Monitoring device suitable for surface cracks of strip mine slope

Abstract

The utility model discloses a monitoring device suitable for open-pit mine slope surface cracks, and relates to the technical field of open-pit mine crack monitoring equipment. The device comprises a first steel chisel, a second steel chisel and a steel ruler, the first steel chisel and the second steel chisel are correspondingly installed on the two sides of an earth surface crack, a pulley and a steel ruler wheel are sequentially and rotationally installed on the second steel chisel from top to bottom, one end of the steel ruler is connected with the first steel chisel, and the other end of the steel ruler is wound on the steel ruler wheel after passing through the pulley. The steel ruler has the advantages that the structure is simple, the installation is convenient, the cost is low, an operator monitors the change of the scales of the steel ruler through the observation hole to record the change trend of a crack, the recording is simple and convenient, and the daily use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of open-pit mine crack monitoring equipment, in particular to a monitoring device suitable for surface cracks of open-pit mine slopes. Background Art

[0002] Cracks will appear on the surface of the open-pit mine slope due to displacement. In order to ensure the slope stability, it is necessary to master the change trend of the cracks after they are discovered. The ground crack monitoring work is an important daily work for subsidence observation in coal mining areas and open-pit slope observation. Observing multiple fine cracks is a complicated and long-term task. The investment in using automatic monitoring equipment is high, and it also needs to be frequently removed and added as the production site moves, which is time-consuming and laborious. Content of the Utility Model

[0003] In view of the above technical problems, the utility model provides a monitoring device suitable for surface cracks of open-pit mine slopes, which is used to solve the problems of high investment in using automatic monitoring equipment to monitor surface cracks of open-pit mine slopes, frequent removal and addition as the production site moves, and being time-consuming and laborious.

[0004] In order to achieve the above purpose, the technical solution of the utility model is specifically as follows:

[0005] A monitoring device suitable for surface cracks of open-pit mine slopes includes a first steel drill rod, a second steel drill rod and a steel tape. The first steel drill rod and the second steel drill rod are correspondingly installed on both sides of the surface crack. A pulley and a steel tape wheel are rotatably installed on the second steel drill rod from top to bottom in sequence. One end of the steel tape is connected to the first steel drill rod, and the other end is wound around the steel tape wheel after passing through the pulley. A baffle is arranged at the top of the second steel drill rod, and an observation hole is opened on the baffle. The change trend of the crack is recorded by monitoring the change of the steel tape scale through the observation hole.

[0006] A viewing tube is installed at the lower end of the observation hole on the baffle, and the bottom end of the viewing tube is attached to the scale surface of the steel tape.

[0007] The steel tape is detachably connected to the first steel drill rod.

[0008] A volute spring is installed on the steel tape wheel, and the steel tape is wound around the volute spring in cooperation.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] 1. The structure of the utility model is simple, the installation is convenient, the cost is low, and the operator records the change trend of the crack by monitoring the change of the steel tape scale through the observation hole. The recording is simple and convenient, meeting the daily use requirements;

[0011] 2. The viewing tube accurately locks the corresponding scale, ensuring accurate recording of the change trend of the crack and avoiding the problem of inaccurate observed data caused by different observation angles of the operator.

[0012] 3. When disassembling after monitoring, the steel tape can be disassembled from the first steel drill rod, which is convenient for handling.

[0013] 4. After disassembly, the steel tape retracts and is stored under the action of the volute spring, which is convenient to carry. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] In the figure:

[0016] 1. First steel drill rod; 2. Second steel drill rod; 3. Steel tape; 4. Surface crack; 5. Pulley; 6. Steel tape wheel; 7. Baffle; 8. Observation hole; 9. Viewing tube; 10. Volute spring; 11. Pin shaft. Detailed Embodiment

[0017] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0018] A monitoring device applicable to surface cracks of open-pit mine slopes includes a first steel drill rod 1, a second steel drill rod 2 and a steel tape 3. The first steel drill rod 1 and the second steel drill rod 2 are correspondingly installed on both sides of the surface crack 4. A pulley 5 and a steel tape wheel 6 are sequentially rotatably installed on the second steel drill rod 2 from top to bottom through a pin shaft 11. One end of the steel tape 3 is connected to the first steel drill rod 1, and the other end is wound around the steel tape wheel 6 after passing through the pulley 5. A baffle 7 is provided at the top of the second steel drill rod 2, and an observation hole 8 is opened on the baffle 7. The structure of the present utility model is simple, easy to install, low in cost. The operator monitors the change of the scale of the steel tape 3 through the observation hole 8 to record the change trend of the crack, and the record is simple and convenient, meeting the daily use requirements.

[0019] A viewing tube 9 is installed at the lower end of the observation hole 8 on the baffle 7. The bottom end of the viewing tube 9 is attached to the scale surface of the steel tape 3. The viewing tube 9 accurately locks the corresponding scale, ensuring accurate recording of the change trend of the crack and avoiding the problem that the observed data is inaccurate due to different observation angles of the operator.

[0020] The steel tape 3 and the first steel drill rod 1 are detachably connected. When disassembling after monitoring, the steel tape 3 can be disassembled from the first steel drill rod 1, which is convenient for handling.

[0021] A scroll spring 10 is installed on the steel ruler wheel 6, and the steel ruler 3 is wound around the scroll spring 10. After disassembly, the steel ruler 3 retracts and is stored under the action of the scroll spring 10, which is convenient to carry.

[0022] During use:

[0023] Insert the first steel drill 1 and the second steel drill 2 on both sides of the surface crack 4 of the open-pit mine slope. After pulling out the steel ruler 3, connect it to the first steel drill 1. The operator records the initial value through the observation hole 8. After a certain period of time, the operator observes the value in the viewing tube 9 again and records it. Through the comparison of multiple groups of data, the change trend of the surface crack 4 of the open-pit mine slope can be accurately controlled.

[0024] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A monitoring device applicable to surface cracks of open-pit mine slopes, characterized in that: It includes a first steel drill rod (1), a second steel drill rod (2) and a steel ruler (3). The first steel drill rod (1) and the second steel drill rod (2) are correspondingly installed on both sides of the surface crack (4). A pulley (5) and a steel ruler wheel (6) are rotatably installed on the second steel drill rod (2) from top to bottom in sequence. One end of the steel ruler (3) is connected to the first steel drill rod (1), and the other end is wound around the steel ruler wheel (6) after passing through the pulley (5). A baffle (7) is provided at the top of the second steel drill rod (2), and an observation hole (8) is opened on the baffle (7).

2. The monitoring device for surface cracks of open-pit mine slopes according to claim 1, wherein: A viewing tube (9) is installed at the lower end of the observation hole (8) on the baffle (7), and the bottom end of the viewing tube (9) is attached to the scale surface of the steel ruler (3).

3. The monitoring device for surface cracks of open-pit mine slopes according to claim 2, characterized in that: The steel ruler (3) is detachably connected to the first steel drill rod (1).

4. The monitoring device for surface cracks of open-pit mine slopes according to claim 3, wherein: A volute spring (10) is installed on the steel ruler wheel (6), and the steel ruler (3) is wound around the volute spring (10) in cooperation.

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