Auxiliary device for measuring and drawing line in pit mining mine

By designing retractable and adjustable components and angle measuring components, the problem of existing devices being unable to adapt to roadways with different slopes has been solved, achieving high-precision and efficient waistline drawing, and enhancing the stability and ease of operation of the device.

CN224089015UActive Publication Date: 2026-04-07TONGLING ZHONGDU MINING CONSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing surveying and marking auxiliary devices for pit mines cannot adapt to roadways with different slopes, resulting in the need for additional manual intervention when drawing waistlines, which increases workload and is prone to errors, affecting mining efficiency and safety.

Method used

The device employs retractable and adjustable components and angle measuring components. The width and angle of the device are adjusted by adjusting the threaded connection of the adjusting sleeve and adjusting rod. The stability is enhanced by the combination of positioning blocks and spikes. A level bubble meter is used to ensure that the device is level. Clamps fix the angle of the marking rod, and the bracket provides additional support.

Benefits of technology

It improves the accuracy and efficiency of line drawing, enhances the stability and ease of operation of the device, adapts to the needs of waistline drawing in roadways with different slopes, and ensures the accuracy of the drawn centerline and waistline.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mine measurement equipment, in particular to a pit mining mine measurement line drawing auxiliary device which comprises a main frame body. A telescopic adjusting part is arranged in the main frame body and comprises an adjusting sleeve located in the main frame body and an adjusting rod penetrating through the main frame body; the main frame body is also connected with an angle measuring part; the main frame body is further movably connected with a line drawing rod. Through threaded connection of the adjusting sleeve and the adjusting rod, the adjusting sleeve is rotated to enable the adjusting rod to stretch out or retract, and the overall width of the device is adjusted to adapt to roadways with different widths. The design of the positioning blocks and the spine parts enhances the abutting stability of the device and the side wall of the roadway. When the device is suitable for drawing lines in roadways with different widths, as the telescopic adjusting component adopts threaded connection of the adjusting sleeve and the adjusting rod, the telescopic adjusting component is positioned through the bolt after being adjusted to the required width, the device can be firmly propped against the side wall of the roadway in the line drawing process, and the stability and the reliability of the device are enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mine surveying equipment technical field more specifically, especially, relates to a pit mining surveying line drawing auxiliary device. BACKGROUND

[0002] The pit mining surveying line drawing auxiliary device has important application value in mine exploitation. It is mainly used in underground mine roadway construction, support engineering and mine geological surveying and other links, can help mine technical personnel to draw roadway center line and waist line quickly and accurately, thereby providing strong technical support for mine safety production and efficient exploitation.

[0003] The patent with the publication number CN222521299U discloses a pit mining surveying line drawing auxiliary device, which adjusts the width of the spring telescopic rod to adapt to the size of the roadway, and uses a horizontal bubble instrument to ensure the device level, and ensures the accuracy of the center line drawing. The waist line drawing accessory is matched with the clamping groove on the line drawing main rod through the clamping piece, and is quickly installed and disassembled. When drawing the waist line, the direction and length of the line drawing are determined by rotating the scale, the horizontal bubble instrument is kept horizontal by holding the handle, and the waist line is drawn along the triangular line drawing ruler. The above-mentioned existing pit mining surveying line drawing auxiliary device solves the problems of part of the line drawing being not straight, a small amount of deviation and non-standardization, but still has some limitations in actual application. For example, the existing device cannot meet the waist line drawing requirement of the roadway with a certain slope when drawing the waist line. In underground mine exploitation, the roadway often needs to be designed with different slopes according to the geological conditions and exploitation requirements, and the existing device cannot adapt to the change of the slope, so that additional manual intervention is needed when drawing the waist line of the slope roadway, which not only increases the workload, but also easily causes errors, affecting the efficiency and safety of mine exploitation.

[0004] Therefore, it is particularly necessary to develop a surveying line drawing auxiliary device that can adapt to different slope roadways and improve line drawing precision and efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pit mining surveying line drawing auxiliary device.

[0006] A pit mining surveying line drawing auxiliary device, comprising a main frame body,

[0007] The main frame body is internally arranged with a telescopic adjusting component, the telescopic adjusting component comprises an adjusting sleeve located in the main frame body and an adjusting rod penetrating through the main frame body.

[0008] The main frame body is further connected with an angle measuring component, and the main frame body is further movably connected with a line drawing rod.

[0009] Furthermore, the main frame is a frame structure with four sides, and two limiting plates are installed inside it. An adjusting sleeve is arranged between the two limiting plates. The limiting plate has a first through hole for the adjusting rod to pass through.

[0010] The main frame has second through holes on its left and right sides, for the adjustment rod to pass through.

[0011] Furthermore, two adjusting rods are provided, which are threaded to both ends of the adjusting sleeve respectively; the free ends of the two adjusting rods are also fixed with positioning blocks for abutting against the sidewall of the tunnel.

[0012] Furthermore, the outer side of the positioning block is also provided with conical spikes to enhance the contact with the sidewall of the tunnel.

[0013] Furthermore, the adjusting rod has several third through holes, and correspondingly, the outer side of the main frame has several fourth through holes. When the adjusting sleeve is rotated to extend the adjusting rod by a preset distance, one of the fourth through holes coincides with one of the third through holes, and a bolt is used for positioning.

[0014] Furthermore, the fourth through hole is a threaded hole.

[0015] Furthermore, the upper surface of the main frame is also provided with a first scale line area and a horizontal bubble meter.

[0016] Furthermore, the angle measuring component is fixedly connected to one end of the rear side of the main frame;

[0017] A drawing rod is rotatably connected to the rear side of the main frame, and the pivot of the drawing rod passes through the center of the angle measuring component.

[0018] Furthermore, the drawing rod is provided with a second scale line area.

[0019] Furthermore, a first fixing hole and a second fixing hole are provided on the rear side of the main frame; the first fixing hole corresponds to the center of the angle measuring component.

[0020] Furthermore, a locking device is also provided to engage with the rear side of the main frame;

[0021] When the drawing rod is parallel to the main frame, the clip engages the drawing rod with the main frame;

[0022] When the line drawing rod is inclined to the main frame, the clip moves along the main frame to the position where the top of the clip abuts against the lower end face of the line drawing rod.

[0023] Furthermore, it also includes a bracket connected to two symmetrical fourth through holes;

[0024] The bracket includes a handle, a connector, and a support rod rotatably connected to the connector. The ends of the two support rods are provided with a fifth through hole for corresponding connection with the fourth through hole.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This mining surveying and marking auxiliary device can adapt to the needs of marking waistlines in roadways with different slopes, improving the accuracy and efficiency of marking, and enhancing the stability and ease of operation of the device. Through the threaded connection between the adjusting sleeve and the adjusting rod, rotating the adjusting sleeve extends or retracts the adjusting rod, thereby adjusting the overall width of the device to accommodate roadways of different widths. The design of the positioning block and the spike further enhances the stability of the device against the roadway sidewall. When marking lines in roadways of different widths, the threaded connection between the telescopic adjusting component and the adjusting sleeve and adjusting rod allows for positioning with bolts after adjustment to the required width, ensuring that the device firmly abuts against the roadway sidewall during the marking process, thus enhancing the stability and reliability of the device.

[0027] The angle measuring component and rotatable drawing rod allow for adjustment of the drawing rod's angle to accommodate the needs of drawing lane lines on varying slopes, thus improving the accuracy and efficiency of line drawing. A locking mechanism helps to fix the angle of the drawing rod, preventing it from moving during the drawing process.

[0028] A bubble level is installed on the main frame to ensure that the device is in a horizontal position, thus ensuring the accuracy of the drawn center line and waistline. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the overall structure of the auxiliary device for surveying and marking in a pit mine, as shown in the embodiment.

[0031] Figure 2 This is an exploded schematic diagram of the auxiliary device for surveying and marking in a pit mine, as described in the embodiment.

[0032] Figure 3 This is a schematic diagram of the outward extension width of the retractable adjustable component in the embodiment.

[0033] Figure 4 This is a schematic diagram of the bracket in the embodiment.

[0034] Figure 5 This is a schematic diagram of the card in the embodiment.

[0035] Figure 6 This is a schematic diagram of the line-drawing rod after its angle has been adjusted in the mine surveying and line-drawing auxiliary device of the embodiment.

[0036] In the diagram: 1. Main frame; 11. Limiting plate; 111. First through hole; 12. Second through hole; 13. Fourth through hole; 14. First scale line area; 15. Horizontal bubble meter; 16. First fixing hole; 17. Second fixing hole; 18. Fixing plate;

[0037] 2. Adjusting sleeve;

[0038] 3. Adjusting rod; 31. Third through hole;

[0039] 4. Angle measuring component; 41. Center hole; 42. Side hole; 43. Angle scale lines;

[0040] 5. Marking rod; 51. Connecting hole; 52. Second scale line area; 53. Viewing window; 54. Indicator tip;

[0041] 6. Positioning block; 7. Spike; 8. Bolt; 9. Clamp;

[0042] 10. Bracket; 101. Handle; 102. Connector; 103. Support rod; 1031. Fifth through hole. Detailed Implementation

[0043] 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 protection scope of the present utility model.

[0044] like Figures 1-5 As shown, this embodiment provides a surveying and marking auxiliary device for pit mining, including a main frame 1. An adjustable telescopic component is arranged inside the main frame 1, including an adjusting sleeve 2 located inside the main frame 1 and an adjusting rod 3 penetrating the main frame 1. An angle measuring component 4 is also connected to the main frame 1, and a marking rod 5 is movably connected to the main frame 1.

[0045] In this embodiment, the main frame 1 is a frame structure with four sides, and two limiting plates 11 are installed inside it. An adjusting sleeve 2 is arranged between the two limiting plates 11. The limiting plates 11 have a first through hole 111 for the adjusting rod 3 to pass through. The left and right sides of the main frame 1 each have a second through hole 12 for the adjusting rod 3 to pass through. The two limiting plates 11 are used to limit the adjusting sleeve 2 to prevent it from swaying left and right during adjustment, and to ensure that the length of the adjusting rod extending to the left and right sides of the main frame 1 is the same.

[0046] Specifically, the adjustable component includes an adjusting sleeve 2 and two adjusting rods 3. The outer walls of the adjusting rods 3 are threaded, and the threads of the two adjusting rods 3 are in opposite directions. The two adjusting rods 3 are threaded to both ends of the adjusting sleeve 2. Positioning blocks 6 are fixed to the free ends of the two adjusting rods 3 for contact with the tunnel sidewall. Rotating the adjusting sleeve 2 allows the two adjusting rods 3 to extend outwards synchronously. Conical spikes 7 are also provided on the outer side of the positioning blocks 6 to enhance contact with the tunnel sidewall.

[0047] More specifically, the adjusting rod 3 has several third through holes 31, and correspondingly, the outer side of the main frame 1 has several fourth through holes 13, which are threaded holes. When the adjusting sleeve 2 is rotated to extend the adjusting rod 3 by a preset distance, one fourth through hole 13 coincides with one of the third through holes 31, and is positioned by bolts 8 passing through it. At this time, the length of the main frame 1 is extended, making the device adaptable to marking lines in tunnels of different widths. Compared with the adjusting rod connected by a spring in the prior art, the adjusting method of the adjusting sleeve 2 and the adjusting rod 3 in this device makes it easier to adjust the length, and at the same time, it can be positioned by bolts, so that the device can firmly abut against the tunnel sidewall during the marking process.

[0048] In this embodiment, a first scale line area 14 and a level bubble meter 15 are also provided on the upper surface of the main frame 1. The first scale line area 14 is located on the upper surface of the rear side of the main frame 1. Two level bubble meters 15 are provided, arranged symmetrically about the center line of the main frame 1. The provision of two level bubble meters 15 on the main frame 1, arranged symmetrically about the center line of the main frame 1, enables more accurate determination of whether the device is level, thereby improving the accuracy of line drawing.

[0049] To further maintain the stability of the device, a fixing plate 18 is provided on the lower front side of the main frame 1. The fixing plate 18 has holes and can be fixed to the side wall of the tunnel with anchors, which can maintain the stability of the device during the line drawing process and make the line drawing operation more convenient.

[0050] In this embodiment, an angle measuring component 4 is fixedly connected to one end of the rear side of the main frame 1. A drawing rod 5 is also rotatably connected to the rear side of the main frame 1, and the pivot of the drawing rod 5 passes through the center of the angle measuring component 4.

[0051] Specifically, the rear side of the main frame 1 has a first fixing hole 16 and a second fixing hole 17; the first fixing hole 16 corresponds to the center of the angle measuring component 4. The angle measuring component 4 has a center hole 41 and a side hole 42, wherein the center hole 41 is located within its circular hole and coincides with the first fixing hole 16, and the side hole 41 coincides with the second fixing hole 17. The second fixing hole 17 is located to the right of the first fixing hole 16, and the angle measuring component 4 is fixed to the main frame 1 through the first fixing hole 16 and the second fixing hole 17. Angle scale lines 43 are arranged on the outer periphery of the angle measuring component 4.

[0052] The end of the line-drawing rod 5 has a connecting hole 51, which coincides with the center hole 41 of the angle measuring component 4 and the first fixing hole 16 of the main frame 1. A bolt is used to pass through the connecting hole of the line-drawing rod 5, the center hole 41 of the angle measuring component 4, and the first fixing hole 16 of the main frame 1. Without tightening, the line-drawing rod 5 can be rotatably connected to the main frame 1. Simultaneously, the arrangement of the second fixing hole 17 does not affect the fixation of the angle measuring component 4. When the line-drawing rod 5 is adjusted to the desired angle, the bolt is tightened. The side of the line-drawing rod 5 has a second scale line area 52. For example... Figure 2 and Figure 6 As shown, in order to facilitate the observation of the angle on the angle measuring component 4, a viewing window 53 is provided on the drawing rod 5, and an indicator tip 54 is arranged in the viewing window 53. When the indicator tip 54 points to a certain scale of the angle scale line 43 in the angle measuring component 3, the angle value can be read easily and accurately, thus facilitating the drawing of the waistline with slope.

[0053] Furthermore, a clip 9 is provided on the rear side of the main frame 1, which can clip the drawing rod 5 onto the rear side of the main frame 1. The clip 5 is a slot shape with an opening at the rear, and the edge of the opening is provided with a retaining edge.

[0054] When the line drawing rod 5 is parallel to the main frame 1, the clip 9 engages the line drawing rod 5 with the main frame 1; when the line drawing rod 5 is laid out at an angle to the main frame 1, that is, when a sloping waistline needs to be drawn, the clip 9 moves along the main frame 1 to a position where the top of the clip 9 abuts against the lower end of the line drawing rod 5, which can also prevent the line drawing rod 5 from moving again.

[0055] In this embodiment, a bracket 10 is also included, which is connected to two symmetrical fourth through holes 13. The bracket 10 includes a handle 101, a connector 102, and support rods 103 rotatably connected to the connector 102. The ends of the two support rods 103 are provided with fifth through holes 1031 for corresponding connection with the fourth through holes 13. Connecting rings are provided at the ends of the support rods 103 and are sleeved on the connector 102. The connector 102 includes upper and lower connecting pieces, a connecting shaft and a connecting block located between the two connecting pieces, and a handle 101 is fixedly connected to the end of the connecting section. The bracket 10, connected to the fourth through holes of the main frame, provides support for the entire device, making the device more stable during use, especially when drawing waistlines, effectively preventing device wobbling and improving line drawing accuracy. The handle 101 of the bracket 10 allows the operator to more easily adjust the position and angle of the device, enabling the operator to quickly move the device within the tunnel to find a suitable position for line drawing. When drawing the waistline, the bracket 10 can serve as an auxiliary support point, helping the operator to better control the angle and position of the drawing rod 5. With the support of the bracket 10, the operator can hold the drawing rod more stably, ensuring the straightness and accuracy of the drawn line.

[0056] The mining surveying and marking auxiliary device provided in this embodiment adjusts the overall width of the device to accommodate tunnels of different widths by rotating the adjusting sleeve 2 and the adjusting rod 3 through a threaded connection between the adjusting sleeve 2 and the adjusting rod 3. The design of the positioning block 6 and the spike 7 further enhances the contact stability between the device and the tunnel sidewall.

[0057] A level bubble level 15 is installed on the main frame 1 to determine whether the device is in a horizontal state, ensuring the accuracy of the drawn center line and waistline.

[0058] The angle measuring component 4 and the rotatable drawing rod 5 allow for adjustment of the drawing rod's angle to accommodate the needs of drawing lane lines on different slopes, thus improving the accuracy and efficiency of line drawing. The clamping component 9 helps to fix the angle of the drawing rod 5, preventing it from moving during the drawing process.

[0059] When used for marking lines in roadways of different widths, the telescopic adjustment component uses a threaded connection between the adjusting sleeve 2 and the adjusting rod 3. After adjustment to the required width, it is positioned by bolt 8, ensuring that the device can firmly abut against the sidewall of the roadway during the marking process, thus enhancing the stability and reliability of the device.

[0060] The surveying and marking auxiliary device for pit mines provided in this embodiment can adapt to the requirements of drawing waist lines in roadways with different slopes, improve the accuracy and efficiency of marking, and enhance the stability and ease of operation of the device.

[0061] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A surveying and marking auxiliary device for pit mining, characterized in that, Including the main frame (1); The main frame (1) is provided with a telescopic adjustment component, which includes an adjustment sleeve (2) located inside the main frame (1) and an adjustment rod (3) passing through the main frame (1). The main frame (1) is also connected to an angle measuring component (4); the main frame (1) is also movably connected to a drawing rod (5).

2. The auxiliary device for surveying and marking in pit mining according to claim 1, characterized in that, The main frame (1) is a frame structure with four sides, and two limiting plates (11) are installed inside it. An adjusting sleeve (2) is arranged between the two limiting plates (11). The limiting plate (11) has a first through hole for the adjusting rod (3) to pass through. The main frame (1) has a second through hole (12) on its left and right sides, which is used to pass through the adjusting rod (3).

3. The auxiliary device for surveying and marking in pit mining according to claim 2, characterized in that, Two adjusting rods (3) are provided, which are threaded to both ends of the adjusting sleeve (2); the free ends of the two adjusting rods (3) are also fixed with positioning blocks (6) for abutting against the side wall of the roadway.

4. The auxiliary device for surveying and marking in pit mining according to claim 3, characterized in that, The outer side of the positioning block (6) is also provided with conical spikes (7).

5. The auxiliary device for surveying and marking in pit mining according to claim 4, characterized in that, The adjusting rod (3) has several third through holes (31), and correspondingly, the outer side of the main frame (1) has several fourth through holes (13). When the adjusting sleeve (2) is rotated to extend the adjusting rod (3) by a preset distance, one of the fourth through holes (13) coincides with one of the third through holes (31), and is positioned by bolts (8) passing through it; the fourth through hole (13) is a threaded hole.

6. The auxiliary device for surveying and marking in pit mining according to claim 5, characterized in that, The upper surface of the main frame (1) is also provided with a first scale line area (14) and a horizontal bubble meter (15).

7. The auxiliary device for surveying and marking in pit mining according to claim 6, characterized in that, The angle measuring component (4) is fixedly connected to one end of the rear side of the main frame (1). The rear side of the main frame (1) is also rotatably connected to a drawing rod (5), the axis of rotation of the drawing rod (5) passes through the center of the angle measuring component (4); the drawing rod (5) is provided with a second scale line area (52).

8. The auxiliary device for surveying and marking in pit mining according to claim 7, characterized in that... The rear side of the main frame (1) is provided with a first fixing hole (16) and a second fixing hole (17); the first fixing hole (16) corresponds to the center of the angle measuring component (4).

9. The auxiliary device for surveying and marking in pit mining according to claim 8, characterized in that, It is also equipped with a clip (9) that is snapped onto the rear side of the main frame (1); When the drawing rod (5) is parallel to the main frame (1), the clip (9) engages the drawing rod (5) with the main frame (1); When the line drawing rod (5) is laid out at an angle to the main frame (1), the clip (9) moves along the main frame (1) to the position where the top of the clip (9) abuts against the lower end face of the line drawing rod (5).

10. The auxiliary device for surveying and marking in pit mining according to claim 9, characterized in that, It also includes a bracket (10) connected to two symmetrical fourth through holes (13); The bracket (10) includes a handle (101), a connector (102), and a support rod (103) rotatably connected to the connector (102). The ends of the two support rods (103) are provided with a fifth through hole (1031) for corresponding connection with the fourth through hole (13).

Citation Information

Patent Citations

  • Auxiliary device for measuring and drawing line in pit mining mine

    CN222521299U