Laser reflection hammer ball for underground traverse point surveying and mapping
By integrating a laser reflective hammer ball with reflective markings into underground wire point mapping, the problem of manual support of reflective sheets is solved, efficient automatic centering of the mapping process is achieved, and the overall efficiency of underground coal mine mapping is improved.
Patent Information
- Application Number
- CN202422967507.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-03
AI Technical Summary
During underground surveying and mapping operations in coal mines, the reflective sheets on the ropes are affected by wind currents and need to be manually held in place, resulting in low surveying and mapping efficiency. In addition, the total station needs to be re-centered and leveled when the station is moved, affecting overall efficiency.
A laser reflective hammer ball is designed, which integrates X-axis and Y-axis reflective cursors and flat sections on the surface of the cone ball to form multiple reflective points, simplify the installation of reflective sheets, and can be directly aligned and leveled using a total station.
It reduces manual operation steps, improves surveying efficiency, ensures that the hammer ball can be used directly after relocation, and simplifies the surveying process.
Smart Images

Figure CN223361451U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of underground surveying and mapping equipment, and particularly relates to a laser reflection hammer ball used for underground conductor point surveying and mapping. Background Art
[0002] An electronic total station is a measuring instrument that can simultaneously measure angles (horizontal angles, vertical angles) and distances (slant distances, horizontal distances, elevation differences). It is composed of mechanical, optical, and electronic components and is widely used in control measurements, detailed measurements, construction layout, deformation observation, coal mine measurements, and other measurement tasks.
[0003] When the total station uses laser ranging, a beam of laser is emitted from the total station, which hits the reflector of the total station at the target point and then returns to the machine lens to complete the ranging process. Finally, the measured distance data is calculated by the electronic components of the total station and displayed on the electronic screen.
[0004] During underground coal mine surveying, when measuring the distance between the front and rear sight guide points, a reflector needs to be passed through the front and rear sight guide point lines in parallel, and a hammer ball or stone is hung under the lines to allow the lines to hang freely so that they are in the same vertical plane as the roadway roof guide point, and the reflector plane is perpendicular to the laser lens. Then the total station laser is emitted to the center of the reflector crosshairs, and a tape measure is used to measure the distance from the top plate guide point to the horizontal line of the reflector crosshairs as the visual height of the point. A tape measure is used to measure the distance from the top plate guide point at the place where the total station is set up to the horizontal line on the total station machine as the instrument height of the point. After completing these data measurements, the surveying of the station is completed. In the actual process, due to the influence of wind flow in the roadway, the reflector hanging on the line is in a rotating state and needs to be manually held back. Moreover, the hammer ball on the instrument is removed when the station is moved. At the next station, it is necessary to continue to connect the guide point line and re-center and level the total station, which affects the overall surveying efficiency.
[0005] To this end, we propose a laser reflective hammer ball for underground wire point mapping. Utility Model Content
[0006] The purpose of the utility model is to provide a laser reflection hammer ball for underground conductor point mapping, so as to solve the above problems existing in the prior art.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A laser reflective hammer ball for underground conductor point mapping comprises a cone ball; a circle of X-axis reflective cursor lines is provided in the middle of the cone ball, and a plurality of Y-axis reflective cursor lines are vertically provided at equal distances around the circumference of the cone ball on the surface of the cone ball.
[0009] Furthermore, a screw sleeve is integrally formed on the top of the cone ball, and a suspension rope mounting nut for mounting a suspension rope is screwed onto the screw sleeve.
[0010] Furthermore, the cone sphere is designed as a cylindrical structure, and another circle of arc-shaped convex ring is integrally formed in the middle of the cone sphere at a position corresponding to the X-axis reflective cursor line.
[0011] Furthermore, a plurality of plane sections are provided on the surface of the cone sphere and at equal distances around the cone sphere at the position of the arc-shaped convex ring, and the plane sections are designed with a smooth mirror structure.
[0012] Furthermore, the number of the planar sections is consistent with the number of the Y-axis reflective lines, and the center point of the planar section overlaps with the intersection of the Y-axis reflective lines and the X-axis reflective lines.
[0013] Furthermore, the X-axis reflective markings are black lines, and the Y-axis reflective markings are all composed of solid-color reflective patches with a width of 1-1.5 mm. The colors of adjacent Y-axis reflective markings are different. Among them, the colors of the Y-axis reflective markings are preferably seven colors: red, orange, yellow, green, cyan, blue, and purple.
[0014] Furthermore, the number of the Y-axis reflective lines is any one of 12, 24, and 36.
[0015] Furthermore, the screw sleeve is located in the middle of the top of the cone ball, and a notch is laterally provided in the middle of the screw sleeve, and the notch extends toward the inside of the cone ball to form a wedge groove.
[0016] Furthermore, a metal wedge block for connecting the suspension rope is clamped in the wedge groove, and a reinforcement pin is integrally formed on the metal wedge block at the notch position corresponding to the screw sleeve; a wire hole for the suspension rope to pass through is provided in the middle position of the suspension rope mounting nut.
[0017] Beneficial effects:
[0018] The utility model uses a cone sphere as a carrier and utilizes the cooperation of an X-axis reflective cursor line, a plurality of Y-axis reflective cursor lines and a flat section to integrate a reflective sheet that traditionally needs to be installed separately into the surface of the cone sphere. The flat section and the Y-axis reflective cursor lines are evenly distributed around the circumference of the cone sphere, thereby forming a plurality of evenly distributed reflective points around the far circumference of the cone sphere, so that the cone sphere has the function of a reflective sheet and no additional reflective sheet needs to be installed. In actual surveying and mapping, the hammer ball that has been centered can continue to be used as a backsight point after the station is moved and is directly measured by the total station. When the total station is moved to this station, the reflective hammer ball at this point is directly used for centering and leveling, which can effectively reduce the operating links of the surveyor and improve the surveying and mapping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1This is a schematic diagram of the structure of a laser reflective hammer ball for underground conductor point mapping in the utility model;
[0020] Figure 2 This is a partially enlarged structural diagram of a laser reflective hammer ball for underground conductor point mapping in the utility model;
[0021] Figure 3 The utility model is a schematic diagram of a semi-sectional structure of a laser reflection hammer ball used for underground conductor point mapping.
[0022] In the figure: 1. Cone ball; 101. Screw sleeve; 102. Notch; 103. Wedge groove; 2. Flat section; 3. Reflective mark on Y axis; 4. Reflective mark on X axis; 5. Suspension rope mounting nut; 501. Wire hole; 6. Metal wedge; 7. Reinforcement pin; 8. Suspension rope. DETAILED DESCRIPTION
[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.
[0024] Example:
[0025] In the current underground surveying and mapping projects of mining, when measuring the distance between the front and rear sight guide points, a reflector needs to be installed separately on the suspension rope of the guide point. The reflector installed on the suspension rope lacks autonomous positioning means and is affected by the underground airflow. In the actual surveying and mapping process, the reflector needs to be manually supported. Moreover, during the continuous surveying and mapping, the center reflector on the instrument needs to be removed. At the next station, it is necessary to continue to connect the guide point rope and re-center and level the total station. The whole operation is relatively troublesome, which seriously affects the overall surveying and mapping efficiency. Therefore, we propose a new type of laser reflective hammer ball for underground guide point mapping that can combine the reflector function with the guide point cone ball 1. The specific solution is as follows:
[0026] like Figure 1 As shown, this embodiment provides a laser reflective hammer ball for underground wire point mapping, including a cone ball 1, which adopts a cylindrical structure design as a whole; a circle of X-axis reflective cursor lines 4 is provided in the middle of the cone ball 1, and a plurality of Y-axis reflective cursor lines 3 are vertically provided at equal distances on the surface of the cone ball 1 around the circumference of the cone ball 1. The Y-axis reflective cursor lines 3 and the X-axis reflective cursor lines 4 are perpendicular to each other, and their intersection position is the laser reflection point.
[0027] In order to make the laser be reflected back smoothly through the reflection point, Figure 1-2 As shown, another circle of arc-shaped convex ring is integrally formed in the middle of the cone sphere 1 at a position corresponding to the X-axis reflective cursor line 4, and a number of flat sections 2 are provided on the surface of the cone sphere 1 at the position of the arc-shaped convex ring and at equal distances around the cone sphere 1. The flat sections 2 adopt a smooth mirror structure design. At the same time, the number of flat sections 2 is consistent with the number of Y-axis reflective cursor lines 3, and the center point of the flat section 2 overlaps with the intersection of the Y-axis reflective cursor line 3 and the X-axis reflective cursor line 4.
[0028] In order to facilitate the connection between the cone ball 1 and the suspension rope 8 of the conductor point, as shown in FIG. Figure 1 、 Figure 3 As shown, a screw sleeve 101 is integrally formed at the top of the cone ball 1, and the screw sleeve 101 is located in the middle position of the top of the cone ball 1, and a rope mounting nut 5 for mounting a suspension rope 8 is screwed on the screw sleeve 101, wherein a notch 102 is also provided in the middle of the screw sleeve 101, and the notch 102 extends toward the inside of the cone ball 1 to form a wedge groove 103, and a metal wedge 6 for connecting the suspension rope 8 is clamped in the wedge groove 103, and a reinforcing pin 7 is integrally formed on the metal wedge 6 at a position corresponding to the notch 102 on the screw sleeve 101 to compensate for the influence of the notch 102 on the strength of the screw sleeve 101; a wire hole 501 for the suspension rope 8 to pass through is provided in the middle position of the rope mounting nut 5.
[0029] In order to facilitate surveying and mapping personnel to capture the position of the laser reflection point more clearly when using the total station for measurement and centering, the X-axis reflective marker 4 is designed with a black line, and several Y-axis reflective markers 3 are all composed of solid-color reflective patches with a width of 1-1.5 mm, and the colors of adjacent Y-axis reflective markers 3 are different. At the same time, the colors of the Y-axis reflective marker 3 are preferably seven colors: red, orange, yellow, green, cyan, blue, and purple.
[0030] In order to more conveniently capture the position of the reflection point from the cone sphere 1 and minimize the possibility of manual assistance, the number of the Y-axis reflective marker lines 3 includes but is not limited to 12, 24, and 36.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A laser reflective hammer ball for underground conductor point mapping, characterized in that: It comprises a cone ball (1); a circle of X-axis reflective markings (4) is provided in the middle of the cone ball (1); a plurality of Y-axis reflective markings (3) are provided vertically and at equal distances around the circumference of the cone ball (1) on the surface of the cone ball (1); A screw sleeve (101) is integrally formed on the top end of the cone ball (1), and a suspension rope mounting nut (5) for mounting a suspension rope (8) is screwed onto the screw sleeve (101).
2. The laser reflective hammer ball for underground wire point mapping according to claim 1, characterized in that: The cone ball (1) is designed as a cylindrical structure as a whole, and a circle of arc-shaped convex ring is integrally formed in the middle of the cone ball (1) at a position corresponding to the X-axis reflective cursor line (4).
3. The laser reflective hammer ball for underground wire point mapping according to claim 2, characterized in that: A plurality of plane sections (2) are provided on the surface of the cone sphere (1) at equal distances around the cone sphere (1) and at positions of the arc-shaped convex ring. The plane sections (2) are designed with a smooth mirror structure.
4. The laser reflective hammer ball for underground conductor point mapping according to claim 3, characterized in that: The number of the plane sections (2) is consistent with the number of the Y-axis reflective lines (3), and the center point of the plane section (2) overlaps with the intersection of the Y-axis reflective lines (3) and the X-axis reflective lines (4).
5. The laser reflective hammer ball for underground wire point mapping according to claim 4, characterized in that: The X-axis reflective marking line (4) is a black line, and the plurality of Y-axis reflective marking lines (3) are all composed of pure color reflective patches with a width of 1-1.5 mm, and the colors of adjacent Y-axis reflective marking lines (3) are different.
6. The laser reflective hammer ball for underground conductor point mapping according to claim 5, characterized in that: The number of the Y-axis reflective lines (3) is any one of 12, 24, and 36.
7. The laser reflective hammer ball for underground conductor point mapping according to claim 1, characterized in that: The screw sleeve (101) is located in the middle of the top of the cone ball (1), and a notch (102) is also provided in the middle of the screw sleeve (101) in the transverse direction. The notch (102) extends toward the inside of the cone ball (1) to form a wedge groove (103).
8. The laser reflective hammer ball for underground wire point mapping according to claim 7, characterized in that: A metal wedge (6) for connecting a suspension rope (8) is clamped in the wedge groove (103), and a reinforcing pin (7) is integrally formed on the metal wedge (6) at a position corresponding to the notch (102) on the screw sleeve (101); a wire hole (501) for the suspension rope (8) to pass through is provided in the middle position of the suspension rope mounting nut (5).