Fixing device for measuring point of total station in roadway with high wind speed

Abstract

The utility model discloses a fixing device for measuring points of a total station in a roadway with high wind speed, which comprises a roadway top fixing pipe, a rope fixing column and a suspension rope, the upper end of the suspension rope sequentially penetrates through a penetrating hole and a groove of the rope fixing column and then is bound, and a plumb bob is suspended at the lower end of the suspension rope. The plumb bob is arranged close to the center of the roadway, and the total station is placed under the plumb bob; the wind shielding shell is of a big-end-down cylindrical structure, the upper end of the wind shielding shell sleeves and is fixed to the lower end of the rope fixing column, and the lower end of the wind shielding shell extends downwards and completely surrounds the suspension rope and the plumb bob, so that the suspension rope and the plumb bob are prevented from swinging in a roadway with high wind speed, and errors of a measuring point of the total station due to position change of the plumb bob are avoided; according to the utility model, the wind shielding shell is arranged, so that the plumb bob and the suspension rope are completely surrounded, the deviation of a measuring point of the total station due to the swinging of the plumb bob in a roadway with a relatively high wind speed is avoided, and further the communication of the roadway is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of total station peripherals in coal mines, and in particular relates to a fixing device for total station measuring points in roadways with high wind speeds. Background Technology

[0002] A total station is a high-tech surveying instrument integrating optics, mechanics, and electronics. It emits electromagnetic waves towards a target object, which then reflects these waves and receives them. The distance is calculated by determining the transmission time of the electromagnetic waves. There are two methods: direct pulse ranging and indirect phase ranging. In mine exploration and development, total stations are used to measure the location, shape, and volume of ore bodies; monitor mine deformation and displacement; and ensure safe mine operation.

[0003] When conducting measurements underground in coal mines, current technology involves using wooden wedges to fix a plumb bob at the top of the tunnel. However, wooden wedges are prone to corrosion, damage, and instability. Furthermore, the skill levels of coal mine workers vary, and some workers are unaware of the function of these wooden wedges and plumb bobs, often striking or pulling them downwards, causing the plumb bob's position to change. When a total station needs to measure at three points, this causes the total station's position to shift. In addition, the high wind speed in the tunnel causes the plumb bob to swing within the tunnel, resulting in poor measurement accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a fixing device for total station measuring points in roadways with high wind speeds, in order to solve the problems of frequent offset of total station measuring points and poor measurement accuracy.

[0005] This utility model adopts the following technical solution: a fixing device for total station measuring points in roadways with high wind speeds, comprising:

[0006] The tunnel roof fixing pipe is installed vertically, with its upper end fixed to the lower end of the anchor rod or anchor cable that has been anchored to the tunnel roof.

[0007] The rope fixing post is set vertically. Its upper end is threaded to the lower end of the fixing pipe at the top of the roadway. Its lower end passes through the anchor net and extends downward. A groove is opened horizontally at the lower end of the rope fixing post. A through hole is opened from bottom to top at the lower end of the rope fixing post. The through hole and the groove are connected to each other.

[0008] The suspension rope is tied after its upper end passes through the through hole and groove of the rope fixing post. A plumb bob is suspended at its lower end. The plumb bob is set close to the center of the tunnel and is used to place the total station directly below it.

[0009] The windproof shell is a cylindrical structure with a small upper end and a large lower end, the upper end of which is sleeved and fixed at the lower end of the rope fixing column, and the lower end of which extends downward and completely encloses the hanging rope and the plummet, thereby avoiding swinging of the hanging rope and the plummet in a roadway with a large wind speed and avoiding errors of the measuring point of the total station due to position change of the plummet.

[0010] Further, the lower end of the windproof shell is lower than the position of the plummet.

[0011] Further, the outer wall of the windproof shell is fixedly connected with a ring-shaped reinforcing ring, which is used for reinforcing the weight of the windproof shell and for workers to grasp and forcibly stabilize the windproof shell.

[0012] Further, the lower end of the rope fixing column is 10-20 cm away from the roadway roof.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model sets the roadway top fixing pipe, thereby fixing the whole device on the anchor rod or anchor cable which has been anchored on the roadway roof, avoiding setting the anchor rod to the roadway top again, and fixing the plummet, thereby avoiding disturbance to the coal seam of the roadway top;

[0015] The utility model sets the windproof shell, thereby completely enclosing the plummet and the hanging rope, avoiding deviation of the measuring point of the total station due to swinging of the plummet in a roadway with a large wind speed, thereby ensuring the through of the roadway.

[0016] The utility model sets the reinforcing ring, on the one hand, facilitating workers to grasp and interfering with the windproof shell to avoid swinging of the windproof shell when necessary, and on the other hand, reinforcing the weight of the windproof shell to avoid swinging of the windproof shell. DRAWINGS

[0017] Figure 1 It is a structure schematic view of the utility model;

[0018] Figure 2 It is a sectional view of the utility model.

[0019] Wherein: 10, roadway top fixing pipe; 11, rope fixing column; 12, hanging rope; 13, groove; 14, plummet; 15, windproof shell; 16, reinforcing ring. CONCRETE IMPLEMENTING METHOD

[0020] The utility model will be explained in detail in combination with the drawings and concrete implementing method.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more. The "trend" in the utility model is described according to the trend when the utility model is in the state. Figure 1

[0022] The utility model discloses a kind of fixing device for total station survey point in roadway of larger wind speed, as shown in Figure 1 And Figure 2 It includes: roadway top fixed pipe 10, rope fixed column 11, suspension rope 12, windproof shell 15.

[0023] Roadway top fixed pipe 10 is vertically arranged, and the upper end of the roadway top fixed pipe 10 is fixed to the lower end of the anchor rod or anchor cable that has been anchored in the roadway roof;Rope fixed column 11 is vertically arranged, and the upper end of the rope fixed column 11 is threadedly connected with the lower end of the roadway top fixed pipe 10, and the lower end of the rope fixed column 11 extends downward through the anchor net, and a groove 13 is horizontally arranged at the lower end of the rope fixed column 11, and a through hole is arranged from bottom to top at the lower end of the rope fixed column 11, and the through hole and the groove 13 are in communication with each other. The lower end of the rope fixed column 11 is 10-20cm away from the roadway roof.

[0024] The upper end of the suspension rope 12 is successively threaded through the through hole and the groove 13 of the rope fixed column 11, and then tied, and the lower end of the suspension rope 12 suspends a plummet 14, the plummet 14 is arranged close to the center of the roadway, and is used to place a total station directly below it. The total station is to be installed directly below the plummet 14, and the plummet 14 is to be as close as possible to the measuring point or calibration point of the total station.

[0025] ​The wind shield 15 is a cylindrical structure with small upper end and large lower end, the upper end of the wind shield 15 is sleeved and fixed at the lower end of the rope fixing column 11, the lower end of the wind shield 15 extends downward and completely encloses the hanging rope 12 and the drop ball 14, thereby avoiding the swinging of the hanging rope 12 and the drop ball 14 in the roadway with large wind speed, and avoiding the error of the measurement point of the total station due to the position change of the drop ball 14. The material of the wind shield 15 is preferably light to avoid the pulling of the roadway roof by gravity.

[0026] The lower end of the wind shield 15 is lower than the position of the drop ball 14. The lower end of the wind shield 15 is higher than the total station. The outer wall of the wind shield 15 is fixedly connected with a ring-shaped reinforcing ring 16, the reinforcing ring 16 is used for reinforcing the weight of the wind shield 15, and also used for the staff to grasp and forcibly stabilize it.

[0027] Embodiment 1

[0028] There is a problem that a drop ball 14 is fixed on the top of the roadway by using a wooden wedge in a roadway with large wind speed, and the wooden wedge is easy to corrode, easy to damage and unstable.

[0029] Therefore, when the rope fixing column 11 of the utility model is manufactured, the scrap anchor rod or scrap reinforcing bar is used to manufacture a steel column with a length of 15cm-20cm, a groove 13 with a length of 2.5cm and a depth of 1.2cm is opened in the range of 2cm-4.5cm of the lower end of the steel column, and then a through hole 14 is opened at the bottom of the steel column by using an electric drill.

[0030] Then the hanging rope 12, the drop ball 14 and the wind shield 15 are installed on the rope fixing column 11, and are fixed on the lower end of the anchor rod or anchor cable which has been anchored on the roadway roof through the roadway top fixing pipe 10.

[0031] In use, the swinging of the drop ball 14 is very small with the assistance of the wind shield 15, the total station is placed below the drop ball 14, and the roadway is measured, thereby ensuring the through of the roadway.

[0032] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fixing device for total station measuring points in roadways with high wind speeds, characterized in that, include: The roadway top fixing pipe (10) is set vertically, and its upper end is fixed to the lower end of the anchor rod or anchor cable that has been anchored to the roadway top plate; The rope fixing post (11) is set vertically, with its upper end threadedly connected to the lower end of the roadway top fixing pipe (10), and its lower end passing through the anchor net and extending downward. A groove (13) is provided horizontally at the lower end of the rope fixing post (11), and a through hole is provided from bottom to top at the lower end of the rope fixing post (11). The through hole and the groove (13) are interconnected. The suspension rope (12) is tied after its upper end passes through the through hole and groove (13) of the rope fixing post (11) in sequence, and a plumb bob (14) is suspended at its lower end. The plumb bob (14) is set close to the center of the tunnel and is used to place the total station directly below it. The windproof shell (15) is a cylindrical structure that is smaller at the top and larger at the bottom. Its upper end is fitted and fixed to the lower end of the rope fixing post (11), and its lower end extends downward and completely surrounds the suspension rope (12) and the plumb bob (14), thereby preventing the suspension rope (12) and the plumb bob (14) from swinging in the roadway with high wind speed, and preventing the measurement points of the total station from having errors due to the position change of the plumb bob (14).

2. The fixing device for total station measuring points in roadways with high wind speeds according to claim 1, characterized in that, The lower end of the windshield shell (15) is lower than the position of the plumb bob (14).

3. The fixing device for total station measuring points in roadways with high wind speeds according to claim 1, characterized in that, An annular reinforcing ring (16) is fixedly connected to the outer wall of the windshield shell (15). The reinforcing ring (16) is used to reinforce the weight of the windshield shell (15) and is also used by workers to grab it and forcibly stabilize it.

4. The fixing device for total station measuring points in roadways with high wind speeds according to claim 1, characterized in that, The lower end of the rope fixing post (11) is 10-20cm away from the top of the roadway.

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