Portable wire marker for underground roadway

Abstract

The application relates to a mine underground tool, in particular to a portable wire laying device for underground roadway; the device comprises a fixed end and a movable end; the fixed end comprises a hole arranged on a wall and a bearing cylinder fixedly arranged in the hole; the movable end comprises a plug rod, a baffle disc, a support, a laser sleeve and a laser pen; the plug rod and the support are coaxially fixed at two ends of the baffle disc respectively. According to the technical scheme, after the planar position of a mine room is measured and the coordinates of each characteristic section are measured, a hole is arranged on the wall opposite to the mine room which needs to be sampled, the hole axis is coincident with the mine room center line; the bearing cylinder is arranged in the hole; when the wire needs to be laid, the plug rod is inserted into the bearing cylinder; the laser pen is turned on and always indicates; the operation personnel do not need to repeatedly hang the wire in the mine room and do not need to correct, so that repeated wire laying work is avoided, and the underground construction efficiency is improved.

Description

Technical Field

[0001] This application relates to a mining underground tool, and more particularly to a portable wire-laying device for underground roadways. Background Technology

[0002] In existing mining operations, especially underground mining, the surveying work is arduous, with a large amount of work involved in setting out surveys. Furthermore, the geological conditions of access blocks are very poor. In order to take into account all locations during the surveying, setting out, and acceptance of the blocks, there is not much room for choice in the selection of instruments.

[0003] Traditional methods for inspecting and leveling instruments involve inputting coordinates to determine the planar position of the stope and the coordinates of various characteristic profiles. Inspecting a single stope takes at least forty minutes, is labor-intensive, requires a large number of personnel, and involves excessive time spent in the goaf. Currently, the method of driving wooden stakes into the roof and dropping a string to indicate the centerline direction of roadway excavation is still used. However, this method has drawbacks: it does not guarantee project quality and requires excessive maintenance. Furthermore, the time spent setting up and laying out instruments during daily work is too long, posing a safety risk to the technicians. Frequent or prolonged laying and measurement also obstructs underground roads or the circulation yard, impacting underground production.

[0004] Existing shortcomings: First, the accuracy is relatively poor. Controlling the direction using only the guide ropes and visual identification results in significant errors, easily causing the project to deviate from the design direction. This is mainly reflected in the fact that before each excavation, small stones are hung on the three guide ropes already installed along the direction line, and the center position of the tunnel face is determined and marked visually using the principle of three points forming a line. Due to the influence of underground ventilation, the guide ropes sway, resulting in a certain deviation in the determined center position. When the guide ropes are far from the tunnel face, the maximum deviation has reached 500mm.

[0005] Secondly, the cord is prone to breakage, resulting in a large amount of maintenance work.

[0006] Third: Frequent calibration is required, necessitating re-centering every 20 meters. During measurement tasks, and due to flying rocks from blasting and scraping from excavators and trucks after blasting, the cable frequently breaks. Poor air quality during excavation often leads to cable breakage being discovered during tunneling. With a minimum tunnel height of 4.5 meters, reconnecting the cable requires moving the excavator, delaying tunneling operations and increasing maintenance costs.

[0007] Fourth: The safety factor is low. For technicians, the workload is too heavy, causing fatigue and excessive labor intensity. The longer the time spent providing technical guidance at the underground production face, the lower the safety factor.

[0008] Fifth: Frequent maintenance and repetitive layout work affect the production and construction of the working face. As the underground equipment circulates in the mine access road and various working faces, the road occupancy will inevitably cause equipment stoppage. In addition, the noise generated by the equipment during the construction and excavation of the working face is relatively large, and the drilling rig must be stopped during the technical guidance process. Summary of the Invention

[0009] The purpose of this application is to propose a portable wire-laying device for underground roadways that eliminates the aforementioned defects.

[0010] This application is implemented as follows: a portable wire laying device for underground roadways, comprising a fixed end and a movable end; the fixed end includes a hole opened in the wall and a support cylinder fixedly installed in the hole; the movable end includes a rod, a baffle plate, a support, a laser sleeve, and a laser pointer; the rod and the support are coaxially fixed at both ends of the baffle plate; the rod is inserted into the support cylinder, and the outer diameter of the baffle plate is larger than the inner diameter of the support cylinder; the laser pointer, which can be inserted into the laser sleeve, is fixedly installed on the support along with the laser sleeve.

[0011] Furthermore, the hole depth is 2 to 10 centimeters longer than the length of the support cylinder; the inner diameter of the hole is 1 to 4 centimeters larger than the outer diameter of the support cylinder; and a gelatinous layer is filled between the inner wall of the hole and the outer wall of the support cylinder.

[0012] Furthermore, an outer receiving ring and an inner receiving ring are provided at the opening of the hole; the inner end face of the outer receiving ring is a frustum-shaped cone and its diameter decreases as it extends into the hole, and the inner end face of the outer receiving ring is matched and connected to the hole; the outer end face of the inner receiving ring is a frustum-shaped cone and is matched and fixed on the inner end face of the outer receiving ring, and the inner end face of the inner receiving ring is matched and fitted onto the outer port of the receiving cylinder.

[0013] Furthermore, the outer diameter of the baffle is not less than the maximum outer diameter of the inner ring; the outer end of the inner ring is provided with two fixed annular magnetic pieces embedded in the inner ring, the two fixed annular magnetic pieces are spaced apart and have opposite magnetic pole distributions facing outwards from the hole opening; the inner end of the baffle is provided with two movable annular magnetic pieces embedded in the baffle, the two movable annular magnetic pieces are spaced apart and have opposite magnetic pole distributions facing inwards from the hole opening; when the fixed annular magnetic pieces and the movable annular magnetic pieces attract each other, the inner end face of the baffle matches and fits against the outer end face of the inner ring.

[0014] Furthermore, the support is a cylinder or tube; a support block is fixedly connected between the upper end of the support and the lower end of the laser sleeve; both the upper and lower surfaces of the support block are concave arc surfaces, which are fixedly connected to the support and the laser sleeve respectively; a gap is left between the tail of the laser sleeve and the hole.

[0015] Furthermore, an inwardly protruding rubber inner retaining ring is fixed in the middle section of the inner wall of the laser sleeve.

[0016] Furthermore, the tail end of the laser sleeve extends to form an outer retaining ring with a thickness thinner than the laser sleeve and an inner wall flatter than the inner wall of the laser sleeve; the outer retaining ring is provided with multiple slits distributed along the axial direction of the laser sleeve to divide the outer retaining ring into multiple pieces; the outer retaining ring is also provided with a belt and buckle that can pull the outer retaining ring inward.

[0017] Furthermore, the inner diameter of the support sleeve is 0.4 cm to 1.2 cm larger than the outer diameter of the insertion rod.

[0018] By implementing the above technical solution, after measuring the planar position of the mine and the coordinates of each characteristic profile, holes are made on the wall opposite the mine to be laid out, with the hole axis coinciding with the centerline of the mine; a support cylinder is installed in the hole; when laying out the line, the insertion rod is inserted into the support cylinder; the laser pointer is turned on and continuously indicates; the workers do not need to repeatedly hang lines in the mine or make corrections, thus avoiding repetitive laying out work and increasing the efficiency of underground construction. Attached Figure Description

[0019] The specific structure of this application is given by the following figures and embodiments: Figure 1 This is a schematic diagram of the structure of the preferred embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the right-side view of the inner ring connecting the middle ring; Figure 3 yes Figure 1 A schematic diagram of the left side of the middle gear plate.

[0020] Legend: 1. Hole, 2. Support sleeve, 3. Insert rod, 4. Baffle, 5. Support, 6. Laser sleeve, 7. Laser pointer, 8. Adhesive layer, 9. Outer supporting ring, 10. Inner supporting ring, 11. Fixed ring magnetic sheet, 12. Moving ring magnetic sheet, 13. Support block, 14. Inner retaining ring, 15. Outer retaining ring. Detailed Implementation

[0021] This application is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this application and the actual situation.

[0022] Examples, such as Figures 1 to 3 As shown, the portable wire laying device for underground roadways includes a fixed end and a movable end; the fixed end includes a hole 1 opened in the wall and a support 2 fixedly installed in the hole 1; the movable end includes a rod 3, a baffle 4, a support 5, a laser sleeve 6, and a laser pointer 7; the rod 3 and the support 5 are coaxially fixed at both ends of the baffle 4; the rod 3 is inserted into the support 2, and the outer diameter of the baffle 4 is larger than the inner diameter of the support 2; the laser pointer 7, which can be inserted into the laser sleeve 6, is fixedly installed on the support 5 along with the laser sleeve 6.

[0023] After determining the planar location of the mine and measuring the coordinates of each characteristic profile, a hole 1 is made on the wall opposite the mine to be laid out, with the axis of hole 1 coinciding with the centerline of the mine. A support cylinder 2 is installed inside hole 1. When laying out lines, a rod 3 is inserted into the support cylinder 2. The laser pointer 7 is turned on and continuously indicates the direction. Workers do not need to repeatedly hang lines in the mine or make corrections, avoiding repetitive laying out work and increasing the efficiency of underground construction.

[0024] This application has a simple structure, avoids the need for a plumb line to determine the center, has high precision, and requires virtually no maintenance.

[0025] No repeated calibration is required; after each blast, there is no need to adjust the fixed end and the movable end; the laser will continue to indicate the center.

[0026] It reduces the labor intensity of underground workers and shortens their working hours.

[0027] Improve the production efficiency of the trolley and reduce subsequent maintenance work.

[0028] like Figures 1 to 3 As shown, the depth of hole 1 is 2 to 10 centimeters longer than the length of the support cylinder 2; the inner diameter of hole 1 is 1 to 4 centimeters larger than the outer diameter of support cylinder 2; and a gel layer 8 is filled between the inner wall of hole 1 and the outer wall of support cylinder 2.

[0029] After determining the planar position of the ore chamber and measuring the coordinates of each characteristic profile, drill hole 1 on the wall opposite the ore chamber that needs to be laid out. Then, inject filler glue into the gap between hole 1 and support cylinder 2 to stabilize support cylinder 2. When the insertion rod 3 is inserted, it will not shake and the axis will remain consistent with hole 1, so that the actual indicated position is consistent with the calculated position.

[0030] like Figures 1 to 3 As shown, an outer receiving ring 9 and an inner receiving ring 10 are provided at the opening of hole 1; the inner end face of the outer receiving ring 9 is a frustoconical surface and its diameter decreases as it extends into hole 1, and the inner end face of the outer receiving ring 9 is matched and connected to hole 1; the outer end face of the inner receiving ring 10 is a frustoconical surface and is matched and fixed on the inner end face of the outer receiving ring 9, and the inner end face of the inner receiving ring 10 is matched and sleeved on the outer port of the support cylinder 2.

[0031] Drill hole 1. First, install the frustoconical inner end face of the outer ring 9 at the opening of hole 1 to facilitate the filling of adhesive. After the adhesive is filled, clean the adhesive from the opening of hole 1 and install the inner ring 10. The outer end faces of the outer ring 9 and the inner ring 10 can be flush with the wall.

[0032] like Figures 1 to 3As shown, the outer diameter of the baffle 4 is not less than the maximum outer diameter of the receiving inner ring 10; the outer end of the receiving inner ring 10 is provided with two fixed annular magnetic pieces 11 embedded in the receiving inner ring 10, the two fixed annular magnetic pieces 11 are spaced apart and the magnetic poles facing outwards from the opening of the hole 1 are oppositely distributed; the inner end of the baffle 4 is provided with two movable annular magnetic pieces 12 embedded in the baffle 4, the two movable annular magnetic pieces 12 are spaced apart and the magnetic poles facing inwards from the opening of the hole 1 are oppositely distributed; when the fixed annular magnetic pieces 11 and the movable annular magnetic pieces 12 attract each other, the inner end face of the baffle 4 matches and adheres to the outer end face of the receiving inner ring 10.

[0033] After the insertion rod 3 is inserted into the support cylinder 2, it should be inserted until the inner end face of the baffle 4 is in close contact with the outer end face of the inner ring 10. Ensure that the insertion depth of the insertion rod 3 is consistent each time, and that the position indicated by the laser pointer 7 remains unchanged.

[0034] When the inner end face of the baffle 4 approaches the outer end face of the inner ring 10, the attraction between the moving annular magnetic sheet 12 and the fixed annular magnetic sheet 11 ensures that the support 5, the laser sleeve 6 and the laser pointer 7 will not rotate around the axis; and also ensures that the insertion rod 3 will not easily fall out of the support sleeve 2 due to explosion vibration, downward tilting angle or other reasons.

[0035] like Figures 1 to 3 As shown, the support 5 is a cylinder or tube; a support block 13 is fixedly connected between the upper end of the support 5 and the lower end of the laser sleeve 6; both the upper and lower surfaces of the support block 13 are concave arc surfaces, which are fixedly connected to the support 5 and the laser sleeve 6 respectively; a gap is left between the tail of the laser sleeve 6 and the hole 1.

[0036] The laser sleeve 6 provides a more stable and reliable fixation.

[0037] like Figures 1 to 3 As shown, an inwardly protruding rubber inner retaining ring 14 is fixed in the middle section of the inner wall of the laser sleeve 6.

[0038] The outer diameter of the laser pointer 7 is smaller than the inner diameter of the laser sleeve 6. When the laser pointer 7 is inserted into the middle section of the laser sleeve 6 and passes through the inner retaining ring 14, it will squeeze the inner retaining ring 14. Thus, the laser pointer 7 can be reliably fitted inside the laser sleeve 6.

[0039] like Figures 1 to 3 As shown, the tail of the laser sleeve 6 continues to extend to form an outer retaining ring 15 with a thickness thinner than the laser sleeve 6 and an inner wall flatter than the inner wall of the laser sleeve 6; the outer retaining ring 15 is provided with multiple slits distributed along the axial direction of the laser sleeve 6 to divide the outer retaining ring 15 into multiple pieces; the outer retaining ring 15 is also provided with a belt and buckle that can pull the outer retaining ring 15 inward.

[0040] During installation, the tail of the laser pointer 7 needs to extend beyond the outer retaining ring 15. The outer retaining ring 15 is then closed using a belt and buckle, securing it tightly to the tail of the laser pointer 7. The inner retaining ring 14 further secures the laser pointer 7.

[0041] like Figures 1 to 3 As shown, the inner diameter of the support sleeve 2 is 0.4 cm to 1.2 cm larger than the outer diameter of the insert rod 3.

[0042] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0043] The above technical features constitute the preferred embodiment of this application, which has strong adaptability and the best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A portable wire-laying device for underground roadways, characterized in that: The system includes a fixed end and a movable end. The fixed end includes a hole in the wall and a support sleeve fixedly installed inside the hole. The movable end includes a rod, a baffle plate, a support, a laser sleeve, and a laser pointer. The rod and support are coaxially fixed at both ends of the baffle plate. The rod is inserted into the support sleeve, and the outer diameter of the baffle plate is larger than the inner diameter of the support sleeve. The laser pointer, which can be inserted into the laser sleeve, is fixedly installed on the support along with the laser sleeve. An outer receiving ring and an inner receiving ring are provided at the opening of the hole, and the outer diameter of the baffle plate is not less than the maximum outer diameter of the inner receiving ring. The outer end of the inner receiving ring has two fixed annular magnetic plates embedded in it. Fixed annular magnetic sheets are spaced apart and have opposite magnetic poles facing outwards from the hole opening; two movable annular magnetic sheets are embedded in the inner end of the baffle, spaced apart and with opposite magnetic poles facing inwards from the hole opening; when the fixed and movable annular magnetic sheets attract each other, the inner end face of the baffle matches and fits against the outer end face of the receiving inner ring; the support is a cylinder or cylindrical tube; a support block is fixedly connected between the upper end of the support and the lower end of the laser sleeve; both the upper and lower surfaces of the support block are concave arc surfaces, which are fixedly connected to the support and the laser sleeve respectively; a gap is left between the tail of the laser sleeve and the hole.

2. The portable wire-laying device for underground roadways according to claim 1, characterized in that: The hole depth is 2 to 10 centimeters longer than the length of the support cylinder; the inner diameter of the hole is 1 to 4 centimeters larger than the outer diameter of the support cylinder; and a gelatinous layer is filled between the inner wall of the hole and the outer wall of the support cylinder.

3. The portable wire-laying device for underground roadways according to claim 2, characterized in that: The inner end face of the outer ring is a frustoconical surface and its diameter decreases as it extends into the hole. The inner end face of the outer ring matches and connects with the hole. The outer end face of the inner ring is a frustoconical surface and is matched and fixed on the inner end face of the outer ring. The inner end face of the inner ring matches and fits onto the outer port of the sleeve.

4. The portable wire-laying device for underground roadways according to claim 1, 2, or 3, characterized in that: The inner wall of the laser sleeve is fixed with an inwardly protruding rubber inner retaining ring in the middle section.

5. The portable wire-laying device for underground roadways according to claim 1, 2, or 3, characterized in that: The tail of the laser sleeve continues to extend to form an outer retaining ring with a thickness thinner than the laser sleeve and an inner wall flatter than the inner wall of the laser sleeve; the outer retaining ring has multiple slits distributed along the axial direction of the laser sleeve to divide the outer retaining ring into multiple pieces; the outer retaining ring also has a belt and buckle that can pull the outer retaining ring inward.

6. The portable wire-laying device for underground roadways according to claim 1, 2, or 3, characterized in that: The inner diameter of the socket is 0.4 cm to 1.2 cm larger than the outer diameter of the insert rod.

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