 of the dial 1; two pairs of sliding grooves 5 are formed on the outer periphery of the central sphere 3; a sliding member 6 is slidably installed inside the sliding groove 5; a pointer 7 is installed at the end of the sliding member 6 away from the central sphere 3, which slides in contact with the surface of the dial 1.

[0031] In specific implementation, a circular groove is provided in the middle of both sides of the dial 1, and scale lines are evenly arranged on the outer periphery of the circular groove; the slot 2 is opened from the middle of the side of the dial 1, and does not penetrate the entire dial 1; a fixing slot 8 is provided on both sides of the opening of the slot 2; a fixing block 9 matching the fixing slot 8 is fixedly connected to both sides of the middle of the side of the dial 1 away from the opening of the slot 2; the central ball 3 is a spherical structure, and a protruding post fixedly connected to the support rod 4 is fixedly connected to the middle of both sides; the two pairs of sliding grooves 5 on the outer ring of the central ball 3 correspond to the two dials 1 respectively; that is, each sliding groove 5 corresponds to half of each dial 1; the four sliding grooves 5 are distributed around the outer periphery of the central ball 3 with the axis of the protruding post of the central ball 3 as the center; the pointer 7 slides in cooperation with the circular groove of the dial 1;

[0032] During assembly, two support rods 4 are fixed to the protruding posts on both sides of the central ball 3. Then, one support rod 4 is passed through the slot 2 of a dial 1 and locked to the dial 1 with a nut. Next, the slot 2 of the other dial 1 is aligned with the slot 2 of the first dial 1, and the two dials 1 are perpendicular to each other. The two dials 1 are inserted into each other along the slot 2, so that the fixing block 9 on one dial 1 is inserted into the fixing groove 8 on the other dial 1. Screws are used to pass through the fixing block 9 and lock it to the fixing groove 8. The other unfixed support rod 4 is passed through the slot 2 of the dial 1 to be installed later and locked with bolts. The pointer 7 on the dial 1 is fixed to the sliding part 6. This facilitates installation and disassembly, making it convenient for workers to carry and use.

[0033] In actual use, rotating the pointer 7 causes the slider 6 to slide along the groove 5 of the center ball 3, and the pointer 7 is used in conjunction with the scale lines on the dial 1 to point to the angular direction; after assembly and installation, one dial 1 is kept horizontal and the other dial 1 is kept vertical.

[0034] First, place the pointing device above the laser pointer, ensuring that the central ball 3 is vertically aligned with the laser emission origin of the laser pointer, and that the axis of the support rod 4 is parallel to the axis of the excavated tunnel. Then, according to the horizontal angle of the tunnel on the drawing, adjust the pointer 7 on the horizontal dial 1 to point to the designed angle, i.e., the horizontal direction of the excavation. Finally, set the horizontal direction of the laser beam of the laser pointer along the pointer 7 on the horizontal dial 1.

[0035] Next, place the pointing device on the side of the laser pointer, ensuring that the central ball 3 is horizontally aligned with the laser emission origin of the laser pointer, and that the axis of the support rod 4 is parallel to the axis of the excavated tunnel. Then, according to the slope angle of the tunnel on the drawings, adjust the pointer 7 on the vertical dial 1 to point to the designed angle, i.e., the direction of the excavation slope. Set the laser beam slope direction of the laser pointer along the direction of the pointer 7 on the vertical dial 1.

[0036] This provides accurate pointing of the laser beam of the laser pointer, ensuring pointing stability and improving tunnel excavation accuracy.

[0037] like Figures 5 to 7 As shown, a mounting bracket 10 is bolted to one end of the sliding member 6 away from the central ball 3; pointers 7 are bolted to both ends of the mounting bracket 10 on the side away from the central ball 3.

[0038] In specific implementation, the middle part of the mounting bracket 10 is a square column; a pair of clamps are fixed to the side of the square column near the sliding member 6, and the two clamps are in contact with the outer wall of the end of the sliding member 6 away from the central ball 3, and are fixed by bolts; mounting blocks are fixed to both ends of the side of the square column away from the sliding member 6, and the side of the two mounting blocks away from each other is aligned with the bottom surface of the circular groove of the scale 1.

[0039] The two pointers 7 are fixed to the mounting blocks of the mounting bracket 10 with screws, so that pointers 7 that move synchronously are set on both sides of the dial 1, which makes it easier for staff to use and observe.

[0040] like Figures 5 to 7 As shown, both ends of the mounting bracket 10 are provided with positioning slots 11; the end of the pointer 7 near the mounting bracket 10 is fixed with a locking block 12 that cooperates with the positioning slot 11;

[0041] In practice, the position of the positioning slot 11 corresponds to the mounting block of the mounting bracket 10. When the pointer 7 is installed on the mounting block of the mounting bracket 10, the locking block 12 on the pointer 7 is inserted into the positioning slot 11. This not only aligns the screw hole on the pointer 7 with the screw hole on the mounting block of the mounting bracket 10, making it easier to install screws, but also effectively avoids the installation offset of the pointer 7, which would cause angular error.

[0042] like Figure 5 and Figure 8 As shown, a square block is provided at the end of the protrusion at both ends of the central sphere 3 away from the central sphere 3; a square groove matching the square block is provided at the end of the support rod 4 near the central sphere 3.

[0043] In practice, the square slot at the end of the support rod 4 is inserted into the square block of the center ball 3, and then screws are used to fix it, thereby fixing the center ball 3 and the support rod 4, which facilitates the installation and removal of the center ball 3.

[0044] like Figure 4 , Figure 5 and Figure 8 As shown, the outer ring of the support rod 4 is fitted with a limiting ring seat 13; the limiting ring seat 13 can contact the inner wall of the groove 2 away from the opening of the groove 2;

[0045] In practice, the outer ring of the limiting ring seat 13 is provided with multiple threaded holes, and the internal threads of the threaded holes are fitted with locking screws. After the two dials 1 and the support rod 4 are assembled and fixed, the limiting ring seat 13 is pushed to slide along the support rod 4, so that the limiting ring seat 13 contacts the inner wall of the slot 2 away from the central ball 3. Then, the locking screws are used to fix the limiting ring seat 13 to the outer ring of the support rod 4. The limiting ring seat 13, together with the nut at the end of the support rod 4, further fixes the two dials 1, thereby improving the overall stability of the pointing device.

[0046] like Figure 1 , Figure 3 and Figure 9 As shown, arc-shaped iron pieces 14 are fixedly attached to both sides of the dial 1 and to both sides of the slot 2; a magnet 15 is fixedly attached to the middle of the pointer 7; the magnet 15 is attracted to the arc-shaped iron pieces 14.

[0047] In practice, arc-shaped grooves are opened in the circular grooves on both sides of the dial 1. The arc-shaped grooves are concentric with the circular grooves. The arc-shaped iron piece 14 is pasted in the arc-shaped grooves so that the arc-shaped iron piece 14 and the circular grooves are on the same plane. A circular ring is fixed to the middle of the pointer 7, and the circular ring is located in the arc-shaped groove. The magnet 15 is fixed in the circular ring.

[0048] The pointer 7 is fixed in the circular groove of the dial 1 by the attraction between the magnet 15 and the arc-shaped iron plate 14. The pointer 7 can only be rotated and the angle adjusted when the staff pushes it. When the staff stops pushing, the pointer 7 is fixed by the attraction between the magnet 15 and the arc-shaped iron plate 14, thus preventing the pointer 7 from moving and facilitating the staff's subsequent work.

[0049] like Figure 1 , Figure 2 and Figure 10 As shown, the pointing device also includes a support base 16; a support frame 17 is rotatably mounted on the top of the support base 16; a screw hole is opened in the middle of the bottom surface of the support base 16; a cross-shaped fixing frame 18 is rotatably mounted on the top of the support frame 17; the fixing frame 18 is bolted to the two dials 1.

[0050] In practice, the support base 16 is located outside the center ball 3 of the dial 1 and does not contact the dial 1; a screw is provided on the side of the support base 16 near the center ball 3, and the screw passes through the support frame 17. A locking nut is installed on the outer thread of the screw, and the locking nut can lock and fix the support frame 17; a screw hole is provided on the side of the support base 16 away from the center ball 3.

[0051] The end of the support frame 17 away from the support base 16 is aligned with the support rod 4. The side of the support frame 17 away from the support base 16 and close to the dial 1 is fixed with bolts to the bracket 18.

[0052] The fixing bracket 18 has a cross-shaped structure, and each end of the fixing bracket 18 has an extension post on the side near the dial 1, which contacts the side of the dial 1.

[0053] The two dials 1 after assembly are fixed to the bracket 18 with screws on one side of the two dials 1 that has a cross-shaped structure.

[0054] The support base 16 and the support frame 17 are fixedly installed by screws and locking nuts, so that the support frame 17 can rotate to change the angle, thereby allowing the guide device to change the horizontal angle; the fixed frame 18 is fixed to the support frame 17 by bolts, so that the fixed frame 18 can rotate, thereby allowing the guide device to rotate, which facilitates the adjustment of the horizontal and vertical states of the two scales 1.

[0055] The screw holes at the bottom of the support base 16 allow for the installation of a support base plate, facilitating the placement of the guide device on the surface of an object. Additionally, lifting rings can be installed within the screw holes of the support base 16 to hoist the guide device onto the tunnel roof, thus enabling workers to use it according to different needs.

[0056] Working principle: During assembly, two support rods 4 are fixed to the protruding posts on both sides of the central ball 3 respectively. Then, one support rod 4 is passed through the slot 2 of a dial 1 and the support rod 4 is locked to the dial 1 with a nut. Next, the slot 2 of the other dial 1 is aligned with the slot 2 of the first dial 1, and the two dials 1 are perpendicular to each other. The two dials 1 are inserted into each other along the slot 2, so that the fixing block 9 on one dial 1 is inserted into the fixing groove 8 on the other dial 1. The screw is passed through the fixing block 9 and locked to the fixing groove 8. The other unfixed support rod 4 is passed through the slot 2 of the dial 1 to be installed later, and the support rod 4 is also locked with a bolt.

[0057] Push the limiting ring seat 13 to slide along the support rod 4 so that the limiting ring seat 13 contacts the inner wall of the slot 2 away from the center ball 3. Then use the locking screw to fix the limiting ring seat 13 to the outer ring of the support rod 4. The limiting ring seat 13 cooperates with the nut at the end of the support rod 4 to further fix the two scales 1.

[0058] When the pointer 7 is installed on the mounting block of the mounting bracket 10, the locking block 12 on the pointer 7 is inserted into the positioning slot 11, so that the screw hole on the pointer 7 is aligned with the screw hole on the mounting block of the mounting bracket 10, and then the screw is used to fix and lock it.

[0059] Finally, the cross-shaped side of the two dials 1 is fixed to the fixing frame 18 with screws, and the support base 16 is fixed to the support frame 17 with screws and locking nuts, so that the support frame 17 can rotate to change the angle, thereby allowing the guide device to change the horizontal angle; the fixing frame 18 is fixed to the support frame 17 with bolts, so that the fixing frame 18 can rotate, thereby allowing the guide device to rotate, which facilitates the adjustment of the horizontal and vertical states of the two dials 1;

[0060] In practical use, keep one dial 1 horizontal and the other dial 1 vertical;

[0061] First, place the pointing device above the laser pointer, ensuring that the central ball 3 is vertically aligned with the laser emission origin of the laser pointer, and that the axis of the support rod 4 is parallel to the axis of the excavated tunnel. Then, according to the horizontal angle of the tunnel on the drawing, adjust the pointer 7 on the horizontal dial 1 to point to the designed angle, i.e., the horizontal direction of the excavation. Finally, set the horizontal direction of the laser beam of the laser pointer along the pointer 7 on the horizontal dial 1.

[0062] Next, place the pointing device on the side of the laser pointer, ensuring that the central ball 3 is horizontally aligned with the laser emission origin of the laser pointer, and that the axis of the support rod 4 is parallel to the axis of the excavated tunnel. Then, according to the slope angle of the tunnel on the drawings, adjust the pointer 7 on the vertical dial 1 to point to the designed angle, i.e., the direction of the excavation slope. Set the laser beam slope direction of the laser pointer along the direction of the pointer 7 on the vertical dial 1.

[0063] This provides accurate pointing of the laser beam of the laser pointer, ensuring pointing stability and improving tunnel excavation accuracy.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A laser pointing device for improving mine roadways, characterized in that: It includes a pair of vertically intersecting dials; each of the dials has a slot in its center; a central sphere is located at the center of the two dials; support rods are bolted between the two sides of the central sphere and the inner wall of the slot of the dial; two pairs of sliding grooves are formed on the outer periphery of the central sphere; a sliding element is slidably installed inside the sliding groove; a pointer is installed at the end of the sliding element away from the central sphere and slides in contact with the surface of the dial.

2. The laser pointing device for improving mine roadways according to claim 1, characterized in that: The sliding member is attached to a mounting bracket at one end away from the central ball; pointers are attached to both ends of the mounting bracket on the side away from the central ball.

3. The laser pointing device for improving mine roadways according to claim 2, characterized in that: Both ends of the mounting bracket are provided with positioning slots; the end of the pointer near the mounting bracket is fixed with a locking block that cooperates with the positioning slot.

4. The laser pointing device for improving mine roadways according to claim 1, characterized in that: The protruding posts at both ends of the central sphere have square blocks at the ends away from the central sphere; the support rod has a square groove at the end near the central sphere that matches the square blocks.

5. The laser pointing device for improving mine roadways according to claim 1, characterized in that: The outer ring of the support rod is fitted with a limiting ring seat; the limiting ring seat can contact the inner wall of the groove away from the opening of the groove.

6. The laser pointing device for improving mine roadways according to claim 1, characterized in that: Both sides of the dial and both sides of the slot are fixed with arc-shaped iron pieces; a magnet is fixed to the middle of the pointer; the magnet is attracted to the arc-shaped iron pieces.

7. The laser pointing device for improving mine roadways according to claim 1, characterized in that: The pointing device also includes a support base; a support frame is rotatably mounted on the top of the support base; a screw hole is opened in the middle of the bottom surface of the support base; a cross-shaped fixing frame is rotatably mounted on the top of the support frame; the fixing frame is bolted to the two dials.

Images